CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.0 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 CITY & INDUSTRIAL DEVELOPMENT CORPORATION OF MAHARASHTRA LIMITED Name of Work : Construction of approach road from Pandav-Taloja junction to HSR plot, in Sector - 22 Kharghar, Navi Mumbai. (2 ND CALL) C. A. No.12/CIDCO/EE(KHR-II)/2012-13 Due on : 10/01/2013 to 15/01/2013 on website cidco.maharashtra.etenders.in Price : ` 10,000/- (Rupees Ten Thousand only) (Non-Refundable) :OFFICE : CHIEF ENGINEER (SOUTH) CIDCO OF MAHARASHTRA LIMITED, 3 RD FLOOR, CIDCO BHAVAN, CBD-BELAPUR, NAVI MUMBAI.
Transcript
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.0
C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
CITY & INDUSTRIAL DEVELOPMENT CORPORATION OF
MAHARASHTRA LIMITED
Name of Work : Construction of approach road from Pandav-Taloja
junction to HSR plot, in Sector - 22 Kharghar, Navi
Mumbai.
(2ND
CALL)
C. A. No.12/CIDCO/EE(KHR-II)/2012-13
Due on : 10/01/2013 to 15/01/2013 on website
cidco.maharashtra.etenders.in
Price : ` 10,000/- (Rupees Ten Thousand only) (Non-Refundable)
:OFFICE :
CHIEF ENGINEER (SOUTH)
CIDCO OF MAHARASHTRA LIMITED,
3RD
FLOOR, CIDCO BHAVAN,
CBD-BELAPUR, NAVI MUMBAI.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.1
C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Name of Work : Construction of approach road from Pandav-Taloja
junction to HSR plot, in Sector - 22 Kharghar, Navi
Mumbai.
INDEX
Sr. No. Description Sl. Pg. No.
1. Index 1 2
2. Tender Notice 3 6
3. Tendering Programme 7 7
4. Notice of Tender & Instructions to the Tenderers 8 17
5. Undertaking by the Tenderer while Submission of Tender 18 20
6. Special Conditions of Contract 21 34
7. Proforma of :
a) Contract Agreement 35 38
b) Bank Guarantee in Lieu of Contract Deposit 39 43
c) Indenture Bond 44 48
d) Promissory Note 49 49
e) Indemnity Bond 50 51
f) Bank Guarantee in Lieu of E.M.D. 52 55
g) Affidavit for Preservation of Mangroves 56 57
8. General Conditions of Contract 58 173
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.2
C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Sr. No. Description Sl. Pg. No.
9. Proforma Agreeing to G.C.C. 174 174
10. Notes & Preambles to Schedule of Rates & Quantities
(Schedule “A”)
175 180
11. Schedule “A” (Bill of Quantities) 181 211
12. Annexure “A” 212 213
13. Schedule “B” 214 214
14. Particular Specifications for Road Work 215 324
15. Particular Specifications for S.W. Drain Work 325 367
16. Checklist for Ready Mix Concrete 368 377
17. List of Approved Makes / Brands 378 378
18. List of Drawings 379 379
19. Drawings 380 390
20. Corrigendum (if any)
__________________ ___________________
Signature of Tenderer Chief Engineer (South)
Date : Date :
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.3
C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
TENDER NOTICE
Tender Notice published in daily Marathi News Paper
“Punya-Nagari” dated 07/12/2012
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.4
C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
TENDER NOTICE (2
ND CALL)
CIDCO of Maharashtra Limited through the process of e-tendering invites “ON
LINE” item rate percentage tenders from the reputed experienced prospective
bidders, registered with CIDCO Ltd., Maharashtra State PWD, CPWD, MJP,
MIDC, MCGM in appropriate class, who have completed work of similar nature
for the work mentioned below:
Sr.
No.
Description Details
1. Name of Work Construction of approach road from Pandav-
Taloja junction to HSR plot, in Sector-22
Kharghar, Navi Mumbai.
2. C. A. No. 12/CIDCO/EE(KHR-II)/2012-13.
3. Estimated Cost (` in lacs) ` 284.96 lacs
4. EMD ` 2,85,000.00
5. Registration Class Class – III & Above
6. Completion Period 12 (Twelve) months including monsoon.
7. Cost of Blank Tender
document
` 10,000/- (Non refundable)
ELIGIBILITY CRITERIA
1) Pre-qualification “On-Line” submission shall be accompanied by attested
copies of:
a) Valid Registration Certificate.
b) Sales Tax Certificate (MVAT).
c) Income Tax Permanent Account Number.
2) Experience of having successfully completed works during the last 5 (Five)
years ending last day of the month previous to the one in which applications
are invited.
(a) One similar completed work of costing not less than the amount equal to
50% of the estimated cost;
OR
(b) Two best similar completed works adding to a total cost of minimum
80% of the estimated cost of proposed work;
OR
(c) Three best similar completed works adding to a total cost of minimum
90% of the estimated cost of proposed work.
3) Joint Venture/Consortium are not permitted.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.5
C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
4) Financial Criteria: The Prospective Bidders will be qualified only if they
have minimum financial capabilities as below:-
i) Working Capital (Current Assets – Current Liabilities): Working
Capital (Net Cash Flow) of the Prospective Bidders during last audited
financial years should be greater than ` 71.25 lacs.
ii) Profitability: Profit after Tax should be Positive FOR “Two Years” out
of last three consecutive financial years: such that it should be positive
for immediate last financial year and one year out of two previous years.
iii) Net Worth: Net worth of Prospective Bidder during last audited
financial year should be greater than ` 28.50 Lacs.
iv) Average Annual Turnover: The average annual turnover of last three
financial years should be equal to or greater than ` 214.00 Lacs.
Notes: i) Turn over will be considered for main bidder and not for the Group
Company or Subsidary Company for all members of consortium put
together.
ii) The value of works shall be brought to current costing level by
enhancing the executed value of work at simple rate of 7% per annum.
iii) The information regarding Financial Criteria and Average Annual Turn
over certified by Chartered Accountant will be only considered.
5) Bid Capacity Criteria:
The Prospective Bidder will be qualified only if their available bid capacity
is more than the Estimated Cost of the work as per notice inviting Tender.
The available bid capacity will be calculated based on the following
formula:
Available Bid capacity= (2 x A x N) - B
where,
A = Average Annual Turn Over for last three financial years.
N = No. of years prescribed for completion of the work.
B = Value of existing commitments and on going works to be completed
during the period of completion of work.
Notes :
1) For Pre-qualification on-line submission shall be accompanied by attested
copies of Registration, valid Bank solvency certificate, sales tax certificate
(MVAT), Income Tax Permanent Account No., list of technical staff, list of
plant, machinery and equipments, list of works & it‟s magnitude executed in
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.6
C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
last Five years along with work completion certificates, list of works in
hand.
The applicant should also produce original documents for verification if
called for. Failure to attach necessary documents with application will
render applicant ineligible for purchase / downloading of blank tender
without any intimation.
2) Right to issue tender documents is reserved with CIDCO. CIDCO reserves
right to reject any or all tenders without assigning any reason and the same
shall be at the entire discretion of CIDCO. CIDCO‟s decision in this respect
shall be final and binding.
3) Conditional tenders shall be summarily rejected.
4) The offer shall remain valid for a period of one hundred twenty (120) days
from the date of submission of tender.
5) The agencies eligible on the basis of CIDCO‟s registration & having fixed
EMD with CIDCO will have to enclose the valid EMD exemption
certificate of appropriate amount issued by CIDCO. In case the agency who
have fixed EMD for an amount less than required EMD, will have to pay the
balance amount of EMD. In remaining cases the eligible contractor has to
pay full EMD, as prescribed in the Tender Document.
6) Tender price money of ` 10,000/- (non-refundable) will be accepted by
Demand Draft only, drawn in favour of “CIDCO LTD”, payable at Navi
Mumbai and copy of the receipt shall be uploaded before purchase of tender.
7) For further details regarding the above, contact Executive Engineer (KHR-
1) Submission of original Demand Draft towards cost of tender document, original EMD documents (Demand Draft / Bank Guarantee) and undertaking for submission of tender on 14.01.2013 during office hours in the office of Executive Engineer (KHR-II), CIDCO Ltd., 1st Floor, CIDCO Nodal
Office, Sector – 4, Kharghar, Navi Mumbai.
2) Online queries will be uploaded on email ID [email protected] and reply to queries will be
given on as per time mentioned in the tendering programme.
3) Tenderer may attend financial bid opening as mentioned above. No separate intimation will be given
regarding tender opening.
__________________ ___________________
Signature of Tenderer Chief Engineer (South)
Date : Date :
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.8
C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
NOTICE OF TENDER AND INSTRUCTIONS
TO TENDERERS
Name of Work : Construction of approach road from Pandav-Taloja
junction to HSR plot, in Sector - 22 Kharghar, Navi
Mumbai.
1.0 TENDER DOCUMENTS
1.1 The tenderer should attach scanned copies of attested documents in PDF
format for “ON-LINE” submission.
2.0 TENDER PRICE AMOUNT
Tenderers are required to submit the tender price amount of ` 10,000/-
(Rupees Ten Thousand only) (Non-Refundable) by way of separate
demand draft drawn in favour of “CIDCO Ltd.” payable at Mumbai / Navi
Mumbai and the same should necessarily be scanned and uploaded in PDF
format for downloading the on-line tender document.
3.0 EARNEST MONEY
The tenderer shall deposit and keep deposited (for the period specified
hereafter) with CIDCO a sum as shown in this tender notice as the Earnest
money. The Earnest Money shall be deposited in one of the following
forms.
(i) By Demand draft in favour of CIDCO Limited payable at Mumbai /
Navi Mumbai.
(ii) By an irrevocable and unconditional Bank Guarantee executed by a
Nationalised/Scheduled Bank located either in Mumbai or Navi
Mumbai in the form prescribed and valid for 180 days from the last
date prescribed for submission of tender.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.9
C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
E.M.D. in the form of irrevocable, unconditional Bank Guarantee will be
accepted only if, E.M.D. amount payable is equal or more than ` 1.00 lac
i.e. in the cases where estimated cost put to tender is equal or more than
` 100.00 lacs.
FIXED EMD : The agencies who are eligible to quote the tenders based
on CIDCO Registration and availing the facility of EMD Exemption by
depositing requisite amount with CIDCO Ltd., are required to pay the
difference in amount of EMD fixed for the present tender and amount
already deposited with CIDCO Ltd., for availing the facility of EMD
exemption. The tenderer shall upload the same and also submit attested
copy of valid EMD exemption certificate issued by Executive Engineer
(NM), CIDCO Ltd. to the tender issuing authority prior to opening of
financial bids.
The tenderers who are eligible for issuance of tender document on the
basis of registration other than CIDCO registration, shall not be eligible
for availing the facility of EMD Exemption and shall pay full EMD
amount.
3.1 The failure or omission to deposit or keep deposited the Earnest Money
shall disqualify the tenderer for this tender.
3.2 No interest shall be payable by CIDCO in respect of such deposited
Earnest Money.
3.3 The Earnest Money of an unsuccessful tenderer shall be refunded after the
final decision on the tenders or on expiry of the validity period whichever
is earlier on presenting receipt thereof.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.10
C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
3.4 a) Invitation by CIDCO to submit the on-line tender shall be a proposal
and the on-line submission of a tender by the tenderer shall be an
acceptance of such proposal to win the contract. The tenderer shall not
revoke his offer or vary terms and conditions of tender without the
consent of CIDCO during the period of 120 days counted from the last
day appointed by CIDCO for submission of on-line tenders. If the
tenderer revokes his offer or varies terms or conditions of tender
contrary to his promise to abide by this condition, the Earnest Money
Deposited by him shall stand forfeited to CIDCO without prejudice to
its other rights and remedies. Without prejudice to the foregoing
clause, the tenderer shall be disentitled to submit a tender to CIDCO
for execution of any civil work for a period as may be decided by
Chief Engineer (South) effective from the date of such revocation or
variations of the terms and conditions of the tender.
b) The authorized signatory of the lowest tenderer shall duly sign with
their company seal on each page of the hard copy of the tender
documents prepared, within 7 (seven) working days after issue of
Letter of Acceptance (LOA).
3.5 If CIDCO accepts the tender and signify such acceptance to the tenderer,
the earnest Money so deposited with CIDCO by Demand Draft shall be
adjusted appropriately towards Performance Security payable by the
contractor in accordance with Condition No.10.1 of the General
Conditions of Contract.
3.6 If the tenderer has deposited the Earnest Money by a Bank Guarantee and
he has been communicated the acceptance of his tender by CIDCO and if
he fails or omits to furnish the Contract Deposit within 15 days in
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.11
C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
accordance with condition No.10.1.1 of the General Conditions of
Contract, CIDCO shall be entitled to encash the Bank Guarantee.
3.7 In case of the successful tenderer, on payment of the required amount of
the Contract Deposit, the Earnest Money Deposited in the form of Bank
Guarantee/Demand Draft/pay order shall be refundable to the successful
tenderer in the event of CIDCO deciding the award of the contract.
3.8 The E.M.D. of the successful tenderer shall be forfeited if :
3.8.1 The E.M.D. of the successful tenderer shall be forfeited if he
withdraws/revokes his offer or modifies/changes the same during the
validity of the tender, or if after the acceptance of his tender, the contractor
fails or neglects to furnish the balance Contract Deposit within 15 days.
3.8.2 The E.M.D. of the successful tenderer shall be entitled for forfeiture if he
fails to execute contract agreement within 30 days from the date of issue
of Letter of Acceptance.
3.9 The tenderers may also be dis-qualified for tendering for further works in
CIDCO as provided in foregoing Clause No.3.4 on Sl.Pg.No.10.
4.0 INTERPRETATION OF CONDITIONS OF CONTRACT
The tenderer shall be deemed to have studied all plans, specifications,
terms and conditions of tender and visited the site of work and made
himself acquainted with the site conditions, availability of labour, basic
materials, water, electricity, approach road to the site etc., before on-line
submission of tender, whether the tenderer inspects them or not.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.12
C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
The tenderer shall be deemed to have made independent enquiries about
probable taxes leviable by the local civic authority or the Government. The
ignorance about probable taxes to be paid either to the local civic authority
or to the government shall not be considered as an excuse. The percentage
quoted by tenderer shall be deemed to include all the taxes, octroi, duties,
royalties etc., payable under the rules to local civic authority, and/or
Government/Statutory body.
On-line submission of tender implies that tenderer has read these
conditions and other contract documents of the tender as well as the
conditions of the tender and has made himself aware of the same as also
about the conditions and other factors having bearing on the execution of
the order.
In case of difference of opinion or dispute regarding the interpretation of
tender conditions, the interpretation of any of the conditions by Chief
Engineer (South) of CIDCO Limited shall be final and binding on the
tenderer.
5.0 MAIN TENDER DOCUMENT
Main tender document shall be downloaded from the website. Any other
queries can be uploaded online as per the tendering programme. Right to
issue tender documents is reserved with CIDCO.
6.0 METHOD OF SUBMISSION OF TENDER
The complete tender submission, “ON-LINE” on the website
cidco.maharashtra.etenders.in, can be made only after payment of
requisite fees through payment gateway of the service provider by pre-
qualified tenderers.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.13
C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
6.1 Tender should be submitted through website http://cidco.maharashtra.
etenders.in and on-line only.
The scanned copy of the valid E.M.D. documents of appropriate amount in
PDF format shall be uploaded along with submission of on-line tender.
Original Demand Draft towards cost of tender document (Tender
Price Amount), original EMD documents (Demand Draft / Bank
Guarantee) and undertaking while submission of tender shall be
submitted in sealed Envelope as prescribed in tendering
programme. Financial bid will not be opened till the above
documents are submitted. In no case the tender price amount
should be clubbed with E.M.D. amount.
6.2 Late tender offers : Tenderer‟s grievance / complaint on account of non-
submission of tender due to problem in internet, electricity or any other
reason will not be considered.
7.0 METHOD OF OPENING OF TENDER
On the date and time specified in the tender programme, the tenders will
be opened in the presence of tenderers / their representative through e-
tendering procedure at SAP Office, 6th
Floor, CIDCO Bhavan, CBD-
Belapur, Navi Mumbai.
8.0 VALIDITY OF TENDER
Validity of the tender shall be 120 days from the specified date of receipt
of tender by CIDCO and there after until it is withdrawn by notice in
writing duly addressed to the authority opening the tender. Such
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.14
C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
withdrawal by tenderer will be effective from the date of receipt of notice
by the tender opening authority.
9.0 IMPORTANT POINTS TO BE NOTED BY THE TENDERER
a] The on-line submission of tender document should be done on website
by the eligible contractors as per tender programme. The tenderer has
to quote only the percentage in figures. The percentage in words as
also the total quoted amount in figures is worked out automatically on
the web page.
b] The price-bid (percentage) shall be inclusive of all taxes, octroi, levies,
duties etc. to be paid by the tenderer for the work and claim for extra
payment on any such account shall not be entertained.
c] Tenderer shall deemed to have studied all plans, specifications, terms &
conditions of contract and made himself/themselves acquainted with
the site and availability of materials, power supply, water supply etc.
before submitting the tender.
d] At any time prior to the deadline for sale of tender, the Employer may
amend the tender documents by issuing Corrigendum.
e) Any corrigendum as well as clarification thus issued shall be a part of
the tender documents and it will be assumed that the information
contained in the amendment have been taken into account by the
tenderer while submitting the tender.
f) To give prospective tenderers reasonable time in which to take the
amendment into account in preparing their tenders, the Employer shall
extend, at its discretion, the deadline for submission of tenders, in
which case, the Employer will notify all tenderers by placing it on
website of the extended deadline and the same will be binding on
them.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.15
C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
g] The Employer is not bound to accept the lowest or any tender. The
Employer reserves the right to reject any or all tenders received
without assigning any reasons whatsoever.
h] This detailed tender notice shall form part of tender documents.
i] Income Tax as applicable on gross bill at percentage that will be in
force from time to time will be recovered from the contractor‟s bills
and all payment including advances.
j] The successful tenderer is required to execute an agreement on stamp
paper of appropriate value in duplicate in the proforma attached with
the tender documents. The agreement shall be signed within a period
of 30 days from date of acceptance of the tender.
10.0 ACCEPTANCE OF TENDER
Acceptance of tender on behalf of the Employer shall be done by an
officer to whom the powers are delegated by the Employer.
11.0 EXECUTION OF CONTRACT AGREEMENT
The successful tenderer is required to execute a contract agreement in
duplicate in the form attached with the tender documents on stamp paper
of appropriate value. The contract agreement should be signed within 30
days from the date of acceptance of the tender.
12.0 The successful tenderer will be required to produce a valid contract labour
license issued in his favour under the provision of the contract labour
(Regulation and Abolition) Act, 1970, before starting the work. On failure
to do so, the acceptance of the tender is liable to be withdrawn and also the
earnest money is liable to be forfeited.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.16
C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
13.0 The Contractor shall pay the Contract Sales Tax and turnover tax etc.
directly to the Government. CIDCO shall not take any responsibility for
any kind of tax payment to the Government at any point of time.
14.0 Under Inter-state Migrant Workmen Act and /or Contract Labour Act, the
Contractor should obtain requisite license / registration Certificate under
the Act while engaging the migrant labour from other State.
15.0 Contractors quoting for the work in NMMC area must have valid
NMMC Registration Certificate under Cess Act.
16.0 Wherever the tender is silent about the specifications, the work shall be
executed as per the Standard Specifications from PWD, Indian Standard
Specifications (Latest Version) for relevant items and specifications of the
Ministry of Road Transport & Highways and all specifications of
materials and workmanship.
17.0 SPLITTING OF WORK
CIDCO reserves the right to suitably increase/reduce the scope of work
put to this tender. The right to split up the work in two or more parts is
reserved by the Employer and also the right to award the work to more
than one agency is reserved. The contractor shall have no claims
whatsoever on this account.
18.0 The tenderer shall furnish truly & faithfully the foregoing information by
an Affidavit on a Non-Judicial stamp paper of appropriate value. If any
information so furnished is found untrue or false, the tender shall be liable
to be dis-qualified and the Earnest Money / Performance Security as the
case may be accompanying such tender shall stand forfeited to CIDCO. If
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.17
C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
the information so furnished shall be found to untrue or false during
the currency of the contract, the tenderer shall be held to be in default
and the contract if any awarded to him shall be liable to be terminated with
its consequences.
19.0 Notice of tender and these instructions to the tenderers shall form part of
the contract.
__________________ ___________________
Signature of Tenderer Chief Engineer (South)
Date : Date :
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.18 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
UNDERTAKING BY THE TENDERER WHILE
SUBMISSION OF TENDER
From : _____________________
_____________________
To, The Chief Engineer (South) CIDCO of Maharashtra Limited, 3rd Floor, CIDCO Bhavan, CBD-Belapur, Navi Mumbai.
Name of Work : Construction of approach road from Pandav-Taloja junction to HSR plot, in Sector - 22 Kharghar, Navi Mumbai.
C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Sir,
1) I/We _______________________________________ hereby tender for
Construction of approach road from Pandav-Taloja junction to HSR
plot, in Sector - 22 Kharghar, Navi Mumbai at a total cost which is
quoted in the financial bid on-line at the rate contained in the aforesaid
Schedule of rates and quantities (Schedule - A) including adding to
percentage the rate or deducting the percentage therefrom in case of
percentage tender.
2) I/We agree to execute this work at the above stated offer in accordance
with design, drawings, specifications, instructions/directions, special
conditions of contract & general conditions of contract supplied by
CIDCO which I/We have read carefully and agree to abide by such
conditions.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.19 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
3) I/We agree to keep this tender offer open and available to you for
acceptance for a period of 120 (One Hundred Twenty) days from the last
date appointed by CIDCO for on-line submission of tender and further
agree not to revoke the tender or vary its terms and conditions. I/We agree
to the Employer that if I/we revoke the tender or vary its conditions at any
time during such period, the earnest money deposited by us in cash or by
way of bank guarantee shall stand forfeited to you without prejudice to
Employers other rights and remedies.
4) I/We have satisfied myself/ourselves as to the location of the site and
working conditions, examined the requirements of CIDCO, and have
obtained all the information necessary for the successful timely
completion of the work.
5) I/We bind myself/ourselves to deposit the Contract Deposit by way of cash
or as per CIDCO rules, as prescribed in Clause 10.1.1 of General
Conditions of Contract and/or special conditions of contract within 15
days after receiving your notice that the contract has been awarded to
me/us, failing which I/We shall have no objection to the forfeiture of the
earnest money in full, or also the said earnest money shall be retained by
the Employer towards the Performance Security as specified in the
conditions. I/We further bind myself/ourselves to execute the contract
document and to commence work within stipulated period as mentioned in
General Conditions of Contract, failing which I/We agree to the Employer
forfeiting the earnest money and Performance Security. The said
Employer shall also be at liberty to cancel the notice of acceptance of
tender if I/We fail to deposit the Performance Security as specified or to
execute an agreement or to start work as stipulated in the tender
documents.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.20 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
6) I/We hereby pay the Earnest Money of ` ____________ in the form of
Demand Draft / Bank Guarantee No. _____________________ issued by
____________________________ for the said amount is attached.
7) I/We understand that you are not bound to accept the lowest tender or
bound to assign any reason for rejecting our tender.
8) I/We agree that the CIDCO shall without prejudice to any other right or
remedy, be at liberty to forfeit the said earnest money as per Clause No.3.8
of Notice of Tender & Instructions to Tenderers.
Yours faithfully,
(Signature of Tenderer with seal of the firm )*
Signature of Witness
Date :
Name : ______________________
Address :_____________________
Occupation: _________________
* Power of attorney must be enclosed in case the tender is signed by the
authorized nominees.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.21 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
SPECIAL CONDITIONS OF CONTRACT
1.0 GENERAL
The special conditions of contract are to be read in conjunction with
General conditions of contract. If there are any variations or
discrepancies or conflicting provision, the provisions in Special
Conditions shall take precedence over the provisions in the General
Conditions of contract.
2.0 SCOPE OF WORK
The tender is for the work of “Construction of approach road from
Pandav-Taloja junction to HSR plot, in Sector - 22 Kharghar,
Navi Mumbai”. The work to be carried out under the contract shall
except as otherwise provided in this conditions include all labour,
material, tools, plants, equipment & transport which may be required
in preparation and completion of the works.
The description given in the schedule of works/ items/quantities, and
the Bills of Quantities shall, unless otherwise stated, be held to include
waste on materials, carriage & cartage carrying in, return of empties,
hoisting, setting, fitting & fixing in position and all other labour
necessary in & for the full and entire execution & completion as
aforesaid in accordance with good practice & recognized principles.
2.1 The scope of work as described in detailed in schedule “A”. Items of
work to be executed are described in detail to enable the tenderer to
work out rate of each element.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.22 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 2.2 The exact methodology and quality / quantity audit of various items
under Schedule “A” and parts shall be incorporated in the Q.A.M. and
such shall be based on / referred as per the approved Q.A.M. of
CIDCO Limited Engineering Department (2009) and further approved
by Engineer.
2.3 The various items under Schedule “A” will be comprehensively
undertaken as directed by Engineer and laid out programme in the
Quality Assurance Manual (QAM).
3.0 FIELD LABORATORY
The contractor shall establish a Field Laboratory for the various field
tests for items like concrete cubes, cement aggregates, sand, bitumen &
bitumen products, soil, field density and for similar items as directed
by the Engineer. A site laboratory of approx. 3.0 m. x 4.0 m. area with
platform etc. shall be constructed as directed by the Engineer. A
contractor shall appoint experienced Laboratory Technician to carryout
various tests at site.
The laboratory must have the following equipments :-
A Slump Cone 1 No. B Cube Moulds for concrete 12 Nos. C Weigh Balance (2 kg., 5 kg., 20 kg. capacity) 2 Nos. D IS Sieves (For Coarse & Fine Aggregates) murum 1 Set (Each) E Glass measuring cylinders 3 Nos. F Moisture Meter 1 No. G Field density test equipment with sand pouring
H Bitumen Extraction Apparatus (Manual) 1 No. I Thermometer (Digital) 1 No. J Compressive Testing Machine 1 No. K Cement Testing Apparatus 2 Nos.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.23 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 Construction of field Laboratory well equipped with equipment as
listed above is incidental to the work and no separate payment will be
made for this. He should also obtain all relevant I.S. Codes,
Specification books and be kept at site office.
The contractor shall carry out other various tests for various items and
materials at IIT or VJTI laboratories or any other approved laboratory
as directed by the Engineer at contractor's own cost. At the end of each
month for each category of the work, i.e. PCC/RCC work, masonry
work etc. the contractor shall give statistical analysis of all the test
results in the format prescribed by the Engineer and take corrective
action in the work in accordance with these results.
4.0 TESTING OF MATERIALS IN CIDCO LABORATORY
CIDCO has a well equipped testing laboratory for carrying out various
tests. The Engineer may direct the Contractors to get the samples of
materials tested etc. in CIDCO laboratory. The results of the tests are
normally binding on the Contractor and CIDCO. The Engineer is also
empowered to take action to reject or approve materials based on the
test results.
The Contractors shall pay the stipulated charges for carrying out the
tests as per CIDCO rules. In case the Contractor disputes the results of
tests, it is open for him to ask for the re-testing in which case the cost
shall be borne by the Contractor. The decision of the Chief Engineer
(South) on acceptability or otherwise of CIDCO test results, re-testing
by CIDCO or testing again independently in V.J.T.I. or I.I.T will be
binding on both the parties to the contract.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.24 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 5.0 ADJUSTMENT OF ERRORS IN SCHEDULE OF RATES AND
QUANTITIES
The several documents forming the contract are to be taken as
mutually explanatory of one another, detailed drawings being
followed in preference to small scale drawings and figured dimensions
in preference to scaled dimensions.
The Contractor shall be deemed to have calculated his own unit rates
from the descriptions of items in Schedule ‘A’ and based on the
drawings, specifications and other information furnished to him and
arrived at price for each item of work as given in Schedule “A”. The
price shall be worked out by him independently of the prices or rates
mentioned by CIDCO in the tender and irrespective of any errors or
inaccuracies therein. The percentage to be inserted by the Contractor
above or below the cost mentioned by CIDCO, shall be derived by
him from the amount tendered by him as compared to the amount
mentioned by CIDCO.
The tendered amount shall be deemed to include for the full and entire
completion of the work and the Contractor shall have no claims on
account of any errors in the unit rates/prices mentioned by CIDCO.
Any errors in description, quantity or rate in Schedule ‘A’ or any
omissions there from, shall not vitiate the contract or release the
Contractor from the execution of the whole or any part of the work
comprised therein according to drawing and specifications or from any
of his obligations under the contract. Any error in quantity, rate or
amount in Schedule ‘A’ and General Summary shall be adjusted in
accordance with the following rules contained hereinafter :
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.25 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
a) In the event of an error occurring in the amount column of
Schedule ‘A’ as a result of wrong extension of unit rate and
quantity, the unit rate mentioned by CIDCO shall be regarded as
firm and the extension shall be amended on the basis of the rate.
b) All errors in totaling in the amount column and in carrying
forward totals shall be corrected.
c) Any omission to include in the totals or to carry forward the
provisional sums shall be corrected.
d) The tendered sum so altered, shall for the purpose of the tender, be
substituted for sum originally tendered and considered for
acceptance instead of the original sum quoted by the Contractor.
Any rounding off of total in various sections of Schedule ‘A’ or in
General Summary by the tenderer shall be ignored.
e) In the event of discrepancy occurring between the rates quoted
below the item description and the rates taken for working out
amount as per quantity given in Schedule ‘A’. The lowest of the
two rates shall be considered and the amount shall be corrected
accordingly.
6.0 QUARRY
Quarry for extraction of murum shall not be made available by
CIDCO. The Contractor has to make his own arrangement for quarry
at his own cost.
The contractors are requested to obtain quarry permission from
Competent Authority for excavation required for the work. Therefore,
the contractors will have to pay the necessary Royalty charges for the
quarries. Royalty will have to be paid as per the prevailing rates on the
minor minerals available from the excavation of channels, roads or
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.26 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
drains adjoining the roads, bunds, trenches, reclamation, area leveling,
foundation for construction works etc. use for the works in the same
place or at other places.
The Contractor shall have to provide at his cost accesses to the quarry
through private land. All compensation, royalties, fees etc., which
may be required shall be borne by the Contractor without extra cost to
the Employer.
The obstruction and/or impassments caused for access to the quarry
shall be cleared or set right by the Contractor. No claim in this respect
shall be entertained by the Employer.
If Contractor desires to seek No Objection Certificate for Quarry from
CIDCO for a private land or CIDCO land or Government land,
Revenue land, Authorised land etc., the Contractor shall have to apply
indicating therein the Survey Nos., from where he wishes to quarry.
The contractor will have to furnish the necessary revenue maps and
‘Sat-bara’ of private owners and No Objection Certificate of private
Owner/Department for quarrying murum. The necessary charges of
processing the application to the respective Collector of respective
District shall have to be borne by the Contractor. The contractor will
have to pay the necessary ground rent/surface rent of the area if
demanded by the Land Section. The Contractor also will have to pay
the environmental cess, if imposed by the Employer for issuing No
Objection Certificate. After issuing the No Objection Certificate, the
Contractor shall have to execute an agreement with Land Department,
on stamp paper of appropriate value. All the expenditure for
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.27 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
processing the case shall have to be borne by the Contractor and no
claim whatsoever on this account shall be entertained.
The Contractor shall have to submit Quarry Permit before start of
work for the quantity of murum/earth proposed to be brought at site.
6.1 ENVIRONMENTAL CESS
Environmental cess tax @ ` 1.00/cum. will be deducted from the
contractor’s payments for gross volume of murum computed without
deductions as mentioned for monthly payment and final payment.
6.2 QUARRY PERMIT
The successful tenderer shall obtain the quarry permission from the
competent authority and shall submit original permit issued by
competent authority to CIDCO before starting the work and during
subsequent execution of work till its completion. Besides above, the
tenderer shall also submit the original receipt / challan of the payment
made towards quarry charges before each monthly statement.
On completion of work, the contractor shall obtain the “Royalty
Clearance Certificate” from the office of the Collector and the same
shall be submitted to Engineer before final statement/bill. The final
payment will not be paid till above Royalty Clearance Certificate in
original is submitted to Engineer.
7.0 DOCUMENTATION
The contractors are required to submit three copies of as built drawings
in Auto Cad formats with all relevant details on reproducible tracing
(one copy of tracing and three copies of blue prints and all data on CD)
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.28 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
along with the final statement in neat folders. Photographic evidence
of work under execution/completed in form of CD as well as
photographs should also be submitted.
Photography & Videography to be done with the help of Digital
camera for documentation of important activities/events. Three copies
& one C.D of the same should be submitted as directed by Engineer.
This will be at no extra cost to CIDCO.
8.0 QUALITY ASSURANCE SYSTEM
The contractor will prepare detailed work programme with the help of
professional consultant who should be associated with the work. He
shall also ensure the quality of the work.
8.1 Quality Assurance Manual : A Quality Assurance manual constituting
a base document outlining policy, procedures, compliance, acceptance
criteria and documentation etc. shall be prepared by the successful
tenderer and should submit for approval within 15 days from the date
of receipt of Work Order. The document shall generally cover aspects
listed below, but is not limited to the same.
i) Identification of all parties involved in Q.A. and their inter-
relationship.
ii) Internal Q.A. system of each party.
iii) Organization of personnel, responsibilities and lines of reporting
for Q.A. purpose.
iv) Criteria for acceptance / rejection, including identification of
proper authorities for such decisions.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.29 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
v) Inspection at the end and during defect liability period /
maintenance period.
