BID DOCUMENT I I N N T T E E G G R R A A T T E E D D C C O O A A S S T T A A L L Z Z O O N N E E M M A A N N A A G G E E M M E E N N T T P P R R O O J J E E C C T T S S T T A A T T E E P P R R O O J J E E C C T T M M A A N N A A G G E E M M E E N N T T U U N N I I T T O O D D I I S S H H A A Peripheral Development of Bhabakundeleswar Temple at Manikpatna under ICZMP (Package No.- ICZMP /DoC/W/06/2013-14) At- Manikpatna of Puri District. 2013 –14 ON BEHALF OF Director, Culture-cum-Nodal Officer, ICZM Project, Odisha State Archaeology, 1 st Floor, Sanskruti Bhawan, Bhubaneswar-14
Integrated Coastal Zone Management Society of ODISHA,
Bhubaneswar
Memo No. Dt.
Copy to Director, Culture-cum-Nodal Officer, ICZM Project, Odisha State Archaeology, 1st Floor, Sanskruti Bhawan,
Bhubaneswar-14 along with soft copy (in CD)of the approved bid document is attached herewith for
information and necessary action. This is with reference to his Lr. No.578 & 579 Dt.21.11.2013 and No.592
Dt.26.11.2013.
Addl. Project Director(F&A)
Integrated Coastal Zone Management Society of ODISHA,
Bhubaneswar
Package No. Name of the Work Approximate
Value of Work (in Lakhs INR.)
Bid security (in INR.)
Cost of Bid Document (in INR.)
Period of Completion
1 2 3 4 5 6
ICZMP/D0C/W/05/2013-14
Peripheral Development of
Ganjam Fort at Potagarg of
Dist-Ganjam.)
238.25 2,38,300 5250
15 months ( Including
Rainy Season)
ICZMP/D0C/W/06/2013-14
Peripheral Development of
Bhabakundaleswar Temple
at Manikpatna of Dist: Puri 65.01 65,000 2100
09 months ( Including
Rainy Season)
ICZMP/D0C/W/07/2013-14
Peripheral Development of
Harihardev Temple at Nairi
of Dist: Khurda 65.96 66,000 2100
09 months ( Including
Rainy Season)
ICZMP/D0C/W/08/2013-14
Peripheral Development of
Baliharchandi Temple at
Baliharchandi of Dist: Puri 204.17 2,04,200 5250
12 months ( Including
Rainy Season)
ICZMP/D0C/W/21/2013-14
Peripheral Development of
Bateswar Temple at
Kantiagarh of Dist: Ganjam 103.74 1,03,800 4200
09 months ( Including
Rainy Season)
ICZMP/D0C/W/23/2013-14
Peripheral Development of
Jagannath Temple at Pentha
of Dist: Kendrapara 101.69 1,00,200 4200
09 months ( Including
Rainy Season)
ICZMP/D0C/W/22/2013-14
Peripheral Development of
British Cemetery at Barapalli
of Dist: Ganjam 26.77 26,800 1050
04 months ( Including
Rainy Season)
SECTION 1: INSTRUCTIONS TO BIDDERS
(ITB)
Section 1: Instructions to Bidders
Table of Clauses
A. General Page No. D. Submission of Bids Page No.
1. Scope of Bid 10 19. Sealing and Marking of Bids 16
2. Source of Funds 10 20. Deadline for Submission of Bids 16
3. Eligible Bidders 10 21. Late Bids 17
4. Qualification of the Bidder 10 22. Modification and Withdrawal of Bids 17
5. One Bid per Bidder 13
6. Cost of Bidding 13
7. Site Visit 13
B. Bidding Documents E. Bid Opening and Evaluation
8. Content of Bidding Documents 13 23. Bid Opening 17
9. Clarification of Bidding Documents 13 24. Process to be Confidential 17
10. Amendment of Bidding Documents 14 25. Clarification of Bids 17
26. Examination of Bids and Determination
of Responsiveness 18
27. Correction of Errors 18
C. Preparation of Bids 28. Currency for Bid Evaluation
29. Evaluation and Comparison of Bids 18
11. Language of Bid 14 30. Preference for Domestic Bidders
12. Documents Comprising the Bid 14
13. Bid Prices 14 F. Award of Contract
14. Currencies of Bid and Payment 15
15. Bid Validity 15 31. Award Criteria 19
16. Bid Security 15 32. Employer's Right to Accept any Bid and
to Reject any or all Bids 19
17. Alternative Proposals by Bidders 16 33. Notification of Award 19
18. Format and Signing of Bid 16 34. Performance Security 19
35. Advance Payment and Security 20
36. Adjudicator 20
37. Corrupt or Fraudulent Practices 20
A. General
1. Scope of Bid
1.1 The Project Director, Integrated Coastal Zone Management Society of ODISHA., Bhubaneswar,
(referred to as Employer in these documents) invites bids for the construction of works (as defined in these
documents and referred to as "the works") detailed in the table given in IFB. The bidders may submit bids for
any or all of the works detailed in the table given in IFB.
1.2 The successful bidder will be expected to complete the works by the intended completion date specified in the
Contract data.
2. Source of Funds
2.1 The Government of India has received a credit from International Development Association‘ (hereinafter
interchangeably called ―the Bank‖) towards the cost of Integrated Coastal Zone Management Project and
Government of ODISHA intends to apply a part of the funds to cover eligible payments under the contract for the
Works. Payments by the Bank will be made only at the request of the borrower and upon approval of the Bank in
accordance with the Credit Agreement, and will be subject in all respects to the terms and conditions of that
Agreement. Except as the Bank may specifically otherwise agree, no party other than the borrower shall derive
any rights from the Credit Agreement or have any rights to the credit proceeds.
2.2 The credit agreement prohibits a withdrawal from the credit account for the purpose of any payment to persons or
entities, or for any import of goods, if such payment or import, to the knowledge of the Bank, is prohibited by a
decision of the United Nations Security Council, taken under Chapter VII of the Charter of the United Nations.
3. Eligible Bidders
3.1 This Invitation for Bids is open to all bidders from the eligible countries as defined under the IBRD Guidelines
for Procurement. Any materials, equipment, and services to be used in the performance of the Contract shall
have their origin in the eligible source countries.
3.2 All bidders shall provide in Section 2, Forms of Bid and Qualification Information, a statement that the Bidder is
not associated, nor has been associated in the past, directly or indirectly, with the Consultant or any other entity
that has prepared the design, specifications, and other documents for the Project or being proposed as Project
Manager for the Contract. A firm that has been engaged by the Borrower to provide consulting services for the
preparation or supervision of the works, and any of its affiliates, shall not be eligible to bid.
3.3 Government-owned enterprises in the Employer‘s country may only participate if they are legally and financially
autonomous, operate under commercial law and are not a dependent agency of the Borrower or Sub-borrower.
3.4 Bidders shall not be under a declaration of ineligibility for corrupt and fraudulent practices issued by the Bank in
accordance with sub-clause 37.1.
4. Qualification of the Bidder
4.1 All bidders shall provide in Section 2, Forms of Bid and Qualification Information, a preliminary description of
the proposed work method and schedule, including drawings and charts, as necessary.
4.2 In the event that Pre-qualification of potential bidders has been undertaken, only bids from prequalified bidders
will be considered for award for Contract. These qualified bidders should submit with their bids any information
updating their original prequalification applications or, alternatively, confirm in their bids that the originally
submitted prequalification information remains essentially correct as of date of bid submission. The update or
confirmation should be provided in Section 2.
4.3 If the Employer has not undertaken prequalification of potential bidders, all bidders shall include the following
information and documents with their bids in Section 2:
(a) copies of original documents defining the constitution or legal status, place of registration, and principal
place of business; written power of attorney of the signatory of the Bid to commit the Bidder;
(b) total monetary value of construction work performed for each of the last five years;
(c) experience in works of a similar nature and size for each of the last five years, and details of works under
way or contractually committed; and clients who may be contacted for further information on those
contracts;
(d) major items of construction equipment proposed to carry out the Contract;
(e) qualifications and experience of key site management and technical personnel proposed for the Contract;
(f) reports on the financial standing of the Bidder, such as profit and loss statements and auditor's reports for
the past five years;
(g) evidence of adequacy of working capital for this contract (access to line (s) of credit and availability of
other financial resources);
(h) authority to seek references from the Bidder's bankers;
(i) information regarding any litigation or arbitration resulting from contracts executed by the Bidder in the
last five years or currently under execution. The information shall include the names of the parties
concerned, the disputed amount, cause of litigation, and matter in dispute;
(j) proposals for subcontracting components of the Works which in aggregate add to more than 20 percent of
the Bid Price (for each, the qualifications and experience of the identified sub-contractor in the relevant
field should be annexed; no vertical splitting of work for sub-contracting is acceptable); and
(k) the proposed methodology and program of construction including Environmental Management Plan,
backed with equipment, materials and manpower planning and deployment, duly supported with broad
calculations and quality control procedures proposed to be adopted, justifying their capability of execution
and completion of the work as per technical specifications within the stipulated period of completion as
per milestones
4.4 „Bids from Joint ventures are not acceptable‟.
4.5 A. To qualify for award of the contract, each bidder in its name should have in the last five years i.e
2008-2009 to 2012-2013:*
(a) Achieved, in at least one financial year, a minimum annual financial turnover (in all classes of civil
engineering construction works only) of Rs. 65.00 lakh @
b) (i) Satisfactorily completed(not less than 90 % of contract value) , as a prime contractor, (or as
subcontractor duly certified by the employer/main contractor) at least one similar work (Civil
construction/Peripheral Development) of value not less than Rs.60.00 lakh .
(c) Executed in any one year, the following minimum quantities of work:
- Reinforced Cement Concrete/ PCC (all grades) 60 cum
- HG Stone Masonry/Brick Work 20 cum
- Paver Block/Tiled Flooring 500 Sqm
Small eye Laterite Stone Masonary 20cum
Sandstone Masonary 30cum
(d) The contractor or his identified sub-contractor should possess required experience and key personnel like
(i)Temple Mason for executing the Sandstone Masonary & Small eye Laterite stone masonary and should
have executed similar works totalling Rupees.5.00 lakh in any one year.
(e) Electrical Work: The bidder or his identified sub-contractor should possess required valid license for executing
building electrification works and should have executed minimum1 (one) similar electrical work worth a minimum of
Rs. 1.14 Lakh (completion certificate from client to be submitted along with the bid).