8.2 For all reclamation works as well as the works involving excavation in
hard rock, in order to ensure the correctness / genuineness of the
documents / permissions etc. pertaining to quarry permit and explosive
/ blasting permission, the record should be maintained in the following
format which shall be part of the quality assurance manual.
FORMAT FOR ROYALTY PERMIT &
BLASTING PERMISSION
Sr. No.
Particular of
Document
Issuing Authority
Letter No. Date of Issue
Validity Period
Quantity Permitted
1.
2.
3.
9.0 SAP
CIDCO Ltd. has implemented Enterprise Resource Planning (ERP)
software SAP in the organization for its various processes. The
contractor will furnish all the project related data, if & when required
by the Engineer, in the manner & format which is compatible to
Enterprise Resource Planning software SAP R/3. Apart from the
above, the contractor will make a detailed work program on MS
project in soft & hard copy and submit the same to Engineer for
approval before commencement of work. All monitoring will be done
on SAP R/3 as well as MS project.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.30 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 10.0 RESTRICTION ON THE DESTRUCTION OR DENUDATION
OF MANGROVES IN NAVI MUMBAI
The contractor shall be aware of the directives given by the Hon’ble
High Court in PIL No.3246 of 2005 for preservation of Mangroves.
He shall submit the affidavit on a Stamp Paper of appropriate value in
this respect as per the proforma given in the tender document.
11.0 DEDUCTION OF CESS TOWARDS WELFARE OF BUILDING
& CONSTRUCTION WORKERS
As per the construction workers welfare Cess Act 1996, a cess of 1%
of contract value towards the welfare of construction workers will be
deducted from the monthly payments.
12.0 REGISTRATION WITH E.S.I.C.
The contractor to get registered with E.S.I.C. under Contract Labour
Act, within 15 days from the date of work order. In absence of getting
registration from E.S.I.C. and not furnishing the license, 1% of contract
sum shall be recovered from monthly and final payments in order to
pay the demand raised by E.S.I.C.
13.0 LOCATION
The right to change the location and site of work is reserved with
Employer. In this regard tenderer is not entitled to claim for such
change in site / location.
14.0 INDEMNITY BOND
The contractor shall require to execute an Indemnity Bond for
satisfactory performance of the entire project on Stamp paper of
appropriate value in the format approved by the CIDCO Limited. This
Indemnity Bond shall remain in force for a period mentioned in
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.31 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Annexure “A” as defect liability period after certified date of
completion of the project.
15.0 WASHOUT AND SINKAGE
No extra and/or compensation is payable separately due to tidal
effect, washout, submergence and sinkage. The Contractor’s quoted
percentage should be inclusive of all such factors.
16.0 PROVISION OF E.P.F. ACT, 1952
The Contractor shall be liable to pay the due date his contribution,
employee’s contribution and other administrative charges as per
provisions of the above act as amended for time to time, in respect of
all staff and labour employed by him for the execution of the contract.
17.0 SALES TAX REGISTRATION
CIDCO is registered with sales tax authorities and has certificate
No.MAH/19/4009, Dated 23/03/1987 under the Central Sales Act.
1986 and registration certificate No.N./19N/10460, Dated 23/03/1987,
under the Mumbai Sales Act, 1959.
17.1 All the contractors who are going to quote shall furnish their Sales Tax
Registration Number.
18.0 PROVISIONS OF CONTRACT LABOUR (REGULATIONS
AND ABOLITION) ACT, 1970.
a) The contractor shall comply with the provisions of the Contract
Labour (Regulations and Abolitions) Act, 1970 and the Contract
Labour (Regulations and Abolitions) Rules, 1971 as modified from
time to time, whichever applicable and shall indemnify the CIDCO
from and against any claims under the aforesaid Act and the Rules.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.32 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
b) The contractor shall obtain a valid license under the aforesaid Act
as modified from time to time before the commencement of the
work and continue to have a valid license until the completion of
the works. Any failure to fulfill this requirement shall attract the
penal provisions of the contract arising out of the resultant non-
execution of the work.
c) The contractor shall pay to labour employed by him directly or
through sub-contractors the wages as per provisions of the
aforesaid Act and the Rules wherever applicable. The Contractor
shall, notwithstanding the provisions of the contract of the contrary,
cause to be paid the wages to labour indirectly engaged on the work
including any engaged by his sub-contractors in connection with
the said work, as if the labour had been immediately employed by
him.
d) In respect of all labour directly or indirectly employed in the work
for performance of the Contractor’s part of the contract, the
Contractor shall comply with or cause to be complied with
provisions of the aforesaid Act and the rules wherever applicable.
e) Any violation of prevailing labour laws will make Contractor liable
for penal action as per the recommendation of labour Department.
19.0 PROVISION OF MINES ACT
The Contractor shall observe all the provision of the Mines Act, 1952
or any statutory modifications on re-enactment thereof for the time
being in force and any rules and regulations made there under in
respect of all the persons directly or through petty contractors or sub-
contractors employed by him under this contract and shall indemnify
the CIDCO from and against any claim under the Mines Act, or the
rules regulations framed thereunder, by or on behalf of any persons
employed by him or otherwise.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.33 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
20.0 EXISTING SERVICE LINE–PRECAUTIONS TO BE TAKEN
The contractor shall take due precautions not to damage any service
line, such as water supply, electric, telephone etc. during execution of
the work. In case damage occurs due to negligence on part of the
contractor, the same shall be restored to its original conditions by the
contractor at his cost. If the contractor fails to do so, CIDCO will
carryout the work at his risk and cost.
21.0 The work contract tax will be deducted @ 2% for all registered dealers
and 4% in case contractor is not registered under the MVAT Act, 2002
(or as applicable from time to time by the Govt.) from the monthly and
final payments of the agency.
22.0 Contractor will be required to fix a Name Board displaying the name
of work, the name of agency, the name of client, cost of project and
time limit etc. at the locations approved by the Engineer at his own
cost.
23.0 VARIATION LIMIT
For purpose of this contract, the variations or deviations in carrying out
the work shall not exceed 15 percent of the contract sum. The contract
deviation/variation in quantity of individual items shall not be taken as
deviation or variation. The difference between total value of work
done and contract sum as defined above will be considered for
deviation/variation. The contract rate or rates derived in accordance
with provisions in contract shall apply for all new items, extra items
and excess quantities of existing items so long as the cumulative cost
variations are within stipulated percentage of contract sum.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.34 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
24.0 Chief Engineer & General Manager (Tech.) is re-designated as Chief
Engineer (South). Therefore, in General Conditions of Contract,
wherever Chief Engineer & General Manager (Tech.) is mentioned
please read as Chief Engineer (South).
25.0 TRANSPORTATION
The contractor will provide Air Conditioned Hardtop Vehicles viz.
Xylo / Innova / Scorpio in good condition along with driver and the
same will be kept at the disposal of the Engineer for the use by
CIDCO Engineers during the contract period as stipulated in
Annexure “A” including extension granted, if any. This vehicle will
be used for CIDCO works under the directives of the Engineer. The
running of vehicle per month will be 3,000 km. The contractor will
bear all expenses, connected with the operation and the maintenance
of this vehicle, including driver’s wages, overtime and other benefits,
cost of the fuel, lubricant, repairs and maintenance, third party
insurance, any other related expenses etc. to the satisfaction of the
Engineer. The vehicle record will be maintained in the form of log-
book at site. The vehicle shall be replaced with a new vehicle during
breakdown time, failing which the Employer will hire the vehicle at
the risk and cost of the contractor.
__________________ ___________________ Signature of Tenderer Chief Engineer (South)
Date : Date :
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.35 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
PROFORMA OF CONTRACT AGREEMENT (On Stamp Paper of Appropriate Value)
AGREEMENT FOR THE WORK OF “______________________________
_______________________________ (Name of Work) Article of Agreement made
at _____________ (Place) on ________ (Day) of __________ (Month) of Two
Thousand _____ (Year) between City and Industrial Development Corporation of
Maharashtra Limited, a Government of Maharashtra Undertaking, incorporated
under the Companies Act, 1956 and having its Registered Office at ‘NIRMAL’
2nd floor, Nariman Point, Mumbai 400 021 (hereinafter called the ‘EMPLOYER’)
of the one part and _______________________ (Name of Agency) whose Registered
office is situated at __________________________________________ (Address)
(hereinafter called the ‘CONTRACTOR’) of the Other Part.
WHEREAS :
The Employer being desirous of providing and executing the work mentioned,
enumerated or referred to in the Tender Notice including corrigendum to Tender
Notice, Instructions to Tenderer, General Conditions of Contract, Special
Conditions of Contract, Notes & Preambles, Schedule of Rates & Quantities,
Specifications, Drawings and other documents, constituting a Bid and acceptance
thereof, copy hereto annexed all of which are designed to form part of this
contract and are included in the term ‘CONTRACT’ wherever herein used.
AND WHEREAS :
The Employer accepted the Bid of the Contractor for the provisions and the
execution of the said work at the rates/percentage stated in the schedule of
quantities of works (hereinafter called the Schedule of Rates upon the terms and
subject to the conditions of contract).
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.36 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 AND WHEREAS :
The Contractor has deposited with the Employer the sum of ` ______________
(Rupees_________________________________________________ only) being
the Contract Deposit payable by him at the rate of 2.50% of the contract sum and
undertake to pay the balance of the Performance Security payable by him at the
rate of 2.50% of the contract sum, by allowing the Employer to deduct amount
from the bills payable to him at rate of 5% provided that the total deduction
together with contract deposit shall not exceed in the aggregate 5% of the contract
sum.
NOW THIS AGREEMENT WITNESSES AND IT IS HEREBY AGREED
BY AND BETWEEN THE PARTIES AND DECLARED AS FOLLOWS :
1. The documents which form part of the contract will be the Tender Notice,
including corrigendum to Tender Notice, Instructions to Tenderer, General
Conditions of Contract, Special Conditions of Contract, Notes & Preambles,
Schedule of Rates & Quantities, Specifications, Drawings and other
documents, constituting a Bid and acceptance thereof. It is further agreed
that the “Acceptance Letter” vide No. _________________ dated
___________ shall constitute part and parcel of the contract between the
parties.
2. In consideration of the payments to be made to the Contractor for the works
to be executed by him, the Contractor shall and will duly provide, execute
and complete the said work on or before the dates mentioned in the time
schedule of completion of work attached to the Bid documents and shall
maintain the same at his own cost for the defects liability period thereafter
and perform all such acts and things mentioned or described in the contract
or which are to be implied there from or may be reasonably necessary for
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.37 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
the completion of the said works at the times and the manner and subject to
the terms and conditions or stipulations mentioned in the contract.
3. In consideration of the due provision, execution and completion of the said
works, the Employer does hereby agree with the Contractor that the
Employer will pay to the contractor, the respective amount for the work
actually done by him at the schedule rates quoted and such other sums as
may become payable to the Contractor under the provisions of the contract,
such payment to be made at such time and in such manner as provided for in
the agreement.
4. In consideration of the due provisions, execution and completion of the said
work, the ‘Contractor’ does hereby agree to pay to the Employer the sum as
may be due to the Employer for the services if rendered by the Employer to
the contractor and such other sum or sums as may become payable to the
Employer towards loss, damage to the Employer ’s equipment, materials,
construction plant & machinery, including those hired to the contractor, if
any set forth in the said conditions of contract, such payments to be made at
such time and in such manner as provided in the contract.
5. All disputes arising out of or in any way connected with this Contract
Agreement shall be deemed to have arisen in Mumbai and only the courts in
Mumbai shall have jurisdiction to determine the same.
6. The several parts of this contract have been read me/us and fully understood
by me/us.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.38 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 IN WITNESS WHEREAS THE PARTIES HAVE EXECUTED THESE PRESENTS IN DUPLICATE THE DAY AND YEAR FIRST MENTIONED ABOVE.
SIGNED & DELIVERED FOR AND ON } BEHALF OF CITY AND INDUSTRIAL } DEVELOPMENT CORPORATION OF } MAHARASHTRA LIMITED. } Signature__________________
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.39 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
PROFORMA OF BANK GUARANTEE IN LIEU OF CONTRACT DEPOSIT
(On Stamp Paper of Appropriate Value from Nationalized Bank &
operatable in Mumbai or Navi Mumbai only)
(B.G. shall be in case of contract amount more than ` 100 lacs) To, City & Industrial Development Corporation of Maharashtra Limited, ‘Nirmal’, 2nd floor, Nariman Point, Mumbai 400 021 1) In consideration of the City and Industrial Development Corporation of
Maharashtra Limited, a Company incorporated under the Companies Act,
1956 (1 of 56) and having its registered office at Nirmal, 2nd floor,
Nariman Point, Mumbai - 400 021 (hereinafter called the ‘Employer’
which expression shall unless repugnant to the subject or context and
meaning thereof include its successors and assign) having agreed under
the terms and conditions of Contract Agreement No. _________________
dated ____________ made between M/s. _________________________
_________________ (Name of Agency) (hereinafter called the ‘Contractor’
which expression shall unless repugnant to the subject or context and
meaning thereof include his heirs, executors administrators and assigns /
its successors and assign) and the Employer in consideration with
_______________________________ (Name of Work) (hereinafter called
“the said Contract”) to accept a deed of Guarantee as herein provided for
`________________ by _____________________ (Name of the Nationalized /
Scheduled Bank, Mumbai / Navi Mumbai Branch) towards contract deposit, for the
due fulfillment by the Contractor of the terms and conditions contained in
the said contract. We, _______________________________________
(Name of Bank and detailed address), the Bank constituted and established under
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.40 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
the Banking Companies (Acquisition and Transfer of Undertakings) Act,
1979 (hereinafter referred to as the ‘said Bank’) and having our Head
Office at ______________________________________ (Address) at the
request of M/s. _______________________________ (Name of Agency) do
hereby undertake to pay to the Employer an amount not exceeding
________________ (indicate the Authority & Administrative Department) certified that
the terms and conditions of the said Contract Agreement have been fully
and properly carried out by the said Contractor(s) and accordingly
discharges this guarantee. Unless a demand or claim under this guarantee
is made on us in writing on or before ______________ (contract period + claim
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.42 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
period) we shall be discharged from all liability under this guarantee
thereafter.
6) We, _________________________________________________, further
agree with the Employer, that the Employer shall have the fullest liberty
without our consent and without affecting in any manner our obligations
hereunder to vary any of the terms and conditions of the said Agreement
or to extend the time of performance by the said Contractor(s) from time
to time or to postpone for any time any of the powers exercisable by the
Employer against the said Contractor(s) and to forbear or enforce any of
the terms and conditions relating to the said Agreement and we shall not
be relieved from our liability by reasons of any such variation, or
extension being granted the said Contractor(s) or for any forbearance act
or omission on the part of the Employer or any indulgence by the
Employer to the said Contractor(s) or by any such matter or thing
whatsoever which under the law relating to sureties would, but for this
provisions have effect of so relieving us.
7) This guarantee will not be discharged due to the change in the constitution
of the Bank or the Contractor(s) / Supplier(s).
8) This guarantee is valid till __________________ (completion date) unless a
suitable action to enforce the claim under this guarantee is made within six
months from completion date i.e. up to ________________ (date) all yours
rights under this guarantee shall be forfeited and we shall be relieved and
discharged from all liabilities there under.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.43 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 9) We, __________________________________ (Name of Bank) lastly
undertake not to revoke this guarantee during the currency except with the
previous consent of the Employer in writing.
Dated this _______ day of _________20___.
Dated this ______ day of ________ 20__
FOR & ON BEHALF OF BANK
The above guarantee is accepted For and on behalf of the Employer (Name & Designation)
Date :
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.44 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
INDENTURE BOND (On Stamp Paper of Appropriate Value)
THIS INDENTURE made on the _____ (Day) of _______ (Month), 20___ (Year)
M/s. ______________________________________ (Name of Agency) (hereinafter
called the ‘Contractor’ which expression shall, where the context so admits or
implies be deemed to include his heirs, executors, administrators, and assigns) of
the ONE PART and City and Industrial Development Corporation of
Maharashtra Limited, a Company incorporated under the Companies Act, 1956
and having its registered office at ‘Nirmal’, 2nd floor, Nariman Point, Mumbai -
400 021 (hereinafter called the ‘Employer’, which expression shall, where the
context so admits or implies be deemed to include its successor and assigns) of
the OTHER PART.
The contractor has entered into a contract dated _____________ for the work of
“____________________________________________________” (Name of Work)
on the terms and conditions set out their.
The contractor has applied to the Employer that he be allowed advances on
materials (hereinafter called the ‘said Material’) absolutely belonging to him and
brought by him to the site of the works for use in construction of such of the
works as he had undertaken to execute at stipulated rates, and of aforesaid nature.
The security of the quantities and other particulars of the materials for which the
advances are being made in the Monthly Payments, will be the sole responsibility
of the Contractor.
NOW THIS INDENTURE WITNESSTH THAT IN PURSUANCE OF THE
SAID CONTRACT and in consideration of the sum up to `________________
paid on or before the execution of these presents to the contractor by the
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.45 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 Employer and of the such further advance (if any) as may be made to him as
aforesaid, the Contractor hereby covenant and agree with the Employer and
declares as follows:
1. That the said sum so advanced by the Employer to the Contractor as
aforesaid and all or any further sum or sums advanced as aforesaid shall be
used by the contractor in or towards expediting the execution of the said
works and for no other purpose whatsoever.
2. That the said materials which have been offered to and accepted by the
Employer for advances on material, is absolutely the contractor’s own
property and free from encumbrances of any kind and the contractor shall
not make any application or receive a further advance from the Employer
on the same materials. The contractor indemnifies the Employer against
all claims to any material in respect of which an advance has been made to
him as aforesaid.
3. That the said materials and all other materials on the security of which any
further advance or advances may hereafter be made as aforesaid shall be
used by the contractor solely in the execution of the said works in
accordance with the direction of the Engineer (hereinafter called ‘the
Engineer’) and in terms of the said contract.
4. That the contractor shall make at his own cost all necessary and adequate
arrangements for the proper watch, safe custody and protection against all
risks of the said materials in the contractor’s custody and on his own
responsibility and shall at times be open to inspection by the Engineer or
any officer authorized by him. In the event of the said materials or any
part thereof being stolen, destroyed, or damaged, the contractor shall
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.46 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
forthwith replace the same with other materials of like quantity or repair
and make good the same as required by the Engineer.
5. The above said materials shall not on any account be removed from the
site except with the written permission of the Engineer or any officer
authorized by him on that behalf.
6. That the advance shall be repayable in full when or before the contractor
receives the payment from the Employer on the price payable to him for
the said works under the contract provided that if any intermediate
payment are made to the contractor on account of work done, when on the
occasion of such payment the Employer will be at liberty to make a
recovery from the Contractor’s payment, for such payment by deducting
therefrom the value of the said materials actually used in the construction
and in respect of which recovery has not been made previously. The
value for the purpose of recovery shall be at the rates at which the
advances were calculated.
7. That if the Contractor shall at any time make any default in the
performance of observance in any respect of any of their terms and
provisions of the said contract or of these presents, the total amount of the
advance or advances that may still be owing to the Employer shall be
immediately on the happening of such default be repayable by the
contractor to the Employer together with interest rate per annum as
prevailing from the date of the respective dates of such advance or
advances, to the date of repayment and with all costs, charges, damages
and expenses incurred by the Employer in or for the recovery thereof or
the enforcement of this security or otherwise be reasons of the default of
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.47 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
the contractor and the contractor hereby covenants and agrees with the
Employer to repay the same respectively to the Employer accordingly.
8. That the contractor hereby hypothecates all the said materials with the
repayment to the Employer of the said sum so advanced and any further
sum or sums, advance as aforesaid all costs, damage and expenses payable
under these presents provided always and it is hereby agreed and declared
that notwithstanding anything in the said agreement and without prejudice
to the powers contained therein shall become enforceable and the money
shall not be paid in accordance with, the Employer may at any time
thereafter adopt all or any of the following courses as Engineer may deem
fit.
(a) Seize and utilize the said materials or any part thereof in the
completion of the said works on behalf of the contractor in
accordance debiting the contractor with the value of the work done
as if he had carried it out in accordance with the said contract and
the rates thereby provided. If the balance is against the contractor,
he is to pay same to the Employer on demand.
(b) Remove and sell by public auction the seized materials or any part
thereof and out of the money arising from the sale retain all the sum
aforesaid repayable or payable to the Employer under these
presents and pay over the surplus (if any) to the Contractor.
(c) Deduct all or any part of the money owning out of Performance
Security of any sum due to the contractor under the said contract.
9. That except in the event of such default on the part of the contractor as
aforesaid, interest on the said advance shall not be payable.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.48 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 10. The Contractor shall execute a promissory note for a sum of
`________________ only in favour of the Employer to provide a
collateral security for the repayment of the advance made to the contractor.
IN WITNESS WHEREOF THE _________________________________ and
City & Industrial Development Corporation of Maharashtra Limited have hereby
put their respective hands the day and year first above written.
SIGNED SEALED AND DELIVERED ) BY THE SAID CONTRACTOR IN ) THE PRESENCE OF )
) SIGNATURE OF CONTRACTOR
WITNESSES :
1.
2.
SIGNED SEALED AND DELIVERED ) BY AND FOR AND ON BEHALF OF ) CITY & INDUSTRIAL DEVELOPMENT ) CORPORATION OF MAHARASHTRA ) LIMITED ) IN THE PRESENCE OF ) ENGINEER WITNESSES :
1.
2.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.49 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
PROMISSORY NOTE (On Stamp Paper of Appropriate Value)
In terms of para 10 of indenture bond we agree to pay a sum of
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.50 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
INDEMNITY BOND (On Stamp Paper of Appropriate Value)
In consideration of City and Industrial Development Corporation of
Maharashtra Limited, a Company incorporated under the Companies Act, 1956
and having its Registered Office at “Nirmal”, 2nd floor, Nariman Point, Mumbai -
400 021 (hereinafter referred to as the ‘Employer’, which expression shall unless
it be repugnant to the context or meaning thereof includes it’s successors and
assigns) having awarded the contract for the work of “______________________
_________________” (Name of Work) at an awarded cost of ` ________________
to M/s._______________________________________________ (Name of Agency)
a Partnership / Proprietorship / Private Limited / Public Limited firm carrying in
such name and style the business of construction (hereinafter referred to as the
‘Contractor’ which expression shall, unless it be repugnant to the context or
meaning thereof, includes its Proprietor/Partners/Directors for the time being or
its surviving partner or his heirs and executors).
We, M/s. _____________________________________, being the
Contractor do hereby agree and undertake and indemnify and save harmless the
Employer in consequence of the manufacturing defect, latent manufacturing
defect and construction defect found in the constructed works at any time in a
period of Five (5) years commencing with the certified completion date certificate
by the Employer to the Contractors in accordance with and subject to the
provisions of the said contract.
It is hereby agreed and declared that the Chief Engineer (South) of the
Employer or any officer acting on his behalf shall be the Competent Authority to
decide upon the question as to the defects in the construction of works and the
remedy to be applied by the Contractor for their rectification at his cost and his
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.51 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 decision shall be final, conclusive and binding upon both the Employer and the
Contractor, provided that the Chief Engineer (South) shall so decide after giving
an opportunity to the Contractor to represent his case.
We hereby agree and undertake irrevocably and unconditionally to carry
out duly each and every decision, order, direction or instruction as may be issued
by the said Chief Engineer (South) or as the case may be, the Officer of the
Employer in this behalf and to rectify properly and promptly the defects found by
him.
For & On behalf of M/s.______________ _________________________________
Date : (Seal) Notary, Maharashtra State
Before Me
Notary, Maharashtra State Notary and Registered at Serial Number Accepted by : ____________________________
(For & On behalf of CIDCO Ltd.)
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.52 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
PROFORMA OF BANK GUARANTEE IN LIEU OF EMD
(Valid for Min. period of 6 months) (On Stamp Paper of Appropriate Value)
To:
The City and Industrial Development Corporation of Maharashtra Limited, ‘Nirmal’, 2nd floor, Nariman Point, Mumbai - 400 021.
1. In consideration of City & Industrial Development Corporation of
Maharashtra Limited, a Company incorporated under the Companies Act,
1956 (I of 56) and having its registered office at ‘Nirmal’, 2nd floor,
Nariman Point, Mumbai 400 021 (hereinafter called the “Employer”
which expression shall unless repugnant to the subject and context on
meaning thereof include its successors and assigns) having invited tenders
in connection with Contract No. __________________________ dated
__________ for the execution of Civil work of _____________________
and in further consideration of the Employer having consented to permit
M/s.____________________ (Name of Agency) (hereinafter called “the
Tenderer”, which expressions shall unless be repugnant on the context and
meaning thereof include his heir, executors and administrators and
assign/assigns) to deposit the Earnest Money Deposit of ` ____________
(Rupees __________________) in the form of an unconditional and
irrevocable Bank Guarantee furnished by _________________ (Name of
Nationalized / Scheduled Bank, Mumbai / Navi Mumbai branch) in accordance with the
conditions of the said notice inviting the tenders.
2. We the Bank of ___________________, (Name of Bank) constituted and
established under the Banking companies Act, Acquisition and Transfer
Undertaking Act 1970 - a company incorporated under Companies Act
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.53 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
1956 and Scheduled Bank, within the meaning of Reserve Bank Act 1934,
Clause (e) of Section 2 having our Head office at ____________________
_____________________ (Address) do and hereby guarantee, undertake and
agree to pay the Employer a sum of ` _________________ (Rupees
_____________________________________________) in the event of
the tenderer revoking his tender or; offer or vary or modify any conditions
stipulated in, more particularly specified in para 3.4 of the Notice of
Tender & Instructions to the Tenderers; or further, in the event of the
tenderer failing or omitting to deposit the Contract Deposit in accordance
with Condition No.10.1.1 of the General Conditions of the Contract.
3. We, Bank of ___________________________________ further agree
that the Employer shall be sole judge of and as to whether the contractor
has committed any breach or breaches of any of the terms and conditions
of the said contract and the extent of loss, damages, costs, charges and
expenses caused to or suffered by or that may be caused to or suffered by
the Employer on account thereof and the decision of the Employer that the
contractor has committed such breach or breaches and as to the amount or
amounts of loss, damage, cost, charges and expenses caused to or suffered
by or that may be caused to or suffered by the Employer from time to time
shall be final and binding on us.
4. We, the said Bank, further agree that the Guarantee herein contained shall
remain in full force and effect during the period that would be taken for
the performance of the said contract and till all the dues of the Employer
under the said Contract or by virtue of any of the terms and conditions
governing the said contract have been fully paid and it’s claims satisfied or
discharged and till Chief Engineer (South) certifies that the terms and
conditions of the said contract have been fully and properly carried out by
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.54 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
the contractor and accordingly discharges this guarantee subject however
that the Employer shall have no claim under this Guarantee after
completion of the work or from the date of cancellation of the said
contract, as the case may be, unless a notice of the claim under this
Guarantee has been served on the Bank before the expiry of the said
period of six months from the date of receipt of tender i.e. in which case
the same shall be enforceable against the Bank not withstanding the fact
that the same is enforced after the expiry of the said period of six months
from the date of receipt of tender i.e._____________.
5. The Employer shall have the fullest liberty without affecting in any way
the liability of the Bank under this Guarantee of Indemnity from time to
time vary any of the terms and conditions of the said contract or to extend
time of performance by the Contractor or to postpone for any time and
from time to time any of the power exercisable by its against the
contractor and either to enforce or forbear from enforcing any of the terms
and conditions governing the said contract or securities available to the
Employer and the said bank shall not be released from its liability under
these presents by an exercise by the Employer of the liberty with reference
to the matters aforesaid or by reason of time being given to the Contractor
or any other forbearance, act or omission on the part of the Employer or
any indulgence by the Employer to the Contractor or of any other matter
or things whatsoever which under the law relating to surities would but for
this provision have the effect of so releasing the Bank from its such
liability.
6. It shall not be necessary for the Employer to proceed against the contractor
before proceeding against the Bank and the Guarantee herein contained
shall be enforceable against the bank notwithstanding any security which
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.55 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
the Employer may have obtained or obtain from the Contractor shall at the
time when proceedings are taken against the bank hereunder be
outstanding or unrealized.
7. We, the said Bank lastly undertake not to revoke this Guarantee during the
currency except with the previous consent of the Employer in writing and
agree that any change in the constitution of the Contractor or the said Bank
shall not discharge our liability hereunder.
8. Our liability under this bond is restricted to ` _______________ and it
will remain till the __________________, unless an action to enforce the
claim under the guarantee is filed against us before that date all your rights
under the said Guarantee shall be forfeited and we shall be relieved and
discharged for all liability thereunder.
Dated this _____ the day of_________ 20__.
For and on behalf of the Bank
Date :
The above guarantee is accepted by
For & on behalf of the Employer
(Name and Designation)
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.56 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
PROFORMA FOR AFFIDAVIT FOR
PRESERVATION OF MANGROVES (On Stamp Paper of Appropriate Value)
1. On behalf of _____________________________ (Name of Agency) having its
office situated at _________________________________ (Address of Agency)
I, Shri/Smt. ______________________ (Name of person signing affidavit),
authorized signatory, hereby state that we are aware of the directives of
Maharashtra Coastal Zone Management Authority (MCZMA) under
section 5 of the Environmental (Protection) Act, 1986 read with provision
of CRZ-1991 (as amended from time to time). The Hon’ble High Court in
PIL No.3246 of 2005 has issued directions for Preservation of Mangroves.
I am aware of these directions. Further, I undertake to comply these
directions in its letter and spirit while executing the work to stop any
destruction or denudation of mangroves and take necessary care for their
preservation applicable in and around coastal areas of Navi Mumbai in
Thane and Raigad district. We are also aware that in case of failure by us
to comply with the above directives, we may be prosecuted by MCZMA
under Section 15 of the Environmental (Protection) Act, 1986.
2. We further state that we will strictly follow the above directives, (as
amended from time to time), while carrying out the work of
_______________________ (Name of Work) awarded by CIDCO vide
C.A.No. ___________________.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.57 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 3. We further indemnify and keep indemnified CIDCO, its officers from all
liabilities, consequences arising in future due to the violation of any of the
2.1 Engineer’s Duties & Authority 6 2.2 Engineer’s Representative 7 2.3 Engineer’s Authority to Delegate 7 2.4 Appointment of Assistants 7 2.5 Instructions in Writing 8 2.6 Engineer to Act Impartially 8
Assignment & Subcontracting
3.1 Assignment of contract 9 4.1 Subcontracting 9 4.2 Assignment of Subcontractor’s Obligations 9
Contract Documents
5.1 Language(s) & Law 10 5.2 Priority of Contract Documents 10 6.1 Custody & Supply of Drawings and Documents 10 6.2 One copy of Drawings to be kept on Site 11 6.3 Disruption of Progress 11 6.4 Delays and cost of delay of drawings 11 6.5 Failure by Contractor to submit Drawings 11 7.1 Supplementary Drawings & Instructions 12 7.2 Permanent Works Designed by Contractor 12 7.3 Responsibility Unaffected by Approval 12
General Obligations
8.1 Contractor’s General Responsibilities 12 8.2 Site Operations and Methods of Construction 13 8.3 Contractor's Representative 13 8.4 Temporary office for the Engineer 14 8.5 Changes in Constitution 14 9.1 Contract Agreement 15 10.1 Performance Security 15 10.2 Period of Validity of Performance Security 16 10.3 Claims under Performance Security 16 11.1 Inspection of site 16 12.1 Sufficiency of Tender 17 12.2 Not foreseeable physical obstructions or conditions 18
13.1 Work to be in Accordance with Contract
18
C.A. No.: Sl. Page No.
Clause No. CONTENTS Page No.
14.1 Programme to be submitted 18 14.2 Revised Programme 19 14.3 Cash flow Estimate to be submitted 19 14.4 Contractor not relieved of Duties or Responsibilities 19 14.5 Early Warning 19 15.1 Contractor’s Superintendence 19 15.2 Use of Corporation’s land 20 15.3 Supply of Water and Power 21 16.1 Contractor’s Employees 21 16.2 Engineer at Liberty to Object 21 17.1 Setting Out 21 18.1 Boreholes & Exploratory Excavation 22 19.1 Safety, Security & Protection of the Environment 22 19.2 Employer’s Responsibilities 23 20.1 Care of Works 23 20.2 Responsibility to Rectify Loss or Damage 24
20.3 Loss or Damage due to Employer’s Risks 24 20.4 Employer’s Risks 25 21.1 Insurance of Works & Contractor’s Equipment 25
21.2 Scope of Cover 26 21.3 Responsibility of Amounts not Recovered 26 21.4 Exclusions 26 22.1 Damage to Persons & Property 27 22.2 Exceptions 27 22.3 Indemnity by Employer 28 23.1 Third Party Insurance (including Employer’s Property) 28 23.2 Minimum amount of Insurance 28 23.3 Cross Liabilities 28 23.4 Insurance Policy 28 24.1 Accident or Injury to Workmen 28 24.2 Insurance Against Accident to Workmen 29 25.1 Evidence and Terms of Insurance 29 25.2 Adequacy of Insurances 30 25.3 Remedy on Contractor’s Failure to Insure 30 25.4 Compliance with Policy Conditions 30 26.1 Compliance with Statutes, Regulations 30 27.1 Fossils 31 28.1 Patent Rights 31 28.2 Royalties 31 29.1 Interference with Traffic & Adjoining Properties 32
30.1 Avoidance of damage to Roads 32 30.2 Transport of Contractor's equipment or temporary works 32 30.3 Transport of materials or plants 33 30.4 Waterborne Traffic 33 31.1 Opportunities for Other Contractors 34 31.2 Facilities for other Contractor 34 32.1 Contractor to Keep Site Clear 34 33.1 Clearance of Site on Completion
34
C.A. No.: Sl. Page No.
Clause No. CONTENTS Page No.
Labour 34.1 Engagement of Staff & Labour 35 34.2 Rates of Wages and conditions of Labour 35 34.3 Housing for Labour 36 34.4 Health and Safety 36 34.5 Measures against insect and Pest Nuisance 36 34.6 Disorderly Conduct 37 35.1 Returns of Labour & Contractor’s Equipment 37 35.2 Record of Safety and Health 37 35.3 Reporting of Accidents 37 35.4 The Apprentices Act 1961 37
Materials, Plant and Workmanship 36.1 Quality of Materials, Plant & Workmanship 38
36.2 Cost of Samples 38 36.3 Cost of Test 38 36.4 Cost of Test not Provided for 38 36.5 Engineer’s Determination where Tests not provided for 39
36.6 Use of B.I.S. specifications 39 37.1 Inspection of Operations 39 37.2 Inspection & Testing 39 37.3 Dates for Inspection & Testing 40 37.4 Rejection 40 37.5 Independent Inspection 40 38.1 Examination of work before Covering up 40 38.2 Uncovering & Making Openings 41 38.3 Materials brought to Site 41 38.4 Materials obtained from excavation 41 38.5 Use of Explosives 41 39.1 Removal of Improper Work, Materials or Plant 42 39.2 Default of Contractor in Compliance 42
Suspension and Foreclosure 40.1 Suspension of Work 42 40.4 Foreclosure of Contract in full or in part 44
Commencement and Delays 41.1 Commencement of Works 45
42.1 Possession of Site 45 42.2 Failure to Give Possession 46 42.3 Rights of Way & Facilities 46 43.1 Time for Completion 46 44.1 Extension of Time for Completion 47 44.2 Contractor to Provide Notification & Detailed Particulars 47 44.3 Interim Determination of Extension 47 45.1 Restriction on Working Hours 48 46.1 Rate of Progress 48 47.1 Compensation for Delay 49 47.2 Reduction of Compensation for Delay 50 48.1 Taking Over Certificate 51 48.2 Taking Over of Sections or Parts 51 48.3 Substantial Completion of Parts 52 48.4 Surfaces Requiring Reinstatement
52
C.A. No.: Sl. Page No.
Clause No. CONTENTS Page No.
Defects Liability
49.1 Defects Liability Period 52 49.2 Completion of Outstanding Work & Remedying Defects 52 49.3 Cost of Remedying Defects 53 49.4 Contractor’s Failure to Carry Out Instructions 53 50.1 Contractor to Search 54
Alterations, Additions and Omissions
51.1 Variations 54 51.2 Instructions for Variations 55 52.1 Valuation of Variations 55 52.2 Variations exceeding 15 percent 56
Procedure for Claims
53.1 Notice of Claims 57 53.2 Contemporary Records 57 53.3 Substantiation of Claims 57 53.4 Failure to Comply 57 53.5 Payment of Claims 58
Contractor’s Equipment, Temporary Works & Materials
54.1 Contractor’s Equipment, Temporary Works & Materials, Exclusive Use for the Works
58
54.2 Employer not Liable for Damage 58 54.3 Customs Clearance 59 54.4 Condition of Hire of Contractor’s Equipment 59 54.5 Cost for the Purpose of Clause 63 59 54.6 Incorporation of Clause in Subcontracts 59 54.7 Approval of Materials not Implied 60
Measurements
55.1 Quantities 60 56.1 Works to be Measured 60 57.1 Method of Measurement 61
Provisional Sums
58.1 Definition of “Provisional Sum” 61 58.2 Use of Provisional Sums 61 58.3 Production of Vouchers 62
Nominated Subcontractors
59.1 Definition of “Nominated Subcontractor” 62 59.2 Nominated Subcontractors; Objection to Nomination 62 59.3 Design Requirements to be Expressly Stated 63 59.4 Payments to Nominated Subcontractors 63 59.5 Certification of Payments to Nominated Subcontractors 64
Certificates and Payments
60.1 Monthly Statements 64 60.2 Monthly Payment
65
C.A. No.: Sl. Page No.
Clause No. CONTENTS Page No.
60.3 Refund of Performance Security 65 60.4 Correction of Certificates 66 60.5 Advance against Material 66 60.6 Final Statement 67 60.7 Discharge 67 60.8 Final Payment Certificates 67 60.9 Cessation of Employer’s Liability 68
60.10 Time for Payment 68 60.11 No interest for delayed payments due to disputes etc. 68 60.12 Recovery of dues from the Contractor 68 60.13 Crèche facility for the children of Construction labour 69 61.1 Approval only by Defects Liability Certificates 69 62.1 Defects Liability Certificate 70 62.2 Unfulfilled Obligations 70
Remedies
63.1 Default of Contractor 70 63.2 Valuation at Date of Termination 72 63.3 Payment after Termination 72 63.4 Assignment of Benefit of Agreement 72 64.1 Urgent Remedial Work 72
Special Risks
65.1 No Liability for Special Risks 73 65.2 Special Risks 73 65.3 Damage to Works by Special Risks 74 65.4 Projectile, Missile 74 65.5 Increased Costs arising from Special Risks 74 65.6 Outbreak of War 75 65.7 Removal of Contractor’s Equipment on Termination 75 65.8 Payment if Contract Terminated 75
Release from Performance
66.1 Payment in Event of Release from Performance 76
Settlement of Disputes
67.1 Settlement of Disputes
77
Notices
68.1 Notice to Contractor 81 68.2 Notice to Employer & Engineer 81 68.3 Change of Address 81
Default of Employer
69.1 Default of Employer 81 69.2 Removal of Contractor’s Equipment 82 69.3 Payment on Termination 82 69.4 Contractor’s Entitlement to Suspend Work 82 69.5 Resumption of Work
82
C.A. No.: Sl. Page No.C.A. No.: Sl. Page No.
Clause No. CONTENTS Page No.
Changes in Cost and Legislation
70.1 Price Variation Clause 83
70.2 Reimbursement of taxes and duties 91
71.1 Tax Registrations 91
ANNEXURES :
A Annexure 'A' 93 B Safety provisions 95 C Format for Taking Over Certificate 100
APPENDICES:
Appendix-I to Sub-Clause No. 67.4 102 Appendix-II to Sub-Clause No. 67.4 108
C.A. No.: Sl. Page No.
1
GENERAL CONDITIONS
Definitions and Interpretation
Definitions
1.1 In the Contract (as hereinafter defined) the following words and expressions shall
have the meanings hereby assigned to them, except where the context otherwise
requires:
(a) (i) “Employer” means the CIDCO Ltd. a Company incorporated
under the Companies Act, 1956 (The Corporation).
(ii) “Contractor” means the person whose tender has been accepted
by the Employer and the legal successors in title to such person,
but not any assignee of such person appointed without consent of
Employer.
(iii) “Subcontractor” means the person named in the Contract as a
Subcontractor for a part of the Works or any person to whom a
part of the Works has been subcontracted with the consent of the
Engineer and the legal successors in title to such person, but not
any assignee of any such person appointed without consent of
Employer.
(iv) “Engineer” means the person nominated by the Employer to act
as Engineer for the purposes of the Contract and named as such
in Annexure “A” of these Conditions.
(v) “Engineer’s Representative” means a person appointed from
time to time by the Engineer under Sub-Clause 2.2
(vi) The 'Managing Director' means the Managing Director of the
CIDCO Ltd., for the time being holding that office and also his
successors and shall include any officer authorised by him.
(vii) The 'Joint Managing Director' means the Joint Managing
Director of the CIDCO Ltd., for the time being holding that office
C.A. No.: Sl. Page No.
2
and also his successors and shall include any officer authorised by
him.
(viii) The "Chief Engineer" means Chief Engineer & General Manager
(Technical), the officer so designated in the Corporation or any
other officer who is for the time being entrusted with his functions,
duties and powers by the Managing Director and notified to the
Contractor.
(ix) The "Additional Chief Engineer" means the officer, so
designated in the Corporation or any other officer who is for the
time being entrusted with his functions, duties and powers by the
Managing Director and notified to the Contractor.
(x) The "Chief Accounts Officer" means the officer, so designated in
the Corporation or any other officer who is for the time being
entrusted with his functions, duties and powers by the Managing
Director and notified to the Contractor.
(xi) The 'Superintending Engineer ' means the officer, so designated
in the Corporation or any other officer who is for the time being
entrusted with his functions, duties and powers by the Managing
Director and notified to the Contractor.
(xii) The 'Executive Engineer ' means the officer, so designated in the
Corporation or any other officer who is for the time being entrusted
with his functions, duties and powers by the Managing Director
and notified to the Contractor.
(xiii) The "Inspecting Officers" shall mean the Chief Engineer,
Additional Chief Engineer, Superintending Engineer or any other
officer or person for the time being exercising their functions,
duties and powers.
(b) (i) “Contract’ means these Conditions, the Specifications, the
Drawings, the Bill of Quantities, the Tender, the Letter of
Acceptance, the Work order, the Contract Agreement (if
completed) and such further documents as may be expressly
incorporated in the Letter of Acceptance or Contract Agreement (if
completed).
C.A. No.: Sl. Page No.
3
(ii) “Specification” means the specification of the Works included in
the Contract and any modification thereof or addition thereto made
under Clause 51 or submitted by the Contractor and approved by
the Engineer.
(iii) “Drawings” means all drawings, calculations and technical
information of a like nature provided by the Engineer to the
Contractor under the Contract and all drawings, calculations,
samples, patterns, models, operation and maintenance manuals
and other technical information of a like nature submitted by the
Contractor and approved by the Engineer.
(iv) “Bill of Quantities” means the priced and completed Bill of
quantities forming part of the Tender.
(v) "Tender" means the Contractor's priced offer to the Employer for the
execution and completion of the Works and the remedying of any
defects therein in accordance with the provisions of the Contract,
as accepted by the Letter of Acceptance.
(vi) “Letter of Acceptance” means the formal acceptance by the
Employer of the Tender.
(vii) “Contract Agreement” means the contract agreement (if any)
referred to in Sub-Clause 9.1.
(viii) “Work Order” means the written communication of the Engineer
ordering starting of the Work and specifying Commencement date
and date of completion.
(c) (i) “Commencement Date” means the date upon which the
Contractor receives the notice to commence, issued by the
Engineer pursuant to clause 41.
(ii) “Time for Completion” means the time for completing the
execution of and passing the Test on Completion of the Works or
any Section or part thereof as stated in the Contract (or as
extended under Clause 44) calculated from the Commencement
Date.
(d) (i) “Tests on Completion” means the tests specified in the contract
or otherwise agreed by the Engineer and the Contractor which are
C.A. No.: Sl. Page No.
4
to be made by the Contractor before the Works or any section or
part thereof are taken over by the Employer.
(ii) “Taking over Certificate” means a certificate issued pursuant to
clause 48.
(e) (i) “Contract Price” means the sum stated in the Letter of
Acceptance as payable to the Contractor for the execution and
completion of the Works and the remedying of any defects therein
in accordance with the provisions of the Contract.
(ii) “Performance Security” means the aggregate of all monies
retained by the Employer pursuant to Sub-Clause 10.1.
(iii) “Interim Payment Certificate” means the certificate of payment
issued by the Engineer other than the Final Payment Certificate.
(iv) “Final Payment Certificate” means the certificate of payment
issued by the Engineer pursuant to Sub-Clause 60.8.
(f) (i) “Works ” means the Permanent Works and the Temporary Works
or either of them as appropriate.
(ii) “Permanent Works” means the permanent Works to be executed
(including Plant) in accordance with the Contract.
(iii) “Temporary Works” means all temporary Works of every kind
(other than Contractor’s Equipment) required in or about the
execution and completion of the Works and the remedying of any
defects therein.
(iv) “Plant” means machinery, apparatus and the like intended to form
or forming part of the Permanent Works.
(v) “Contractor’s Equipment” means all appliances and things of
whatsoever nature (other than Temporary Works ) required for the
execution and completion of the Works and the remedying of any
defects therein, but does not include Plant, materials or other
things intended to form or forming part of the Permanent Works .
(vi) “Section” means a part of the Works specifically identified in the
Contract as a Section.
C.A. No.: Sl. Page No.
5
(vii) “Site” means the places provided by the Employer where the
Works are to be executed and any other places as may be
specifically designated in the Contract as forming part of the Site.
(g) (i) “Cost” means all expenditure properly incurred or to be incurred,
whether on or off the Site, including overhead and other charges
properly allocable thereto but does not include any allowance for
profit.
(ii) “Day” means calendar day.
(iii) “Foreign currency” means a currency of a country other than that
in which the Works are to be located.
(iv) “Writing” means any hand-written, type-written, or printed
communication, including telex, cable and facsimile transmission.
Headings and Marginal Notes
1.2 The headings and marginal notes in these Conditions shall not be deemed part
thereof or be taken into consideration in the interpretation or construction thereof
or of the Contract.
Interpretation
1.3 Words importing persons or parties shall include firms and corporations and any
organization having legal capacity.
Singular and Plural
1.4 Words importing the singular only also include the plural and vice versa where
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.177 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Environmental Cess or any other duties on materials obtained for the
works and any duties in respect of patent rights. Cess as per BPMC
Act and its amendments.
e) Supervision : Competent supervision of the work.
f) Labour : Reasonable terms and conditions of employment, liability to
pay compensation, wages as per statutory enactments, temporary
accommodation, sanitation etc. compliance with Contract Labour Act.
g) Water: Provision of all water required including temporary plumbing
and connection.
h) Temporary Workshops, Stores, Office, Labour Camps etc. : Provisions
of such structures required for efficient execution of the works and
removing and cleaning up site on completion of works.
i) Precaution against risk : Precautions to prevent loss or damage from all
or any risk, insurance of sheds or any temporary accommodation
provided by CIDCO, watching & lighting, provisions pertaining to the
General Conditions of Contract.
j) Notices, Fees etc. : Compliance with statutory provisions of
regulations and/or bye-laws of any local authority including NMMC
and/or any public service company or authority affected by the works.
k) Setting the works including all apparatus required.
l) Site Drainage: Removal of all water that may accumulate due to
springs, sub soil water, flood/tides and any other causes on the site
during the progress of the work.
m) Execution of work in workmanlike manner, facilities for inspection
etc.
n) Rectification of Bad Work : Rectification and/or removal and
reconstruction of any work which (as decided by the Engineer) has
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.178 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
been executed with unsound or imperfect materials or unskilled
workmanship or of a quality inferior to that contracted for, whether
during construction or reconstruction prior to the expiry of the Defect
Liability period.
o) Responsibility for damage and loss of all construction materials etc., at
the site until handing over to CIDCO.
p) Removal of Rubbish: Removal of rubbish and debris and cleaning of
any dirt before handing over of all completed works.
q) Clearing site and works : Removal by the Contractor off the site, of
any tools, plants and materials and removal of splashes of asphalt
leaving the whole site neat and tidy.
r) Completion: Completing the work to the satisfaction of the Engineer
on or before the date of completion.
s) Difficult position: Accessibility or otherwise to site, easy or difficult
positions in works.
t) Errors: Rectification of all errors to the satisfaction of Engineer.
u) Curved work etc. : Work of any quantity, size or shape whether level,
inclined, curved, battered etc.
v) Maker’s Instructions: Compliance with maker’s instructions in the
case of proprietary articles, factory made goods of precast items.
w) Waste: All waste, laps, seams, joints (rough or fair cuttings)
straight/raking, circular and making good.
x) Artificial Light: To include all lighting/kerosene or electric power as
the case may be when need arises for use of lighting while carrying out
works.
y) Construction of approaches to the site of work. Making arrangement
for proper access to works in the form of stairs, ladders, lifts, etc. as
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.179 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
ordered by the Engineer for proper supervision, testing and or
inspection of works.
z) All the expenses required towards testing of materials and/or works.
All expenses towards contractor’s all risk insurance policy
(B) BRIEF NOTES ON DRAFTING OF SCHEDULE OF RATES AND
QUANTITIES
2.0 The tender has been drafted on the basis of pre-priced schedule of rates and
quantities for different types of items.
2.1 All the tender items are priced as per CIDCO Schedule of rates for the year
2010-11 and PWD Schedule of rates for the year 2010-11 and MJP Schedule
of rates for the year 2010-11.
2.2 The Contractors are requested to work out their own rates based on the
detailed description of Schedule ‘A’ items, the specifications and drawings
and finally arrive at the cost of the work in the appropriate place. The
contractor shall insert percentage cost over CIDCO’s cost to arrive at the
contract value for the work.
(C) TIME OF COMPLETION
3.0 The period of completion of works enumerated under Schedule ‘A’ shall be
as mentioned in Annexure ‘A’ from the date of placing the work order or date
of handing over the site whichever is earlier.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.180 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 (D) DEDUCTIONS OF INCOME TAX
4.0 Deduction of Income Tax shall be at the rates stipulated by Income Tax
authorities and the amounts shall be deducted from monthly and final
statement submitted by contractor.
(E) DEDUCTION OF CONTRACT SALES TAX / TURNOVER TAX /
WORKS CONTRACT TAX
5.0 The contractors are required to produce their registration for contract sales
tax/turnover tax/works contract tax to the department before releasing the 1st
monthly payment for the work executed by them, failing which, no payment
shall be released.
__________________ __________________ Signature of Tenderer Chief Engineer (South)
Date : Date :
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.181 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 Name of Work : Construction of approach road from Pandav-Taloja junction
to HSR plot, in Sector - 22 Kharghar, Navi Mumbai.
SCHEDULE “A” BILL OF QUANTITIES
Part – I : Construction of Approach Road
I. NO. DESCRIPTION QTY. RATE PER AMOUNT 1. Excavation for roadways in
all types of soil, soft murum, hard murum, hard murum with boulders, in all conditions and nature, including clearing and stripping of the area, removal of vegetation, shrubs, taking spot levels, excavating to required depth, line, level and slope, leveling and dressing and consolidating the excavated surface, dewatering by all means upto any extent of water accumulated from any source, sorting out and stacking serviceable and unserviceable materials etc. complete including conveying the excavated material with all lifts and upto a lead of 50 mtr & its spreading or stacking as directed, etc. complete. Note : All payments towards the royalty, fees, taxes etc. shall be borne by the contractor.
5500.00 175.35 Cum. 9,64,425.00
2. Excavation for Roadway in soft rock for general site grading below ground level in all conditions and nature, including clearing and
1400.00 314.70 Cum. 4,40,580.00
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.182 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
stripping of the area, removal of vegetation, shrubs, taking spot levels, excavating to required depth, line, level and slope, leveling and dressing and consolidating the excavated surface, dewatering by all means upto any extent of water accumulated from any source, sorting out and stacking serviceable and unserviceable materials etc. complete including conveying the excavated material with all lifts and upto a lead of 50 mtr & its spreading or stacking as directed, etc. complete. Note : All payments towards the royalty, fees, taxes etc. shall be borne by the contractor.
3. Excavation for roadway in hard rock/ manjra rock by wedging, chiseling or line drilling including dressing, sectioning to the required grade, camber and side slopes and conveying the excavated material with all lifts and lead, including boulders upto 5 cum and stacking etc. complete. Notes : 1) All payments towards the
royalty, fees, taxes etc. shall be borne by the contractor.
2) The excavated hard rock shall be the contractor's property.
6850.00 644.00 Cum. 44,11,400.00
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.183 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
4. Providing earthwork in embankment with approved materials obtained from the road cutting with a lead of 1.00 KM including all lifts, laying in layers of 20 to 30 cms in thickness, breaking clods, dressing to the required lines, curves, grades, and section with watering and compacting with vibratory power rollers etc. complete. Notes : 1. All payments towards the
royalty, fees, taxes etc. shall be borne by the contractor.
2. The Environmental cess shall be recovered at Rs.1/m3 of gross volume computed without deductions as mentioned for the monthly payments or final payment.
3. P.D. Tests shall be carried out @ one test comprising of 3 specimens average result per 1000 m2 area.
4. Compaction upto 95% Modified P.D. and the laboratory soil dry density shall be not less than 1.6 g/cc. at optimum moisture content.
5. The gross volume of the embankment shall reduced by 5% for monthly payments and 1% for final payment.
1850.00 185.20 Cum. 3,42,620.00
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.184 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
5. Providing earthwork in embankment with approved materials obtained from Contractors own source including all leads and lifts, laying in layers of 20 to 30cms in thickness, breaking clods, dressing to the required lines, curves, grades, and section with watering & compacting with vibratory power roller etc. complete. Notes : 1. All payments towards the
royalty, fees, taxes etc. shall be borne by the contractor.
2. The Environmental cess shall be recovered at Rs.1/m3 of gross volume computed without deductions as mentioned for the monthly payments or final payment.
3. P.D. Tests shall be carried out @ one test comprising of 3 specimens average result per 1000 m2 area.
4. Compaction upto 95% Modified P.D. and the laboratory soil dry density shall be not less than 1.6 g/cc. at 0ptimum moisture content.
5. The gross volume of the embankment shall reduced by 5% for monthly payments and 1% for final payment.
650.00 245.60 Cum. 1,59,640.00
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.185 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
6. Providing earthwork in embankment with approved materials obtained from Contractors own source including all leads and lifts, laying in layers of 20 to 30cms in thickness, breaking clods, dressing to the required lines, curves, grades, and section with watering & compacting with vibratory power rollers etc. complete. Notes : 1. All payments towards the
royalty, fees, taxes etc. shall be borne by the contractor.
2. The Environmental cess shall be recovered at Rs.1/m3 of gross volume computed without deductions as mentioned for the monthly payments or final payment.
3. P.D. Tests shall be carried out @ one test comprising of 3 specimens average result per 1000 m2 area.
4. Compaction upto 97% Modified P.D. and the laboratory soil dry density shall be not less than 1.75 g/cc. at optimum moisture content.
5. The gross volume of the embankment shall reduced by 5% for monthly payments and 1% for final payment.
2700.00 246.00 Cum. 6,63,120.00
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.186 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
7. Providing & laying granular sub-base (GSB) as per clause 401 of M.O.R.T.&H (2001) specifications of specified grading (Table 400-1 or 400-2) in specified thickness in layers. The item to include premixing the materials in plant, transportation to site, spreading in uniform layers with motor grader on a prepared subgrade, compacting with vibratory rollers till 98% of the maximum dry density (IS 2720 part-8) is achieved etc. Complete. The rate includes for tests on completion of each GSB layer. The strength of each GSB layer shall be evaluated by conducting CBR (IS 2720 Part 16 & 31) or Plate load test using 750mm dia. Plate, (IS 9214) for obtaining equivalent CBR value @ one test per 3000 m2 compacted surface area as per the Grading. The item includes for all necessary material, labour, diversions, taxes, royalty, cess etc complete.
a) For Grading-I of close-graded GSB material with minimum CBR value of 30% (As per IS 9214- 1979) to be obtained on top of the compacted layer. (Upper sub-base)
425.00 723.25 Cum. 3,07,381.25
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.187 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
b) For Grading-II of close-graded GSB material with minimum CBR value of 25% (As per IS 9214-1979) to be obtained on top of the compacted layer. (Intermediate sub-base)
500.00 688.40 Cum. 3,44,200.00
c) For Grading-III of close-graded GSB material with minimum CBR value of 20% (As per IS 9214-1979) to be obtained on top of the compacted layer. (Lower sub-base).
275.00 683.10 Cum. 1,87,852.50
8. Providing & laying granular base of Wet Mix Macadam (WMM) as per clause 406 of M.O.R.T.&H (2001) specifications of specified grading (Table 400-11) in specified thickness in layers. The item to include premixing the materials in plant, transportation to site, spreading in uniform layers with paver on a prepared sub-base, compacting with vibratory rollers till 98% of the maximum dry density (IS 2720 Part-8) is achieved etc complete. The rate includes for tests on completion of each WMM layer. The strength of each WMM layer shall be evaluated by Plate load test with 750 mm dia plate. (IS 9214) for obtaining equivalent CBR value @ one test per
375.00 1,025.50 Cum. 3,84,562.50
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.188 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
3000 m2 compacted surface area as per the Grading. The item includes for all necessary material, labour, diversions, taxes, royalty, cess etc complete.
9. Providing and applying low viscosity liquid bituminous material such as bitumen emulsion complying to relevant IRC/IS code of approved type and grade by a self propelled or towed bitumen pressure sprayer as per clause No. 502 of Specifications for road and bridge works (M.O.R.T.& H.,2001). The item includes for preparation of the base, application of the prime coat, curing, relevant tests for quality control as enumerated in table 900-4, diversion of traffic, etc. complete. The rate shall include for all labour, materials, machinery, transportation, taxes etc. complete. For low porosity surfaces such as WMM/WBM at an application rate of 0.6 to 0.9 kg/sqm. with kinematic viscosity of primer at 60 degree ranges between 30-60 centistokes.
3650.00 32.30 Sqm. 1,17,895.00
10. Providing and applying bituminous tack coat @ 5kg/ 10 m2 over B.T. surface by
15,600.00 20.15 Sqm. 3,14,340.00
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.189 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
manual/ mechanical sprayer including supplying all materials, preparing the existing surface, heating bitumen and applying tack coat evenly on the surface etc. complete (using 60/70 grade bitumen) the rate is inclusive of all taxes.
11. Providing and constructing Bituminous Bound Macadam (BBM) surface 75 mm thickness including supplying all materials including metal, bitumen etc. spreading 40 mm hand broken trap metal 9 cum per 100 m2 and 20 mm trap metal at the rate of 1.5 cum/100 sqm., heating and spreading bitumen (excluding tack coat) at 250 kg./100 m2, spreading 12 mm size key aggregate at the rate of 1.8 cum/100 sqm and compaction with vibratory roller complete. Grade of bitumen shall be 60/70. On WBM/WMM surface including existing surface. Excluding tack coat. Note : Item also includes cleaning the road surface with wire brush/brooms and make it free from dust and water before applying/spreading tack coat. The tack coat shall be paid separately.
3400.00 176.65 Sqm. 6,00,610.00
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.190 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
12. Providing and laying in situ Dry lean cement concrete sub-base of trap metal of M-10 gradation using, mixing as per approved design mix, compacting with vibratory roller of minimum 80 – 100 KN static weight to give desired compacted density, providing construction joints and curing with liquid curing compound and sprinkling water and covering with moist hessain or ponding of water for 7 days including all materials, labour, machinery with all leads and lifts, bailing out water manually and formwork etc. complete.
200.00 3,050.00 Cum. 6,10,000.00
13. Providing and laying in situ Dry lean cement concrete sub-base of trap metal of M-15 gradation using, mixing as per approved design mix, compacting with vibratory roller of minimum 80 – 100 KN static weight to give desired compacted density, providing construction joints and curing with liquid curing compound and sprinkling water and covering with moist hessain or ponding of water for 7 days including all materials, labour, machinery with all leads and lifts, bailing out water manually and formwork etc. complete.
200.00 3,466.00 Cum. 6,93,200.00
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.191 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
14. Providing and laying crack relief layer of required thickness with 20% to 30% interconnecting air voids with binder content ranging 2.5% to 4% by weight of total mix. Coarse and fine aggregate shall confirm to clause 507.2.2, 507.2.3 of MORTH specifications and mineral filler shall be as per clause 507.2.4. The job mix formula and composition of crack relief layer shall be as per the particular specifications. The binder to be used for the work shall be PMB 40 (sealoflex) of M/s Ooms Avenhorn. The item also includes all materials, labour required for completion of the item including laying by sensor paver finisher, compacting with power roller of 8 to 10 tonnes including transportation, using PMB-40 manufactured by conversion of 60/70 grade bitumen with modifier with SBS polymer and stabilizer in appropriate dose in manufacture's plant, necessary test etc complete (excluding tack coat). The rate is inclusive of all types of taxes.
100.00 6,779.26 Cum. 6,77,926.00
15. Providing and laying hot mix hot laid Dense Graded Bituminous Macadam
300.00 5,103.40 Cum. 15,31,020.00
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.192 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
(DBM) of required thickness with minimum 4.5% bitumen by weight of total mix/ depending on job mix formula & as per clause 507 of MORTH (2001) specification for road & bridges including diversion of traffic, supply of all materials, heating bitumen and chips, mixing bitumen and chips with necessary filler material in batch type or continuous type or drum mix type hot mix plant, laying dense bituminous macadam by paver finisher including compaction with vibratory roller etc. complete (excluding tack coat). The grade of bitumen shall be 60/70. The rate is inclusive of all types of taxes.
16. Providing & laying hot mix hot laid Asphaltic Concrete / Bituminous Concrete (AC/ BC) with bitumen minimum 6.25% by weight of total mix as per job mix formula as per clause 509 of MORTH (2001) specification for road & bridges including supplying all materials, heating bitumen and chips with necessary filler material mixing bitumen and chips in hot mix plant laying asphaltic concrete with sensor paver finisher including compaction with vibratory
200.00 5,869.50 Cum. 11,73,900.00
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.193 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
roller etc. complete (excluding tack coat). The grade of bitumen shall be 60/70. The rate is inclusive of all types of taxes. The job mix formula shall be conducted as per frequency specified by MORTH.
17. Disposal of surplus excavated material upto 3.0 km. lead including loading, unloading, transporting by mechanical or other means, stacking, spreading, levelling as directed by Engineer etc. complete beyond initial lead of 50m.
6250.00 66.50 Cum. 4,15,625.00
18. Providing PCC precast factory made kerb stone of 500x400x150 mm size in M-25 grade of concrete using design mix with minimum cement content as per IS 456 for moderate exposure condition including fixing in PCC 1:2:4, 250 mm thick, filling the joint with CM 1:3, pointing in CM (1:3) on exposed face etc. complete including painting in two coats of oil paint to exposed surfaces, one coat of primer and excavation and disposal of excavated material, making good the road etc. complete. The rate is inclusive of all types of taxes. The kerb stone
1000.00 531.95 Rmt. 5,31,950.00
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.194 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
at water entry channel shall be of opening as per the drawing or as directed by Engineer.
19. Providing PCC precast factory made kerb stone of 500x400x150 mm size for water entry channel without painting in M-25 grade of concrete using design mix with minimum cement content as per IS 456 for moderate exposure condition including fixing in PCC, 250 mm thick, filling the joint with CM (1:3), pointing in CM (1:3) on exposed face etc. complete and excavation and disposal of excavated material, making good the road etc. complete. The rate is inclusive of all types of taxes.
700.00 507.15 Rmt. 3,55,005.00
20. Providing and fixing PCC pre-cast factory made water table of 500 x 400 x 100 mm size in M-25 grade of concrete using design mix with minimum cement content as per IS 456 including excavation, fixing in PCC M-10, bed 75 mm thick filling the joint in CM (1:3), curing, including excavation as required, disposal of excavated material, making good the road etc. complete. The rate is inclusive of all types of taxes.
1000.00 244.80 Rmt. 2,44,800.00
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.195 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
21. Providing lowering, laying and jointing RCC pipes manufactured as per IS:458 (latest version) having ISI mark 300 mm dia NP-2 class in proper grade including cost of materials, providing and fixing collars in cement mortar 1:2 etc. complete, all taxes (central and local) transportation, loading and unloading and hydraulic testing as per I.S. 458 (latest version) including necessary heavy dewatering by all means up to any extent etc. complete. Note : The contractor has to make his own arrangement for testing the pipeline as per I.S. standard.
250.00 704.00 Rmt. 1,76,000.00
22. Providing lowering, laying and jointing RCC pipes manufactured as per IS:458 (latest version) having ISI mark of following dia NP-3 class in proper grade including cost of materials, providing and fixing collars in cement mortar 1:2 etc. complete, all taxes (central and local) transportation, loading and unloading and hydraulic testing as per I.S. 458 (latest version) including necessary heavy dewatering by all means up to any extent etc. complete.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.196 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
Note : The contractor has to make his own arrangement for testing the pipeline as per I.S. standard.
a) 900 mm dia. NP-3 class 75.00 4,305.84 Rmt. 3,22,938.00 b) 600 mm dia. NP-3 class
15.00 2,296.84 Rmt. 34,452.60
23. Providing and casting Ready Mix Concrete (RMC) of M-20 grade using design mix with minimum cement content and maximum water cement ratio as per IS : 456-2000 using 20 mm nominal maximum size aggregates and down trap metal for foundation and bedding as per detailed design and drawing with all labours, materials, plant & equipments, shuttering formwork, staging, transporting from mix plant upto site of work, pouring the concrete at work site for all lifts including placing, vibrating with mechanical vibrator, finishing and curing etc. complete. The item also includes dewatering by using pumps or manually. The cost also includes all types of taxes, sales tax, insurance, cess levied by local authority etc. complete. (Excluding reinfor-cement and structural steel).