(f) Sanitary & Plumbing Work: The bidder or his identified sub-contractor should possess the required valid
license for executing the water supply/sanitary engineering/ plumbing works for the commercial sector and should have
executed at least 1 (one) similar water supply/sanitary engineering/ plumbing work worth at least Rs.1.71 Lakh
(completion certificate from client to be submitted along with the bid).
(@)at 2013-2014 * price level. Financial turnover and cost of completed works of previous years
shall be given weightage of 10% per year based on rupee value to bring them to 2013-2014 price
level
4.5 B. Each bidder should further demonstrate:
B. Each bidder should further demonstrate:
(a) Availability (either owned or leased or by procurement against mobilization advances) of the following
key and critical equipment for this work:
Item Capacity / type No/s.
Truck/ Tripper – 10 T 2
Mechanical Concrete
Mixers
0.25 m3 (or 10/7 cft) 3
Needle/Immersion
Vibrators(fuel-
operated/electric)
25 mm / 40 mm 3
Water Pump 1 H.P. 3
NOTE:
Based on the studies, carried out by the Engineer the minimum suggested major equipment to attain the
completion of works in accordance with the prescribed construction schedule are shown in the above list.
The bidders should, however, undertake their own studies and furnish with their bid, a detailed
construction planning and methodology supported with layout and necessary drawings and calculations
(detailed) as stated in clause 4.3 (k) above to allow the employer to review their proposals. The numbers,
types and capacities of each plant/equipment shall be shown in the proposals along with the cycle time for
each operation for the given production capacity to match the requirements.
(b) availability for this work of a Project Manager( with a minimum educational qualification of Degree in
Civil engineering) with no less than five years' experience in construction of similar civil engineering
works on full-time basis and other key personnel with adequate experience as required; and
(c) liquid assets and / or availability of credit facilities of no less than Rs 22.00 Lakhs in the format given
in Section 2.
(Credit lines / letter of credit / certificates from Banks for meeting the funds requirement etc.)
4.5 C. To qualify for a package of contracts made up of this and other contracts for which bids are invited
in the IFB, the bidder must demonstrate having experience and resources sufficient to meet the aggregate
of the qualifying criteria for the individual contracts.
4.6 Sub-contractors' experience and resources shall not be taken into account in determining the bidder's compliance
with the qualifying criteria except to the extent stated in 4.5 (A) above
4.7 Bidders who meet the minimum qualification criteria will be qualified only if their available bid capacity is more
than the total bid value. The available bid capacity will be calculated as under:
Assessed Available Bid capacity = ( A*N*1.5 - B ) where
A = Maximum value of civil engineering works executed in any one year during the last five years (updated to
2013-14 price level) taking into account the completed as well as works in progress.
N = Number of years prescribed for completion of the works for which bids are invited.
B = Value, at 2013-14 price level, of existing commitments and on-going works to be completed during the
next 09 months.
Note: The statements showing the value of existing commitments and on-going works as well as the stipulated
period of completion remaining for each of the works listed should be countersigned by the Engineer in
charge, not below the rank of an Executive Engineer or equivalent.
4.8 Even though the bidders meet the above qualifying criteria, they are subject to be disqualified if they have:
- made misleading or false representations in the forms, statements and attachments submitted in proof of
the qualification requirements; and/or
- record of poor performance such as abandoning the works, not properly completing the contract,
inordinate delays in completion, litigation history, or financial failures etc.; and/or
- participated in the previous bidding for the same work and had quoted unreasonably high bid prices and
could not furnish rational justification to the employer.
5. One Bid per Bidder
5.1 Deleted.
6. Cost of Bidding
6.1 The bidder shall bear all costs associated with the preparation and submission of his Bid, and the Employer will
in no case be responsible and liable for those costs.
7. Site visit
7.1 The Bidder, at the Bidder‘s own responsibility and risk is encouraged to visit and examine the Site of Works and
its surroundings and obtain all information that may be necessary for preparing the Bid and entering into a
contract for construction of the Works. The costs of visiting the Site shall be at the Bidder's own expense.
B. Bidding Documents
8. Content of Bidding Documents
8.1 The set of bidding documents comprises the documents listed in the table below and addenda issued in
accordance with Clause 10:
Invitation for Bids
Section 1 Instructions to Bidders
2 Forms of Bid and Qualification Information
3 Conditions of Contract
4 Contract Data
5 Specifications
6 Drawings
7 Bills of Quantities
8 Forms of Securities
8.2 Of the three sets of the bidding documents supplied, two sets should be completed and returned with the bid.
9. Clarification of Bidding Documents
9.1 A prospective bidder requiring any clarification of the bidding documents may notify the Employer in writing
or by cable (hereinafter "cable" includes telex and facsimile) at the Employer's address indicated in the
invitation to bid. The Employer will respond to any request for clarification which he received earlier than 15
days prior to the deadline for submission of bids. Copies of the Employer's response will be forwarded to all
purchasers of the bidding documents, including a description of the enquiry but without identifying its source.
9.2 Pre-bid meeting
9.2.1 The bidder or his official representative is invited to attend a pre-bid meeting which will take place at Office of
the The Project Director, ICZMP – Odisha, Bhubaneswar as per the date noted in ITB
9.2.2 The purpose of the meeting will be to clarify issues and to answer questions on any matter that may be raised at
that stage.
9.2.3 The bidder is requested to submit any questions in writing or by cable to reach the Employer not later than one
week before the meeting.
9.2.4 Minutes of the meeting, including the text of the questions raised (without identifying the source of enquiry)
and the responses given will be transmitted without delay to all purchasers of the bidding documents. Any
modification of the bidding documents listed in Sub-Clause 8.1 which may become necessary as a result of the
pre-bid meeting shall be made by the Employer exclusively through the issue of an Addendum pursuant to
Clause 10 and not through the minutes of the pre-bid meeting.
9.2.5 Non-attendance at the pre-bid meeting will not be a cause for disqualification of a bidder.
10. Amendment of Bidding Documents
10.1 Before the deadline for submission of bids, the Employer may modify the bidding documents by issuing
addenda.
10.2 Any addendum thus issued shall be part of the bidding documents and shall be communicated in writing to all
the purchasers of the bidding documents. Prospective bidders shall acknowledge receipt of each addendum in
writing to the Employer.
10.3 To give prospective bidders reasonable time in which to take an addendum into account in preparing their bids,
the Employer shall extend as necessary the deadline for submission of bids, in accordance with Sub-Clause
20.2 below.
C. Preparation of Bids
11. Language of the Bid
11.1 All documents relating to the bid shall be in the English language.
12. Documents comprising the Bid
12.1 The bid submitted by the bidder shall comprise the following:
(a) The Bid (in the format indicated in Section 2).
(b) Bid Security;
(c) Priced Bill of Quantities;
(d) Qualification Information Form and Documents;
(e) Certificate of VAT clearance.
and any other materials required to be completed and submitted by bidders in accordance with these
instructions. The documents listed under Sections 2, 4 and 7 of Sub-Clause 8.1 shall be filled in without
exception.
12.2 Bidders bidding for this contract together with other contracts stated in the IFB to form a package will so
indicate in the bid together with any discounts offered for the award of more than one contract.
13. Bid Prices
13.1 The contract shall be for the whole works as described in Sub-Clause 1.1, based on the priced Bill Quantities
submitted by the Bidder.
13.2 The bidder shall fill in rates and prices and line item total (both in figures and words) for all items of the Works
described in the Bill of Quantities along with total bid price (both in figures and words). Items for which no
rate or price is entered by the bidder will not be paid for by the Employer when executed and shall be deemed
covered by the other rates and prices in the Bill of Quantities. Corrections, if any, shall be made by crossing
out, initialing, dating and rewriting.
13.3 All duties, taxes, and other levies payable by the contractor under the contract, or for any other cause shall be
included in the rates, prices and total Bid Price submitted by the Bidder.
Note: “Bidders may like to ascertain availability of excise/custom duty exemption benefits available in India to the contracts
financed under World Bank loan/credits. They are solely responsible for obtaining such benefits which they have
considered in their bid and in case of failure to receive such benefits for reasons whatsoever, the employer will not
compensate the bidder (contractor). Where the bidder has quoted taking into account such benefits, he must give all
information required for issue of certificates in terms of such notifications as per form attached to the Qualification
Information in the bid. To the extent the employer determines the quantity indicated therein are reasonable keeping in view
the bill of quantities, construction programme and methodology, the certificates will be issued within 60 [sixty] days of
signing of contract and no subsequent changes will be permitted. No certificate will be issued for items where no
quantity/capacity of equipment is indicated in the statement. The bids which do not conform to the above provisions will be
treated as non responsive and rejected. Any delay in procurement of the construction equipment /machinery/goods as a
result of the above shall not be a cause for granting any extension of time.”
13.4 The rates and prices quoted by the bidder shall be fixed for the duration of the Contract and shall not be
subject to adjustment on any account
14. Currencies of Bid and Payment
14.1 The unit rates and the prices shall be quoted by the bidder entirely in Indian Rupees.
15. Bid Validity 15.1 Bids shall remain valid for a period not less than ninety days after the deadline date for bid submission
specified in Clause 20. A bid valid for a shorter period shall be rejected by the Employer as non-responsive.
15.2 In exceptional circumstances, prior to expiry of the original time limit, the Employer may request that the
bidders may extend the period of validity for a specified additional period. The request and the bidders'
responses shall be made in writing or by cable. A bidder may refuse the request without forfeiting his bid
security. A bidder agreeing to the request will not be required or permitted to modify his bid except as
provided in 15.3 hereinafter, but will be required to extend the validity of his bid security for a period of the
extension, and in compliance with Clause 16 in all respects.
15.3 Not Applicable
15.4 Bid evaluation will be based on the bid prices without taking into consideration the above correction.
16. Bid Security
16.1 The Bidder shall furnish, as part of his Bid, a Bid security in the amount as shown in column 5 of the table of
IFB for this particular work. This bid security shall be in favour of The Project Director, Integrated
Coastal Zone Management Society of ODISHA, Bhubaneswar and may be in one of the following
forms:
- A bank guarantee issued by a nationalized / scheduled bank located in India or
- Certified cheque, Bank draft or Letter of Credit. or
- National Savings Certificates / Kissan Vikas Patra duly pledged.
- Term Deposite Reiepts duly pledged
16.2 Bid Security issued as surety for the bid shall be valid for 135 days ( i.e 45 days beyond the validity of the
bid ) after deadline of submission of Bid.
16.3 Any Bid not accompanied by an acceptable Bid Security and not secured as indicated in Sub-Clauses 16.1 and
16.2 above shall be rejected by the Employer as non-responsive.