80.00 4,680.00 Cum. 3,74,400.00
24. Providing dry trap/rubble stone soling 15 cm to 23 cm thick including hand packing and compacting etc. complete.
140.00 487.67 Cum. 68,273.80
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.197 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
25. Providing and constructing B.B. masonry chamber of size 1.84 m. x 0.60 m. & 230 mm wall thickness with 15 cm thick 1:3:6 PCC bedding, including excavation, B.B. Masonry in C.M. 1:4, precast RCC frame and cover, etc. complete as directed by Engineer.
8.00 12,933.85 No. 1,03,470.80
26. Filling in footpath with contractor's murum in 15cm to 20cm layers including watering and compaction complete.
650.00 211.67 Cum. 1,37,585.50
27. Providing and applying hot applied thermoplastic pavement white / yellow coloured marking paint with resin and 10% approved glass beads, etc. complete with three years guarantee for white lane marking, spacing as per drawing, for arrows, for pedestrian crossings, for abstraction approach marking, for directional markings at junction (white colour arrows as per drawing or as directed by Engineer, etc. compete.
a) White coloured 60.00 903.84 Sqm. 54,230.40 b) Yellow coloured
150.00 860.80 Sqm. 1,29,120.00
28. Providing and fixing Road junction / information sign boards of size 1.20 x 0.90
1.08 18,130.00 Sqm. 19,580.40
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.198 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
metre prepared fibre reinforced plate 4.0 millimeter thick on frame of 40 x40 mm angle thick for strengthening including bonded with blue retro-reflective sheeting of Engineering grade having pressure sensitive / heat activated adhesive retro-reflective with as per directed colour with retro-reflective symbols, letter, numbers, arrows with two M.S. angle post of 65 x 65 x 6 mm size and 3.65 metre long in one pieces with out joint inflow at bottom and drilled on top with bracing of 40 x 40 x 5 mm M.S. angle and painting with white and black border of 25mm, fixing in 1:4:8 cement concrete block of 60x60x75 cm size at site etc. complete.
29. Providing & fixing following types sign boards with apex point upward prepared on fibre reinforced plate 3.0 millimeter thick bonded with white retro-reflective sheeting on Engineering frade having pressure sunsitie / heat activated adhesive retro-reflective whick back ground and red border and back side gray, retro-reflective symbols, letters, numerals, arrows, one M.S. angle post of 65 x 65 x 6
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.199 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
millimeter size and 3.65 metre long, inflated bottom and drilled on top and painting posts with white and black border of 25 cm, fitting board to post with 2 numbers of strong G.I. bolts and nuts including transportation & fixing in P.C.C. 1:4:8 etc. complete.
a) Cautionary sign boards 90 cm. Equilateral triangle
1.00 6,854.00 No. 6,854.00
b) Informatory sign boards of size 60x 80 cm
1.00 8,893.00 No. 8,893.00
c) Prohibitory sign boards having size 60 cms circular
1.00 6,611.00 No. 6,611.00
Total of Part-I ` 1,69,14,461.75
Total Carried over to Summary of Schedule “A” on Sl.Pg.No. 211 __________________ ___________________ Signature of Tenderer Chief Engineer (South)
Date: Date:
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.200 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 Name of Work : Construction of approach road from Pandav-Taloja junction
to HSR plot, in Sector - 22 Kharghar, Navi Mumbai.
SCHEDULE “A” BILL OF QUANTITIES
Part – II : Construction of S.W. Drains
I. NO. DESCRIPTION QTY. RATE PER AMOUNT 1. Excavation for foundation to
any depth in all types of earth, soils of all types such as sand, gravel, slush, soft murum, hard murum with or without boulders including shoring and strutting whichever necessary including disposing off the surplus materials within 50m, beyond the work site, stacking and spreading as directed. The item includes heavy dewatering by using pumps or manually, shoring, strutting and preparing the bed for foundation and necessary back filling etc. complete. Note : All payments towards the royalty, fees, taxes etc. shall be borne by the contractor.
700.00 175.35 Cum. 1,22,745.00
2. Excavation for foundation to any depth in soft rock including shoring and strutting whichever necessary including disposing off the surplus materials within 50m, beyond the work site, stacking and spreading as directed. The item includes heavy
700.00 314.67 Cum. 2,20,269.00
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.201 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
dewatering by using pumps or manually, shoring and strutting and preparing the bed for foundation and necessary back filling etc. complete. Note : All payments towards the royalty, fees, taxes etc. shall be borne by the contractor.
3. Excavation for foundation in hard rock upto any depth with all lifts by chiseling manually or by mechanical means such as hydraulic rock driller including wedging, line drilling etc. including trimming and levelling the bed, removing the excavated materials upto a distance of 50m beyond the work site with all lifts, stacking the serviceable materials in measurable heaps as directed. The item includes heavy dewatering using pumps or manually, shoring and strutting and preparing the bed for foundation and necessary back filling etc. complete. Notes : 1) All payments towards the
royalty, fees, taxes etc. shall be borne by the contractor.
2) The excavated hard rock shall be the contractor's property.
1400.00 644.00 Cum. 9,01,600.00
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.202 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
4. Providing and laying dry trap metal soling 15 cm. to 23 cm. thick including hand packing with metal, rubble chips, application of required murum/stone dust blindage and compaction including watering etc. complete with all leads, including necessary heavy dewatering either mechanically or manually etc. complete.
375.00 417.00 Cum. 1,56,375.00
5. Providing trap rubble filling behind the walls/abutments/ returns including filling voids with gravel, hand packing and compacting the rubble etc. complete.
650.00 347.00 Cum. 2,25,550.00
6. Providing and laying in situ Ready Mix Concrete (RMC) M-20 grade using design mix with minimum cement content 310 kg./cum. as per IS:456-2000 specifications controlled concrete using maximum water cement ratio 0.45 (for severe condition) of trap / granite / quartzite / gneiss metal for PCC foundation and bedding as per detailed design & drawing with all labours, materials, plant & equipment, scaffolding, shuttering, formwork, staging including transporting, placing, vibrating with mechanical vibrator and all lifts and leads, finishing and curing, adding required
140.00 5,846.00 Cum. 8,18,440.00
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.203 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
dosages (as per the manufacturers recommenda-tions) of approved plasticiser as admixtures etc. complete. (excluding cost of reinforce-ment). The rate includes cost of all ingredients used for manufacture of concrete with plasticizer to achieve adequate workability while placing, transportation from plant to work site, controlling temperature of concrete, pumping of concrete into formwork or placing manually for all lifts. The item includes heavy dewatering to any extent of water accumulated by any source by using pumps or manually. The cost also includes all types of taxes, excise duty, octroi, sales tax, insurance, cess levied by Govt. / local authority etc. complete.
7. Providing and laying in situ Ready Mix Concrete (RMC) M-20 grade using design mix with minimum cement content 310 kg./cum. as per IS:456-2000 specifications controlled concrete using maximum water cement ratio 0.45 (for severe condition) of trap / granite / quartzite / gneiss metal for PCC abutments, wall, pardi, haunches as per detailed design & drawing with all labours, materials, plant &
10.00 7,644.50 Cum. 76,445.00
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.204 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
equipment, scaffolding, shuttering, formwork, staging including transporting, placing, vibrating with mechanical vibrator and all lifts and leads, finishing and curing, adding required dosages (as per the manufacturers recommenda-tions) of approved plasticiser as admixtures etc. complete. (excluding cost of reinforce-ment). The rate includes cost of all ingredients used for manufacture of concrete with plasticizer to achieve adequate workability while placing, transportation from plant to work site, controlling temperature of concrete, pumping of concrete into formwork or placing manually for all lifts. The item includes heavy dewatering to any extent of water accumulated by any source by using pumps or manually. The cost also includes all types of taxes, excise duty, octroi, sales tax, insurance, cess levied by Govt. / local authority etc. complete.
8. Providing and laying in situ Ready Mix Concrete (RMC) M-30 grade using design mix with minimum cement content 360 kg./cum. as per IS:456-2000 specifications controlled concrete using maximum water cement ratio 0.40 (for severe
170.00 6,189.00 Cum. 10,52,130.00
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.205 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
condition) of trap / granite / quartzite / gneiss metal for RCC foundation and raft as per detailed design & drawing with all labours, material, plant & equipment, scaffolding, shuttering, formwork, staging including transporting, placing, vibrating with mechanical vibrator and all lifts and leads, finishing and curing, adding required dosages (as per the manufacturers recommenda-tions) of approved plasticiser as admixtures etc. complete. (excluding cost of reinforce-ment). The rate includes cost of all ingredients used for manufacture of concrete with plasticizer to achieve adequate workability while placing, transportation from plant to work site, controlling temperature of concrete, pumping of concrete into formwork or placing manually for all lifts. The item includes heavy dewatering to any extent of water accumulated by any source by using pumps or manually. The cost also includes all types of taxes, excise duty, octroi, sales tax, insurance, cess levied by Govt. / local authority etc. complete.
9. Providing and laying in situ Ready Mix Concrete (RMC) M-30 grade using design mix
420.00 7,962.00 Cum. 33,44,040.00
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.206 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
with minimum cement content 360 kg./cum. as per IS:456-2000 specifications controlled concrete using maximum water cement ratio 0.40 (for severe condition) of trap / granite / quartzite / gneiss metal for vertical RCC walls etc. as per detailed design & drawing with all labours, materials, plant & equipment, scaffolding, shuttering, formwork, staging including transporting, placing, vibrating with mechanical vibrator and all lifts and leads, finishing and curing, adding required dosages (as per the manufacturers recommenda-tions) of approved plasticiser as admixtures etc. complete. (excluding cost of reinforce-ment). The rate includes cost of all ingredients used for manufacture of concrete with plasticizer to achieve adequate workability while placing, transportation from plant to work site, controlling temperature of concrete, pumping of concrete into formwork or placing manually for all lifts. The item includes heavy dewatering to any extent of water accumulated by any source by using pumps or manually. The cost also includes all types of taxes, excise duty, octroi, sales tax, insurance, cess levied by Govt. / local authority etc. complete.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.207 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
10. Providing and laying in situ Ready Mix Concrete (RMC) M-30 grade using design mix with minimum cement content 360 kg./cum. as per IS:456-2000 specifications controlled concrete using maximum water cement ratio 0.40 (for severe condition) of trap / granite / quartzite / gneiss metal for approach slab and RCC slab etc. as per detailed design & drawing with all labours, materials, plant & equipment, scaffolding, shuttering, formwork, staging including transporting, placing, vibrating with mechanical vibrator and all lifts and leads, finishing and curing, adding required dosages (as per the manufacturers recommenda-tions) of approved plasticiser as admixtures etc. complete. (excluding cost of reinforce-ment). The rate includes cost of all ingredients used for manufacture of concrete with plasticizer to achieve adequate workability while placing, transportation from plant to work site, controlling temperature of concrete, pumping of concrete into formwork or placing manually for all lifts. The item includes heavy dewatering to any extent of water accumulated by any source by using pumps or manually. The cost also
160.00 7,962.00 Cum. 12,73,920.00
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.208 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
includes all types of taxes, excise duty, octroi, sales tax, insurance, cess levied by Govt. / local authority etc. complete.
11. Providing and placing, fixing in all RCC item of foundation, substructure & superstructures, M.S. Steel bars / T.M.T. bars of various diameters as per relevant IS (latest version) of approved make for reinforcement in any position as per detailed drawing or as directed for all diameters including, cutting, bending in shape, fixing in position with galvanised binding wire of 17 guage or tack welding as per IS 9417 (latest version) as directed etc. complete including dewatering using pumps or manually during placing reinforcement and keeping dry during concreting of RCC members. The cost also includes all types of taxes, excise duty, sales tax, insurance, cess levied by local authority etc. complete. Note : The quantity to be measured and paid for this item shall not include wastage in cutting. Actually installed and placed in position steel shall be paid for including hooks, laps, bends, pins and chairs. No separate payment shall be made for binding wire or tack welding.
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.209 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
a) T.M.T. Steel 61.00 47,749.00 M.T. 29,12,689.00 b) Mild Steel
0.10 37,966.00 M.T. 3,796.60
12. Providing and fixing precast RCC beams of size 150x150 mm over SW Drain in M-30 grade of concrete using design mix with minimum cement content as per IS 456 as per detailed design and drawings or as directed including steel centering, compaction, curing and finishing uneven and honey combed surface with cement mortar 1:3 of sufficient minimum thickness to give a smooth and even surface including providing & fixing steel reinforcement as per the drawing or as directed by Engineer. The rate is inclusive of all types of taxes.
600.00 204.89 Rmt. 1,22,934.00
13. Providing and fixing precast RCC slab of 100 mm thickness in M-30 grade of concrete using design mix with minimum cement content as per IS 456 as per detailed design and drawings or as directed with fixing of 3 mm thick M.S. plate around the slab for inspection opening for S.W.drain including compaction, curing and finishing uneven and honey combed surface with cement
150.00 1,386.15 Sqm. 2,07,922.50
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.210 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 I. NO. DESCRIPTION QTY. RATE PER AMOUNT
mortar 1:3 of sufficient minimum thickness to give a smooth and even surface including reinforcement as per the drawing or as directed by Engineer. The rate is inclusive of all types of taxes.
14. Providing and fixing 100 mm dia AC/PVC pipes for weep holes, staggered as per drawing or as directed by Engineer etc. complete.
600.00 89.00 Rmt. 53,400.00
15. Disposal of surplus excavated material upto 3.0 km. lead including loading, unloading, transporting by mechanical or other means, stacking, spreading, levelling as directed by Engineer etc. complete beyond initial lead of 50m.
1350.00 66.50 Cum. 89,775.00
Total of Part-II ` 1,15,82,031.10
Total Carried over to Summary of Schedule “A” on Sl.Pg.No. 211 __________________ ___________________ Signature of Tenderer Chief Engineer (South)
Date: Date:
CIDCO OF MAHARASHTRA LIMITED Sl.Pg.No.211 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13 Name of Work : Construction of approach road from Pandav-Taloja junction
to HSR plot, in Sector - 22 Kharghar, Navi Mumbai.
SUMMARY OF SCHEDULE “A”
PART NO.
PARTICULARS TOTAL B/F FROM SL.PG.NO.
AMOUNT
Part-I Construction of Approach Road 199 1,69,14,461.75Part-II Construction of S.W. Drains 210 1,15,82,031.10
A) Total of Schedule “A” ` 2,84,96,492.85
B) ADD/SUBSTRACT (+/-) _____% quoted by ` the Contractor to reflect the total cost.
__________________ ___________________ Signature of Tenderer Chief Engineer (South)
Date: Date:
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.215 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
PARTICULAR SPECIFICATIONS
1.0 GENERAL :
The particular specifications are to be read in conjunction with the
specifications contained in the description of items of Schedule “A”
specification contained in “Standard Specifications” published by
Buildings and Communications Department of Maharashtra, relevant
Indian Standard Specifications. In case of conflicting provisions in
various documents (except Schedule “A”), the provisions in Particular
Specifications shall take precedence over any other documents.
2.0 CLEARING SITE :
The ground over which the Roads are to be constructed shall be cleared
from all loose, vegetation, bushes, stumps and all other objectionable
materials. Brushwood, stumps, vegetation etc. shall be cut flush with
the ground. Materials obtained from clearing site shall be disposed off
as directed.
3.0 Excavation for roadways in all types of soil, soft murum, hard
murum, hard murum with boulders, soft rock, hard rock/
manjra rock by wedging, chiseling or line drilling in all
conditions and nature, including clearing and stripping of the
area, removal of vegetation, shrubs, taking spot levels,
excavating to required depth, line, level and slope, leveling and
dressing and consolidating the excavated surface, dewatering by
all means upto any extent of water accumulated from any source,
sorting out and stacking serviceable and unserviceable materials
etc. complete including conveying the excavated material with all
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.216 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
lifts and upto a lead of 50 mtr & its spreading or stacking as
directed, etc. complete.
3.1 GENERAL :
Roadway and drainage excavation shall consist of excavation,
removal, conveyance and satisfactory disposal of materials of the
strata covered by the wording of the item for the construction of the
road and its drainage including finishing the surface and the slopes to
the required grade, lines, levels, curves and sections shown on the
plans or as directed by the Engineer. The item also covers maintaining
the work in finished condition until taken over by the Department.
3.2 CLEARING SITE :
The land width required for the roadway, gutters, side slopes and
catchwater gutters shall be cleared of all trees having a girth of 30 cm
(about 1') and less, brushwood, loose stones, vegetation, bushes,
stumps and all other objectionable materials. The roots of trees shall
be removed to a depth of 30 cm (about 1') below the surface of the
road formation and side slopes and the excavation filled up with
excavated materials in 15 cm to 20 cm. (about 6” to 8”) Layers and
compacted, Brushwood, stumps, vegetation, etc. shall be cut flush
with the ground. All the materials cleared will be the property of
CIDCO. Useful materials shall be arranged in convenient stacks along
the road boundary or as directed at places within a lead of 50 metres
(164') and handed over to the Department in convenient sections.
Unsuitable materials shall be burnt or otherwise disposed of by the
contractor at his own cost as directed by the Engineer without causing
any nuisance, inconvenience or damage to the work, property or
people in the neighbourhood. If the material is disposed of outside the
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.217 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
road land, necessary permission from the private land owners shall be
taken by the contractor and royalty, etc., if any paid by him without
claiming compensation. In all cases, the materials shall be disposed of
in a neat manner.
3.3 SETTING OUT :
After clearing the site, the alignment of the road shall be properly set
out true to lines, curves, slopes, grades and sections as shown on the
plans or directed by the Engineer. The contractor shall provide all
labour and materials such as lime, string, pegs, nails, bamboos,
stones, mortar, concrete etc., required for setting out, establishing
Bench Marks and giving profiles. The contractor shall responsible for
maintaining the B.Ms., profiles alignment and other stacks and marks
as long as they are required for the work in the opinion of the
Engineer. If the contractor defaults in this respect even after direction
by the Engineer within the specified time, they may be restored by the
Engineer at the cost of the contractor. Levels and sections of the
ground shall be taken and recorded in the presence of the contractor or
his authorized representative before the excavation is started to serve as
the basis of measurement. The contractor or his representative shall
sign the book in token of his acceptance of the level etc. If there is any
disagreement, the contractor shall inform of it in writing to the officer
concerned with specific reference to the sections before starting further
work. Once further work is started, no cognizance of any complaint
shall be taken merely not signing of the book shall not be deemed as
disagreement.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.218 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
3.4 CLASSIFICATION OF EXCAVATION :
All the materials encountered in the excavation would be mainly
classified in the following groups :-
1) Soils of all sorts, sand, gravel, soft murum and other similar soft
or loose materials.
2) Hard murum.
3) Hard murum and boulders.
4) Soft rock.
5) Hard rock (chiselled, wedged or line drilled).
6) Laterite.
7) Slush / Marine Clay.
1) Soil of sorts, sand, gravel, soft murum and other similar soft or
loose materials. Soils of all sorts, sand, gravel, soft murum,
chopan yellow soil, etc., shall included all material of earthy
nature which can be easily ploughed or small shingle and gravel
which can be easily removed. Removal of small boulder not
exceeding 0.03 cu.m. or 30 litres (about one c.ft.) occuring in the
strata will be included in the rate for this item.
2) Hard murum : This shall include all kinds of disintegrated rock
or shale or indurated clay free from boulders larger than 003
cu.m. or 30 litres (about one cu.ft) and can be removed with pick
and shovel though not without some difficulty.
3) Hard murum & boulders : This shall include all kinds of
disintegrated rock or shale or indurated clay interspersed with
boulders less than half cubic metre (about half a cu.yd.) and
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.219 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
larger than 0.03 cu.m. or 30 litres (approx. one c.ft.) which do
not normally need blasting and can be removed with pick, bar,
wedges, and hammer. Boulders bigger than 1/2 cu.m. will be
paid for as soft or hard rock according as it is soft or hard rock.
4) Soft rock : This shall include all materials which is rock or hard
conglomerate, all decomposed and weathered rock, highly
fissured rock, old masonry and also soft rock, boulders bigger
than 1/2 cubic meter and other varieties of rock which would
normally be removed with pick, crow bars, wedges and hammer
with some difficulty.
5) Hard rock (chiselled wedged or line drilled) : This shall include
all rock occuring in masses which can best be removed by
blasting but which owing to the proximity of structures,
possibility of shattering the rock below or for any other reason
should be cut by a means of cold chisels or wedges or line
drilling. Manjara rock shall be considered as hard rock.
6) Laterite : This shall include laterite rock soft and hard which can
be removed with Dhokans or blasting. Lateritic murum which
has not hardened into stone shall be classified as hard murum.
7) Slush / Marine Clay : This items includes clearing the land width
of all shrubs, weeds, bushes etc. The work will also have to be
done in the area subject to the tidal water. The work is to be
executed as directed by the Engineer. The slush (Marine clay) is
to be removed on top of hard strata such as murum, weathered
rock, soft rock, hard rock etc., whichever is met earlier, which is
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.220 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
suitable to lay embankment foundation on such suitable strata.
The excavated stuff to be deposited as per direction of Engineer
as per site situation. For excavation in slush Contractor shall use
machinery like mechanical excavators or any other suitable type
of mechanical equipment and other machinery for transporting
excavated slush for speedy execution. For removing slush
wherever necessary, if earthen or rubble bunds are required, the
same shall be provided by the Contractor at his cost as per
directions of Engineer.
The classification of the excavation would be decided by the Engineer
and his decisions shall be final and binding on the contractor. Merely
the use of explosives in excavation will not be considered as a reason
for higher classification unless blasting is clearly necessary in the
opinion of the Engineer.
3.5 CONSTRUCTION METHOD :
Profiles of the section including the road side gutters to be excavated
shall be laid at suitable intervals of 10 m.(about 32.8') to 50 m.(about
64') or other intervals directed by the Engineer to conform to the
curved or straight alignment, section, grades and side slopes. The
lines of cuts shall be clearly marked and profiles of embankments
where excavated materials are to be used shall be set up with the toe
line marked on each side. The roadway section shall be first
excavated with vertical sides for each lift and the side slopes for that
lift shall be excavated in steps.
These steps shall be smoothened to the required slopes when the
excavation reaches the road formation. The contractor shall on no
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.221 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
account excavate beyond the slopes or below the specified grade
unless so directed by the Engineer in writing. If excavation is done
below the specified level or outside the section, it shall not be paid for
and the contractor shall be required to fill up at his own cost such extra
excavation in the road portion with approved materials of the
embankment grade in layer of 15 cm. to 20 cm. (about 6” to 8”)
watered and fully compacted to attain maximum density laid down for
the embankment in the same agreement elsewhere. The Engineer
may require measurement ridges and dead-men to be left at specified
interval or places and kept intact till ordered to be removed for the
purpose of check measurements. The excavation shall be finished
neatly, smoothly and evenly to the correct lines, curves, grades
sections and side slopes as shown on the plans or directed by the
Engineer. The sub-grade if loose shall be scarified, watered and
compacted to the same density as the embankment. The section, side
slopes and catchwater gutters shall be maintained by the contractor at
his own cost in such a way the formation and gutters will be well
drained by providing necessary diversions, etc., and not damaged due
to obstruction of any drainage. Necessary passages shall be provided
for leading away seepage, springs, surface flow or rain water safely
without damaging the work. If any damage occurs due to default of
the contractor in this respect, he shall make good the damage at his
own cost. If it is necessary in the execution of the work to interrupt
existing surface drainage, irrigation channels, sewers or under
drainage, temporary arrangements shall be provided till such time as is
necessary. The contractor at his own cost shall make good the
interrupted drainage and sewer, etc., unless separately provided in the
tender. Any damage to the existing works or work in hand caused as a
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.222 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
result of his operations or negligence shall be made good by the
contractor at his own cost.
Roadside gutters shall be excavated to the specified sections and shall
be measured along with the main cutting in cubic metres.
Intercepting or catchwater gutters where necessary shall be built to the
cross-sections, shown on the plans in time to prevent damage to the
cuts or banks.
3.6 DEWATERING :
If water is met with in the excavation due to springs, seepage, rain or
other causes it shall be removed by suitable diversions, pumping or
bailing out and the excavation kept dry whenever so required or
directed by the Engineer. Care shall be taken to discharge the water
so as not to cause damage to the work, crops or any property or any
inconvenience to the property holders in the neighbourhood. Unless
separate provisions is made in the tender for dewatering, the cost of
dewatering shall be covered by the rate for excavation.
3.7 SLIDES :
If slides occur in the cutting they shall be removed as ordered by the
Engineer. If finished slopes slide into the roadway before the final
acceptance of the work, such slides shall be removed by the contractor
and shall be paid for at the contract rate for the class of excavation
involved provided the slides are not due to any negligence of the
contractor. The classification of the material in slides shall conform to
its condition at the time of removal and payment made accordingly
regardless or its prior condition.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.223 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Care shall be taken to see that excavation is arranged in a safe way so
that there will be no risk to the work or workmen by slides, falling
materials, boulders and collapsing sides etc.
3.8 PROTECTION :
If there is traffic nearby or if there are towns and villages in the
neighbourhood, barricades and/or traffic signals shall be provided day
and night for the duration of the work in such a way as to prevent
accidents. Warning signals shall be displayed at 70 m. from the
danger point on both sides to give sufficient warning. If necessary,
signallers shall be stationed at each end to regulate traffic where it is
heavy. Measures shall be taken to see that the excavation does not
affect or damage adjoining structures or property. If there is damage
to property, injury to workers, the members of the public, animals etc.
due to the negligence of the contractor, he will be responsible and
liable to all the consequences including compensation.
3.9 DIVERSIONS :
If diversions are necessary for the traffic they shall be provided and
maintained as specified under specification No. BR.1 of Red Book.
3.10 DISPOSAL OF EXCAVATED MATERIALS :
All the excavated materials shall be the property of CIDCO. When
the useful excavated materials is to be used in embankment within a
lead of 50 m. (about 164') it shall be directly deposited at the required
location in 15 cm. to 20 cm. (about 6” to 8”) layers, the charge for
watering and compacting such materials being paid under a separate
item. No handling or conveyance charges shall be paid if the material
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.224 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
is temporarily deposited elsewhere and subsequently conveyed to the
site of deposition. The sequence of operations should be arranged
properly. Useful excavated materials to be used in embankment
beyond 50 m. (about 164') may be conveyed directly to the site of use
and laid in layers or first deposited in heaps and conveyed and laid in
layers subsequently the conveyance and the charges for the watering
and compaction shall be paid for under a separate item. Materials
required for four times other than bank shall be arranged in neat
stacked at convenient places within a load of 50 m. (about 164')
without interfering with the drainage in any way. If no CIDCO land
is available but the excavated useful stuff is to be stacked temporarily
before use under the same agreement the contractor shall make his
own arrangements for the stacking of his materials temporarily on
private lands by paying rents, etc., without claiming any
compensation. Surplus cost to uniformly widen embankment to
flatten slopes and to fill low places in the road land within a lead of
50 m. (about 164') is so directed by the Engineer. Materials not
required for any use whatsoever may be disposed off by the contractor
at his own cost in a manner approved by the Engineer. The excavated
materials shall not be deposited within 3 m. (about 10') from the top
edges of slope of the bank unless expressly permitted by the Engineer
in writing. When the excavated materials is deposited or disposed off
by the contractor in land not belonging to Government he shall be
responsible for any compensation required to be paid to the private
land owner. The leads shall be measured from approximately centre of
gravity of the block of the cutting to the approximate centre of gravity
of block of deposited material.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.225 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
3.11 MAINTENANCE :
The excavated roadway shall be maintained satisfactorily and protected
by the contractor at his own cost against all damage till it is taken over
by the Department. If any damage occurs, the contractor shall be
responsible to repair it at his own cost.
3.12 ITEM TO INCLUDE :
1) Clearing site.
2) Setting out including necessary labour, material and fixing
reference marks.
3) Diversion unless separately provided in the tender.
4) Dewatering unless separately provided in the tender.
5) Protective measures for work, work people, public, animal,
property, etc.
6) Excavation to the required lines, curves, section and grades.
7) Conveying the excavated materials including all lifts and lead
upto 50 m. (about 164'), spreading in layers or stacking as
directed and disposing off unwanted materials.
8) All labour, materials and use of equipment and tolls required for
completing the item satisfactorily.
9) Compensation on account of damages, accidents or use of private
lands royalty, etc.
3.13 MODE OF MEASUREMENT & PAYMENT :
The contract rate shall be for a unit of one cubic metre (about 32.2
c.ft.) for the strata mentioned in the wording of the items of excavation
acceptably completed, limited to the dimensions shown on the plans or
as directed by the Engineer. Excavation shall be measured in its
original position by the taking cross-sections before the work start and
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.226 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
after it is entirely completed. The quantity shall be worked out by the
average and area method. The individual dimensions and areas of the
cutting shall be measured correct upto two places of decimals of a
metre and square metre respectively and the quantity worked out
correct up to two places of decimals of a cubic metre.
When the classification of the strata changes, the contractor shall bring
this to the notice of the Engineer who will then verify and if necessary
take levels for the changed strata for purpose of measurement.
The Engineer at his option may direct dead-men to be left at such
intervals as he may indicate for purpose of measuring the depths and
other dimensions either for initial measurements or for checking.
Deduction shall be made for these dead-men. These shall be removed
when no longer required and the deduction restored thereafter. If the
dead-men are not removed and used in the work or otherwise disposed
of as directed by the Engineer within 15 days of the date of check
measurement, the Engineer shall have the right to remove then at the
contractor's cost. If for any reason the dead-men are damaged at the
time of measurement the measuring or check measuring officer shall
estimate the quantity of earthwork at his discretion and such estimate
shall be final.
4.0 Providing earthwork in embankment with approved materials
obtained from the road cutting / Contractors own source with a
lead of 1.00 KM including all lifts, laying in layers of 20 to 30
cms in thickness, breaking clods, dressing to the required lines,
curves, grades, and section with watering and compacting to 95%
/ 97% Modified Proctor Density etc. complete.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.227 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
4.1 GENERAL :
The work shall include preliminaries of clearing site, setting out and
preparing the ground and thereafter forming embankment for the road
with approved materials obtained from Departmental land or other
sources, laying them in layers, watering and compacting to the
required density and lines, curves, grades, cross section and
dimensions shown on the plan or as directed by the Engineer with due
allowance for shrinkage.
4.2 CLEARING SITE :
The ground over which embankment is to be formed shall be cleared
of all trees, brushwood, loose stones, vegetation, bushes, stumps and
all other objectionable materials, under this item. Roots of trees shall
be grubbed to a depth of at least 15 cm. below the original ground
surface and at least 30 cm. below the formation level whichever is
deeper. The holes dug up for grubbing roots etc. shall be filled with
excavated materials in layers of 15 cm. and compacted. Brushwood,
stumps, vegetation etc. shall be cut flush with the ground materials
obtained from clearing site shall be dealt with according to
specification No. Rd.3.2.
4.3 SETTING OUT :
After the site is cleared, setting out shall be done as laid down in
specification No. Rd.3.3. Profiles shall be set up with stout poles to
mark the centre and edges of the formation with the top levels of
formation clearly marked by paint or cut and the slopes with string and
pegs at every 80 metres on straight portion and 10 m. or less on curves
or as directed by the Engineer. Toe line may be marked with pick
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.228 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
marks. Longitudinal and cross section levels shall be taken recorded
and checked for measurements and signed by the contractor or his
representative.
All the materials and labour required for this item shall be supplied
and profiles, B.Ms. etc. put up by the contractor. These shall be
covered by the rate.
Profiles, pegs, bench marks and other marks shall be maintained
without any disturbance as long as they are required.
4.4 MATERIALS :
After utilising, for the embankment all the useful and acceptable
materials obtained from the road cutting within the specified leads the
contractor shall obtain additional materials from contractors own
sources. Satisfactory soil murum or a mixture of soil, sand, murum,
gravel, small boulders or rubble shall normally be acceptable. Soil
having dry density less than 1.6 gm./cc. shall not be used in
embankments for 95% M.P.D. Soil having laboratory dry density less
than 1.75 gm./cc. shall not be used in embankments for 97% M.P.D.
Only the materials considered suitable as above by the Engineer shall
be used for the bank. Rejected materials shall not be put into the bank
nor brought to the work site. Perishable materials such as stumps,
pieces of wood, roots, rubbish, etc. and such other materials as will
effect the stability of the embankment shall not be used. Soils with
humus of grass will be permitted to be used as surface covering for the
bank slopes to a thickness of not more than 30 cm.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.229 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
4.5 EQUIPMENT :
Pickaxes, crowbars, phawras and pans may be used for manual work.
Scrapers, dozers, graders, shovels, dumpers, trucks, trolleys etc. may
be used for mechanised work. Three wheel 8 tonne power roller or
sheepsfoot roller giving a pressure required to obtain the specified
density may be used for compaction. Bullock carts with tanks or
mechanically driven tankers may be used for watering.
4.6 CONSTRUCTION METHOD :
4.6.1 Diversion :
If diversions barricading and signals are found to be necessary, they
shall be provided as directed by Engineer.
4.6.2 Preparing the ground for laying bank :
Before any material is laid for the bank the ground shall be cleared of
all rubbish etc. and the holes if any, filled up. When the embankment
is to be laid on hill sides or slopes, the existing slopes shall be
ploughed deeply. If the cross slopes are steeper than 1 in 3, steps with
reverse slope shall be cut into the slopes to give proper hold and
seating to the bank as directed by the Engineer. On surfaces flatter
than 1 in 15 no special surface treatment such as cutting steps shall be
necessary. The top 15 cm. of soil shall be scarified and watered if
directed and compacted to the same density as specified for the
embankment before any material is laid for the bank-work.
When the embankment is to be placed over an existing road or other
hard surface which is within 15 cm. of the finished formation, the road
or other hard surface shall be scarified to a minimum depth of 15 cm.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.230 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
The rate for embankment includes all the operations for preparing the
bed for laying the bank.
4.6.3 Laying the bank :
Embankment material shall be placed in successive horizontal layers
of 20 cm. to 30 cm. depth, extending to the full width of the
embankment including the slopes at the level of the particular layer
and 30 cm. more on both sides to allow compaction of the full
specified section. The extra loose stuff at the edges shall be trimmed
later after completion of the bank work without extra cost leaving the
correct section fully compacted.
Keeping the width of the bank initially less and widening it later by
dumping loose earth on the slopes shall not be permitted as the
additional width and slopes will remain loose and uncompacted.
Similar procedure to extend the embankment by dumping the material
longitudinally shall also not be allowed. When placing the bankwork
in 20 cm. to 30 cm. layers is not feasible as in water or over slopes too
steep to operate the construction equipment, the embankment may be
constructed in one layer to the minimum level at which equipment can
be operated and above such a level, the embankment shall be made up
in layers of specified thickness. When boulders, broken stones and
similar hard materials are mixed up with the embankment materials
care shall be taken to see that they are distributed uniformly into the
bank and that no hollows are left near them. No stone or hard material
shall project above the top of any layer. Each layer of embankment
shall be watered, levelled and compacted as specified hereinafter,
before the succeeding layer is placed. The surface of the embankment
shall, at all times during construction, be maintained at such a cross
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.231 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
fall as will shed water and prevent ponding. If bridges and culverts on
the road are not completed in advance of bankwork, a length of 15 m.
to 30 m. bank shall be left on each side of the structure and these
lengths shall be dealt with later for placing the bankwork.
4.6.4 Watering :
If the bank material contains less than the optimum moisture water
shall be added to the material in the borrow pits or alternatively in the
loose layers of the embankment to bring the moisture uniformly upto
requirement. If some moisture is likely to be evaporated in transit or
in the bank before compaction adequate water in excess shall be added
to allow for the loss. If the material contains more than the required
moisture, it shall be allowed to dry until the moisture is reduced to the
required extent. If due to wet weather etc., the moisture content of the
soil cannot be reduced to the appropriate amount by exposure, bank
work shall be suspended till suitable conditions prevail without
contractor's claiming any compensation.
Water to be used shall be free from harmful elements which may
cause heavy efflorescence etc., and approved by the Engineer. The
contractor shall make his own arrangement for getting adequate
quantity of acceptable water.
4.6.5 Compaction :
When a loose layer is levelled manually or mechanically and
moistured or dried to a uniform moisture content suitable for
maximum compaction, it shall be compacted by power roller, sheeps
foot rollers or vibratory roller or heavy hauling or dozing equipment to
give the specified 95% / 97% of the Modified Proctor density for
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.232 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
respective item specified under Schedule “A”. If on testing, the density
is found to be less than 95% / 97% of the Modified Proctor density the
contractor shall do additional compaction necessary to get the specified
density after adding water if required. If the density can not be
improved on reasonable efforts, the work may be accepted as
substandard by the Engineer, if he thinks it not harmful for the
purpose, at a reduce rate. Where the specified density is imperative the
work shall be removed and redone by the contractor at his own cost to
give the specified density.
Where the material allowed to be used is excessively stony or sandy so
that it will not compact to the required density where such material is
otherwise acceptable for embankment construction the Engineer may
waive the tests for stony or sandy portions where the required test
results are contained. Each layer shall be compacted fully before the
next layer is laid.
Proper sequence of all component operation shall be maintained to
give individual progress.
To allow for subsequent settlement, the finished level or of the
embankment may be kept higher than the specified level by 1 cm. for
each metre of the height of the bank and this, if provided, will be paid
for.
The hauling equipment, animals, labour etc., shall be made to go over
the bank as far as possible, to get the initial compaction. Care shall be
taken for getting good compaction behind abutments returns and wings
walls, etc.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.233 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Bank-work in areas not accessible to rollers such as those adjoining
bridges, culverts and other work, shall be carried out independently of
the main embankment and shall be have the layers placed in 10 cm. to
15 cm. (about 4" to 6") height and each layer shall be moistened and
thoroughly compacted with mechanical or manual tampers.
Embankment shall be brought up simultaneously in equal layers on
each side and compacted carefully to avoid unequal pressure etc.
4.7 PROTECTION :
Proper care shall be taken to ensure that the method of operation and
compaction of the bank-word does not cause damage or undue strain
to any structural element. Embankment over and around bridges or
culverts shall be of approved materials and carefully placed and
compacted. The contractor shall take all precautions necessary for the
protection of the bank-work by diversion of streams, local surface
drainage, rain water etc. likely to damage the bank. Any damage to
the bank-work due to no protection or inadequate protection shall be
made good by the contractor at his own cost. Conveyance of materials
shall not cause obstruction or nuisance to the nearby property owners
and traffic.
4.8 FINISHING :
The embankment shall be finished and dressed smooth and even in
conformity with the alignment, levels, cross- sections and dimensions
shown on the drawings with due allowance for shrinkage. On curves,
section shall be provided with super elevation and increased widths as
shown on the plans or directed by the Engineer. All damages caused
by rain, flood or any other reason shall be made good in the finishing
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.234 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
operations. The road land which shall be cleared of all debris and
ugly spots near camping areas etc. for which the contractor or his men
were responsible.
4.9 MAINTENANCE :
The contractor shall be responsible for maintaining the bank-work
satisfactorily at his own cost till finally accepted including making
good any damages.
4.10 TESTS :
1) Tests shall be made to determine the maximum density of the
material to be used by the Proctor method before starting the
work.
2) Density tests shall be carried out for the bankwork during the
progress of the work. One set of three core samples for every
1,000 sq.m. area of each layer of bankwork shall be taken and
tested by sand replacement method. The average density shall
not be less than 95% / 97% of the Modified Proctor density for
respective item specified under Schedule “A”.
4.11 ITEM TO INCLUDE :
1) Clearing site.
2) Setting out alignment including necessary labour and materials
and maintaining it as long as required.
3) Preparing the ground for laying the embankment.
4) Providing and maintaining diversions if necessary.
5) Obtaining the embankment materials including all lifts and leads
and laying the bank in layers, watering, compaction and tests and
Royalties, fees etc. if any.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.235 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
6) Protecting and maintaining the bank.
7) Finishing the embankment.
8) All labour, materials, use of equipment, tools and plants
necessary for completing the work satisfactorily.
4.12 MODE OF MEASUREMENT AND PAYMENT :
The contract rate shall be per cu. metre of the finished bankwork.
Measurements shall normally be taken by levelling sections and
chaining distances between them.
The measurements of the sections shall be limited to the dimensions
shown on the drawings or those ordered by the Engineer in writing.
The dimensions shall be recorded correct upto two places of decimals
of a metre. The sectional areas shall be worked out correct upto two
places of decimals of a sq.metre. The quantity shall be worked out
correct upto two places of decimals of a cu.m. by the average end area
method.
Deduction shall be made from the gross volume for monthly payments
as well as final payment as prescribed in respective item under
Schedule “A”.
5.0 GRANULAR SUB-BASE
5.1 Scope :
This work shall consist of laying and compacting well- graded material
on prepared subgrade in accordance with the requirements of these
specifications. The material shall be laid in one or more layers as
sub-base or lower sub-base and upper sub-base (termed as sub-base
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.236 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
hereinafter) as necessary according to lines, grades and cross-sections
shown on the drawings or as directed by the Engineer.
5.2 Materials :
5.2.1 The material to be used for the work shall be natural sand, gravel,
crushed stone or combination thereof depending upon the grading
required. Materials like crushed slag, crushed concrete, brick metal
and kankar may be allowed only with the specific approval of the
Engineer. The material shall be free from organic or other deleterious
constituents and conform to one of the three gradings given in
Table-1.
While the grading in Table - 1 are respect of close-graded granular
sub-base materials, one each for maximum particle size of 75 mm, 53
mm and 26.5 mm, the corresponding gradings for the coarse graded
materials for each of the three maximum particle sizes are given at
Table - 2. The grading to be adopted for a project is specified in the
contract.
5.2.2 Physical requirements : The material shall have a 10 percent fines
value of 50 kN or more (for sample in soaked condition) when tested
in compliance with BS:812 (Part-III). The water absorption volume of
the coarse aggregate shall be determined as per IS:2386 (Part-III); if
this value is greater than 2 percent, the soundness test shall be carried
out on the material delivered to site as per IS:383. For grading II & III
materials, the CBR shall be determined at the density and moisture
content likely to be developed in equilibrium conditions which shall
be taken as being the density relating to a uniform air voids content of
5 percent.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.237 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
TABLE - 1 GRADING FOR CLOSE GRADED GRANULAR SUB-
BASE MATERIALS IS Sieve Designation Per cent by weight passing the IS Sieve
Grading - I Grading - II Grading - III 75.0 mm 100 -- -- 53.0 mm 80 - 100 100 -- 26.5 mm 55 - 90 70 - 100 100 9.50 mm 35 - 65 50 - 80 65 - 95 4.75 mm 22 - 55 40 - 65 50 - 80 2.36 mm 20 - 40 30 - 50 40 - 65 0.425 mm 10 - 25 15 - 25 20 - 35 0.075 mm 3 - 10 3 - 10 3 - 10
CBR Value (Minimum) 30 25 20
TABLE - 2 GRADING FOR COARSE GRADED GRANULAR SUB-
BASE MATERIALS IS Sieve Designation Per cent by weight passing the IS Sieve
Grading - I Grading - II Grading - III 75.0 mm 100 -- -- 53.0 mm 100 26.5 mm 55 - 75 50 - 80 100 9.50 mm 4.75 mm 10 - 30 15 - 35 25 - 45 2.36 mm 0.425 mm 0.075 mm <10 <10 <10
CBR Value (Minimum) 30 25 20
Note : The material passing 425 micron (0.425 mm) sieve for all the
three gradings when tested according to IS:2720 (Part-5) shall have
liquid limit and plasticity index not more than 25 and 6 percent
respectively.
5.3 Strength of sub-base :
It shall be ensured prior to actual execution that the material to be used
in the sub-base satisfies the requirements of CBR and other physical
requirements when compacted and finished.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.238 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
When directed by the Engineer, this shall be verified by performing
CBR tests in the laboratory as required on specimens remoulded at
field dry density and moisture content and any other tests for the
“quality” of materials, as may be necessary.
5.4 Construction Operations :
5.4.1 Preparation of subgrade : Immediately prior to the laying of sub-base,
the subgrade already finished to Clause 301 or 305 of MORT & H
Specification as applicable shall be prepared by removing all
vegetation and other extraneous matter, lightly sprinkled with water if
necessary and rolled with two passes of 80-100 kN smooth wheeled
roller.
5.4.2 Spreading and compacting : The sub-base material of grading
specified in the contract shall be spread on the prepared subgrade with
the help of a motor grader/JCB of adequate capacity, its blade having
hydraulic controls suitable for initial adjustment and for maintaining
the required slope and grade during the operation or other means as
approved by the Engineer.
When the sub-base material consists of combination of materials
mentioned in Clause 401.2.1 of MORT & H Specifications, mixing
shall be done at plant and shall be transported on site.
Manual mixing shall be permitted only where the width of laying is
not adequate for mechanical operations, as in small-sized jobs. The
equipment used for mix-in-place construction shall be a rotavator or
similar approved equipment capable of mixing the material to the
desired degree. If so desired by the Engineer, trial runs with the
equipment shall be carried out to establish its suitability for the work.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.239 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Moisture content of the loose material shall be checked in accordance
with IS:2720 (Part-2) and suitably adjusted by sprinkling additional
water from a truck mounted or trailer mounted water tank and suitable
for applying water uniformly and at controlled quantities to variable
widths of surface or other means approved by the Engineer so that, at
the time of compaction, it is from 1 percent above to 2 percent below
the optimum moisture content corresponding to IS:2720 (Part-8).
While adding water, due allowance shall be made for evaporation
losses. After water has been added, the material shall be processed by
mechanical or other approved means like disk horrows, rotavators
until the layer is uniformly wet.
Immediately thereafter, rolling shall start. If the thickness of the
compacted layer does not exceed 100 mm, a smooth wheeled roller of
80 to 100 kN weight may be used. For a compacted single layer upto
225 mm the compaction shall be done with the help of a vibratory
roller of minimum 80 to 100 kN static weight with plain drum or pad
footdrum or heavy pneumatic tyred roller of minimum 200 to 300 kN
weight having a minimum tyre pressure of 0.7 MN/m2 or equivalent
capacity roller capable of achieving the required compaction. Rolling
shall commence at the lower edge and proceed towards the upper edge
longitudinally for portions having unidirectional crossfall and
super-elevation and shall commence at the edges and progress towards
the centre for positions having crossfall on both sides.
Each pass of the roller shall uniformly overlap not less than one-third
of the track made in the preceding pass. During rolling, the grade and
crossfall (camber) shall be checked and any high spots or depressions,
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.240 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
which become apparent, corrected by removing or adding fresh
material. The speed of the roller shall not exceed 5 km. per hour.
Rolling shall be continued till the density achieved is at least 98
percent of the maximum dry density for the material determined as per
IS:2720 (Part-8). The surface of any layer of material on completion
of compaction shall be well closed, free from movement under
compaction equipment and from compaction planes, ridges, cracks or
loose material. All loose, segregated or otherwise defective areas shall
be made good to the full thickness of layer and re-compacted.
5.5 Surface Finish and Quality Control of Work :
The surface finish of construction shall conform to the requirements of
Clause 902 of MORT & H Specifications.
Control on the quality of materials and works shall be exercised by the
Engineer in accordance with Section 900.
5.6 Arrangements for Traffic :
During the period of construction, arrangement of traffic shall be
maintained in accordance with Clause 112 of MORT & H
Specifications.
5.7 Measurement for Payment :
Granular sub-base shall be measured as finished work in position in
cubic metres.
The protection of edges of granular sub-base extended over the full
formation as shown in the drawing shall be considered incidental to the
work of providing granular sub-base and as such no extra payment shall
be made for the same.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.241 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
5.8 Rate :
The contract unit rate for granular sub-base shall be payment in full
for carrying out the required operations including full compensation
for :
1) Making arrangements for traffic to Clause 112 of MORT & H
Specifications except for initial treatment to verges, shoulders
and construction of diversions;
2) Furnishing all materials to be incorporated in the work including
all royalties, fees, rents where necessary and all leads and lifts;
3) All labour, tools, equipment and incidentals to complete the
work to the specifications;
4) Carrying out the work in part widths of road where directed; and
5) Carrying out the required tests for quality control.
6.0 WET MIX MACADAM SUB-BASE/BASE :
6.1 SCOPE :
This work shall consist of laying and compacting clean, crushed,
graded aggregate and granular material, premixed with water, to a
dense mass on a prepared subgrade/sub-base/base or existing
pavement as the case may be in accordance with the requirements of
the specification. The material shall be laid in one or more layers as
necessary to lines, grades and cross sections shown on the approved
drawings or as directed by the Engineer.
The thickness of a single compacted Wet Mix Macadam layer shall
not be less than 75mm. When vibrating or other approved types of
compacting equipment are used, the compacted depth of a single
layer of the sub-base course may be increased to 200mm upon
approval of the Engineer.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.242 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
6.2 MATERIALS :
6.2.1 Physical requirement :
Coarse aggregates shall be crushed stone. If crushed gravel/shingle
is used not less than 90 percent by weight of the gravel/shingle
pieces retained on 4.75 mm sieve shall have at least two fractured
faces. The aggregates shall conform to the physical requirements set
forth in the following Table-1.
TABLE - 1
PHYSICAL REQUIREMENTS OF COARSE AGGREGATES FOR WET MIX MACADAM FOR BASE COURSES
SL. NO.
TEST TEST METHOD REQUIREMENTS
1. *Loss Angles Abrasion Value or
IS : 2386 (Part-IV) 40% Maximum
*Aggregate impact value IS : 2386 (Part-IV) or IS : 5640
30% Maximum
2. Combined flakiness and Elongation indices (total)
IS : 2386 (Part-I) 30% Maximum**
* Aggregates may satisfy requirements of either of the two tests.
** To determine this combined proportion, the flaky stone from a
representative sample should first be separated out. Flakiness index is weight of flaky stone metal divided by weight of stone sample. Only the elongated particles be separated out from the remaining (non-flaky) stone metal. Elongation index is weight of elongated particles divided by total non-flaky particles. The value of flakiness index and elongation index so found are added up.
6.2.2 Grading requirements :
The aggregates shall conform to the grading given below :
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.243 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
TABLE - 2 GRADING REQUIREMENTS OF AGGREGATES FOR WET
MIX MACADAM
SIEVE DESIGNATION PERCENT PASSING 53 mm 100 45 mm 95 - 100
26.5 mm - 22.4 mm 60 - 80 11.2 mm 40 - 60 4.75 mm 25 - 40 2.36 mm 15 - 30
600 microns 8 - 22 75 microns 0 - 8
Materials finer than 425 micron shall have Plasticity Index (PI)
not exceeding 6.
The final gradation approved within these limits shall be well graded
from coarse to fine and shall not vary from the low limit on one sieve
to the high limit on the adjacent sieve or vice versa.
6.2.3 Construction operation :
6.2.3.1 Preparation of Base :
Clause 404.3.1 of MORT & H shall apply.
6.2.3.2 Provision of lateral confinement of aggregates :
While constructing wet mix macadam, arrangement shall be made
for the lateral confinement of wet mix. This shall be done by laying
materials in adjoining shoulders along with that the wet mix
macadam layer and following the sequence of operations described
in Clause 407.4.1 of MORT & H.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.244 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
6.2.3.3 Preparation of mix :
Wet-mix macadam shall be prepared in an approved mixing plant of
suitable capacity having provision for controlled addition of water
and forced/positive mixing arrangement like pugmill or pan type
mixer of concrete batching plant. For small quantity of wet mix
work, the Engineer may permit the mixing to be done in concrete
mixers.
Optimum moisture for mixing shall be determined in accordance
with IS:2720 (Part-8) after replacing the aggregate fraction retained
on 22.4 mm sieve with material of 4.75 mm to 22.4 mm size. While
adding water, due allowance should be made for evaporation losses.
However, at the time of compaction, water in the wet mix should not
vary from the optimum value by more than agreed limits. The mixed
material should be uniformly wet and no segregation should be
permitted.
6.2.3.4 Spreading of mix :
Immediately after mixing, the aggregates shall be spread uniformly
and evenly upon the prepared subgrade/sub-base/base in required
quantities. In no case should these be dumped in heaps directly on
the area where these are to be laid nor shall their hauling over a
partly completed stretch be permitted.
The mix may be spread either by a motor grader or a paver finisher
or motor grader. For portions where mechanical means cannot be
used, manual means as approved by the Engineer shall be used.
The motor grade shall be capable of spreading the material uniformly
all over the surface. Its blade shall have hydraulic control suitable
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.245 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
for initial adjustments and maintaining the same so as to achieve the
specified slope and grade.
The paver finisher shall be self propelled having the following
features :
i) Moving hoppers and suitable distribution mechanism
ii) The screed shall have tamping and vibrating arrangement for
initial compaction to the layer as it is spread without rutting or
otherwise marring the surface profile.
iii) The paver shall be equipped with necessary control
mechanism so as to ensure that the finished surface is free
from surface blemishes.
The surface of the aggregate shall be carefully checked with
templates and all high or low spots remedied by removing or adding
aggregate as may be required. The layer may be tested by depth
blocks during construction. No segregation of large and fine
particles should be allowed. The aggregates as spread should be of
uniform gradation with no pockets of fine/coarse materials.
6.2.3.5 Compaction :
After mix have been laid to the required thickness, grade and cross
fall/camber, the same shall be uniformly compacted to the full depth
with suitable roller. If the thickness of single compacted layer does
not exceed 100mm, a smooth wheel roller of 80 to 100 kN weight
may be used. For a compacted single layer upto 200mm, the
compaction shall be done with the help of vibratory roller of
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.246 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
minimum static weight of 80 to 100 kN of equivalent capacity roller.
The speed of the roller shall not exceed 5 km./hr.
In portions having unidirectional cross fall/super elevation, rolling
shall commence from the lower edge and progress gradually towards
the upper edge. Thereafter roller should progress parallel to the
centre line of the road, uniformly overlapping each preceding track
by at least one third width until the entire surface has been rolled.
Alternate strips of the roller shall be terminated in stops at least 1 m.
away from any preceding stop.
In portions in camber, rolling should begin at the edge with the
roller running forward and backward until the edges have been
firmly compacted. The roller shall then progress gradually towards
the centre parallel to the centre line of the road uniformly
overlapping each of the preceding track by at least one third width
until the entire surface has been rolled.
Any displacement occurring as a result of reversing of the direction
of the roller or from any other cause shall be corrected at once as
specified and/or removed the made good.
Along forms, kerbs, walls or other places not accessible to the roller,
the mixture shall be thoroughly compacted with mechanical tampers
or a plate compactor. Skin patching of an area without scarifying
the surface to permit proper bonding of the added material shall not
be permitted.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.247 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Rolling should not be done when the sub-grade is soft or yielding or
when it causes a wave-like motion in the sub-base/base course or
sub-grade. If irregularities develop during rolling which exceed 12
mm when tested with a 3 metre straight edge, the surface should be
loosed and premixed material added or removed as required before
rolling again so as to achieve a uniform surface conforming to the
desired grade and cross fall. In no case should the use of unmixed
material be permitted to make up the depressions.
Rolling should be continued till the density achieved is at least 98%
of the maximum dry density for the material as determined by the
method outlined in IS:2720 (Part 8).
After completion, the surface of any finished layer should be well
closed, free from movement under compaction equipment or any
compaction planes, ridges, cracks and loose material. All loose,
segregated or otherwise defective areas shall be made good to the
full thickness of the layer and re-compacted.
6.2.3.6 Setting and drying :
After final compaction of wet mix macadam course, the road shall be
allowed to dry for 24 hours.
6.2.4 Opening to traffic :
Preferably no vehicular traffic of any kind should be allowed on the
finished wet-mix macadam surface till it has dried and the wearing
course laid.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.248 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
6.2.5 Surface Finish and Quality Control of work :
6.2.5.1 Surface evenness :
The surface finish of construction shall conform to the requirements
of Clause 902.
6.2.5.2 Quality control :
Control of the quality of materials and work shall be exercised by the
Engineer in accordance with Section 900 of M.O.R T. & H.
6.2.6 Rectification of Surface irregularity :
Where the traffic irregularity of the wet mix macadam course
exceeds the permissible tolerances or where the course is otherwise
defective due to sub-grade soil getting mixed with the aggregates, the
full thickness of the layer shall be scarified over the affected area, re-
shaped with added premixed material or removed and replaced with
fresh premixed material as applicable and re-compacted in
accordance with Clause 406.3. The area treated in the aforesaid
manner shall not be less than 5 m. long and 2 m. wide. In no case
shall depressions be filled up with unmixed and ungraded material or
fines.
6.2.7 Arrangement for traffic :
During the period of construction, arrangement of traffic shall be
done as per Clause 112.
6.2.8 Measurement for payment :
Wet mix macadam shall be measured as finished work in position in
cubic metres.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.249 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
6.2.9 Rates :
The contract unit rate for wet mix macadam shall be payment in full
for carrying out the required operations including full compensation
for all components listed Clause 401.8.
7.0 PRIME COAT OVER GRANULAR BASE
7.1 SCOPE :
This work shall consist of application of a single coat of low viscosity
liquid bituminous material to a porous granular surface preparatory to
the superimposition of bituminous treatment or mix.
7.2 MATERIALS :
7.2.1 Primer : The choice of a bituminous primer shall depend upon the porosity
characteristics of the surface to be primed as classified in IRC : 16.
These are :
i) Surfaces of low porosity; such as wet mix macadam and water
bound macadam
ii) Surfaces of medium porosity; such as cement stabilized soil
base
iii) Surfaces of high porosity; such as a gravel base.
7.2.2 Primer viscosity :
The type and viscosity of the primer shall comply with the
requirements of IS 8887, as sampled and tested for bituminous
primer in accordance with theses standards. Guidance on viscosity
and rate of spray is given in Table – 1.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.250 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
TABLE - 1 VISCOSITY REQUIREMENT AND QUANTITY OF LIQUID
BITUMINOUS PRIMER
Types of surface Kinematic Viscosity of Primer at 600C (Centistokes)
Quantity of Liquid Bituminous Material per 10 sq.m. (Kg.)
Low porosity 30 – 60 6 to 9 Medium porosity 70 – 140 9 to 12
High porosity 250 – 500 12 to 15
7.2.3 Choice of primer :
The primer shall be bitumen emulsion, complying with IS 8887 of a
type and grade as specified in the contract or as directed by the
Engineer. The use of medium curing cutback as per IS 217 shall be
restricted only for sites at sub-zero temperatures or for emergency
applications as directed by the Engineer.
7.3 WEATHER AND SEASONAL LIMITATIONS :
Bituminous primer shall not be applied to a wet surface or during dust
storm or when the weather is foggy, rainy or windy or when the
temperature in the shade is less than 100C. Surfaces which are to
receive emulsion primer should be damp, but no free or standing water
shall be present.
7.4 CONSTRUCTION :
7.4.1 Equipment :
The primer distributor shall be a self- propelled or towed bitumen
pressure sprayer equipped for spraying the material uniformly at
specified rates and temperatures. Hand spraying of small areas,
inaccessible to the distributor, or in narrow strips shall be sprayed
with a pressure hand sprayer, or as directed by the Engineer.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.251 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
7.4.2 Preparation of road surface :
The surface to be primed shall be prepared in accordance with Clause
501.8 and 902 of MORT & H (Fourth Revision) as appropriate.
Immediately prior to applying the primer the surface shall be carefully
swept clean of dust and loose particles, care being taken not to disturb
the interlocked aggregate. This is best achieved when the surface layer
is slightly moist (lightly sprayed with water and the surface allowed do
dry) and the surface should be kept moist until the primer is applied.
7.4.3 Application of bituminous primer :
The viscosity and rate of application of the primer shall be as
specified in the contract or as determined by site trials carried out as
directed by the Engineer. Where a geosynthetic is proposed for use,
the requirements of Clauses 703.3.2 & 703.4 of MORT&H
specifications shall apply. The bituminous primer shall be sprayed
uniformly in accordance with Clause 501 of MORT & H
specifications. The method of application of the primer will depend
on the type of equipment to be used, size of nozzles, pressure at the
spray bar and speed of forward movement. The contractor shall
demonstrate at a spraying trial, that the equipment and method to be
used is capable of producing a uniform spray, within the tolerances
specified. The bitumen sprayer shall have a flow meter arrangement
(duly calibrated) for measurement / rate of spraying and
reconciliation of material.
7.4.4 Curing of primer and opening to traffic :
A primed surface shall be allowed to cure for at least 24 hours or
such other period as is found to be necessary to allow all the volatiles
to evaporate before any subsequent surface treatment or mix is laid.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.252 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Any unabsorbed prime shall first be blotted with an application of
sand, using the minimum quality possible. A primed surfaces shall
not be opened to traffic other than that necessary to lay the next
course. A very thin layer of clean san may be applied to the surface
of the primer, to prevent the primer picking up under the wheels of
the paver and the trucks delivering bituminous material to the paver.
7.4.5 Tack coat :
Over the primed surface , a tack coat should be applied in accordance
with Clause 503 of MORT & H (Fourth Revision).
7.5 QUALITY CONTROL OF WORK :
For control of the quality of materials supplied and the works carried
out, the relevant provisions of Section 900 of MORT & H (Fourth
Revision) shall apply.
7.6 ARRANGEMENTS FOR TRAFFIC :
During construction operations, arrangement for traffic shall be made
in accordance with the provisions of Clause 112 of MORT & H
Specifications.
7.7 MEASUREMENT OF PAYMENT :
Prime coat shall be measured in terms of surface area of application in
square metres.
7.8 RATE :
The contract unit rate for prime coat with adjustments as described in
Clause 502.7 of MORT & H shall be payment in full for carrying out
the required operations including full compensation for all
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.253 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
components listed in Clause 401.8 (i) to (v) of MORT&H
Specifications and as applicable to the work specified in these
specifications. Payment shall be made on the basis of the provision
of primer coat at an application of rate 0.6 kg. per square metre.
8.0 TACK COAT
8.1 SCOPE
This work shall consist of application of a single coat liquid
bituminous material (60/70 grade) to an existing road surface
preparatory to the superimposition of a bituminous mix, when
specified in the contract or instructed by the Engineer.
8.2 MATERIALS
Binder
The binder used for tack coat shall be a bitumen of 60 / 70 grade as
specified in the contract or as directed by the Engineer.
8.3 WEATHER AND SEASONAL LIMITATIONS
Bituminous material shall not be applied to a wet surface or during a
dust storm or when the weather is foggy, rainy or windy or when the
temperature in the shade is less than 100C. Where the tack coat
consists of emulsion, the surface shall be slightly damp, but not wet.
Where the tack coat is of cutback bitumen, the surface shall be dry.
8.4 CONSTRUCTION
8.4.1 Equipment
The tack coat distributor shall be a self propelled or towed bitumen
pressure sprayer, equipped for spraying the material uniformly at a
specified rate. Hand spraying of small areas, inaccessible to the
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.254 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
distributor, or in narrow strips, shall be sprayed with a pressure hand
sprayer, or as directed by the Engineer.
8.4.2 Preparation of base
The surface on which the tack coat is to be applied shall be clean and
free from dust, dirt and any extraneous material, and be otherwise
prepared in accordance with the requirements. Immediately before the
application of the tack coat, the surface shall be swept clean with a
mechanical broom, and high pressure air jet, or by other means as
directed by the Engineer.
8.4.3 Application of tack coat
The application of tack coat shall be at the rate specified in the
contract, and shall be applied uniformly. The method of application of
the tack coat will depend on the type of equipment to be used, size of
nozzles, pressure at the spray bar, and speed of forward movement.
The contractor shall demonstrate at a spraying trial, that the equipment
and method to be used is capable of producing a uniform spray, within
the tolerances specified.
Where the material to receive an overlay is a freshly laid bituminous
layer, that has not been subjected to traffic, or contaminated by dust, a
tack coat is not mandatory where the overlay is complete within two
days.
8.5 QUALITY CONTROL OF WORK
For control of the quality of materials supplied and the works carried
out, the relevant provisions of Section 900 of MORT & H
specifications (Fourth Revision) shall apply.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.255 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
8.6 ARRANGEMENTS FOR TRAFFIC
During the period of construction, the arrangements for traffic shall be
made in accordance with the provisions of Clause 112 of MORT & H
specifications (Fourth Revision).
8.7 MEASUREMENT FOR PAYMENT
Tack coat shall be measured in terms of surface area of application in
square metres.
8.8 RATE
The contract unit rate for tack coat shall be payment in full for
carrying out the required operations and as applicable to the work
specified in these specifications. The rate shall cover the provision of
tack coat as per Schedule “A”.
9.0 BITUMINOUS BOUND MACADAM
Providing and laying bituminous bound macadam surface in 75 mm
thickness including supplying all materials, spreading 40 mm and 20
mm trap metal layers, heating and spraying bitumen at the rate 250
kg./100 sq.m. and spreading 12 mm size key aggregates excluding
providing and applying tack coat at the rate of 10 kg./10 sqm. using
60-70 grade bitumen and compaction with vibratory roller etc.
complete.
9.1 GENERAL :
The work consist of supply of all materials and labour required for
providing and laying bituminous bound macadam surface for
compacted thickness of 75 mm. This item includes preparing the
existing road surface to receive the bituminous bound macadam
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.256 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
course i.e. application of tack coat, spreading of 40 mm size metal
layers in required thickness with compaction with vibratory roller,
spreading 20 mm thick, compaction with vibratory roller, heating and
spreading bitumen with equipment plant etc. Spreading key
aggregates 12 mm chips and final compaction with vibratory roller
etc. complete. The work shall be finished in accordance with the
requirements of this specification in close conformity with grades,
lines, cross sections and thickness as per approved drawing or as
directed by the Engineer.
9.2 MATERIALS :
9.2.1 Bitumen :
The bitumen shall be paving bitumen or suitable penetration grade
within the range S-35 to S-65 or A-35 to A-65 (30/40 to 60/70) as per
Indian Standard Specifications for “paving bitumen” IS:73-1962. The
actual grade of bitumen to be used shall be decided by the Engineer,
appropriate to the region, traffic, rainfall and other environmental
conditions.
9.3 AGGREGATES :
The aggregate shall comprise of 40 mm size & broken stone satisfying
standard specification clause Rd.22.3.2, Page 201 of edition 1979, 20
mm size & 12 mm size crush aggregate satisfying standard
specifications clause Rd.41.3.2, Page 216 of edition 1979 for
respective size of crush metal. The aggregate shall be free from
disintegrated pieces, organic or other deleterious set for in table 500/4
of Ministry of Surface Transport's specifications for Road & Bridges
edition June 1992.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.257 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
9.4 PROPORTIONING OF MATERIALS :
The quantities of aggregates and bitumen required for the work of
75mm compacted bituminous bound macadam is detailed below :
a) 40mm size hand broken metal 9.00 cum. per 100sq.mt.
b) 20mm size crushed metal 1.50 cum. per 100 sq.mt.
c) 12mm size crushed metal 1.80 cum. per 100 sq.mt.
d) Bitumen 250 kg. per 100 sq.mt.