16.4 The Bid Security of unsuccessful bidders will be returned within 28 days of the end of the bid validity period
specified in Sub-Clause 15.1.
16.5 The Bid Security of the successful bidder will be discharged when the bidder has signed the Agreement and
furnished the required Performance Security.
16.6 The Bid Security may be forfeited
(a) if the Bidder withdraws the Bid after Bid opening during the period of Bid validity;
(b) if the Bidder does not accept the correction of the Bid Price, pursuant to Clause 27; or
(c) in the case of a successful Bidder, if the Bidder fails within the specified time limit to
(i) sign the Agreement; or
(ii) furnish the required Performance Security.
17. Alternative Proposals by Bidders
17.1 Bidders shall submit offers that comply with the requirements of the bidding documents, including the basic
technical design as indicated in the drawing and specifications. Alternatives will not be considered.
18. Format and Signing of Bid
18.1 The Bidder shall prepare one original and one copy of the documents comprising the bid as described in Clause
12 of these Instructions to Bidders, bound with the volume containing the Form of Bid, and clearly marked
"ORIGINAL" and "COPY" as appropriate. In the event of discrepancy between them, the original shall
prevail.
18.2 The original and copy of the Bid shall be typed or written in indelible ink and shall be signed by a person or
persons duly authorized to sign on behalf of the Bidder, pursuant to Sub-Clauses 4.3. All pages of the bid
where entries or amendments have been made shall be initialed by the person or persons signing the bid.
18.3 The Bid shall contain no alterations or additions, except those to comply with instructions issued by the
Employer, or as necessary to correct errors made by the bidder, in which case such corrections shall be
initialed by the person or persons signing the bid.
18.4 The Bidder shall furnish information as described in the Form of Bid on commissions or gratuities, if any, paid
or to be paid to agents relating to this Bid, and to contract execution if the Bidder is awarded the contract.
D. Submission of Bids
19. Sealing and Marking of Bids
19.1 The Bidder shall seal the original and copy of the Bid in separate envelopes, duly marking the envelopes as
"ORIGINAL" and "COPY". These envelopes (called as inner envelopes) shall then be put inside one outer
envelope.
19.2 The inner and outer envelopes shall
(a) be addressed to the Employer at the following address:
The Project Director, ICZMP, 108- Surya Nagar, Bhubaneswar and
(b) bear the following identification:
- Bid for Peripheral Development of Bhabakundeleswar Temple of Dist under
ICZM Project
- Bid Reference No. :. ICZMP/DoC/W/06/2013-14
- DO NOT OPEN BEFORE. : 12.30 hours. on 10.01.2014
19.3 In addition to the identification required in Sub-Clause 19.2, the inner envelopes shall indicate the name and
address of the bidder to enable the bid to be returned unopened in case it is declared late, pursuant to Clause
21.
19.4 If the outer envelope is not sealed and marked as above, the Employer will assume no responsibility for the
misplacement or premature opening of the bid.
20. Deadline for Submission of the Bids
20.1 Bids must be received by the Employer at the address specified above not later than 12.00 hours. on dt.
10.01.2014. In the event of the specified date for the submission of bids declared a holiday for the Employer,
the Bids will be received upto the appointed time on the next working day.
20.2 The Employer may extend the deadline for submission of bids by issuing an amendment in accordance with
Clause 10, in which case all rights and obligations of the Employer and the bidders previously subject to the
original deadline will then be subject to the new deadline.
21. Late Bids
21.1 Any Bid received by the Employer after the deadline prescribed in Clause 20 will be returned unopened to the
bidder.
22. Modification and Withdrawal of Bids
22.1 Bidders may modify or withdraw their bids by giving notice in writing before the deadline prescribed in Clause
20.
22.2 Each Bidder's modification or withdrawal notice shall be prepared, sealed, marked, and delivered in
accordance with Clause 18 & 19, with the outer and inner envelopes additionally marked "MODIFICATION"
or "WITHDRAWAL", as appropriate.
22.3 No bid may be modified after the deadline for submission of Bids.
22.4 Withdrawal or modification of a Bid between the deadline for submission of bids and the expiration of the
original period of bid validity specified in Clause 15.1 above or as extended pursuant to Clause 15.2 may result
in the forfeiture of the Bid security pursuant to Clause 16.
22.5 Bidders may offer discounts to, or modify the prices of their Bids only by submitting Bid modifications in
accordance with this clause, or included in the original Bid submission.
E. Bid Opening and Evaluation
23. Bid Opening
23.1 The Employer will open all the Bids received (except those received late), including modifications made
pursuant to Clause 22, in the presence of the Bidders or their representatives who choose to attend at 12:30 Hrs
on dt. 10.01.2014 at the place specified in Clause 20. In the event of the specified date of Bid opening being
declared a holiday for the Employer, the Bids will be opened at the appointed time and location on the next
working day.
23.2 Envelopes marked "WITHDRAWAL" shall be opened and read out first. Bids for which an acceptable notice
of withdrawal has been submitted pursuant to Clause 22 shall not be opened. Subsequently all envelopes
marked ―Modification‖ shall be opened and the submissions therein read out in appropriate detail.
23.3 The Bidders' names, the Bid prices, the total amount of each Bid and of any alternative Bid (if alternatives have
been requested or permitted), any discounts, Bid modifications and withdrawals, the presence or absence of
Bid security, and such other details as the Employer may consider appropriate, will be announced by the
Employer at the opening. No bid shall be rejected at bid opening except for the late bids pursuant to Clause 21.
Bids [and modifications] sent pursuant to Clause 22 that are not opened and read out at bid opening will not be
considered for further evaluation regardless of the circumstances. Late and withdrawn bids will be returned
un-opened to bidders.
23.4 The Employer shall prepare minutes of the Bid opening, including the information disclosed to those present in
accordance with Sub-Clause 23.3.
24. Process to Be Confidential
24.1 Information relating to the examination, clarification, evaluation, and comparison of Bids and
recommendations for the award of a contract shall not be disclosed to Bidders or any other persons not
officially concerned with such process until the award to the successful Bidder has been announced. Any effort
by a Bidder to influence the Employer's processing of Bids or award decisions may result in the rejection of his
Bid.
25. Clarification of Bids
25.1 To assist in the examination, evaluation, and comparison of Bids, the Employer may, at his discretion, ask any
Bidder for clarification of his Bid, including breakdowns of the unit rates. The request for clarification and the
response shall be in writing or by cable, but no change in the price or substance of the Bid shall be sought,
offered, or permitted except as required to confirm the correction of arithmetic errors discovered by the
Employer in the evaluation of the Bids in accordance with Clause 27.
25.2 Subject to sub-clause 25.1, no Bidder shall contact the Employer on any matter relating to its bid from the time
of the bid opening to the time the contract is awarded. If the Bidder wishes to bring additional information to
the notice of the Employer, it should do so in writing.
25.3 Any effort by the Bidder to influence the Employer in the Employer's bid evaluation, bid comparison or
contract award decisions may result in the rejection of the Bidders‘ bid.
26. Examination of Bids and Determination of Responsiveness
26.1 Prior to the detailed evaluation of Bids, the Employer will determine whether each Bid (a) meets the eligibility
criteria defined in Clause 3; (b) has been properly signed; (c) is accompanied by the required securities and; (d)
is substantially responsive to the requirements of the Bidding documents.
26.2 A substantially responsive Bid is one which conforms to all the terms, conditions, and specifications of the
Bidding documents, without material deviation or reservation. A material deviation or reservation is one (a)
which affects in any substantial way the scope, quality, or performance of the Works; (b) which limits in any
substantial way, inconsistent with the Bidding documents, the Employer's rights or the Bidder's obligations
under the Contract; or (c) whose rectification would affect unfairly the competitive position of other Bidders
presenting substantially responsive Bids.
26.3 If a Bid is not substantially responsive, it will be rejected by the Employer, and may not subsequently be made
responsive by correction or withdrawal of the non-conforming deviation or reservation.
27. Correction of Errors
27.1 Bids determined to be substantially responsive will be checked by the Employer for any arithmetic errors.
Errors will be corrected by the Employer as follows:
(a) where there is a discrepancy between the rates in figures and in words, the rate in words will govern;
and
(b) where there is a discrepancy between the unit and the line item total resulting from multiplying the
unit rate by the quantity, the unit rate as quoted will govern.
27.2 The amount stated in the Bid will be adjusted by the Employer in accordance with the above procedure for the
correction of errors and, with the concurrence of the Bidder, shall be considered as binding upon the Bidder. If
the Bidder does not accept the corrected amount the Bid will be rejected, and the Bid security may be forfeited
in accordance with Sub-Clause 16.6 (b).
28. Deleted
29. Evaluation and Comparison of Bids
29.1 The Employer will evaluate and compare only the Bids determined to be substantially responsive in
accordance with Clause 26.
29.2 In evaluating the Bids, the Employer will determine for each Bid the evaluated Bid Price by adjusting the Bid
Price as follows:
(a) making any correction for errors pursuant to Clause 27; or
(b) making an appropriate adjustments for any other acceptable variations, deviations; and
(c) making appropriate adjustments to reflect discounts or other price modifications offered in accordance
with Sub Clause 22.5.
29.3 The Employer reserves the right to accept or reject any variation, deviation, or alternative offer. Variations,
deviations, and alternative offers and other factors which are in excess of the requirements of the Bidding
documents or otherwise result in unsolicited benefits for the Employer shall not be taken into account in Bid
evaluation.
29.4 The estimated effect of the price adjustment conditions under Clause 47 of the Conditions of Contract, during
the period of implementation of the Contract, will not be taken into account in Bid evaluation.
29.5 If the Bid of the successful Bidder is seriously unbalanced in relation to the Engineer's estimate of the cost of
work to be performed under the contract, the Employer may require the Bidder to produce detailed price
analyses for any or all items of the Bill of Quantities, to demonstrate the internal consistency of those prices
with the construction methods and schedule proposed. After evaluation of the price analyses, the Employer
may require that the amount of the performance security set forth in Clause 34 be increased at the expense of
the successful Bidder to a level sufficient to protect the Employer against financial loss in the event of default
of the successful Bidder under the Contract.
30. Deleted
F. Award of Contract
31. Award Criteria
31.1 Subject to Clause 32, the Employer will award the Contract to the Bidder whose Bid has been determined to be
substantially responsive to the Bidding documents and who has offered the lowest evaluated Bid Price,
provided that such Bidder has been determined to be (a) eligible in accordance with the provisions of Clause 3,
and (b) qualified in accordance with the provisions of Clause 4.
31.2 If, pursuant to Clause 12.2 this contract is being let along with other contracts, the lowest evaluated Bid Price
will be determined when evaluating this contract in conjunction with other contracts to be awarded
concurrently, taking into account any discounts offered by the bidders for the award of more than one contract.
32. Employer's Right to Accept any Bid and to Reject any or all Bids
32.1 Notwithstanding Clause 31, the Employer reserves the right to accept or reject any Bid, and to cancel the
Bidding process and reject all Bids, at any time prior to the award of Contract, without thereby incurring any
liability to the affected Bidder or Bidders or any obligation to inform the affected Bidder or Bidders of the
grounds for the Employer's action.
33. Notification of Award and Signing of Agreement
33.1 The Bidder whose Bid has been accepted will be notified of the award by the Employer prior to expiration of the
Bid validity period by cable, telex or facsimile confirmed by registered letter. This letter (hereinafter and in the
Conditions of Contract called the "Letter of Acceptance") will state the sum that the Employer will pay the
Contractor in consideration of the execution, completion, and maintenance of the Works by the Contractor as
prescribed by the Contract (hereinafter and in the Contract called the "Contract Price").
33.2 The notification of award will constitute the formation of the Contract, subject only to the furnishing of a
performance security in accordance with the provisions of Clause 34.
33.3 The Agreement will incorporate all agreements between the Employer and the successful Bidder. It will be signed
by the Employer and kept ready for signature of the successful bidder in the office of employer within 28 days
following the notification of award along with the Letter of Acceptance.
33.4 Upon the furnishing by the successful Bidder of the Performance Security, the Employer will promptly notify the
other Bidders that their Bids have been unsuccessful.
34. Performance Security
34.1 Within 21 days of receipt of the Letter of Acceptance, the successful Bidder shall deliver to the Employer a
Performance Security in any of the forms given below for an amount equivalent to 5% of the Contract price plus
additional security for unbalanced Bids in accordance with Clause 29.5 of ITB and Clause 52 of Conditions of
Contract:
- A bank guarantee issued by a nationalized / scheduled bank located in India or a reputable bank located
abroad in the form given in Section 8; or
- -
34.2 If the performance security is provided by the successful Bidder in the form of a Bank Guarantee, it shall be issued
either (a) at the Bidder's option, by a Nationalized/Scheduled Indian bank or (b) by a foreign bank located in India
and acceptable to the Employer or (c) by a foreign bank through a correspondent Bank in India [scheduled or
nationalized].
34.3 Failure of the successful bidder to comply with the requirements of sub-clause 34.1 shall constitute a breach of
contract, cause for annulment of the award, forfeiture of the bid security, and any such other remedy the Employer
may take under the contract, and the Employer may resort to awarding the contract to the next ranked bidder.
35 Advance Payment and Security
35.1 The Employer will provide an Advance Payment on the Contract Price as stipulated in the Conditions of Contract,
subject to maximum amount, as stated in the Contract Data.
36. Adjudicator
36.1 The Employer proposes that Sri Prafulla Kumar Mishra, Retd Chief.Engineer be appointed as Adjudicator under
the Contract, at a daily fee of Rs. 3000/-plus reimbursable expenses. If the Bidder disagrees with this proposal, the
Bidder should so state in the Bid. If in the Letter of Acceptance, the Employer has not agreed on the appointment of
the Adjudicator, the Adjudicator shall be appointed by Institution of Engineers, India , at a daily fee of Rs. 3000.00
per sitting plus reimbursable expenses, at the request of either party.
37. Fraud and Corruption
37.1 It is the Bank‘s policy to require that Borrowers (including beneficiaries of Bank loans), as well as bidders,
suppliers, and contractors and their agents (whether declared or not), personnel, subcontractors, sub-consultants, service
providers or suppliers, under Bank-financed contracts, observe the highest standard of ethics during the procurement
and execution of such contracts. 1 In pursuance of this policy, the Bank:
(a) defines, for the purposes of this provision, the terms set forth below as follows:
1 In this context, any action taken by a bidder, supplier, contractor, or any of its personnel, or its agents, or its sub-
consultants, sub-contractors, service providers, suppliers and/or their employees to influence the procurement process
or contract execution for undue advantage is improper.
(i) ―corrupt practice‖2 is the offering, giving, receiving or soliciting, directly or indirectly, of anything of
value to influence improperly the actions of another party;
(ii) ―fraudulent practice‖3 is any act or omission, including a misrepresentation, that knowingly or recklessly
misleads, or attempts to mislead, a party to obtain a financial or other benefit or to avoid an obligation;
(iii) ―collusive practice‖4 is an arrangement between two or more parties designed to achieve an improper
purpose, including to influence improperly the actions of another party;
(iv) ―coercive practice‖5 is impairing or harming, or threatening to impair or harm, directly or indirectly, any
party or the property of the party to influence improperly the actions of a party;
(v) ―obstructive practice‖ is
(aa) deliberately destroying, falsifying, altering or concealing of evidence material to the investigation
or making false statements to investigators in order to materially impede a Bank investigation
into allegations of a corrupt, fraudulent, coercive or collusive practice; and/or threatening,
harassing or intimidating any party to prevent it from disclosing its knowledge of matters relevant
to the investigation or from pursuing the investigation, or
(bb) acts intended to materially impede the exercise of the Bank‘s inspection and audit rights provided
for under par. 1.14 (e) below.
(b) will reject a proposal for award if it determines that the bidder recommended for award has, directly or through
an agent, engaged in corrupt, fraudulent, collusive, coercive or obstructive practices in competing for the contract
in question;
(c) will cancel the portion of the loan allocated to a contract if it determines at any time that representatives of the
Borrower or of a beneficiary of the loan engaged in corrupt, fraudulent, collusive, or coercive practices during the
procurement or the execution of that contract, without the Borrower having taken timely and appropriate action
satisfactory to the Bank to address such practices when they occur;
(d) will sanction a firm or individual, at any time, in accordance with prevailing Bank‘s sanctions procedures,a
including by publicly declaring such firm or individual ineligible, either indefinitely or for a stated period of
time: (i) to be awarded a Bank-financed contract; and (ii) to be a nominatedb sub-contractor, consultant,
manufacturer or supplier, or service provider of an otherwise eligible firm being awarded a Bank-financed
contract;
(e) will have the right to require that a provision be included in bidding documents and in contracts financed by a
Bank loan, requiring bidders, suppliers and contractors to permit the Bank to inspect their accounts and records
and other documents relating to the bid submission and contract performance and to have them audited by
auditors appointed by the Bank.
37.2 Furthermore, Bidders shall be aware of the provision stated in sub-clause 23.2 and 59.2 (h) of the
Conditions of Contract.
2 For the purpose of these Guidelines, ―another party‖ refers to a public official acting in relation to the procurement
process or contract execution]. In this context, ―public official‖ includes World Bank staff and employees of other
organizations taking or reviewing procurement decisions. 3 For the purpose of these Guidelines, ―party‖ refers to a public official; the terms ―benefit‖ and ―obligation‖ relate to
the procurement process or contract execution; and the ―act or omission‖ is intended to influence the procurement
process or contract execution. 4 For the purpose of these Guidelines, ―parties‖ refers to participants in the procurement process (including public
officials) attempting to establish bid prices at artificial, non competitive levels. 5 For the purpose of these Guidelines, ―party‖ refers to a participant in the procurement process or contract execution. a A firm or an individual may be declared ineligible to be awarded a Bank-financed contract upon completion of the
Bank‘s sanctions proceedings as per its sanctions procedures, including inter alia: (i) temporary suspension or early
temporary suspension in connection with an ongoing sanctions proceeding; (ii) cross-debarment as agreed with other
International Financial Institutions, including Multilateral Development Banks; and (iii) the World Bank Group
corporate administrative procurement sanctions procedures for fraud and corruption. b A nominated sub-contractor, consultant, manufacturer or supplier, or service provider (different names are used
depending on the particular bidding document) is one which has: (i) either been included by the bidder in its pre-
qualification application or bid because it brings specific and critical experience and know-how that allow the bidder to
meet the qualification requirements for the particular bid; or (ii) appointed by the Borrower.
SECTION 2: FORMS OF BID, QUALIFICATION INFORMATION AND LETTER
OF ACCEPTANCE
Table of Forms:
- CONTRACTOR’S BID
- QUALIFICATION INFORMATION
- LETTER OF ACCEPTANCE
- NOTICE TO PROCEED WITH THE WORK
- AGREEMENT FORM
Contractor's Bid
Description of the Works: Peripheral Development of Bhabakundeleswar Temple at
Manikpatnaof
Dist-Puri.
To:
GENTLEMEN,
Having examined the bidding documents including addendum, we offer to execute the Works described above in
accordance with the Conditions of Contract, Specifications, Drawings and Bill of Quantities accompanying this Bid for
the Contract Price of _________ [in figures] (__________________________________________________) [in
letters].6
The advance Payment required is: Rupees ________________.
We accept the appointment of ________________________ as the Adjudicator.
(OR)
We do not accept the appointment of ___________________ as the Adjudicator and propose instead that
_______________________ be appointed as Adjudicator whose daily fees and biographical data are attached.
This Bid and your written acceptance of it shall constitute a binding contract between us. We understand that you are
not bound to accept the lowest or any Bid you receive.
We hereby certify that we have taken steps to ensure that no person acting for us or on our behalf will engage in bribery.
We also undertake that, in competing for (and, if the award is made to us, in executing) the above contract, we will
strictly observe the laws against fraud and corruption in force in India namely ―Prevention of Corruption Act 1988‖.
Commissions or gratuities, if any, paid or to be paid by us to agents relating to this Bid, and to contract execution if we
are awarded the contract, are listed below :
Name and address of agent Amount Purpose of Commission or gratuity
15. Queries about the Contract 44. Compensation Events 43
Data 38 45. Tax 44
16. Contractor to Construct the 46. Currencies 44
Works 39 47. Price Adjustments 44
17. The Works to Be Completed by 48. Retention 44
the Intended Completion Date 39 49. Liquidated Damages 45
18. Approval by the Engineer 39 50. Bonus 45
19. Safety 39 51. Advance Payment 45
20. Discoveries 39 52. Securities 45
21. Possession of the Site 39 53. Dayworks
22. Access to the Site 39 54. Cost of Repairs 45
23. Instructions 39
24. Disputes 40
25. Procedure for Disputes 40 E. Finishing the Contract
26. Replacement of Adjudicator 40
55. Completion 46
B. Time Control 56. Taking Over 46
27. Program 40 57. Final Account 46
28. Extension of the Intended 58. Operating and Maintenance Manuals 46
Completion Date 40 59. Termination 46
29. Acceleration 41 60. Payment upon Termination 47
30. Delays Ordered by the 61. Property 47
Engineer 41 62. Release from Performance 47
31. Management Meetings 41 63. Suspension of World Bank Loan 47
32. Early Warning 41 or Credit
64. Corrupt or Fraudulent Practices 47
F. Special Conditions of Contract 49
Conditions of Contract
A. General
1. Definitions
1.1 Terms which are defined in the Contract Data are not also defined in the Conditions of Contract but keep
their defined meanings. Capital initials are used to identify defined terms.