9.5 PREPARATION OF BASE :
The road surface shall be swept clean of all dirt, dust and other loose
and foreign matter. The work shall be performed on such widths and
lengths as directed by Engineer and may require scarifying of existing
layer, filling of pot holes etc. The edge lines may be marked with
stakes (formed of murum or metal 25 cm 30 cm width).
Tack Coat
The tack coat over cleaned surface shall be applied with mechanical
sprayer with flow meter attachment.
9.6 SPREADING AND COMPACTION :
9.6.1 Spreading of 40mm size metal :
40mm size hand broken metal shall be spread evenly at the rate of 9
Cum per 100 sq.mt. of area so as to form uniform layer over the width
of road specified on plan any foreign matter, organic matter, dust
grades etc. shall be remove immediately. The sections shall be
checked with camber board, straight edge batten etc. Any irregularities
shall be made good by adding aggregates in case of depressions and
removing aggregates from high spots.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.258 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Compacting of 40mm size metal :
The surface of 40mm metal layer after brought to necessary grades
and sections shall be rolled with the use of 8 to 10 tons power roller.
Rolling shall commence from the edges and progress towards the
centre longitudinally except on super elevated portion it shall progress
from the lower to upper edge parallel to the center line of pavement.
When the roller has passed over the whole area as prepared once, any
high spots or depressions which become apparent shall be corrected
by removing or adding aggregates. The rolling shall then continued
till the entire surface has been rolled to desired compaction such that
there is no crushing of aggregates and all roller marks have been
eliminated. The each pass of roller shall uniformly overlap not less
than one third of the track made in the preceding pass.
9.6.2 Spreading of 20mm size metal :
20mm size crushed metal shall be evenly spread at the rate of 1.5
cubic metres per 100 sq.mt. of area over the 40mm size hand broken
metal compacted.
9.6.3 Compaction after spreading of 20mm size metal :
The surface of 20mm metal layer after brought to necessary grades
and sections shall be rolled with the use of 8 to 10 tons vibro roller.
Rolling shall commence from the edges and progress towards the
centre longitudinally except on super edge parallel to centre line of
pavement. When the roller has passed over the whole area as prepared
once, any high spots or depressions which become apparent shall be
corrected by removing or adding aggregate. The rolling shall then
continued till the entire surface has been rolled to desired compaction
such that there is no crushing of aggregates and all roller marks have
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.259 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
been eliminated. The each pass of roller shall uniformly overlap not
less than one-third of the track made in the preceding pass.
9.6.4 Bitumen application :
Bitumen to be used shall be got approved from Engineer. Bitumen of
I.S. grade S-65 needs heating to a temperature range between 177
degrees to 191 degrees. Bitumen other than grade I.S. S-65 shall be
heated to a temperature appropriate to that grade. Bitumen shall be
applied through a pressure sprayer with flow meter attachment
uniformly at the rate of 250 kg. per 100 sq.mt. To ensure correct
application of bitumen being sprayed, known dimensioned area be
checked for use of bitumen and accordingly dosage may be increased
or decreased as the case may be.
9.6.5 Key aggregates :
On completion of bitumen application, 12mm size key aggregates
shall be spread immediately at a uniform rate of 1.8 Cum per 100
sq.mt. of area when entire surface is in hot condition. Brooms shall be
used to ensure even distribution of key aggregate.
9.6.6 Final Compaction :
Immediately after spraying of bitumen and spreading of key
aggregates the surface shall be rolled with a power roller to obtain full
compaction and to force the blindage of key aggregates in to the
interstices of the course aggregate. The rolling shall continue till the
asphalted surface hardens and key aggregates stop moving under
power roller.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.260 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
9.7 SURFACE FINISH AND QUALITY CONTROL :
The surface finish shall conform to requirements of clause 902 of
specification for Roads and Bridges by Ministry of Road Transport &
Highways. Quality control test and their frequencies shall be as per
table 900-3 of specification for Roads and Bridges by Ministry of
Road Transport & Highways.
9.8 ARRANGEMENT OF TRAFFIC :
During the period of execution, arrangement of traffic shall be carried
out according to the Clause 112 (excluding past para of 112.6) of
specification for Roads and Bridges by Ministry of Road Transport &
Highways.
9.9 ITEM TO INCLUDE :
1) Labour and materials required for preparing surface.
2) Supplying and spreading and compaction of 40mm hand broken
size metal and 20mm crushed metal.
3) Supplying, heating and spraying of bitumen.
4) Supplying and spreading and compaction of 12mm crushed metal.
9.10 MODE OF MEASUREMENT AND PAYMENT :
The contract unit rate for finished work of bituminous bound
macadam is in full for carrying out all operations. The finished work
shall be measured in square metres.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.261 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
11.0 DRY LEAN CEMENT CONCRETE SUB-BASE
11.1 SCOPE
11.1.1 The work shall consist of construction of dry lean concrete sub-base
for cement concrete pavement in accordance with the requirements
of these Specifications and in conformity with the lines, grades and
cross-sections shown on the drawings or as directed by the Engineer.
The work shall include furnishing of all plant and equipment,
materials and labour and performing all operations, in connection
with the work, as approved by the Engineer.
11.1.2 The design parameters of dry lean concrete sub-base, viz., width,
thickness, grade of concrete, details of joints, if any etc. shall be as
stipulated in the Contract drawings.
11.2 MATERIALS
11.2.1 Source of Materials: The Contractor shall indicate to the Engineer
the source of all materials with relevant test data to be used in the
concrete work sufficiently in advance and the approval of the
Engineer for the same shall be obtained at least 45 days before the
scheduled commencement of the work. If the Contractor later
proposes to obtain the materials from a different source, he shall
notify the Engineer for his approval at least 45 days before such
materials are to be used.
11.2.2 Cement: Any of the following types of cement may be used with
prior approval of the Engineer:
i) Ordinary Portland Cement IS : 269
ii) Portland Slag Cement IS : 455
iii) Portland Pozzolana Cement IS : 1489
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.262 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
If the subgrade is found to consist of soluble sulphates in a
concentration more than 0.5 percent, cement used shall be sulphate
resistant and shall conform to IS : 6909.
Cement to be used may preferably be obtained in bulk form. It shall
be stored in accordance with stipulations contained in Clause 1014 of
MORT&H and shall be subjected to acceptance test prior to its
immediate use.
11.2.3 Aggregates:
11.2.3.1 Aggregates for lean concrete shall be natural material complying
with IS : 383. The aggregates shall not be alkali reactive. The limits
of deleterious materials shall not exceed the requirements set out in
IS : 383. In case the Engineer considers that the aggregates are not
free from dirt, the same may be washed and drained for at least 72
hours before batching, as directed by the Engineer.
11.2.3.2 Coarse aggregate: Coarse aggregate shall consist of clean, hard,
strong, dense, non-porous and durable pieces of crushed stone or
crushed gravel and shall be devoid of pieces of disintegrated stone,
soft, the flaky, elongated, very angular or splintery pieces. The
maximum size of the coarse aggregate shall be 25mm. The coarse
aggregate shall comply with Clause 602.2.4.2 of MORT&H.
11.2.3.3 Fine aggregate: The fine aggregate shall consist of clean natural
sand or crushed stone sand or a combination of the two and shall
conform to IS : 383. Fine aggregate shall be free from soft particles,
clay, shale, loam, cemented particles, mica, organic and other foreign
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.263 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
matter. The fine aggregate shall comply with Clause 602.2.4.3 of
MORT&H.
11.2.3.4 The coarse and fine aggregates may be obtained in either of the
following manner:
i) In separate nominal sizes of coarse and fine aggregates and
mixed together intimately before use.
ii) Separately as 25mm nominal single sizes, 12.5 mm nominal
size graded aggregates and fine aggregate of crushed stone dust
or sand or a combination of these two.
The material after blending shall conform to the grading as indicated
in Table 600-1.
TABLE 600-1
AGGREGATE GRADATION FOR DRY LEAN CONCRETE
Sieve Designation Percentage passing the sieve by weight
26.50
19.00
9.50
4.75
600.00
75.00
mm
mm
mm
mm
micron
micron
100
80-100
55-75
35-60
10-35
0-8
11.2.4 Water: Water used for mixing and curing of concrete shall be clean
and free from injurious amounts of oil, salt, acid, vegetable matter or
other substances harmful to the finished concrete. It shall meet the
requirements stipulated in IS : 456.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.264 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
11.2.5 Storage of Materials: All materials shall be stored in accordance
with the provisions of clause 1014 of MORT&H specifications and
other relevant IS Specifications. All efforts must be made to store
the materials in proper places so as to prevent their deterioration or
contamination by foreign matter and to ensure their satisfactory
quality and fitness for use in the work. The storage place must also
permit easy inspection, removal and storage of materials. All such
materials even though stored in approved godowns must be subjected
to acceptance test immediately prior to their use. The requirement of
storage yard specified in Clause 602.2.9 of MORT&H shall also be
applicable.
11.3 PROPORTIONING OF MATERIALS FOR THE MIX
11.3.1 The mix shall be proportioned with a maximum aggregate cement
ratio of 15 : 1. The water content shall be adjusted to the optimum as
per Clause 601.3.2 of MORT&H for facilitating compaction by
rolling. The strength and density requirements of concrete shall be
determined in accordance with Clause 601.6 of MORT&H by
making trial mixes.
11.3.2 Moisture content: The right amount of water for the lean concrete
in the main work shall be decided so as to ensure full compaction
under rolling and shall be assessed at the time of rolling the trial
length. Too much water will cause the lean concrete to be heaving
up before the wheels and picked up on the wheels of the roller and
too little will lead to inadequate compaction, a low in-situ strength
and an open-textured surface.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.265 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
The optimum water content shall be determined and demonstrated by
rolling during trial length construction and the optimum moisture
content and degree of compaction shall be got approved from the
Engineer. While laying in the main work, the lean concrete shall
have a moisture content between the optimum + 2 percent, keeping
in view the effectiveness of compaction achieved and to compensate
for evaporation losses.
11.3.3 Cement content: The minimum cement content in the lean concrete
shall not be less than 150 kg/cu.m. of concrete. If this minimum
cement content is not sufficient to produce concrete of the specified
strength, it shall be increased as necessary without additional cost
compensation to the Contractor.
11.3.4 Concrete strength: The average compressive strength of each
consecutive group of 5 cubes made in accordance with Clause
903.5.1.1 of MORT&H shall not be less than 10 MPa at 7 days. In
addition, the minimum compressive strength of any individual cube
shall not be less than 7.5 MPa at 7 days. The design mix complying
with the above Clauses shall be got approved from the Engineer and
demonstrated in the trial length construction.
11.4 SUBGRADE
The subgrade shall conform to the grades and cross sections shown
on the drawings and shall be uniformly compacted to the design
strength in accordance with these Specifications and Specification
stipulated in the Contract. The lean concrete sub-base shall not be
laid on a subgrade softened by rain after its final preparation; surface
trenches and soft spots, if any, must be properly back filled and
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.266 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
compacted to avoid any weak or soft spot. As far as possible, the
construction traffic shall be avoided on the prepared subgrade. A
day before placing of the sub-base, the subgrade surface shall be
given a fine spray of water and rolled with one or two passes of a
smooth wheeled roller after a lapse of 2-3 hours in order to stabilise
loose surface. If Engineer feels it necessary, another fine spray of
water may be applied just before placing sub-base.
11.5 CONSTRUCTION
11.5.1 General: The pace and programme of the lean concrete sub-base
construction shall be matching suitably with the programme of
construction of the cement concrete pavement over it. The sub-base
shall be overlaid with cement concrete pavement only after 7 days
after sub-base construction.
11.5.2 Batching and Mixing: The batching plant shall be capable of
proportioning the materials by weight, each type of material being
weighed separately in accordance with Clause 602.9.3.2 of
MORT&H. The cement from the bulk stock shall be weighed
separately from the aggregates. The capacity of batching and mixing
plant shall be at least 25 percent higher than the proposed capacity
for the laying arrangements. The batching and mixing shall be
carried out preferably in a forced action central batching and mixing
plant having necessary automatic controls to ensure accurate
proportioning and mixing. Other types of mixers shall be permitted
subject to demonstration of their satisfactory performance during the
trial length. The type and capacity of the plant shall be got approved
by the Engineer before commencement of the trial length. The
weighing balances shall be calibrated by weighing the aggregates,
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.267 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
cement, water and admixtures physically either by weighing with
large weighing machine or in a weigh bridge. The accuracy of
weighing scales of the batching plant shall be within ± 2 per cent in
the case of aggregates and ± 1 per cent in the case of cement and
water.
The design features of Batching Plant should be such that the shifting
operations of the plant will not take very long time when they are to
be shifted from place to place with the progress of the work.
11.5.3 Transporting: Plant mix lean concrete shall be discharged
immediately from the mixer, transported directly to the point where
it is to be laid and protected from the weather by covering the
tippers/ dumpers with tarpaulin during transit. The concrete shall be
transported by tipping trucks, sufficient in number to ensure a
continuous supply of material to feed the laying equipment to work
at a uniform speed and in an uninterrupted manner. The lead of the
batching plant to paving site shall be such that the travel time
available from mixing to paving as specified in Clause 601.5.5.2 of
MORT&H will be adhered to.
11.5.4 Placing: Lean concrete shall be laid/placed by a paver with
electronic sensor. The equipment shall be capable of laying the
material in one layer in an even manner without segregation, so that
after compaction the total thickness is as specified. The paving
machine shall have high amplitude tamping bars to give good initial
compaction to the sub-base.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.268 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
The laying of the two-lane road sub-base may be done either in full
width or lane by lane. Preferably the lean concrete shall be placed
and compacted across the full width of the road, by constructing it in
one go or in two lanes running forward simultaneously. Transverse
and longitudinal construction joints shall be staggered by 500-1000
mm and 200-400 mm respectively from the corresponding joints in
the overlaying concrete slabs.
11.5.6 Compaction
11.5.6.1 The compaction shall be carried out immediately after the material is
laid and levelled. In order to ensure thorough compaction which is
essential, rolling shall be continued on the full width till there is no
further visible movement under the roller and the surface is closed.
The minimum dry density obtained shall be 97 per cent of that
achieved during the trial length construction vide Clause 11.7. The
densities achieved at the edges i.e. 0.5 m from the edge shall not be
less than 95 per cent of that achieved during the trial construction
vide Clause 11.7.
11.5.6.2 The spreading, compacting and finishing of, the lean concrete shall
be carried out as rapidly as possible and the operation shall be so
arranged as to ensure that the time between the mixing of the first
batch of concrete in any transverse section of the layer and the final
finishing of the same shall not exceed 90 minutes when the concrete
temperature is above 25 and below 30 degree Celsius and 120
minutes if less than 25 degree Celsius. This period may be reviewed
by the Engineer in the light of the results of the trial run but in no
case shall it exceed 2 hours. Work shall not proceed when the
temperature of the concrete exceeds 30 degree Celsius. If necessary,
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.269 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
chilled water or addition of ice may be resorted to for bringing down
the temperature. It is desirable to stop concreting when the ambient
temperature is above 35°C. After compaction has been completed,
roller shall not stand on the compacted surface for the duration of the
curing period except during commencement of next day's work near
the location where work was terminated the previous day.
11.5.6.3 Double drum smooth-wheeled vibratory rollers of minimum 80 to
100 kN static weight are considered to be suitable for rolling dry lean
concrete. In case any other roller is proposed, the same shall be got
approved from the Engineer, after demonstrating its performance.
The number of passes required to obtain maximum compaction
depends on the thickness of the lean concrete, the compatibility of
the mix, and the weight and type of the roller etc., and the same as
well as the total requirement of rollers for the job shall be determined
during trial run by measuring the in-situ density and the scale of the
work to be undertaken.
11.5.6.4 In addition to the number of passes required for compaction there
shall be a preliminary pass without vibration to bed the lean concrete
down and again a final pass without vibration to remove roller marks
and to smoothen the surface.
Special care and attention shall be exercised during compaction near
joints, kerbs, channels, side forms and around gullies and manholes.
In case adequate compaction is not achieved by the roller at these
points, use of plate vibrator shall be made, if so directed by the
Engineer.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.270 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
11.5.6.5 The final lean concrete surface on completion of compaction and
immediately before overlaying, shall be well closed, free from
movement under roller and free from ridges, low spots, cracks, loose
material, pot holes, ruts or other defects. The final surface shall be
inspected immediately on completion and all loose, segregated or
defective areas shall be corrected by using fresh lean concrete
material laid and compacted as pet. Specification. For repairing
honeycombed surface, concrete with aggregates of size 10 mm and
below shall be spread and compacted. It is necessary to check the
level of the rolled surface for compliance. Any level / thickness
deficiency should be corrected after applying concrete with
aggregates of size 10 mm and below after roughening the surface.
Similarly the surface regularity also should be checked with 3m
straight edge. The deficiency should be made up with concrete with
aggregates of size 10 mm and below.
11.5.6.6 Segregation of concrete in the dumpers shall be controlled by
premixing each fraction of the aggregates before loading in the bin of
the batching plant, by moving the dumper back and forth while
discharging the mix on it and other means. Even paving operation
shall be such that the mix does not segregate.
11.5.7 Joints: Contraction and longitudinal joints shall be provided as per
the drawing.
At longitudinal or transverse construction joints, unless vertical
forms are used, the edge of compacted material shall be cut back to a
vertical face where the correct thickness of the properly compacted
material has been obtained.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.271 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
11.5.8 Curing: As soon as the lean concrete surface is compacted, curing
shall commence. One of the following two methods shall be adopted:
(a) The initial curing shall be done by spraying with liquid curing
compound. The curing compound shall be white pigmented or
transparent type with water retention index of 90 per cent when
tested in accordance with BS 7542. Curing compound shall be
sprayed immediately after rolling is complete. As soon as the
curing compound has lost its tackiness, the surface shall be
covered with wet hessian for three days.
(b) Curing shall be done by covering the surface by gunny bags /
hessian, which shall be kept continuously moist for 7 days by
sprinkling water.
11.6 TRIAL MIXES
The Contractor shall make trial mixes of dry lean concrete with
moisture contents like 5.0, 5.5, 6.0, 6.5 and 7.0 per cent using cement
content specified and the specified aggregate grading but without
violating the requirement of aggregate-cement ratio specified in
Clause 11.3.1. Optimum moisture and density shall be established
by preparing cubes with varying moisture contents. Compaction of
the mix shall be done in three layers with vibratory hammer fitted
with a square or rectangular foot as described in Clause 903.5.1.1 of
MORT&H. After establishing the optimum moisture, a set of six
cubes shall be cast at that moisture for the determination of
compressive strength on the 3rd and the seventh day. Trial mixes
shall be repeated if the strength is not satisfactory either by
increasing cement content or using higher grade of cement. After the
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.272 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
mix design is approved, the Contractor shall construct a trial section
in accordance with Clause 11.7.
If during the construction of the trial length, the optimum moisture
content determined as above is found to be unsatisfactory, the
Contractor may make suitable changes in the moisture content to
achieve a satisfactory mix. The cube specimens prepared with the
changed moisture content should satisfy the strength requirement.
Before production of the mix, natural moisture content of the
aggregate should be determined on a day-to-day basis so that the
moisture content could be adjusted. The mix finally designed should
neither stick to the rollers nor become too dry resulting in ravelling
of surface.
11.7 TRIAL LENGTH
11.7.1 The trial length shall be constructed at least 14 days in advance of
the proposed date of commencement of work. At least 30 days prior
to the construction of the trial length, the Contractor shall submit for
the Engineer's approval a "Method Statement" giving detailed
description of the proposed materials, plant, equipment, mix
proportion, and procedure for batching, mixing, laying, compaction
and other construction procedures. The Engineer shall also approve
the location and length of trial construction which shall be a
minimum of 60 m length and for full width of the pavement. The
trial length shall contain the construction of at least one transverse
construction joint involving hardened concrete and freshly laid sub-
base. The construction of trial length will be repeated till the
Contractor proves his ability to satisfactorily construct the sub-base.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.273 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
11.7.2 In order to determine and demonstrate the optimum moisture content
which results in the maximum dry density of the mix compacted by
the rolling equipment and the minimum cement content that is
necessary to achieve the strength stipulated in the drawing, trial
mixes shall be prepared as per Clause 11.6.
11.7.3 After the construction of the trial length, the in-situ density of the
freshly laid material shall be determined by sand replacement
method with 20 cm dia density cone. Three density holes shall be
made at locations equally spaced along a diagonal that bisects the
trial length; average of these densities shall be determined. These
main density holes shall not be made in the strip 50 cm from the
edges. The average density obtained from the three samples
collected shall be the reference density and is considered as 100 per
cent. The field density of regular work will be compared with this
reference density in accordance with Clauses 11.5.5.1 of Particular
Specifications and 903.5.1.2 of MORT&H. A few cores may be cut
as per the instructions of the Engineer to check segregation or any
other deficiency.
11.7.4 The hardened concrete shall be cut over 3 m width and reversed to
inspect the bottom surface for any segregation taking place. The trial
length shall be constructed after making necessary changes in the
gradation of the mix to eliminate segregation of the mix. The lower
surface shall not have honey-combing and the aggregates shall not be
held loosely at the edges.
11.7.5 The trial length shall be outside the main works. The main work
shall not start until the trial length has been approved by the
Engineer. After approval has been given, the materials, mix
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.274 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
proportions, moisture content, mixing, laying, compaction plant and
construction procedures shall not be changed without the approval of
the Engineer.
11.8 TOLERANCES FOR SURFACE REGULARITY, LEVEL,
THICKNESS, DENSITY AND STRENGTH
The tolerances for surface regularity, level, thickness, density and
strength shall conform to the requirements given in Clause 903.5 of
MORT&H. Control of quality of materials and works shall be
exercised by the Engineer in accordance with Section 900 of
MORT&H.
11.9 TRAFFIC
No heavy commercial vehicles like trucks and buses shall be permit-
ted on the lean concrete sub-base after its construction. Light
vehicles if unavoidable may, however, be allowed after 7 days of its
construction with prior approval of the Engineer.
11.10 MEASUREMENTS FOR PAYMENT
The unit of measurement for dry lean concrete pavement shall be the
cubic metre of concrete placed, based on the net plan areas for the
specified thickness shown on the drawings or as directed by the
Engineer.
11.11 RATE
The Contract unit rate payable for dry lean concrete sub-base shall be
payment in full for carrying out the required operations including full
compensation for all labour, materials and equipment, mixing, trans-
port, placing, compacting, finishing, curing, testing and incidentals to
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.275 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
complete the work as per Specifications, all royalties, fees, storage
and rents where necessary and all leads and lifts.
12.0 CRACK RELIEF LAYER
12.1 Scope
The item provides for providing and laying crack relief layer which
is a very open graded asphalt concrete of 50 to 100 mm thickness
consisting 20% to 30% interconnecting air voids consisting of coarse
and fine aggregates premixed with a bitumen binder (PMB-40) in a
hot mix asphalt plant, laid immediately after mixing with sensor
paver on a base prepared previously in accordance with the
requirements of these specifications and in conformity with the lines,
grades and cross-section shown on the drawing or as directed by
Engineer and including compaction with 8 to 10 tonnes dual drum
steel roller.
12.2 Materials
12.2.1 Binder
The binder shall be with 2.5% to 4.0% PMB-40 (Polymer Modified
Bitumen – 40) manufactured by M/s. Ooms Avenhorn Holding India
Pvt. Ltd. under brand name “Sealoflex”, by conversion of 60/70
bitumen with modifier with SBS Polymer and stabilizer in
appropriate dose in manufacturer’s plant, necessary test etc.
complete. The PMB-40 shall be as per SP 53 : IRC : 202 and IS :
15462 : 2004.
12.2.2 Coarse Aggregate
The gradation of coarse aggregate shall conform to Clause No.
507.2.2 of MORT&H specifications, 2001 for Roads & Bridge
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.276 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
works. The aggregates shall consist of crushed stone, crushed
Gravel/shingle or other stones retained on 2.36mm sieve. They shall
be clean, strong, durable of fairly cubical shape and free from
disintegrated pieces, organic or other deleterious matters and
adherent coating. The aggregates shall preferably be hydrophobic
and of low porosity. If hydrophilic aggregates are to be used, the
bitumen shall preferably be treated with anti stripping agents of
approved quality in suitable doses without any additional cost.
Where crushed gravel is proposed for use as aggregate, not less than
90% by weight of the crushed material retained on the 4.75 mm sieve
shall have at least tow fractured faces.
The aggregate shall satisfy the physical requirements as given in
Table 500-17 of MORT & H specifications except that the maximum
values for the water absorption be 1%.
12.2.3 Fine Aggregate :
The gradation of fine aggregate shall conform to Clause 507.2.3 of
MORT&H specifications, 2001 for Roads and Bridge works. Fine
aggregate shall be the fraction passing 2.36 mm sieve and retained on
75 microns sieve, consisting of crusher runs screenings, natural sand
or as mixture of both. These shall be clean, hard, durable, uncoated
dry and free from any injurious, soft or flaky pieces and organic or
other deleterious substances.
The fine aggregate shall have a sand equivalent value of not less than
50 when tested in accordance with the requirements of IS:2720 (part
37)
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.277 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
The plasticity index of the fraction passing the 0.425mm sieve shall
not exceed 4, when tested in accordance with IS:2720 (part 5).
12.2.4 Filler :
Filler shall consist of finely divided mineral matter such as rock-dust,
hydrated lime or cement as approved by the Engineer.
The mineral filler requirements shall be according to Clause 507.2.4
of MORT&H specifications, 2001 for Roads and Bridge works.
The filler shall be graded within the following limits.
IS Sieve Percent passing by weight 600 micron 100 300 micron 95 – 100 75 micron 85 - 100
The filler shall be free from organic impurities and have a Plasticity
Index (P.I.) not greater than four. P.I. shall not apply if the filler
material is lime or cement.
12.2.5 Aggregate gradation :
The mineral aggregates including mineral filler shall be so graded or
combined as to conform to the grading set forth in the following
Table.
Composition of Crack relief layers
IS Sieve Cumulative % by weight of total aggregate passing **
19.0 mm 100 12.5 mm 75 – 95 4.75 mm 15 – 25 0.15 mm 3 – 6 Binder Content % * 2.5 to 4%
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.278 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
* Binder content to be calculated by weight of the total mixture.
This excludes the binder absorbed by the aggregates.
** The percentages presented are based on dry sieving.
12.3 Mix Design :
12.3.1 Requirement of mix :
Apart from conformity with the grading and quality requirements of
individual ingredients, the mix shall meet the requirements set forth
in Table below.
Requirements of crack relief layer
prepared with Modified Bitumen
Air Voids (Va) in Mix >20%
Compaction (ASTM 1559) 2 x 75 blows
Marshall stability at 60oC > 5000 N
Compatibility of the bitumen with the aggregate shall b examined to
avoid stripping of bitumen (decomposition of the mixture).
Stripping will be tested according to IS:6241 and should not exceed
5%. If this is observed adhesion improvers (such as a hydraulic type
of filler) may be used at no additional cost.
12.3.2 Binder Content :
The binder content shall be so fixed as to achieve the requirements of
the mix set forth in above Table. Modified Marshal method of
Asphalt mix design for arriving at the binder content shall be adopted
as described in The Asphalt Institute Manual MS-2.
12.4 Job Mix Formula :
Clause 507.3.3 of MORT&H shall apply except that the requirement
of mix shall be as per Table given above.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.279 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
12.5 Permissible variations from the job mix formula :
It shall be responsibility of contractor to produce a uniform mix,
confirming to approved job mix formula. The permissible variations
of the individual percentages of various ingredients in the actual mix
from the job mix formula to be within the limits specified in the table
below : -
Tolerances for establishment the Job mix formula
Aggregate passing 4.75 mm sieve or larger + 4%
Aggregate passing 0.15mm sieve + 2%
Bitumen content + 0.3%
Void content in the total mixture + 3 to 8%
12.6 Construction operation :
12.6.1 Weather and seasonal limitations :
Clause 504.3.1 of MORT&H specifications shall apply.
12.6.2 Preparation of base :
The base on which bituminous concrete is to be laid shall be
prepared, shaped and conditioned to the specified levels, grade and
cross fall (camber) in accordance with clause 501 of MORT&H
specifications or as directed by the Engineer. The surface shall be
thoroughly swept and scrapped clean and free of dust and other
foreign matter.
12.6.3 Tack Coat :
A tack coat as per Clause 8.0 of the Particular Specifications shall be
applied over the base as specified or as directed by the Engineer.
This will be paid under separate item.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.280 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
12.7 Preparation of mix :
Hot mix plant of adequate capacity and capable of producing proper
and uniform quality mix shall be used for preparing the mix. The
mix plant may be either a weigh batch type or volumetric
proportioning continuous or drum mix type. The plant shall be co-
ordinated set of essential units capable of producing uniform mix as
per the job mix formula.
The temperature of binder (PMB – 40) at the time of mixing shall be
in the range of 165 deg. – 185 deg. C and of aggregates in the range
of 155 deg. – 185 deg. C. Provided also that at no time shall the
difference in temperature between the aggregates and binder exceed
14 deg C.
Mixing shall be thorough to ensure that a homogeneous mixture is
obtained in which all particles of the mineral aggregates are coated
uniformly.
The mix shall be transported from the mixing plant to the point of
use in suitable tipper vehicles. The temperature of mix at mixing
plant shall be in the range of 140 deg. C to 160 deg. C.
The vehicles employed for transport shall be clean and be covered
over in transit.
12.8 Construction :
Compaction of the crack relief layer shall be done with 8 to 10
tonnes dual drum steel rollers. Over-compaction should be avoided
to prevent extensive fracture of the coarse aggregates. Vibratory or
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.281 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
pneumatic tyred type of rollers should not be used for compaction of
crack relief layers.
During the laying of the crack relief layer the achieved compaction
should be verified continuously with nuclear density measurements.
The nuclear density measurements shall be calibrated against the
actual achieved compaction at core samples.
The temperature of the material in the hopper of the asphalt paver as
well of the asphalt material just after laying shall be monitored with
the help of infrared temperature measuring equipment. The
compaction shall be completed in all respects when the mix is in the
temperature rang of 115oC to 135oC.
A field trial layer of the established job mix design at a width of 4m
and a length of at least 50 m and at the layer thickness as specified in
the contract shall be applied.
The test section shall determine the appropriate method of spreading
compacting and finishing the bitumen mixture to comply with the
specifications.
The trial layer shall be examined on achieved compaction, void
content and homogeneity of the mix composition.
Before application of a tack coat on top of the crack relief layer for
the binder layer the surface shall be inspected for eventual
contaminations. Dust can be removed by compressed air. Any other
contamination should be washed out.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.282 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
12.9 Opening of traffic :
Traffic may be allowed immediately after completion of the final
rolling when the mix has cooled down to the surrounding
temperature.
12.10 Measurement for payment :
Crack relief layer shall be measured as finished work in cubic
metres.
12.11 Rate :
The contract unit rate for crack relief layer shall be payment in full
for carrying out the required operations including full compensation
for :
i) Providing all materials to be incorporated in the work including
all leads and lifts.
ii) All labour, tools, equipments, plant and incidentals to complete
the work to the specification.
iii) Carrying out he work in part widths of the road where directed.
iv) All laboratory and field tests for quality control as per
Cl.No.900 of MORT&H Specifications and as per SP:53 :
IRC:2002 and IS:15462 : 2004.
13.0 DENSE BITUMINOUS MACADAM
13.1 SCOPE :
This clause specifies the construction of Dense Bituminous
Macadam (DBM), for use mainly, but not exclusively, in base/binder
and profile corrective courses. DBM is also intended for use as road
base material. This work shall consist of construction in a single or
multiple layers of DBM on a previously prepared base or sub-base.
The thickness of a single layer shall be 50mm to 100mm.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.283 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
13.2 MATERIAL :
13.2.1 Bitumen :
The bitumen shall be paving bitumen of Penetration Grade
complying with Indian Standard Specification for “Paving Bitumen”
IS:73 and of the penetration indicated in Table 500-10 of MORT &
H Specifications for dense bitumen macadam, or this bitumen as
modified by one of the methods specified in Clause 521 of MORT &
H specifications, or as otherwise specified in the Contract. Guidance
on the selection of an appropriate grade of bitumen is given in The
Manual for Construction and Supervision of Bituminous Works.
13.2.2 Coarse aggregates :
The coarse aggregates shall consist of crushed rock, crushed gravel
or other hard material retained on the 2.36 mm sieve. They shall be
clean, hard, durable of cubical shape, free from dust and soft or
friable matter, organic or other deleterious substances. Where the
Contractor's selected source of aggregates have poor affinity for
bitumen, as a condition for the approval of that source, the bitumen
shall be treated with an approved anti-stripping agent, as per the
manufacturer's recommendations, without additional payment.
Before approval of the source, the aggregates shall be tested for
stripping. The aggregates shall satisfy the physical requirements
specified in Table 500-8 of MORT & H Specifications, for dense
bituminous macadam.
Where crushed gravel is proposed for use as aggregate, not less than
90% by weight of the crushed material retained on the 4.75mm sieve
shall have at least two fractured faces.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.284 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
13.2.3 Fine aggregates :
Fine aggregates shall consist of crushed or naturally occurring
mineral material or a combination of the two, passing the 2.36mm
sieve and retained on the 75 micron sieve. They shall be clean, hard,
durable, dry and free from dust, and soft or friable matter, organic or
other deleterious matter.