The Adjudicator is the person appointed jointly by the Employer and the Contractor to resolve disputes
in the first instance, as provided for in Clauses 24 and 25. The name of the Adjudicator is defined in the
Contract Data.
Bill of Quantities means the priced and completed Bill of Quantities forming part of the Bid.
Compensation Events are those defined in Clause 44 hereunder.
The Completion Date is the date of completion of the Works as certified by the Engineer in accordance
with Sub Clause 55.1.
The Contract is the contract between the Employer and the Contractor to execute, complete and maintain
the Works. It consists of the documents listed in Clause 2.3 below.
The Contract Data defines the documents and other information which comprise the Contract.
The Contractor is a person or corporate body whose Bid to carry out the Works has been accepted by the
Employer.
The Contractor's Bid is the completed Bidding document submitted by the Contractor to the Employer.
The Contract Price is the price stated in the Letter of Acceptance and thereafter as adjusted in
accordance with the provisions of the Contract.
Days are calendar days; months are calendar months.
A Defect is any part of the Works not completed in accordance with the Contract.
The Defects Liability Period is the period named in the Contract Data and calculated from the
Completion Date.
The Employer is the party who will employ the Contractor to carry out the Works.
The Engineer is the person named in the Contract Data (or any other competent person appointed and
notified to the contractor to act in replacement of the Engineer) who is responsible for supervising the
execution of the works and administering the Contract.
Equipment is the Contractor's machinery and vehicles brought temporarily to the Site to construct the
Works.
The Initial Contract Price is the Contract Price listed in the Employer's Letter of Acceptance.
The Intended Completion Date is the date on which it is intended that the Contractor shall complete the
Works. The Intended Completion Date is specified in the Contract Data. The Intended Completion Date
may be revised only by the Engineer by issuing an extension of time.
Materials are all supplies, including consumables, used by the contractor for incorporation in the Works.
Plant is any integral part of the Works which is to have a mechanical, electrical, electronic or chemical or
biological function.
The Site is the area defined as such in the Contract Data.
Site Investigation Reports are those which were included in the Bidding documents and are factual
interpretative reports about the surface and sub-surface conditions at the site.
Specification means the Specification of the Works included in the Contract and any modification or
addition made or approved by the Engineer.
The Start Date is given in the Contract Data. It is the date when the Contractor shall commence
execution of the works. It does not necessarily coincide with any of the Site Possession Dates.
A Subcontractor is a person or corporate body who has a Contract with the Contractor to carry out a part
of the work in the Contract which includes work on the Site.
Temporary Works are works designed, constructed, installed, and removed by the Contractor which are
needed for construction or installation of the Works.
A Variation is an instruction given by the Engineer which varies the Works.
The Works are what the Contract requires the Contractor to construct, install, and turn over to the
Employer, as defined in the Contract Data.
2. Interpretation
2.1 In interpreting these Conditions of Contract, singular also means plural, male also means female or
neuter, and the other way around. Headings have no significance. Words have their normal meaning
under the language of the Contract unless specifically defined. The Engineer will provide instructions
clarifying queries about the Conditions of Contract.
2.2 If sectional completion is specified in the Contract Data, references in the Conditions of Contract to the
Works, the Completion Date, and the Intended Completion Date apply to any Section of the Works (other
than references to the Completion Date and Intended Completion date for the whole of the Works).
2.3 The documents forming the Contract shall be interpreted in the following order of priority:
(1) Agreement
(2) Letter of Acceptance, notice to proceed with the works
(3) Contractor‘s Bid
(4) Contract Data
(5) Conditions of Contract including Special Conditions of Contract
(6) Specifications
(7) Drawings
(8) Bill of Quantities and
(9) any other document listed in the Contract Data as forming part of the Contract.
3. Language and Law
3.1 The language of the Contract and the law governing the Contract are stated in the Contract Data.
4. Engineer's Decisions
4.1 Except where otherwise specifically stated, the Engineer will decide contractual matters between the
Employer and the Contractor in the role representing the Employer.
5. Delegation
5.1 The Engineer may delegate any of his duties and responsibilities to other people except to the Adjudicator
after notifying the Contractor and may cancel any delegation after notifying the Contractor.
6. Communications
6.1 Communications between parties which are referred to in the conditions are effective only when in
writing. A notice shall be effective only when it is delivered (in terms of Indian Contract Act).
7. Subcontracting
7.1 The Contractor may subcontract with the approval of the Engineer but may not assign the Contract
without the approval of the Employer in writing. Subcontracting does not alter the Contractor's
obligations.
8. Other Contractors
8.1 The Contractor shall cooperate and share the Site with other contractors, public authorities, utilities, and
the Employer between the dates given in the Schedule of Other Contractors. The Contractor shall as
referred to in the Contract Data, also provide facilities and services for them as described in the Schedule.
The employer may modify the schedule of other contractors and shall notify the contractor of any such
modification.
9. Personnel
9.1 The Contractor shall employ the key personnel named in the Schedule of Key Personnel as referred to in
the Contract Data to carry out the functions stated in the Schedule or other personnel approved by the
Engineer. The Engineer will approve any proposed replacement of key personnel only if their
qualifications, abilities, and relevant experience are substantially equal to or better than those of the
personnel listed in the Schedule.
9.2 If the Engineer asks the Contractor to remove a person who is a member of the Contractor‘s staff or his
work force stating the reasons the Contractor shall ensure that the person leaves the Site within seven
days and has no further connection with the work in the Contract.
10. Employer’s and Contractor's Risks
10.1 The Employer carries the risks which this Contract states are Employer‘s risks, and the Contractor carries
the risks which this Contract states are Contractor‘s risks.
11. Employer's Risks
11.1 The Employer is responsible for the excepted risks which are (a) in so far as they directly affect the
execution of the Works in the Employer‘s country, the risks of war, hostilities, invasion, act of foreign
enemies, rebellion, revolution, insurrection or military or usurped power, civil war, riot commotion or
disorder (unless restricted to the Contractor‘s employees), and contamination from any nuclear fuel or
nuclear waste or radioactive toxic explosive, or (b) a cause due solely to the design of the Works, other
than the Contractor‘s design.
12. Contractor’s Risks
12.1 All risks of loss of or damage to physical property and of personal injury and death which arise during
and in consequence of the performance of the Contract other than the excepted risks are the responsibility
of the Contractor.
13. Insurance
13.1 The Contractor shall provide, in the joint names of the Employer and the Contractor, insurance cover
from the Start Date to the end of the Defects Liability Period, in the amounts and deductibles stated in the
Contract Data for the following events which are due to the Contractor‘s risks:
(a) loss of or damage to the Works, Plant and Materials;
(b) loss of or damage to Equipment;
(c) loss of or damage of property (except the Works, Plant, Materials and Equipment) in connection
with the Contract; and
(d) personal injury or death.
13.2 Policies and certificates for insurance shall be delivered by the Contractor to the Engineer for the
Engineer‘s approval before the Start Date. All such insurance shall provide for compensation to be
payable in the types and proportions of currencies required to rectify the loss or damage incurred.
13.3 If the Contractor does not provide any of the policies and certificates required, the Employer may effect
the insurance which the Contractor should have provided and recover the premiums the Employer has
paid from payments otherwise due to the Contractor or, if no payment is due, the payment of the
premiums shall be a debt due.
13.4 Alterations to the terms of an insurance shall not be made without the approval of the Engineer.
13.5 Both parties shall comply with any conditions of the insurance policies.
14. Site Investigation Reports
14.1 The Contractor, in preparing the Bid, shall rely on any site Investigation Reports referred to in the
Contract Data, supplemented by any information available to the Bidder.
15. Queries about the Contract Data
15.1 The Engineer will clarify queries on the Contract Data.
16. Contractor to Construct the Works
16.1 The Contractor shall construct and install the Works in accordance with the Specification and Drawings,
and as per instructions of Engineer.
17. The Works to Be Completed by the Intended Completion Date
17.1 The Contractor may commence execution of the Works on the Start Date and shall carry out the Works
in accordance with the program submitted by the Contractor, as updated with the approval of the
Engineer, and complete them by the Intended Completion Date.
18. Approval by the Engineer
18.1 The Contractor shall submit Specifications and Drawings showing the proposed Temporary Works to the
Engineer, who is to approve them if they comply with the Specifications and Drawings.
18.2 The Contractor shall be responsible for design of Temporary Works.
18.3 The Engineer's approval shall not alter the Contractor's responsibility for design of the Temporary Works.
18.4 The Contractor shall obtain approval of third parties to the design of the Temporary Works where
required.
18.5 All Drawings prepared by the Contractor for the execution of the temporary or permanent Works, are
subject to prior approval by the Engineer before their use.
19. Safety
19.1 The Contractor shall be responsible for the safety of all activities on the Site.
20. Discoveries
20.1 Anything of historical or other interest or of significant value unexpectedly discovered on the Site is the
property of the Employer. The Contractor is to notify the Engineer of such discoveries and carry out the
Engineer's instructions for dealing with them.
21. Possession of the Site
21.1 The Employer shall give possession of all parts of the Site to the Contractor. If possession of a part is not
given by the date stated in the Contract Data the Employer is deemed to have delayed the start of the
relevant activities and this will be Compensation Event.
22. Access to the Site
22.1 The Contractor shall allow the Engineer and any person authorized by the Engineer access to the Site, to
any place where work in connection with the Contract is being carried out or is intended to be carried out
and to any place where materials or plant are being manufactured / fabricated / assembled for the works.
23. Instructions
23.1 The Contractor shall carry out all instructions of the Engineer which comply with the applicable laws
where the Site is located.
23.2 Inspections and Audits by the Bank
The Contractor shall permit the Bank and/or persons appointed by the Bank to inspect the
Site and/or the accounts and records of the Contractor and its subcontractors relating to the
performance of the Contract, and to have such accounts and records audited by auditors
appointed by the Bank if required by the Bank. The Contractor‘s attention is drawn to
Clause 64 [Corrupt or Fraudulent Practices] which provides, inter alia, that acts intended to
materially impede the exercise of the Bank‘s inspection and audit rights provided for under
Sub-Clause 23.2 constitute a prohibited practice subject to contract termination (as well as to
a determination of ineligibility under the Procurement Guidelines).
24. Disputes
24.1 If the Contractor believes that a decision taken by the Engineer was either outside the authority given to
the Engineer by the Contract or that the decision was wrongly taken, the decision shall be referred to the
Adjudicator within 14 days of the notification of the Engineer's decision.
25. Procedure for Disputes
25.1 The Adjudicator shall give a decision in writing within 28 days of receipt of a notification of a dispute.
25.2 The Adjudicator shall be paid daily at the rate specified in the Contract Data together with reimbursable
expenses of the types specified in the Contract Data and the cost shall be divided equally between the
Employer and the Contractor, whatever decision is reached by the Adjudicator. Either party may refer a
decision of the Adjudicator to an Arbitrator within 28 days of the Adjudicator's written decision. If neither
party refers the dispute to arbitration within the above 28 days, the Adjudicator's decision will be final
and binding.
25.3 The arbitration shall be conducted in accordance with the arbitration procedure stated in the Special
Conditions of Contract.
26. Replacement of Adjudicator
26.1 Should the Adjudicator resign or die, or should the Employer and the Contractor agree that the
Adjudicator is not fulfilling his functions in accordance with the provisions of the Contract, a new
Adjudicator will be jointly appointed by the Employer and the Contractor. In case of disagreement
between the Employer and the Contractor, within 30 days, the Adjudicator shall be designated by the
Appointing Authority designated in the Contract Data at the request of either party, within 14 days of
receipt of such request.
B. Time Control
27. Program
27.1 Within the time stated in the Contract Data the Contractor shall submit to the Engineer for approval a
Program including Environmental Management Plan showing the general methods, arrangements, order,
and timing for all the activities in the Works along with monthly cash flow forecast.
27.2 An update of the Program shall be a program showing the actual progress achieved on each activity and
the effect of the progress achieved on the timing of the remaining work including any changes to the
sequence of the activities.
27.3 The Contractor shall submit to the Engineer, for approval, an updated Program at intervals no longer than
the period stated in the Contract Data. If the Contractor does not submit an updated Program within this
period, the Engineer may withhold the amount stated in the Contract Data from the next payment
certificate and continue to withhold this amount until the next payment after the date on which the
overdue Program has been submitted.
27.4 The Engineer's approval of the Program shall not alter the Contractor's obligations. The Contractor may
revise the Program and submit it to the Engineer again at any time. A revised Program is to show the
effect of Variations and Compensation Events.
28. Extension of the Intended Completion Date
28.1 The Engineer shall extend the Intended Completion Date if a Compensation Event occurs or a Variation is
issued which makes it impossible for Completion to be achieved by the Intended Completion Date
without the Contractor taking steps to accelerate the remaining work and which would cause the
Contractor to incur additional cost.
28.2 The Engineer shall decide whether and by how much to extend the Intended Completion Date within 21 days
of the Contractor asking the Engineer for a decision upon the effect of a Compensation Event or Variation and
submitting full supporting information. If the Contractor has failed to give early warning of a delay or has
failed to cooperate in dealing with a delay, the delay by this failure shall not be considered in assessing the
new Intended Completion Date.
29. Deleted
30. Delays Ordered by the Engineer
30.1 The Engineer may instruct the Contractor to delay the start or progress of any activity within the Works.
31. Management Meetings
31.1 Either the Engineer or the Contractor may require the other to attend a management meeting. The business of
a management meeting shall be to review the plans for remaining work and to deal with matters raised in
accordance with the early warning procedure.
31.2 The Engineer shall record the business of management meetings and is to provide copies of his record to those
attending the meeting and to the Employer. The responsibility of the parties for actions to be taken is to be
decided by the Engineer either at the management meeting or after the management meeting and stated in
writing to all who attended the meeting.
32. Early Warning
32.1 The Contractor is to warn the Engineer at the earliest opportunity of specific likely future events or
circumstances that may adversely affect the quality of the work, increase the Contract Price or delay the
execution of works. The Engineer may require the Contractor to provide an estimate of the expected effect of
the future event or circumstance on the Contract Price and Completion Date. The estimate is to be provided by
the Contractor as soon as reasonably possible.
32.2 The Contractor shall cooperate with the Engineer in making and considering proposals for how the effect of
such an event or circumstance can be avoided or reduced by anyone involved in the work and in carrying out
any resulting instruction of the Engineer.
C. Quality Control
33. Identifying Defects
33.1 The Engineer shall check the Contractor's work and notify the Contractor of any Defects that are found.
Such checking shall not affect the Contractor's responsibilities. The Engineer may instruct the Contractor
to search for a Defect and to uncover and test any work that the Engineer considers may have a Defect.
33.2 The contractor shall permit the Employer‘s Technical auditor to check the contractor‘s work and notify
the Engineer and Contractor of any defects that are found. Such a check shall not affect the Contractor‘s
or the Engineer‘s responsibility as defined in the Contract Agreement.
34. Tests
34.1 If the Engineer instructs the Contractor to carry out a test not specified in the Specification to check
whether any work has a Defect and the test shows that it does, the Contractor shall pay for the test and
any samples. If there is no Defect the test shall be a Compensation Event.
35. Correction of Defects
35.1 The Engineer shall give notice to the Contractor of any Defects before the end of the Defects Liability
Period, which begins at Completion and is defined in the Contract Data. The Defects Liability Period
shall be extended for as long as Defects remain to be corrected.
35.2 Every time notice of a Defect is given, the Contractor shall correct the notified Defect within the length of
time specified by the Engineer‘s notice.
36. Uncorrected Defects
36.1 If the Contractor has not corrected a Defect within the time specified in the Engineer‘s notice, the
Engineer will assess the cost of having the Defect corrected, and the Contractor will pay this amount.
Note: Where in certain cases, the technical specifications provide for acceptance of works within specified
tolerance limits at reduced rates, Engineer will certify payments to Contractor accordingly.
D. Cost Control
37. Bill of Quantities
37.1 The Bill of Quantities shall contain items for the construction, installation, testing, and commissioning
work to be done by the contractor.
37.2 The Bill of Quantities is used to calculate the Contract Price. The Contractor is paid for the quantity of
the work done at the rate in the Bill of Quantities for each item.
38. Changes in the Quantities
38.1 If the final quantity of the work done differs from the quantity in the Bill of Quantities for the particular
item by more than 25 percent, provided the change exceeds 1% of Initial Contract Price, the Engineer
shall adjust the rate to allow for the change.
38.2 The Engineer shall not adjust rates from changes in quantities if thereby the Initial Contract Price is
exceeded by more than 15 percent, except with the Prior approval of the Employer.
38.3 If requested by the Engineer, the Contractor shall provide the Engineer with a detailed cost breakdown of
any rate in the Bill of Quantities.
39. Variations
39.1 All Variations shall be included in updated Programs produced by the Contractor.
40. Payments for Variations
40.1 The Contractor shall provide the Engineer with a quotation (with breakdown of unit rates) for carrying out
the Variation when requested to do so by the Engineer. The Engineer shall assess the quotation, which
shall be given within seven days of the request or within any longer period stated by the Engineer and
before the Variation is ordered.
40.2 If the work in the Variation corresponds with an item description in the Bill of Quantities and if, in the
opinion of the Engineer, the quantity of work above the limit stated in Sub Clause 38.1 or the timing of its
execution do not cause the cost per unit of quantity to change, the rate in the bill of Quantities shall be
used to calculate the value of the Variation. If the cost per unit of quantity changes, or if the nature or
timing of the work in the Variation does not correspond with items in the Bill of Quantities, the quotation
by the Contractor shall be in form of new rates for the relevant items of work.
40.3 If the Contractor's quotation is unreasonable (or if the contractor fails to provide the Engineer with a
quotation within a reasonable time specified by the engineer in accordance with Clause 40.1), the
Engineer may order the Variation and make a change to the Contract Price which shall be based on
Engineer‘s own forecast of the effects of the Variation on the Contractor's costs.
40.4 If the Engineer decides that the urgency of varying the work would prevent a quotation being given and
considered without delaying the work, no quotation shall be given and the Variation shall be treated as a
Compensation Event.
40.5 The Contractor shall not be entitled to additional payment for costs that could have been avoided by
giving early warning.
41. Cash flow forecasts
41.1 When the Program is updated, the contractor is to provide the Engineer with an updated cash flow
forecast.
42. Payment Certificates
42.1 The Contractor shall submit to the Engineer monthly statements of the estimated value of the work
completed less the cumulative amount certified previously along with details of measurement of the
quantity of works executed in a tabulated form as approved by the Engineer.
42.2 The Engineer shall check the details given in the Contractor's monthly statement and within 14 days
certify the amounts to be paid to the Contractor after taking into account any credit or debit for the month
in question in respect of materials for the works in the relevant amounts and under conditions set forth in
sub-clause 51(3) of the Contract Data (Secured Advance).
42.3 The value of work executed shall be determined by the Engineer after due check measurement of the
quantities claimed as executed by the contractor.
42.4 The value of work executed shall comprise the value of the quantities of the items in the Bill of Quantities
completed..
42.5 The value of work executed shall include the valuation of Variations and Compensation Events.
42.6 The Engineer may exclude any item certified in a previous certificate or reduce the proportion of any item
previously certified in any certificate in the light of later information.
43. Payments
43.1 Payments shall be adjusted for deductions for advance payments, retention, other recoveries in terms of
the contract and taxes, at source, as applicable under the law. The Employer shall pay the Contractor the
amounts certified by the Engineer within 28 days of the date of each certificate. If the Employer makes a
late payment, the Contractor shall be paid interest on the late payment in the next payment. Interest shall
be calculated from the date by which the payment should have been made upto the date when the late
payment is made at 8% per annum.
43.2 If an amount certified is increased in a later certificate or as a result of an award by the Adjudicator or an
Arbitrator, the Contractor shall be paid interest upon the delayed payment as set out in this clause. Interest
shall be calculated from the date upon which the increased amount would have been certified in the
absence of dispute.
43.3 Items of the Works for which no rate or price has been entered in will not be paid for by the Employer
and shall be deemed covered by other rates and prices in the Contract.
44. Compensation Events
44.1 The following are Compensation Events unless they are caused by the Contractor:
(a) The Employer does not give access to a part of the Site by the Site Possession Date stated in the
Contract Data.