The fine aggregate shall have a sand equivalent value of not less than
50 when tested in accordance with the requirement of IS:2720 (Part
37).
The plasticity index of the fraction passing the 0.425 mm sieve shall
not exceed 4, when tested in accordance with IS:2720 (Part 5)
TABLE 500-8 PHYSICAL REQUIREMENTS FOR COARSE AGGREGATES FOR
DENSE GRADED BITUMINOUS MACADAM
Property Test Specification Cleanliness (dust) Grain size analysis1 Max 5% passing 0.075mm
sieve Particle shape Flakiness and Elongation Index
(Combined)2 Max 30%
Strength* Los Angeles Abrasion Value3 Aggregate Impact Value4
Once the plant trials have demonstrated the capability of the plant,
and the trials are approved, the laying operation may commence.
Over the period of the first month of production for laying on the
works, the Engineer shall require additional testing of the product to
establish the reliability and consistency of the plant.
13.3.5 Laying Trials :
Once the plant trials have been successfully completed and
approved, the Contractor shall carry out laying trials, to demonstrate
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.291 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
that the proposed mix can be successfully laid, and compacted all in
accordance with Clause 501. The laying trial shall be carried out on
a suitable area which is not to form part of the works, unless
specifically approved in writing, by the Engineer. The area of the
laying trials shall be a minimum of 100 sqm. of construction similar
to that of the project road, and it shall be in all respects, particularly
compaction, the same as the project construction, on which the
bituminous material is to be laid.
The Contractor shall previously inform the Engineer of the proposed
method for laying and compacting the material. The plant trials shall
then establish if the proposed laying plant, compaction plant, and
methodology is capable of producing satisfactory results. The
density of the finished paving layer shall be determined by taking
cores, no sooner than 24 hours after laying, or by other approved
method.
Once the laying trials have been approved, the same plant and
methodology shall be applied to the laying of the material on the
project, and no variation of either shall be acceptable, unless
approved in writing by the Engineer, who may at his discretion
require further laying trials.
13.4 CONSTRUCTION OPERATIONS :
13.4.1 Weather and seasonal limitations :
Laying shall be suspended while free-standing water is present on
the surface to be covered or during rain, fog and dust stones. After
rain, the bituminous surface, prime or tack coat, shall be blown off
with a high pressure air jet to remove excess moisture or the surface
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.292 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
left to dry before laying shall start. Laying of bituminous mixtures
shall not be carried out when the air temperature at the surface on
which it is to be laid is below 10oC or when the wind speed at any
temperature exceeds 40 km/h at 2m height unless specifically
approved by the Engineer.
13.4.2 Preparation of base :
The base on which Dense Graded Bituminous Material is to be laid
shall be prepared in accordance with Clauses 501 and 902 as
appropriate or as directed by the Engineer. The surface shall be
thoroughly swept clean by a mechanical broom, and the dust
removed by compressed air. In locations where mechanical broom
cannot access, other approved methods shall be used as directed by
the Engineer.
13.4.3 Geosynthetics :
Where Geosynthetics are specified in the Contract this shall be in
accordance with the requirements stated in Clause 703 of MORT &
H specifications.
13.4.4 Stress absorbing layer :
Where a stress absorbing layer is specified in the Contract, this shall
be applied in accordance with the requirements of Clause 522 of
MORT & H specifications.
13.4.5 Prime coat :
Where the material on which the dense bituminous macadam is to be
laid is other than a bitumen bound layer, a prime coat shall be
applied, as specified, in accordance with the provisions of Clause
502 of MORT & H specifications, or as directed by the Engineer.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.293 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
13.4.6 Tack coat :
Where the material on which the dense bituminous macadam is to be
placed is a bitumen bound surface, a tack coat shall be applied as
specified, in accordance with the provisions of Clause 503 of MORT
& H specifications, or as directed by the Engineer.
13.4.7 Mixing and transportation of the mixture :
The provisions as specified in Clauses 501.3 and 501.4 of MORT &
H specifications shall apply.
13.4.8 Spreading :
The provisions of Clauses 501.5.3 and 501.5.4 of MORT & H
specifications shall apply.
13.4.9 Rolling :
The general provisions of Clauses 501.6 and 501.7 of MORT & H
specifications shall apply, as modified by the approved laying trials.
The compaction process shall be carried out by the same plant and
using the same method, as approved in the laying trials, which may
be varied only with the express approval of the Engineer in writing.
13.5 OPENING TO TRAFFIC :
The newly laid surface shall not be opened to traffic for at least 24
hours after laying and completion of compaction, without the express
approval of the Engineer in writing.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.294 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
13.6 SURFACE FINISH AND QUALITY CONTROL OF WORK :
The surface finish of the completed construction shall conform to the
requirements of Clause 902 of MORT & H Specifications. All
materials and workmanship shall comply with the provisions set out
in Section 900 of this specifications.
13.7 ARRANGEMENTS FOR TRAFFIC :
During the period of construction, arrangements for traffic shall be
made in accordance with the provisions of Clause 112.
13.8 MEASUREMENT FOR PAYMENT :
Dense Bituminous Materials shall be measured as finished work in
cubic metres, at a specified thickness as detailed on the Contract
drawings, or documents, or as directed by the Engineer.
13.9 RATE :
The contract unit rate for Dense Graded Bituminous Macadam shall
be payment in full for carrying out the all required operations as
specified, and shall include, but not necessarily limited to all
components listed in Clause 501.8.8.2(i) to (xi) of MORT & H
specifications.
14.0 BITUMINOUS CONCRETE
14.1 This clause specified the construction of Bituminous Concrete for use
in wearing and profile corrective course. This work shall consist of
construction in a single or multiple layers of bituminous concrete on a
previously prepared bituminous bound surface. A single layers shall
be 25mm to 100mm in thickness.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.295 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
14.2 MATERIALS :
14.2.1 Bitumen :
The bitumen shall be paving bitumen of Penetration grade complying
with Indian Standard Specification for Paving Bitumen, IS:73 and of
the penetration indicated in Table 500-18 of M.O.R.T. & H.
Specifications (Fourth Revision), for bituminous concrete, or this
bitumen as modified by one of the methods specified in Clause 521
of M.O.R.T. & H. Specifications (Fourth Revision) or as otherwise
specified in the contract. Guidance on the selection of an appropriate
grade of bitumen is given in the manual for Construction and
Supervision of Bituminous Works.
14.2.2 Coarse aggregates :
The coarse aggregates shall be generally as specified in Clause
507.2.2 of M.O.R.T. & H. Specifications (Fourth Revision), except
that the aggregates shall satisfy the physical requirements of Table
500-17 of M.O.R.T. & H. Specifications (Fourth Revision).
14.2.3 Fine aggregates :
The fine aggregates shall be all as specified in Clause 507.2.3 of
M.O.R.T. & H. Specifications (Fourth Revision).
14.2.4 Filler :
Filler shall be generally as specified in Clause 507.2.4 of M.O.R.T.
& H. Specifications (Fourth Revision). Where the aggregates fails
to meet the requirements of the water sensitivity test in Table 500-
17 of M.O.R.T. & H. Specifications (Fourth Revision), then 2 per
cent by total weight of aggregate, of hydrated lime shall be added
without additional cost.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.296 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
TABLE 500-17 PHYSICAL REQUIREMENTS FOR COARSE AGGREGATES FOR
BITUMINOUS CONCRETE PAVEMENT LAYERS
Property Test Specification Cleanliness (dust) Grain size analysis1 Max 5% passing 0.075mm
sieve Particle shape Flakiness and Elongation Index Max 30% (Combined)2 Strength* Los Angeles Abrasion Value3
Aggregate Impact Value4 Max 30% Max 24%
Polishing Polished Stone Value5 Min 55 Durability Soundness6
Sodium Sulphate Magnesium Sulphate
Max 12% Max 18%
Water Absorption Water absorption7 Max 2% Stripping Coating and stripping of
Bitumen Aggregate Mixtures9
Minimum retained Coating 95%
Water Sensitivity**
Retained Tensile Strength8 Min 80%
Notes : 1. IS:2386 Part 1 6. IS:2386 Part 5 2. IS:2386 Part 1 7. IS:2386 Part 3 (the elongation test to be done only on non-flaky aggregates in
the sample) 3. IS:2386 Part 4* 8. AASHTO T283** 4. IS:2386 Part 4* 9. IS:6241 5. BS:812 Part 114 * Aggregates may satisfy requirements of either of these two tests. ** The water sensitivity test is only required if the minimum
retained coating in the stripping test is less than 95%
14.2.5 Aggregate grading and binder content :
When tested in accordance with IS:2386 Part-1 (Wet grading
method), the combined grading of the coarse and fine aggregates and
added filler shall fall within the limits shown in Table 500-18 of
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.297 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
M.O.R.T. & H. Specifications (Fourth Revision), for gradings 1 or 2
as specified in the contract.
TABLE 500-18 COMPOSITION OF BITUMINOUS CONCRETE PAVEMENT
LAYERS
Grading 1 2 Nominal aggregate size 19 mm 13 mm Layer Thickness 50-65 mm 30-45 mm IS Sieve1(mm) Cumulative % by weight of total aggregate passing45 - - 37.5 - - 26.5 100 - 19 79-100 100 13.2 59-79 79-100 9.5 52-72 70-88 4.75 35-55 53-71 2.36 28-44 42-58 1.18 20-34 34-48 0.6 15-27 26-38 0.3 10-20 18-28 0.15 5-13 12-20 0.075 2-8 4-10 Bitumen content % by mass of total mix2
5.0 – 6.0 5.0 – 7.0
Bitumen grade (pen) 65 65
Notes : 1. The combined aggregate grading shall not vary from the low
limit on one sieve to the high limit on the adjacent sieve.
2. Determined by the Marshall method.
14.3 MIXTURE DESIGN :
14.3.1 Requirements for the mixture :
Apart from conformity with the grading and quality requirements for
individual ingredients, the mixture shall meet the requirements set
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.298 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
out in Table 500-19 of M.O.R.T. & H. Specifications (Fourth
Revision).
The requirements for minimum per cent voids in mineral aggregate
(VMA) are set out in Table 500-12 of M.O.R.T. & H. Specifications
(Fourth Revision).
TABLE 500-19 REQUIREMENTS FOR BITUMINOUS PAVEMENT LAYERS
Minimum stability (kN at 600C) 9.0 Minimum flow (mm) 2 Maximum flow (mm) 4 Compaction level (Number of blows) 75 blows on each of the two
faces of the specimen Percent air voids 3-6 Percent voids in mineral aggregate (VMA)
See Table 500-12 of MORT & H.
Percent voids filled with bitumen (VFB) 65-75 Loss of stability on immersion in water at 600C (ASTM D 1075)
Min. 75 % retained strength.
14.3.2 Binder content :
The binder content shall be optimized to achieve the requirements of
the mixture set out in Table 500 – 18 of M.O.R.T. & H.
Specifications (Fourth Revision) and the traffic volume as specified
in the contract. The Marshall method for determining the optimum
binder content shall be adopted as described in the Asphalt Institute
Manual MS-2, replacing the aggregates retained on the 26.5 mm
sieve and retained on the 22.4 mm sieve, where approved by the
Engineer.
14.3.3 Job mix formula :
The procedure for formulating the job mix formula shall be generally
as specified in Clause 507.3.3 of M.O.R.T. & H. Specifications
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.299 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
(Fourth Revision) and the results of tests enumerated in Table 500-
19 of M.O.R.T. & H. Specifications (Fourth Revision) as obtained by
the Contractor.
14.3.4 Plant trials – permissible variation in job mix formula :
The requirements for plant trials shall be as specified in Clause
507.3.4 of M.O.R.T. & H. Specifications (Fourth Revision), and
permissible limits for variation as shown in Table 500 – 13 of
M.O.R.T. & H. Specifications (Fourth Revision).
14.3.5 Laying trials :
The requirements for laying trials shall be all as specified in Clause
507.3.5 of M.O.R.T. & H. Specifications (Fourth Revision).
14.4 CONSTRUCTION OPERATION :
14.4.1 Weather and seasonal limitations :
The provisions of Clause 501.5.1 of M.O.R.T. & H. Specifications
(Fourth Revision) shall apply.
14.4.2 Preparation of base :
The surface on which the bituminous concrete is to be laid shall be
prepared in accordance with Clauses 501 and 902 of M.O.R.T. & H.
Specifications (Fourth Revision) as appropriate, or as directed by the
Engineer. The surface shall be thoroughly swept clean by
mechanical broom and dust removed by compressed air. In locations
where a mechanical broom cannot access, other approved methods
shall be used as directed by the Engineer.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.300 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
14.4.3 Geosynthetics :
Where Geosynthetics are specified in the contract this shall be in
accordance with the requirements stated in Clause 703 of M.O.R.T.
& H. Specifications (Fourth Revision).
14.4.4 Stress absorbing layer :
Where a stress absorbing layer is specified in the contract, this shall
be applied in accordance with the requirements of Clause 522 of
M.O.R.T. & H. Specifications (Fourth Revision).
14.4.5 Tack coat :
Where specified in the contract, or otherwise required by the
Engineer, a tack coat shall be applied in accordance with the
requirements of Clause 503 of M.O.R.T. & H. Specifications (Fourth
Revision).
14.4.6 Mixing and transportation of the mixture :
The provisions as specified in Clauses 501.3 and 501.4 of M.O.R.T.
& H. Specifications (Fourth Revision) shall apply.
14.4.7 Spreading :
The general provisions of clauses 501.5.3 and 501.5.4 of M.O.R.T.
& H. Specifications (Fourth Revision) shall apply.
14.4.8 Rolling :
The general provisions of clauses 501.6 and 501.7 of M.O.R.T. & H.
Specifications (Fourth Revision) shall apply, as modified by the
approved laying trials.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.301 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
14.5 OPENING OF TRAFFIC :
The newly laid surface shall not be open to traffic for at least 24
hours after laying and the completion of compaction, without the
express approval of the Engineer in writing.
14.6 SURFACE FINISH AND QUALITY CONTROL :
The surface finish of the completed construction shall conform to the
requirements of Clause 902 of M.O.R.T. & H. Specifications (Fourth
Revision). All materials and workmanship shall comply with the
provisions set out in Section 900 of M.O.R.T. & H. Specifications
(Fourth Revision).
14.7 ARRANGEMENTS FOR TRAFFIC :
During the period of construction, arrangements for traffic shall be
made in accordance with the provisions of Clause 112 of M.O.R.T.
& H. Specifications (Fourth Revision).
14.8 MEASUREMENT FOR PAYMENT :
Bituminous concrete shall be measured as finished work in cubic
metres.
14.9 RATE :
The contract unit rate shall be all as specified in Clause 507.9 of
M.O.R.T. & H Specifications (Fourth Revision) and applicable to
work specified as per Schedule “A”.
15.0 Disposal of surplus excavated material upto 3.0 km. lead
including loading, unloading, transporting by mechanical or
other means, stacking, spreading, levelling as directed by
Engineer etc. complete beyond initial lead of 50m.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.302 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
15.1 SCOPE OF WORK AND ITEM TO INCLUDE :
All labour, material and equipment required for loading, conveyance,
unloading, stacking or spreading the material for satisfactory
completion of the item and the incidental charges, royalties,
compensation or damages required to be paid.
15.2 MODE OF MEASUREMENT AND PAYMENT :
The distance of conveyance shall be measured from the centre of
gravity of the bulk of excavation to the centre of gravity of the
finished stacks or spreading or disposal. This distance shall be the
shortest practicable route between the above mentioned two centres
of gravity as decided by the Engineer although the actual route taken
by the Contractor to lead out the materials may be longer. The
shortest practicable route which can be used by the Contractor or
which the department could have used itself, whichever is shorter.
The extra lead is obtained by deducting the initial free lead of 50
meters from the above. The lead shall be measured in units of 100
m. In the former case 25 m. or above shall be taken as one unit and
less than 25 m. shall be ignored. In the latter case 50 m. or above
shall be taken as one unit and less than 50 m. shall be ignored. All
lifts are included in the rate.
The contract rate shall be for one cubic metre of materials conveyed
to the placed disposal.
16.0 Providing PCC precast factory made kerb stone of 500x400x150
mm size in M-25 grade of concrete using design mix with
minimum cement content as per IS 456 for moderate exposure
condition including fixing in PCC 1:2:4, 250 mm thick, filling the
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.303 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
joint with CM 1:3, pointing in CM (1:3) on exposed face etc.
complete including painting in two coats of oil paint to exposed
surfaces, one coat of primer and excavation and disposal of
excavated material, making good the road etc. complete.
16.1 MANUFACTURE :
Pre-cast factory made kerb stones PCC/RCC in M-25 grade concrete
and of specified dimensions shall be manufactured in accordance
with IS 5758 – 1970 and generally in accordance with specifications
of concrete works as specified.
16.2 SIZE :
The sizes of kerb stones be as per detailed under Schedule “A”. The
concrete shall consists of grade M-25 laid to the dimension, lines and
levels shown in the drawings and well compacted by ramming or
other means. The kerb stone / RCC kerb stone then be embedded
into cement concrete of 1:3:6 to a minimum thickness of 100 mm all
around including filling joints with C.M. 1:2 and finishing with neat
cement slurry etc. complete as specified or as directed by the
Engineer. After the line and levels have been checked to be within
the specified tolerance the haunching will be placed taking care that
the line and level of the kerbs is not displaced during the process.
All straight kerbs, circular kerbs, quadrants or other kerbs shall be
laid within a vertical or horizontal tolerance of 3 mm from the true
line or level.
16.3 MEASUREMENT FOR PAYMENT :
Measurements shall be in linear meter up to 0.01 mt. of specified
size of kerb / RCC kerb stone provided.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.304 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
16.4 RATE :
The unit rate shall include all materials, labour, tools & plants etc.
including transportation to site, unloading, excavation, laying,
curing, oil painting or without oil painting as per respective item,
disposal off unsuitable material etc. all required to complete the job
as per drawing.
17.0 PRECAST FACTORY MADE WATER TABLE :
Manufacture :
Precast factory made P.C.C. water table of M-25 grade, minimum
cement content as per IS 456-2000 for moderate exposure condition,
water cement ratio 0.45 and of specified dimension shall be
manufactured in accordance with IS 5758-1970 and generally in
accordance with specification of concrete works as specified.
17.1 SIZE :
The size of water table shall be as per drawing or as directed by
Engineer.
17.2 MEASUREMENT FOR PAYMENT :
Measurement shall be in linear meter up to 0.01 mtr. of specified size
of water table provided.
18.0 Providing lowering, laying and jointing RCC pipes
manufactured as per IS:458 (latest version) having ISI mark of
various diameter NP-2/3 class in proper grade including cost of
materials, providing and fixing collars in cement mortar 1:2 etc.
complete.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.305 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
18.1 GENERAL :
The item provides for the supply and fixing of the concrete pipes of the
specified class and diameter in position for the Cross Drainage works
including necessary collars, conveyance and fixing in cement mortar
1:2.
18.2 MATERIALS :
Concrete pipes shall be of the class and diameter mentioned in the item
and shall comply with I.S. 458-1971.
The collars shall be of the appropriate size for fixing of the concrete
pipes specified on the drawings and shall comply with the I.S.
458-1971.
The cement mortar shall comply with the specification No.B.5(a),
proportion of cement to sand being 1:2.
18.3 FIXING :
The handling and laying of the concrete pipes shall comply with I.S.
783-1985 code of practice of laying concrete pipes.
The pipes shall be laid to the lines and levels shown on the drawings
and the slope shall be 1 in 100 towards the down stream unless other
slopes are specified on the drawing or as ordered by the Engineer.
The ends of the pipes shall be flush with face of masonry or bell
mouthed if so indicated on the drawings or ordered by the Engineer.
Pipes of non-standard length may be used when standard length pipes
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.306 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
do not fit in between the faces of walls. Otherwise extra lengths of
standard pipes may be left projecting beyond face of masonry on the
downstream. Such extra length will not be paid for.
Diversions of the road if found necessary, shall be provided according
to BR.1 at the cost of the contractor unless separately provided in the
tender.
The collar joints be cured satisfactorily. Till then the filling around
shall not be done.
18.4 ITEM TO INCLUDE :
1) Supply, conveyance and fixing of the spun concrete pipes
including collars, fixing in cement mortar 1:2 to the line, levels
and slope.
2) All labour materials, use of equipment and tools for completing
the item satisfactorily.
18.5 MODE OF MEASUREMENT & PAYMENT :
The measurement shall be for the length of pipes provided and fixed
with collars from the outside of one face wall to the outside of the
other face wall, limiting the length to that specified in the plan, or
ordered by the Engineer.
The length shall be measured correct up to a centimetre. The rate shall
be inclusive of all the projecting lengths, if any, projections being
ignored in the measurements.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.307 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
19.0 Providing and casting Ready Mix Concrete (RMC) of M-20
grade using design mix with minimum cement content and
maximum water cement ratio as per IS : 456-2000 using 20 mm
nominal maximum size aggregates and down trap metal for
foundation and bedding etc. complete.
19.1 GENERAL :
The specifications pertain to cement concrete of the specified
proportion to be laid in thin bedding, bedding below paved floors,
encasing of R.C.C. pipes etc.
19.2 PREPARATION OF FOUNDATION FOR LAYING
CONCRETE :
Passing foundation : The foundation shall be passed in writing by the
Engineer before concreting started. The bed of the foundation
trenches shall be cleaned of all loose material and well wetted, if dry,
to prevent absorption of water from the green concrete.
In the case of paved floors, plinth filling and rubble soling, if any shall
have been well compacted and brought to the required levels etc., and
passed by the Engineer before concrete is allowed to be laid.
19.3 DEWATERING :
If the area on which the concrete is to be placed is under water, water
shall be removed as specified for Bd.A.9 of Red Book. Unless
dewatering is separately provided for in the tender, the rate for concrete
shall include the cost of dewatering also.
19.4 CONCRETE :
The cement concrete shall comply with IS:456-2000 or its amendments
for controlled cement concrete and IS : 4926-2003 for RMC. The
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.308 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
specifications as mentioned in the Particular Specifications for S.W.
Drains for concrete work hereinafter shall be applicable.
19.4.1 Proportion : Proportion of materials shall be as mentioned in the
wording of the item.
19.4.2 Coarse aggregates : Coarse aggregate shall be broken from sound
stones of the type mentioned in the item and of approved quality.
Maximum size of aggregate shall not exceed 50 mm, when the depth
of concrete footing is 20 cm. or more and the aggregate shall be well
graded between the maximum size and 5 mm. For less depths, the
maximum size shall not exceed 1/4 the depth.
19.4.3 Forms : If the trenches are dug exactly to the dimensions of footings,
no forms will be necessary. But the sides and bottom of the trenches
shall be moistened to the extent necessary to prevent absorption of
water from the concrete.
If, however, footings are dug to dimensions larger than those shown
on the drawings or as directed by the Engineer, forms complying with
specification No.B.6.5(b) of Red Book shall be used at the contractor's
cost. The side forms shall be removed 48 hours after placement of
concrete.
19.5 ITEM TO INCLUDE :
1) All labour, materials, use of equipment, tools and plant, installing
and removal of scaffolding, false work and forms and bracing
necessary for the satisfactory completion of the item except
reinforcement steel.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.309 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
2) Providing cement concrete of specified proportion including
transporting, placing and compacting, curing, finishing to the
dimensions and shapes shown on the plans or as ordered by the
Engineer.
3) Necessary sampling and tests for materials and concrete.
4) Compensation for injury to person and damages to work or
property.
19.6 MODE OF MEASUREMENT & PAYMENT :
The contract rate shall be for a unit of one cubic metre of concrete.
The concrete shall be measured for its length, breadth and depth,
limiting dimensions to those specified on the plan or as ordered by the
Engineer. No deduction shall be made for reinforcement in concrete in
R.C.C. work. Individual dimension shall be measured correct to one
cubic metre and quantities shall be worked out correct up to two places
of decimals of a cubic metre.
20.0 Providing dry trap/rubble stone soling 15 cm to 23 cm thick
including hand packing and compacting etc. complete.
20.1 GENERAL :
After the structural foundation, plinth construction and filling are
completed, rubble soling of specified thickness shall be laid over the
consolidated plinth filling, hand packed and compacted.
20.2 MATERIALS :
The stones to be used shall be broken rubble with fairly regular
shape and free from weathered, soft and decayed portion. The rubble
shall be of sound stones of the type mentioned in the item and
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.310 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
selected for their larger size. Stones shall be of the fully height of
the soling and the length and width shall not generally exceed 2
times the height. The stones to be used for wedging in the joints
between larger stones, shall be clips of the largest size possible to fit
in the interstice. All sound and suitable obtained from the
foundation excavation and approved by the Engineer shall be
necessarily made use of first unless otherwise directed.
20.3 CONSTRUCTION :
The bed on which rubble filling is to be laid shall be cleared of all
loose materials, leveled watered and compacted and got approved by
the Engineer before laying rubble soling.
Rubble soling shall be laid to the specified thickness closely packed
by hand and firmly set with their broadest face downwards. The
interstice between adjacent stones shall be wedged in with stones of
the proper size and shape and well driven with wooden mallets to
ensure a tightly packed layer. Such wedging shall closely follow the
placing of the larger stones. After hand packing and wedging,
compaction of the soling shall be done thoroughly with log rammers.
Adequate care shall be taken by the contractor while laying and
compacting the rubble soling to see that the masonry or any part of
the structure is not damaged. Rubble soling shall be started only
after the masonry is fully cured.
20.4 ITEM TO INCLUDE :
i) Supplying broken rubble of approved quality and size at site.
ii) All labour, material tools and equipment for handling, laying,
hand packing and compacting the rubble.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.311 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
iii) Any other incidental charges to complete the work as per
sanctioned plan.
20.5 MODE OF MEASUREMENT AND PAYMENT :
Rubble soling shall be measured in cubic meters limiting the
dimensions to those shown on the drawings or as directed by the
Engineer. The dimensions shall be measured correct to two places of
decimal of a meter and quantities worked out correct to places of
decimals of a cubic meter. No deduction shall be made for voids.
The contract rate shall be for an unit of one cubic meter.
If suitable rubble is available from excavated material it shall be
issued to the Contractor at the rate mentioned in Schedule “A” and if
there is no such provision the rate to be charged shall be that
occurring in the Divisional Schedule or at a mutually agreed rate if
there is no such rate in the Divisional Schedule. Such rubble shall be
used first and only additional rubble required shall be brought from
outside, unless otherwise directed.
21.0 Providing and constructing B.B. masonry chamber of size 1.84
m. x 0.60 m. & 230 mm wall thickness with 15 cm thick 1:3:6
PCC bedding, including excavation, B.B. Masonry in C.M. 1:4,
precast RCC frame and cover, etc. complete.
21.1 GENERAL :
The item pertains to the provision of inspection chambers of brick
masonry of the internal size specified in the item and of the required
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.312 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
depth including 1:4:8 cement concrete foundation, 1:2:4 cement
concrete channels corresponding to the pipes or salt glazed
stoneware half round channels, one brick masonry in cement mortar
1:6 plastered on the inside with cement mortar 1:3 with a cast iron
frame and airtight lid fixed into a concrete slab at top.
This item shall be subject to the general specifications.
21.2 MATERIALS :
Bricks shall conform to A.92 of I.S. or conventional type as ordered.
Cement mortar 1:6 and 1:3 shall conform to B.5 (a) of Red Book.
Cement concrete 1:4:8 and 1:2:4 shall conform to B.6 of Red Book.
RCC frame & cover shall be provided as per design and drawings or
as directed by Engineer. They shall be of the air-tight and heavy
type where subjected to vehicular traffic.
21.3 CONSTRUCTION :
The inspection chamber shall be of the internal dimensions specified
and shall have sufficient depth so as to receive the pipes. Necessary
excavation shall be done for the construction of the chamber.
Foundation of 1:3:6 concrete shall be 15 cm. thick, shall extend 8
cm. beyond the outside faces of the chamber and shall conform to
B.6 of Red Book.
The brick masonry shall be of one brick, in cement mortar 1:6 and
shall conform to B.8 (b) of Red Book.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.313 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
The cement concrete 1:2:4 shall be laid to necessary shapes inside to
form channels for the pipes being received. The channels shall be of
the appropriate diameter and shall be half round. The sides shall be
kept sloping towards the channels. Alternatively if so provided, half
– round, S.W.G. pipes shall be fixed to form channels.
The brick masonry shall be plastered with 1:3 cement mortar on the
laying 1:2:4 concrete forming channels or laying half round salt
glazed stoneware pipes, plastering the inside faces, fixing RCC
frames covers.
2) All necessary labours, materials and use of tools.
21.5 MODE OF MEASUREMENT & PAYMENT :
The contract rate shall be for one inspection chamber of the specified
size constructed as detailed above. The measurement shall be for the
number of such chambers constructed.
22.0 Filling in footpath with contractor's murum in 15cm to 20cm
layers including watering and compaction complete.
22.1 GENERAL :
After the structural foundations and plinth construction is over, and
the sides of foundations trenches are filled up to ground level, the
space between ground level and such level below top of plinth
depending upon the depth of flooring, its bedding and foundation
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.314 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
shall be filled in with contractor’s soil, sand or murum as specified
and approved by the Engineer, watered and compacted.
22.2 CONSTRUCTION :
The filling shall be carried out as specified in Bd.A.10 except that
the material to be filled in shall be brought from outside instead of
from the foundation excavation.
The material to be brought from outside shall be either sand, murum.
Good yellow soil, or a mixture of these and shall be got approved by
the Engineer. In no case, black cotton or similar greatly expansive
and shrinkable soil shall be used.
The approved material to be filled in shall be clean and free from all
rubbish and perishable material and all clods shall be broken to a size
of 50 mm or less. The stacking of material should be done in such a
way as not to interfere with any general traffic, or any constructional
process or activities. The contractor shall be responsible for any
mishap or inconvenience of any kind to his default in this respect.
22.3 ITEM TO INCLUDE :
1) Clearing the ground on which filling is to be done and
dewatering if necessary.
2) Providing the approved material for filling in.
3) Cleaning up the material to be used for filling if necessary.
4) Filling contractor’s soil in plinth in layers, watering and
compaction.
5) All labour, equipment and other arrangements necessary for
satisfactory completion of the item.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.315 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
22.4 MODE OF MEASUREMENT AND PAYMENT :
The contract rate shall be for a unit of one cubic meter of compacted
plinth filling with material brought by the contractor from outside.
The rate shall include cost of the materials.
23.0 THERMO PLASTIC ROAD MARKING PAINT
23.1 ROAD MARKING :
23.1.1 General :
The colour, width and layout of road markings shall be in accordance
with the Code of Practice for road markings with Clause 803 of
MORT&H Specifications and as specified in the drawings or as
directed by the Engineer.
23.1.2 Materials :
Reflectorised paints for edge markings and road markings, made of
hot applied thermoplastic compound.
23.2 HOT APPLIED THERMOPLASTIC ROAD MARKING :
23.2.1 General :
i) The work under this section consists of marking traffic strips
using a thermoplastic compound meeting the requirements
specified herein.
ii) The termoplastic compound shall be screeded or sprayed on the
pavement surface in a molten state by suitable machine capable
of controlled preparation and laying with surface application of
glass beads at a specific rate. Upon cooling to ambient
pavement temperature, it shall produce an adherent pavement
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.316 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
marking of specified thickness and width and capable of
resisting deformation by traffic.
iii) Where the compound is to be applied to cement concrete
pavement, a sealing primer as recommended by the
manufacturer shall be applied to the pavement in advance of
placing of the strips to ensure proper bonding of the compound.
On new concrete surface any laitance and/or curing compound
shall be removed before the markings are applied.
23.3 THERMOPLASTIC MATERIAL :
23.3.1 General :
The thermoplastic material shall be homogenously composed of
aggregate, pigment, resins and glass reflectorising beads.
23.3.2 Requirement :
23.3.2.1 Composition :
The pigment, beads and aggregate shall be uniformly dispressed in
the resin. The material shall be free from all skins, dirt and foreign
objects and shall comply with requirements indicated in following
table (as per Table 800-3 of MORT&H Specifications).
TABLE – 800-3 Proportion of constituents of Marking Material
(Percentage by weight)
Components White Yellow Binder 18.0 min. 18.0 min. Glass Beads 30 – 40 30 – 40 Titanium Dioxide 10.0 min. - Calcium Carbonate and inert fillers
42.0 max. (See note)
Yellow pigments - (See note)
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.317 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Note : Amount of yellow pigment, calcium carbonate and inert fillers
shall be at the option of the manufacturer, provided all other
requirements of this specification are met.
a) Properties :
The properties of thermoplastic material, when tested in
accordance with ASTM D36/BS-3262 (Part-I).
b) Luminance :
White : Daylight luminance at 45 degree – 65% min. as per
AASHTO M 249.
Yellow : Daylight luminance at 45 degree – 45% min. as per
AASHTO M 249.
c) Drying Time :
When applied at a temperature specified by the manufacturer and
to the required thickness, the material shall set to bear traffic in
not more than 15 min.
d) Skid Resistance :
Not less than 45 as per BS 6044.
e) Cracking Resistance at Low Temperature
The material shall show no cracks on application on concrete
blocks.
f) Softening Pointing – 102.5 + 9.50C as per ASTM D 36.
g) Flow Resistance – Not more than 25% as per AASHTO M 249.
h) Yellowness Index – (For white colour) – not more than 0.12 as
per AASHTO M249.
23.3.2.2 Storage lift :
The material shall meet the requirements of these specifications for a
period of one year. The thermoplastic material must also melt
uniformly with no evidence of skins or unmelted particles for the one
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.318 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
year storage period. Any material not meeting the above
requirements shall be replaced by the manufacturer/supplier.
23.3.2.3 Reflectorisation shall be achieved by incorporation of (reflective
glass spheres), the grading and other properties of bottotini shall be
as specified in clause 803.4.3 of MORT & H Specifications.
23.3.2.4 Marking :
Each container of the thermoplastic material shall be clearly and
indelibly marked with the following information.
1. The name, trade mark or other means of identification of
manufacturer
2. Batch number
3. Date of manufacture
4. Colour (white or yellow)
5. Maximum application temperature and maximum safe heating
temperature.
23.3.2.5 Sampling and testing :
The thermoplastic material shall be sampled and tested in accordance
with the appropriate ASTM/BS method. The contractor shall
furnish to the Department a copy of certified test reports from the
manufacturers of the thermoplastic material showing results of all
tests specified herein and shall certify that the material meets all
requirements of this specification.
23.4 REFLECTORISING GLASS SPHERES :
23.4.1 General :
This specification covers two types of glass spheres to be used for
the production of reflectorised pavement markings. Type 1 beads are
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.319 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
those which are a constituents of the basic thermoplastic compound
vide above table and type 2 beads those which are to be sprayed on
the surface.
The glass spheres shall be transparent, colourless and free from
milkness dark particles and excessive air inclusions. These shall
conform to the requirements spelt out in the following clause.
23.4.2 Specific Requirements :
A) Gradation
The glass spheres shall meet the gradation requirements the two type
as given in following table (as per Table 800-4 of MORT&H
Specifications)
TABLE 800 – 4 Gradation Requirements for Glass Beads
Percent Retained Sieve Type 1 Type 2 1.18 mm 0 to 3 - 850 micron 5 to 20 0 to 5 600 micron - 5 to 20 425 micron 65 to 95 - 300 micron - 30 to 75 180 micron 0 to 10 10 to 30 Below 180 micron - 0 to 15
B) Roundness
The glass spheres shall have a minimum of 70 percent true
spheres.
C) Retractive Index :
Glass spheres shall have a minimum refractive index 1.50.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.320 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
D) Free flow properties :
The glass spheres shall be free of hard lumps and clusters and
shall dispense readily under any conditions suitable for paint
stripping. They shall pass the free flow test.
23.5 Methods of tests :
The specific requirements shall be tested with the following
methods:
i) Free-flow test :
Spread 100 gms of spheres evenly in a 100 mm diameter glass
dish. Place the dish in 250mm. inside diameter desicator which is
filled within 25mm of the top of a desicator plate with sulphuric
acid water solution (specific gravity 1.10). Over the desicator
and let it stand for 4 hours at 20 to 29 degree C. Remove sample
from desicator, transfer beads to a pan and inspect for lumps or
clusters. Then pour beads into a clean, dry glass funnel having a
100mm. stem and 6mm orifice. If necessary, initiate flow by
lightly tapping the funnel. The glass spheres shall be essentially
free of lumps and clusters and shall flow freely through the
funnel.
ii) The requirements of gradation, roundness and refractive index of
glass beads and the amount of glass beads in the compound shall
be tested as per BS 6088 and BS 3262 (Part-I).
iii) The contractor shall furnish to the department a copy of certified
test reports from the manufacturer or glass beads showing results
of all tests specified herein and shall certify that the material
meets all requirements of this specification. However, if so
required, these tests may be carried out as directed by the
Engineer.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.321 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
23.6 Application properties of thermoplastic material
The thermoplastic material shall readily get screeded or sprayed at
temperature specified by the manufacturer for respective method of
application to produce a line of specified thickness which shall be
continuous and uniform in shape having clear and sharp edges.
The material upon heating to application temperature shall not exude
fumes, which are toxic, obnoxious or injurious to persons or
property.
23.7 Preparation :
i) The material shall be melted in accordance with the
manufacturer’s instructions in a heater fitted with a mechanical
stirrer to give a smooth consistency to the thermoplastic material
and local overheating will be avoided. The temperature of the
mass shall be within the range specified by the manufacturer, and
shall on no account be allowed to exceed the maximum
temperature of the mass. The molten material should be used as
expeditiously as possible, and for the thermoplastic material
which has natural binders or is otherwise sensitive to prolonged
heating the material shall not be maintained in a molten condition
for more than 4 hours.
ii) After transfer to the laying equipment, the material shall be
maintained within the temperature range specified by the
manufacturer for achieving the desired consistency for laying.
23.8 Properties of finished road marking :
a) The strips shall not be slippery when wet
b) The marking shall not lift form the pavement in freezing weather
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.322 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
c) After application and proper drying the strips shall show no
appreciable deformationor discolouration under traffic and under
road temperature upto 60 degree C.
d) The marking shall not deteriorate by contact with sodium
chloride, calcium chloride or oil drippings from traffic.
e) The strips or marking shall maintain its original dimensions and
position. Cold ductility of the material shall be such as to permit
normal movement with the road surface without chopping or
cracking.
f) The colour of yellow marking shall conform to IS Colour No.356
as given in IS:164-1981.
23.9 Application
Painting shall be done by machine. For locations where painting can
not be done my machine, approved manual methods shall be used
with prior approval of the Engineer. The contractor shall maintain
traffic control while painting operations are in progress so as to cause
minimum inconvenience to traffic compatible with protecting the
workmen.
The thermoplastic material shall be applied hot either be
screeded or sprayed application. After transfer to the laying
apparatus, the material shall be laid at a temperature within the
rage specified by the manufacturer for the particular method of
laying being used. The thermoplastic paint shall be applied to
the pavement by a mobile sprayer which includes spouts. The
spraying equipment used shall provide for heating, (agitation
and controlling the flow of material). The spraying techniques
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.323 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
shall ensure continuous uniformity in the dimensions of the
strips.
The pavement temperature shall not be less than 10 degree C during
application. All surfaces to be marked shall be thoroughly cleaned
of all dust, dirt, grease, oil and all other foreign matter before
application of the paint. The material, when formed into traffic
strips, must be readily renewable by placing on overlay of new
material directly over an old line of compatible material.
Such new material shall so bond itself to the old line that no splitting
or separation takes places.
Thermoplastic paint shall be applied intermittent or continuous lines
of uniform thickness of at least 2.5 mm unless specified otherwise.
Where arrows or letters are to be provided, thermoplastic compound
shall be hand sprayed. In addition to the basic ballotini included in
the material, a further quantity of glass beads of type-2 confirming to
the above noted specifications shall be sprayed uniformly into a
mono layer to the hot paint line in quick succession of the paint
spraying operation. The glass beads shall be applied at the rate of
250 gms. per sq.mtr. area.
The minimum thickness specified in exclusive of surface applied
glass spheres. The method of thickness measurement shall be in
accordance with appendices B and C of BS-3262 (Part 3) – 1987.
The finished lines shall be free from ruggedness on sides and ends
and be in true plan with the general alignment of the carriage way.
The upper surface of the lines shall be level, uniformly and free from
streaks.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.324 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
23.10 Measurement for payment :
The Edge marking broken line markings and speed breakers shall be
measured in sq.metre as shown on the drawings.
23.11 Providing and fixing Eye :
23.11.1 General :
The item provides for providing and fixing Cat’s eye round studs of
ABS Plastic with reflective lenses including preparing round base,
epoxy for fixing and M.S. zinc coated nails for fixing cat’s eye to
road, all as per manufacturer’s specifications and as directed by
Engineer.
23.11.2 Measurement for payment :
The measurement for providing and fixing cat’s eye shall be in
number supplied and fixed.
23.11.3 Rate :
The contract unit rate shall be payment in full for the cost of cat’s
eyes including all materials, fixing on road and all incidentals to
complete the work in accordance with the specifications of the
manufacturer.
__________________ ___________________ Signature of Tenderer Chief Engineer (South)
Date: Date:
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.325 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
PARTICULAR SPECIFICATIONS STORM WATER DRAIN
1.0 GENERAL :
The particular specifications are to be read in conjunction with the
specifications contained in the description of items of Schedule “A”
specification contained in “Standard Specifications” published by
Buildings and Communications Department of Maharashtra, relevant
Indian Standard Specifications. In case of conflicting provisions in
various documents (except Schedule “A”), the provisions in Particular
Specifications shall take precedence over any other documents.
2.0 CLEARING SITE :
The ground over which the Storm Water Drains are to be constructed
shall be cleared from all loose, vegetation, bushes, stumps and all other
objectionable materials. Brushwood, stumps, vegetation etc. shall be
cut flush with the ground. Materials obtained from clearing site shall
be disposed off as directed.
3.0 EXCAVATION
3.1 All excavation under this contract shall be in ordinary soil which
includes, vegetable or organic soil, turf, sand, gravel, loam, clay
including marine clay, mud, peat, black cotton soil, shale, loose and
or compact murum, including back filling, watering, compacting etc.,
complete.
3.1.1 Excavation in hard murum, soft rock and hard rock shall be strata as
defined in Standard Specification of P.W.D. of Govt. of
Maharashtra.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.326 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
3.1.2 Bottom surfaces and sides of all excavations shall be trimmed and
formed to required levels, slopes etc. In addition, bottom surface
shall be watered and rammed.
3.1.3 Any soft spot or sludge shall be dug out and the cavity filled with
approved dry filling well rammed and consolidated.
3.1.4 Excavation material required for filling shall be stacked or dumped
where indicated by the Engineer. Excavated material not required
for filling and any surplus material shall be removed and spread on
the site anywhere within the premises and as directed by the
Engineer or carted away from the site as directed by the Engineer.
Dumping of this surplus material shall be in an orderly manner and
according to the levels/grades as indicated by the Engineer. The cost
of such removal and spreading shall be borne by the Contractor and
held to be included in the Contract Rates.
3.1.5 The Contractor shall, at the contract rates make provision for all
shoring, pumping, dredging, bailing out or draining water whether
subsoil or rain or other water and the excavation shall be kept free of
water while the masonry work or concrete work is in progress and
until the Engineer considers the work well set (Refer IS:3764 Safety
Code for Excavation Work). The sides of trenches shall be kept
vertical and the bottom horizontal and shall be run level throughout
our properly stepped as directed by the Engineer. The Contractor
shall erect and maintain during progress of works temporary fences
around dangerous excavations.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.327 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
3.2 EXCAVATION IN HARD ROCK
Anything that does not come out with shovels and pickaxes but
required blasting, chiseling or wedging for removal shall be treated
as rock. Boulders above 0.5 cu.m. will be treated as rock. Rubble
shall be stacked properly in heaps.
3.2.1 Contractor shall obtain license from District authorities for carrying
out blasting work as well as for obtaining, transporting and storing
explosives as per the “Explosives Rules 1940” or as amended. He
shall purchase the explosives, fuses, detonators etc. only from
licensed dealer. He shall maintain the account of explosive etc.
purchased and used by him. He shall be responsible for safe custody
or proper accounting of explosive materials. Engineer shall have
access to check stores of explosives and accounts thereof. All
precautions shall be taken and all rules complied with.
3.2.2 Where blasting is not practicable or prohibited, excavation shall be
done by wedging or chiseling and it shall be restricted to the quantity
required to the minimum. If trenches exceed those shown in
drawings, the excess quantity shall not be paid for.
3.3 MODE OF MEASUREMENT
a) Measurement shall be as per drawing and dimensions of bed
concrete net without any allowance for increase in bulk. Extra
excavation for working space, on account of slips or falls shall
not be measured, and will include cost for inserting planking,
strutting etc. and filling with soil after removal of planking.
b) Where the ground is not uniform, levels shall be taken before
the start and after completion of the work and quantity of
excavation computed from these levels,
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.328 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
c) Where hard soil and rock are mixed, the excavated rock shall be
stacked separately. The rock shall be measured in stacks and
measured quantities reduced by 40% (to allow for voids), to
arrive at the excavated quantity of rock. From the total
excavation, the quantity of rock excavated shall be deducted to
arrive at the quantity of hard soil.
3.4 RATES FOR EXCAVATION SHALL INCLUDE THE
FOLLOWING PROVISIONS
a) Excavating either straight or curved or plain.
b) Bailing out all water (by pumping or other measures) which
may accumulate in excavations or sites or in trenches or in pits
from rains, springs, underground water, tidal water, broken
water mains, drains, well or any other sources.
c) Setting out works and all profiles, cross heads, boning rods,
staves as well as all tools and plant.
d) All materials and labour required for fencing in, protecting
against risk of accidents to open excavations etc. and for
providing gangways with hand rail across open trenches etc.
where necessary, during the progress of the works.
e) Watching the lighting where necessary and as directed by the
Engineer.
f) Forming ‘Tell Tales’ or ‘Dead Men’ in borrow pits and forming
steps in deep excavation for facility of recording measurements.
g) Planking and strutting of adequate strength designed by
contractor, as directed by Engineer.
h) Excavation for insertion of planking and strutting and filling
with soil after removal of planking and strutting.
i) Removal of slips or falls in excavation.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.329 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
j) Carting away spoil or falls in excavations separating useful
spoil fit for re-use in filling.
k) Cleaning of irregular pockets and dewatering in excavation.
l) Carting of all unuseful excavated stuff and disposing of as
directed by Engineer.
m) Back filling the trenches including extra excavation done for
working space, safety etc. generally by excavated material (free
from black cotton soil, clay, boulders etc.) or by selected soil
brought from out side including labour, compaction, watering
etc. complete as directed by Engineer.
4.0 Providing trap rubble filling behind the walls/abutments/
returns including filling voids with gravel, hand packing and
compacting the rubble etc. complete.
4.1 MATERIALS :
The stones to be used shall be broken rubble with fairly regular shape
and not weathered or decayed stones. Stones shall be selected for their
large size. The stones shall be about 0.015 cu.m. or 15 litres in size
unless otherwise ordered by the Engineer, having regard to the nature
of the stone being quarried. The stones to be used for wedging in the
joints between stones shall be chips of such size as to snugly fill up the
interstices in most cases. All suitable rubble obtained from foundation
excavation shall be made use of first. The rate to be charged for this
rubble to the contractor shall be that which is entered in the schedule A
and if not so entered, the Divisional schedule rate current at the time of
tender.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.330 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
4.2 DETAILS OF CONSTRUCTION :
Dewatering if necessary shall be done according to specification No.
BR.4 of Red Book. The bed on which rubble filling is to be laid shall
be cleared of all loose materials levelled and consolidated and got
approved by the Engineer before starting rubble filling. Rubble filling
behind abutments, returns or wings shall be laid in regular horizontal
layers of not more than 30 cm. in thickness closely packed and
compacted and firmly set with their broadest face downwards. The
interstices between adjacent stones shall be wedged in with spalls of
the proper size, well driven in with hammers or wooden mallets to
ensure tightly packed layers. Such wedging shall be carried on
simultaneously with the placing in position of the larger stones in each
layer and shall in no case be permitted to fall behind. Each layer shall
be packed and completed before the upper layer is started.
Backfilling required to be done if any, on the river-side of the
abutment, wings or returns shall be done simultaneously with the
filling on the landside. Special precautions should also be taken to
prevent wedging action against masonry. The concrete shall have been
fully cured before rubble filling.
4.3 ITEM TO INCLUDE :
1) Supplying broken rubble and spalls of approved quality and size.
2) All labour, materials and use of equipment and tools for properly
laying, hand packing and compacting the rubble.
3) Any other incidental charges to complete the work as per
sanctioned plan including dewatering unless separately provided
in the tender.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.331 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
4.4 MODE OF MEASUREMENT & PAYMENT :
Rubble filling shall be measured in cubic metres limiting the
dimensions to those shown in the plan or as directed by the Engineer.
The dimensions shall be measured to two places of decimals in metres
and quantities worked out to two places of decimals of a cubic metre.
No deduction shall be made for voids.
The contract rate shall be for a unit of one cubic metre.
5.0 SPECIFICATIONS FOR CAST IN SITU CEMENT
CONCRETE WORKS
5.1 MATERIAL :
Ready Mix Concrete shall be used for all in situ cement concrete
works which should be procured from CIDCO approved plants
only.
5.1.1 Cement
Cement shall be ordinary Portland Cement conforming to IS and
shall be of grade 43/53.
Each batch shall be accompanied with a test certificate of the factory.
Also it shall be tested before use to ascertain its strength, setting
time, etc. In case cement has been stored for over 6 months or for
any reasons the stored cement shows signs of deterioration or
contamination, it shall be tested as per the direction of the Engineer
prior to use in the works.
Cement shall be stored in such locations so as to prevent
deterioration due to moisture dampness. A dry and water proof shed
shall be best suited for this. Bags shall be stacked on rigid water-
proof platforms about 15 to 20 cm clear above the floors and 25 to
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.332 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
35 cm clear or away from the surrounding walls. A maximum high
stack of 12 bags is permitted. Stacks shall be so arranged that the
first batches are used first, (FIFO) and that they permit easy access
for inspection and handling.
5.1.2 Coarse Aggregate
Coarse aggregate shall be obtained from natural sources such as
stone, gravel, etc., crushed or uncrushed or a combination thereof
from approved quarries. Aggregate shall be hard, strong, dense,
durable, clean and free from veins and adherent coatings. It shall be
free from soft, feeble, thin, elongated or laminated pieces and shall
be roughly cubical in shape. It shall consist of coarse material, most
of which is retained on 4.75 mm IS sieve.
Coarse aggregate shall not contain any harmful material such as iron,
pyrites, coal, mica, shale or similar laminated material; neither shall
it contain clay, alkali, soft fragments, sea shells, organic impurities,
etc. in such quantities that adversely affects the strength and
durability of the concrete. In addition to the above, in reinforced
concrete the aggregate shall not contain any material, which might
attack the reinforcement. The maximum quantities of deleterious
materials in the coarse aggregate, when determined in accordance
with IS 2386 Part I and Part II, “Method of test for aggregates for
concrete” shall not exceed the limits laid down in Table 1 of
annexure.
Aggregate crushing value, impact value, abrasion value and
soundness of aggregate shall respectively be in accordance with Para
3.3, 3.4, 3.5 and 3.6 of IS 383.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.333 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Grading of coarse aggregate shall be in conformity with the
requirements laid down in IS 383. See Table- 2 and Table 3 of
Annexure.
It shall be tested prior to the approval of the Engineer from an
approved testing laboratory. In case available aggregates do not
meet certain requirements of IS 383 or any other specification,
required processing shall be carried out by the Contractor at his cost.
No extra cost towards these processes, treatment or combination of
both shall be paid. It shall be the duty or the Contractor to make sure
that aggregate material received by him is from Government
approved quarries and with fully paid royalties, taxes duties, etc. as
may be in force from time to time for respective locations.
Aggregate shall be stored in such a way that it does not get mixed
with mud, grass, vegetables and other foreign matter. The best way
is to have a hard surface platform made out of concrete, bricks or
planks. It should be to the approval of the Engineer.
Coarse aggregate shall have a minimum specific gravity of 2.06
(Saturated surface dry basis). Aggregate below this specific gravity
shall not be used without the special permission of the Engineer.
Once a specific source of supply of coarse aggregate is approved, the
source shall not be changed without the prior approval of the
Engineer.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.334 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
5.1.3 Fine Aggregate
Nature sand deposited by stream or glacial agencies as a result of
disintegration of rock is the best form of fine aggregate. The fine
aggregate shall conform to following standards. Preferably only
river sand shall be used.
i) For plain and Reinforced
concrete
IS 383 Specification for coarse and
fine aggregates from natural
sources for concrete
Sand shall be hard, durable, clean and free from adherent coatings
and organic matter and shall not contain any appreciable amount of
clay. Sand shall not contain harmful impurities such as iron, pyrites,
coal particles, lignite, mica shale or similar laminated material,
alkali, and organic impurities in such form or quantities as to affect
the strength or durability of concrete or mortar. Also it should not
contain any material liable to attack the steel reinforcement.
When tested as per IS 2386 part I and Part II, fine aggregate shall not
exceed permissible quantities of deleterious materials as given in
Table 1 of Annexure.
Fine aggregate shall be thoroughly washed at site with clean fresh
water such that the percentage of all deleterious material is within the
permissible limits laid down.
Grading of fine aggregate shall conform to IS and shall fall within
limits of one of the four zones given in Table 4 of IS 383 and of
Annexure.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.335 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Damp and moist sand increases the volume and is called bulking.
Due allowance is to be made while preparing the mixes based on
volume measurements. It shall be determined as per IS 2386 part III
Appendix A. For rough guidance, Table 5 of Annexure gives the
relation between moisture content and percentage of bulking.
Aggregate shall be stored in such a way that it does not get mixed
with mud, grass, vegetables and other foreign matter. The best way
is to have a hard surface platform made out of concrete, bricks or
planks. It should be to the approval of the Engineer.
5.1.4 Water
Water used for mixing and curing shall be Potable conforming to IS,
clean, reasonably clear and free from objectionable quantities of silt,
oils, alkalis, acids, salts so as not to weaken mortar, or concrete or
cause efflorescence or attack the steel in RCC while curing. It shall
be free of elements, which significantly affects the hydration reaction
or otherwise interferes with hardening of concrete during curing, or
those elements which produce objectionable stains or deposits.
Potable water is generally satisfactory but it shall be tested prior to
use in the works.
Water tested shall be in accordance with IS 3025. Maximum
permissible limits of deleterious materials in water; as given in IS
456 are reproduced for ready reference in Table 6 of annexure.
The PH value of water shall not be less than 6 and more than 7.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.336 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Water storage tanks shall be such as to prevent any deleterious
materials getting mixed with it.
5.1.5 Batching of Concrete ingredients :
For all structural concreting, only Ready Mixed Concrete (RMC)
manufactured at site, weigh batching plant or obtained from
approved R.M.C. supplying agencies is mandatory. The R.M.C.
supplying agency will supply mix design details in advance before
start of delivery.
5.2 Transporting, placing, compacting, finishing and curing :
Transporting, placing, compacting, finishing and curing of concrete
shall be in accordance with IS:456-2000.
5.2.1 Transporting :
For all RMC concreting, the concrete after discharge from batching
plant will be loaded in transit mixers and kept continuously agitated
while mix is in transit. At destination the mix will be unloaded in to
steel plates, so that concrete does not get mixed with earth or any
other material detrimental to concrete.
5.2.2 Placing :
The concrete produced in RMC plant/batching plant, when
discharged from transit mixer shall be kept continuously agitated and
discharged to destination placing point. Any such arrangement
should be approved from the Engineer in advance before execution.
High velocity discharge of concrete causing segregation of mix shall
be avoided. The concrete shall be placed in the forms gently and not
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.337 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
dropped from the height exceeding 1.5 m. Each batch of concrete
will be placed in layer. Each layer of concrete shall be compacted
fully before the succeeding layer is placed and separate batches shall
be placed and fully compacted before the layer immediately below
has taken initial set. The layers should be sufficiently shallow, to
permit stitching of two layers together by vibration.
Concreting of any portion or section of the work shall be carried out
in one continuous operation and no interruption of concreting work
will be allowed without approval of the Engineer.
Plain concrete in foundations shall be placed, in direct contact, with
the bottom of excavation, the concrete being deposited in such a
manner, as not to get mixed with the earth. The concrete placed
below the ground level shall be protected from falling earth during
and after placing. Concrete placed in ground containing deleterious
substances, shall be kept free from contact, with such ground and
with water draining there from during placing and for a period of 7
days or otherwise instructed there after. Approved means shall be
taken to protect immature concrete from damage by debris, excessive
loading, abrasion, vibrations, deleterious ground water, mixing with
earth and other materials and other influences, that may impair
strength and durability of concrete.
Before starting of work contractor will get the concrete pouring
programme and its sequence approved by Engineer to avoid cold
joints.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.338 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
5.2.3 Compaction :
External, Internal (needle) and surface (screed board) vibrators of
approved make shall be used for compaction of concrete.
a) External/internal vibrators shall be used for compaction of
concrete in foundations, columns etc. For sections such as slabs,
the concrete shall be compacted by external, internal and surface
type vibrators, depending on the thickness of layer to be
compacted. 25mm, 40mm and 60mm dia internal vibrators may
be used. The concrete shall be compacted by use of appropriate
diameter vibrator by holding the vibrator in position until :
i) Air bubbles cease to come to surface
ii) Resumption of steady frequency of vibrator after short
period of dropping the frequency, when the vibrator is first
inserted.
iii) The tone of the vibrator becomes uniform
iv) Flattened, glistening surface, with coarse aggregates
particles blended into it, appears on the surface.
After the compaction is completed, the vibrator should be
withdrawn slowly from concrete so that concrete can flow in
to the space previously occupied by the vibrator. To avoid
segregation during vibration, the vibrator shall not be
dragged through the concrete nor used to spread the
concrete. The vibrator shall be made to penetrate into layer
of fresh concrete below if any, for a depth about 150mm.
The vibrator shall be made to operate at regular pattern of
spacing. The effective radii of action will overlap,
approximately half a radius to ensure complete compaction.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.339 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
v) To secure even and dense surfaces free from aggregate
pockets, vibration shall be supplemented by tamping or
rodding by hand in the corners of forms and along the form
surfaces while the concrete is plastic.
vi) A sufficient number of spare vibrators shall be kept readily
accessible to the place of deposition of concrete to assure
adequate vibration in case of breakdown of those in use.
25mm diameter immersion vibrators shall be used in thin
4) All labours, materials, taxes and use of equipments and tools for
satisfactory completion of item.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.367 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
7.5 Mode of Measurement and payment :
The contract rate shall for one meter or part there of pipe actually
laid. The measurement shall be over all the fittings along with the
centre line from end to end.
__________________ ___________________ Signature of Tenderer Chief Engineer (South)
Date: Date:
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.368 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Checklist for Ready Mix Concrete Supply of Concrete (RMC)
Name of work : C.A.No. : Name of contractor/client : Sr. No.
Description Detail Information
1. Name of RMC manufacturer with plant address & telephone nos.
2. Name of Plant In charge with qualification & Experience
3. Date of commissioning of RMC plant
4. RMC Plant details a) Capacity of plant
Design Actual Output
b) Whether plant fully automatic/Semi automatic
c) Conveyor belt for loading aggregate
d) Aggregate bin with various compartments for different aggregate
e) Mixer type f) No. of Transit Mixers
with capacity
g) No. of pumps h) No. of placer boom
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.369 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Sr. No.
Description Detail Information
i) i) Separate silos with capacity for Cement ii) Fly ash
j) Water storage arrangement
k) Plasticizer arrangement l) Arrangement for
alternate power supply
m) Arrangement for maintenance of P & M
n) Storage capacity for raw materials
o) Arrangement for curing tank & frequency of changing water
p) Calibration frequency of plant with traceability (every three months)
q) Whether you observe the accuracy/ sensitivity of measuring equipments within the limits of IS 4926:2003
r) Details of Calibration frequency of various testing equipments with traceability & its record
Quantity of RMC manufactured daily
M20
M25
M30
5.
M35
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.370 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Sr. No.
Description Detail Information
Source of materials
Cement-whether bulk supply
Coarse aggregate Fine aggregate-Sand
Crushed Sand
Water Chemical Admixture
6.
Mineral Admixture (Fly ash)
7. Details of quality control testing & records of various constituents materials
A) Cement (IS 8112, IS 12269)
Whether MTC (weekwise) available
Fineness Soundness IST & FST Consistency Compressive strength of
cement mortar cubes-no. of cubes
Chemical tests Physical & chemical
testing at external lab. & its frequency
B) Coarse Aggregate (IS 383 : 1970)
Gradation
Specific gravity Flakiness &
elongation Index
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.371 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Sr. No.
Description Detail Information
Impact value/ Crushing value/ Abrasion value
Soundness Water absorption Alkali Aggregate
reactivity test
C) Fine aggregates (IS 383 :1970)
Gradation Specific gravity
Determination of clay, fine silts,& fines dust
Free moisture content
Soundness Water absorption Organic impurities
D) Admixtures (IS 9103 : 1999)
Whether MTC is available for every batch & brand
Dry Material content pH value
Relative Density Compatibility Ash content Chloride ion content Performance test for
slump retention & compressive strength test at 24hr. on control mix.
Periodical testing at external lab. For crosscheck
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.372 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Sr. No.
Description Detail Information
E) Fly ash (IS 3812 : 2003)
Whether MTC available Physical properties
1. Specific surface 2. Residue on 45 micron IS sieve 3. Lime reactivity 4. Comp.Strength 5. Soundness
Chemical properties Chemical Analysis
Periodical testing at external lab. For crosscheck
F) Water (IS 456:2000, IS 3025:1964)
pH value Sulphates Chlorides Organic matter
Inorganic matter Suspended matter Periodical testing at
external lab. For crosscheck
G) Concrete (RMC) a) Mix Design & Trial
mixes Method of design (whether as per IS or any other) b. Whether it is as per
requirement of client or your own
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.373 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Sr. No.
Description Detail Information
b) Daily check on preparation of starting slip for each of grades based on adjustments of moisture content or water absorption (at 7,11,15,19 hr.) as per schedule
c) Analysis of fresh concrete Mix as per IS 1199-1959.
d) Temperature of the fresh Concrete Mix
e) Slump at the Plant
f) Check for Density for each grade
g) Cube Compressive Strength & Acceptability Records of tests
h) Permeability apparatus i) NDT equipments & co-
relation with cube compressive strength
j) Cement content test
k) Chemical analysis of concrete samples
l) Statistical analysis of test results & modification to the mix proportion based on standard deviation of plant
m)
Special Precautions taken a. During Rainy season b. During Hot season
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.374 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Sr. No.
Description Detail Information
8. Technical staff available at plant with qualification & experience
9. Technical Staff to accompany transit mixer with qualification & experience
10. Time of availability of RMC supply
11. Delivery ticket as per Annex G (Cl.9.4) of IS 4926-2003 (Alongwith every load/transit mixer)
12. Test frequency for all ingredients of concrete-whether as per IS 4926-2003
13. Any incidents of failure in quality supplied
14. Any incidents of failure in timely supply
15. Details of works where RMC used Major Clients
16. Any other information 17. Third Party Inspection
Name of agency, Frequency & Report.
18. Monitoring of Ready mixed Concrete as per IS 4926 :2003
a) If more than one admixture is used, confirmation of their compatibility
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.375 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Sr. No.
Description Detail Information
b) IST & FST of concrete when admixture is used at adopted dosage (As per IS 8142)
c) Time of transportation (Shall not exceed 2 hours for normal case.)
d) Frequency of Compressive strength (One sample (3 specimens) for every 50 Cum or 50 batches whichever is greater.)
e) Any additional compliance criteria shall be declared to the producer by the purchaser prior to supply & shall be mutually agreed upon.
f) The action to be taken in case of non-compliance shall be declared & mutually agreed upon.
Also enclosed herewith Annex.-I i.e. Material Testing requirements as per IS 4926 : 2003. Signature of RMC supplier M/s. Name :
Checked by
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.376 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Annexure-I
MATERIAL TESTING REQUIREMENTS
AGGREGATES
Sr. No.
Aggregate Property/Parameter
Type of Aggregate
Test Frequency
Requirement for normal monitoring
1. Grading i. Sand/Fine aggregate ii. Coarse aggregate
As per IS:383 / MORT&H
Last 8 results conform to IS 383
2. Particle density Oven dry Saturated surface dry Apparent
All types
3 Monthly
Last 4 results + 0.04
3. Absorption All types 3 Monthly Last 4 results + 0.04 %
4. Bulk density Loose Compacted
All types All types
Monthly Monthly
Last 4 results + 75Kg/Cum
5. Fines (Silt) content Sand Coarse
Weekly Monthly
Last 10 results < 75 % Maximum allowed.
6. Aggregate Impact Value Coarse Once per source / every change of source
_____
7. 10% fines Coarse Yearly _____
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.377 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
Sr. No.
Aggregate Property/Parameter
Type of Aggregate
Test Frequency
Requirement for normal monitoring
8. Flakiness Coarse Monthly Last 3 results conforms to standard
9. Aggregate abrasion value (Los Angeles Method)
Coarse Yearly/ Source change
_______
10. Soundness Fine & Coarse Yearly/ Source change
_______
11. Potential Alkali aggregate reactivity including Petrography
Fine & Coarse 5 Yearly/ Source change
_______
All other materials cement, water, admixtures shall be tested as per requirements of IS 456 : 2000.
CIDCO OF MAHARASHTRA LIMITED. Sl.Pg.No.378 C.A.NO.12/CIDCO/EE(KHR-II)/2012-13
LIST OF APPROVED MAKES AND BRANDS OF MATERIALS
The contractor should distinctly understand that it will not be their prerogative to insist on using a particular make/brand from amongst the approved ones. The final selection will have to be done with the approval of Engineer. The provision will apply where contractors do not state their choice of materials while submitting tenders. The list given below is only indicative and not restricted to brands mentioned. Other equivalent brands may be approved at the discretion of the Engineer.
Sr. No.
Material Make/Brand
1. Construction Chemicals Sunanda Specialty Coating Pvt. Ltd., BASF Construction Chemicals (I) Pvt. Ltd., Pidilite Industries Ltd., Tulsi Chemicals & Paints Pvt. Ltd., The Structural waterproofing Co. Pvt. Ltd.