(b) The Employer modifies the schedule of other contractors in a way which affects the work of the
contractor under the contract.
(c) The Engineer orders a delay or does not issue drawings, specifications or instructions required for
execution of works on time.
(d) The Engineer instructs the Contractor to uncover or to carry out additional tests upon work which
is then found to have no Defects.
(e) The Engineer unreasonably does not approve for a subcontract to be let.
(f) Ground conditions are substantially more adverse than could reasonably have been assumed before
issuance of Letter of Acceptance from the information issued to Bidders (including the Site
Investigation Reports), from information available publicly and from a visual inspection of the
Site.
(g) The Engineer gives an instruction for dealing with an unforeseen condition, caused by the
Employer, or additional work required for safety or other reasons.
(h) Other contractors, public authorities, utilities or the Employer does not work within the dates and
other constraints stated in the Contract, and they cause delay or extra cost to the Contractor.
(i) The advance payment is delayed.
(j) The effect on the Contractor of any of the Employer‘s Risks.
(k) The Engineer unreasonably delays issuing a Certificate of Completion.
(l) Other Compensation Events listed in the Contract Data or mentioned in the Contract.
44.2 If a Compensation Event would cause additional cost or would prevent the work being completed before
the Intended Completion Date, the Contract Price shall be increased and/or the Intended Completion Date
is extended. The Engineer shall decide whether and by how much the Contract Price shall be increased
and whether and by how much the Intended Completion Date shall be extended.
44.3 As soon as information demonstrating the effect of each Compensation Event upon the Contractor's
forecast cost has been provided by the Contractor, it is to be assessed by the Engineer and the Contract
Price shall be adjusted accordingly. If the Contractor's forecast is deemed unreasonable, the Engineer
shall adjust the Contract Price based on Engineer‘s own forecast. The Engineer will assume that the
Contractor will react competently and promptly to the event.
44.4 The Contractor shall not be entitled to compensation to the extent that the Employer's interests are
adversely affected by the Contractor not having given early warning or not having cooperated with the
Engineer.
45. Tax
45.1 The rates quoted by the Contractor shall be deemed to be inclusive of the sales and other taxes that the
Contractor will have to pay for the performance of this Contract. The Employer will perform such duties
in regard to the deduction of such taxes at source as per applicable law.
46. Currencies
46.1 All payments shall be made in Indian Rupees.
47. Price Adjustment
47.1 Contract price shall be adjusted for increase or decrease in rates and price of labour, materials, fuels and
lubricants in accordance with the following principles and procedures and as per formula given in the
contract data:
(a) The price adjustment shall apply for the work done from the start date given in the contract upto
end of the initial intended completion date or extensions granted by the Engineer and shall not
apply to the work carried out beyond the stipulated time for reasons attributable to the contractor.
(b) The price adjustment shall be determined during each quarter from the formula given in the
contract data.
(c) Following expressions and meanings are assigned to the work done during each quarter:
R = Total value of work done during the quarter. It would include the amount of secured
advance for materials paid for (if any) during the quarter, less the amount of the secured
advance recovered, during the quarter. It will exclude value for works executed under
variations for which price adjustment will be worked separately based on the terms
mutually agreed.
47.2 To the extent that full compensation for any rise or fall in costs to the contractor is not covered by the
provisions of this or other clauses in the contract, the unit rates and prices included in the contract shall be
deemed to include amounts to cover the contingency of such other rise or fall in costs.
48. Retention
48.1 The Employer shall retain from each payment due to the Contractor the proportion stated in the Contract
Data until Completion of the whole of the Works.
48.2 On Completion of the whole of the Works half the total amount retained is repaid to the Contractor and
half when the Defects Liability Period has passed and the Engineer has certified that all Defects notified
by the Engineer to the Contractor before the end of this period have been corrected.
48.3 On completion of the whole works, the contractor may substitute retention money (balance half) with an
―on demand‖ Bank guarantee.
49. Liquidated Damages
49.1 The Contractor shall pay liquidated damages to the Employer at the rate per day stated in the Contract
Data for each day that the Completion Date is later than the Intended Completion Date (for the whole of
the works or the milestone as stated in the contract data). The total amount of liquidated damages shall
not exceed the amount defined in the Contract Data. The Employer may deduct liquidated damages from
payments due to the Contractor. ―Time is the essence of the contract and payment or deduction of
liquidated damages shall not relieve the contractor from his obligation to complete the work as per agreed
construction program and milestones or from any other of the contractor‘s obligations and liabilities under
the contract.‖
49.2 If the Intended Completion Date is extended after liquidated damages have been paid, the Engineer shall
correct any overpayment of liquidated damages by the Contractor by adjusting the next payment
certificate. The Contractor shall be paid interest on the over payment calculated from the date of payment
to the date of repayment at the rates specified in Sub Clause 43.1.
50. Deleted.
51. Advance Payment
51.1 The Employer shall make advance payment to the Contractor of the amounts stated in the Contract Data
by the date stated in the Contract Data, against provision by the Contractor of an Unconditional Bank
Guarantee in a form and by a bank acceptable to the Employer in amounts and currencies equal to the
advance payment. The guarantee shall remain effective until the advance payment has been repaid, but
the amount of the guarantee shall be progressively reduced by the amounts repaid by the Contractor.
Interest will not be charged on the advance payment.
51.2 The Contractor is to use the advance payment only to pay for Equipment, Plant and Mobilization
expenses required specifically for execution of the Works. The Contractor shall demonstrate that
advance payment has been used in this way by supplying copies of invoices or other documents to the
Engineer.
51.3 The advance payment shall be repaid by deducting proportionate amounts from payments otherwise due
to the Contractor, following the schedule of completed percentages of the Works on a payment basis. No
account shall be taken of the advance (mobilization and equipment only) payment or its repayment in
assessing valuations of work done, Variations, price adjustments, Compensation Events, or Liquidated
Damages.
51.4 Secured Advance:
The Engineer shall make advance payment in respect of materials intended for but not yet incorporated in
the Works in accordance with conditions stipulated in the Contract Data.
52. Securities
52.1 The Performance Security shall be provided to the Employer no later than the date specified in the Letter
of Acceptance and shall be issued in an amount and form and by a bank or surety acceptable to the
Employer, and denominated in Indian Rupees. The Performance Security shall be valid until a date 28
days from the date of expiry of Defects Liability Period and the additional security for unbalanced bids
shall be valid until a date 28 days from the date of issue of the certificate of completion.
53. Deleted
54. Cost of Repairs
54.1 Loss or damage to the Works or Materials to be incorporated in the Works between the Start Date and the
end of the Defects Correction periods shall be remedied by the Contractor at the Contractor's cost if the
loss or damage arises from the Contractor's acts or omissions.
E. Finishing the Contract
55. Completion
55.1 The Contractor shall request the Engineer to issue a Certificate of Completion of the Works and the
Engineer will do so upon deciding that the Work is completed.
56. Taking Over
56.1 The Employer shall take over the Site and the Works within seven days of the Engineer issuing a
certificate of Completion.
57. Final Account
57.1 The Contractor shall supply to the Engineer a detailed account of the total amount that the Contractor
considers payable under the Contract before the end of the Defects Liability Period. The Engineer shall
issue a Defect Liability Certificate and certify any final payment that is due to the Contractor within 56
days of receiving the Contractor's account if it is correct and complete. If it is not, the Engineer shall issue
within 56 days a schedule that states the scope of the corrections or additions that are necessary. If the
Final Account is still unsatisfactory after it has been resubmitted, the Engineer shall decide on the amount
payable to the Contractor and issue a payment certificate, within 56 days of receiving the Contractor‘s
revised account.
58. Operating and Maintenance Manuals
58.1 If ―as built‖ Drawings and/or operating and maintenance manuals are required, the Contractor shall
supply them by the dates stated in the Contract Data.
58.2 If the Contractor does not supply the Drawings and/or manuals by the dates stated in the Contract Data, or
they do not receive the Engineer‘s approval, the Engineer shall withhold the amount stated in the Contract
Data from payments due to the Contractor.
59. Termination
59.1 The Employer or the Contractor may terminate the Contract if the other party causes a fundamental
breach of the Contract.
59.2 Fundamental breaches of Contract include, but shall not be limited to the following:
(a) the Contractor stops work for 28 days when no stoppage of work is shown on the current program
and the stoppage has not been authorized by the Engineer;
(b) the Engineer instructs the Contractor to delay the progress of the Works and the instruction is not
withdrawn within 28 days;
(c) the Employer or the Contractor is made bankrupt or goes into liquidation other than for a
reconstruction or amalgamation;
(d) a payment certified by the Engineer is not paid by the Employer to the Contractor within 56 days
of the date of the Engineer's certificate;
(e) the Engineer gives Notice that failure to correct a particular Defect is a fundamental breach of
Contract and the Contractor fails to correct it within a reasonable period of time determined by the
Engineer;
(f) the Contractor does not maintain a security which is required;
(g) the Contractor has delayed the completion of works by the number of days for which the
maximum amount of liquidated damages can be paid as defined in the Contract data; and
(h) if the Contractor, in the judgment of the Purchaser has engaged in fraud and corruption, as defined
in GCC Clause 64, in competing for or in executing the Contract.
59.3 When either party to the Contract gives notice of a breach of contract to the Engineer for a cause other
than those listed under Sub Clause 59.2 above, the Engineer shall decide whether the breach is
fundamental or not.
59.4 Notwithstanding the above, the Employer may terminate the Contract for convenience.
59.5 If the Contract is terminated the Contractor shall stop work immediately, make the Site safe and secure
and leave the Site as soon as reasonably possible.
60. Payment upon Termination
60.1 If the Contract is terminated because of a fundamental breach of Contract by the Contractor, the Engineer
shall issue a certificate for the value of the work done less advance payments received up to the date of
the issue of the certificate, less other recoveries due in terms of the contract, less taxes due
to be deducted at source as per applicable law and less the percentage to apply to the work not completed
as indicated in the Contract Data. Additional Liquidated Damages shall not apply . If the total amount due
to the Employer exceeds any payment due to the Contractor the difference shall be a debt payable to the
Employer.
60.2 If the Contract is terminated at the Employer's convenience or because of a fundamental breach of
Contract by the Employer, the Engineer shall issue a certificate for the value of the work done, the
reasonable cost of removal of Equipment, repatriation of the Contractor's personnel employed solely on
the Works, and the Contractor's costs of protecting and securing the Works and less advance payments
received up to the date of the certificate, less other recoveries due in terms of the contract and less taxes
due to be deducted at source as per applicable law.
61. Property
61.1 All materials on the Site, Plant, Equipment, Temporary Works and Works are deemed to be the property
of the Employer, if the Contract is terminated because of a Contractor‘s default.
62. Release from Performance
62.1 If the Contract is frustrated by the outbreak of war or by any other event entirely outside the control of
either the Employer or the Contractor the Engineer shall certify that the Contract has been frustrated. The
Contractor shall make the Site safe and stop work as quickly as possible after receiving this certificate and
shall be paid for all work carried out before receiving it and for any work carried out afterwards to which
commitment was made.
63. Suspension of World Bank Loan or Credit
63.1 In the event that the World Bank suspends the Loan or Credit to the Employer, from which part of the
payments to the Contractor are being made:
(a) The Employer is obligated to notify the Contractor of such suspension within 7 days of having
received the World Bank‘s suspension notice.
(b) If the Contractor has not received sums due to it upon the expiration of the 28 days for payment
provided for in Sub-Clause 43.1, the Contractor may immediately issue a 14-day termination
notice.
64. Corrupt or Fraudulent Practices:
64.1 If the Employer determines that the Contractor has engaged in corrupt, fraudulent, collusive, coercive or
obstructive practices, in competing for or in executing the Contract, then the Employer may, after giving 14 days
notice to the Contractor, terminate the Contractor's employment under the Contract and expel him from the Site,
and the provisions of Clause 59 shall apply as if such expulsion had been made under Sub-Clause 59.2
[Termination by Employer].
64.2 Should any employee of the Contractor be determined to have engaged in corrupt, fraudulent, collusive, coercive,
or obstructive practice during the execution of the Works, then that employee shall be removed in accordance
with Clause 9.
64.3 For the purposes of this Sub-Clause:
(i) ―corrupt practice‖7 is the offering, giving, receiving or soliciting, directly or indirectly, of anything of
value to influence improperly the actions of another party;
(ii) ―fraudulent practice‖8 is any act or omission, including a misrepresentation, that knowingly or recklessly
misleads, or attempts to mislead, a party to obtain a financial or other benefit or to avoid an obligation;
7 For the purpose of these Guidelines, ―another party‖ refers to a public official acting in relation to the procurement
process or contract execution]. In this context, ―public official‖ includes World Bank staff and employees of other
organizations taking or reviewing procurement decisions.
(iii) ―collusive practice‖9 is an arrangement between two or more parties designed to achieve an improper
purpose, including to influence improperly the actions of another party;
(iv) ―coercive practice‖10 is impairing or harming, or threatening to impair or harm, directly or indirectly, any
party or the property of the party to influence improperly the actions of a party;
(v) ―obstructive practice‖ is
(aa) deliberately destroying, falsifying, altering or concealing of evidence material to the investigation
or making false statements to investigators in order to materially impede a Bank investigation
into allegations of a corrupt, fraudulent, coercive or collusive practice; and/or threatening,
harassing or intimidating any party to prevent it from disclosing its knowledge of matters relevant
to the investigation or from pursuing the investigation, or
(bb) acts intended to materially impede the exercise of the Bank‘s inspection and audit rights provided
for under clause 23.2.
F. Special Conditions of Contract
1. LABOUR :
The Contractor shall, unless otherwise provided in the Contract, make his own arrangements for the engagement
of all staff and labour, local or other, and for their payment, housing, feeding and transport.
The Contractor shall, if required by the Engineer, deliver to the Engineer a return in detail, in such form and at
such intervals as the Engineer may prescribe, showing the staff and the numbers of the several classes of labour
from time to time employed by the Contractor on the Site and such other information as the Engineer may require.
2. COMPLIANCE WITH LABOUR REGULATIONS :
During continuance of the contract, the Contractor and his sub contractors shall abide at all times by all existing
labour enactments and rules made there under, regulations, notifications and bye laws of the State or Central
Government or local authority and any other labour law (including rules), regulations, bye laws that may be
passed or notification that may be issued under any labour law in future either by the State or the Central
Government or the local authority. Salient features of some of the major labour laws that are applicable to
construction industry are given below. The Contractor shall keep the Employer indemnified in case any action is
taken against the Employer by the competent authority on account of contravention of any of the provisions of any
Act or rules made there under, regulations or notifications including amendments. If the Employer is caused to pay
or reimburse, such amounts as may be necessary to cause or observe, or for non-observance of the provisions
stipulated in the notifications/bye laws/Acts/Rules/regulations including amendments, if any, on the part of the
Contractor, the Engineer/Employer shall have the right to deduct any money due to the Contractor including his
amount of performance security. The Employer/Engineer shall also have right to recover from the Contractor any
sum required or estimated to be required for making good the loss or damage suffered by the Employer.
The employees of the Contractor and the Sub-Contractor in no case shall be treated as the employees of the
Employer at any point of time.
SALIENT FEATURES OF SOME MAJOR LABOUR LAWS APPLICABLE TO ESTABLISHMENTS
ENGAGED IN BUILDING AND OTHER CONSTRUCTION WORK
(The law as current on the date of bid opening will apply)
a) Workmen Compensation Act 1923: The Act provides for compensation in case of injury by accident arising out
of and during the course of employment.
b) Payment of Gratuity Act 1972: Gratuity is payable to an employee under the Act on satisfaction of certain
conditions on separation if an employee has completed 5 years service or more or on death the rate of 15 days 8 For the purpose of these Guidelines, ―party‖ refers to a public official; the terms ―benefit‖ and ―obligation‖ relate to
the procurement process or contract execution; and the ―act or omission‖ is intended to influence the procurement
process or contract execution. 9 For the purpose of these Guidelines, ―parties‖ refers to participants in the procurement process (including public
officials) attempting to establish bid prices at artificial, non competitive levels. 10
For the purpose of these Guidelines, ―party‖ refers to a participant in the procurement process or contract execution.
wages for every completed year of service. The Act is applicable to all establishments employing 10 or more
employees.
c) Employees P.F. and Miscellaneous Provision Act 1952 (since amended): The Act Provides for monthly
contributions by the employer plus workers @ 10% or 8.33%. The benefits payable under the Act are :
(i) Pension or family pension on retirement or death, as the case may be.
(ii) Deposit linked insurance on the death in harness of the worker.
(iii) payment of P.F. accumulation on retirement/death etc.
d) Maternity Benefit Act 1951: The Act provides for leave and some other benefits to women employees in case of
confinement or miscarriage etc.
e) Contract Labour (Regulation & Abolition) Act 1970: The Act provides for certain welfare measures to be
provided by the Contractor to contract labour and in case the Contractor fails to provide, the same are required to
be provided, by the Principal Employer by Law. The Principal Employer is required to take Certificate of
Registration and the Contractor is required to take license from the designated Officer. The Act is applicable to
the establishments or Contractor of Principal Employer if they employ 20 or more contract labour.
f) Minimum Wages Act 1948: The Employer is supposed to pay not less than the Minimum Wages fixed by
appropriate Government as per provisions of the Act if the employment is a scheduled employment.
Construction of Buildings, Roads, Runways are scheduled employments.
g) Payment of Wages Act 1936: It lays down as to by what date the wages are to be paid, when it will be paid and
what deductions can be made from the wages of the workers.
h) Equal Remuneration Act 1979: The Act provides for payment of equal wages for work of equal nature to Male
and Female workers and for not making discrimination against Female employees in the matters of transfers,
training and promotions etc.
i) Payment of Bonus Act 1965: The Act is applicable to all establishments employing 20 or more employees. The
Act provides for payments of annual bonus subject to a minimum of 8.33% of wages and maximum of 20% of
wages to employees drawing Rs.3500/-per month or less. The bonus to be paid to employees getting Rs.2500/-
per month or above upto Rs.3500/- per month shall be worked out by taking wages as Rs.2500/-per month only.
The Act does not apply to certain establishments. The newly set-up establishments are exempted for five years in
certain circumstances. Some of the State Governments have reduced the employment size from 20 to 10 for the
purpose of applicability of this Act.
j) Industrial Disputes Act 1947: The Act lays down the machinery and procedure for resolution of Industrial
disputes, in what situations a strike or lock-out becomes illegal and what are the requirements for laying off or
retrenching the employees or closing down the establishment.
k) Industrial Employment (Standing Orders) Act 1946: It is applicable to all establishments employing 100 or more
workmen (employment size reduced by some of the States and Central Government to 50). The Act provides for
laying down rules governing the conditions of employment by the Employer on matters provided in the Act and
get the same certified by the designated Authority.
l) Trade Unions Act 1926: The Act lays down the procedure for registration of trade unions of workmen and
employers. The Trade Unions registered under the Act have been given certain immunities from civil and
criminal liabilities.
m) Child Labour (Prohibition & Regulation) Act 1986: The Act prohibits employment of children below 14 years of
age in certain occupations and processes and provides for regulation of employment of children in all other
occupations and processes. Employment of Child Labour is prohibited in Building and Construction Industry.
n) Inter-State Migrant workmen‘s (Regulation of Employment & Conditions of Service) Act 1979: The Act is
applicable to an establishment which employs 5 or more inter-state migrant workmen through an intermediary
(who has recruited workmen in one state for employment in the establishment situated in another state). The
Inter-State migrant workmen, in an establishment to which this Act becomes applicable, are required to be
provided certain facilities such as housing, medical aid, travelling expenses from home upto the establishment
and back, etc.
o) The Building and Other Construction workers (Regulation of Employment and Conditions of Service) Act 1996
and the Cess Act of 1996: All the establishments who carry on any building or other construction work and
employs 10 or more workers are covered under this Act. All such establishments are required to pay cess at the
rate not exceeding 2% of the cost of construction as may be modified by the Government. The Employer of the
establishment is required to provide safety measures at the Building or construction work and other welfare
measures, such as Canteens, First-Aid facilities, Ambulance, Housing accommodations for workers near the
work place etc. The Employer to whom the Act applies has to obtain a registration certificate from the
Registering Officer appointed by the Government.
p) Factories Act 1948: The Act lays down the procedure for approval at plans before setting up a factory, health
and safety provisions, welfare provisions, working hours, annual earned leave and rendering information
regarding accidents or dangerous occurrences to designated authorities. It is applicable to premises employing 10
persons or more with aid of power or 20 or more persons without the aid of power engaged in manufacturing
process.
3. SUB-CONTRACTING (GCC Clause 7)
Please add the following as Clause 7.2:
The contractor shall not be required to obtain any consent from the employer for:
a) the sub-contracting of any part of the Works for which the Sub-contractor is named in the contract;
b) the provision of labour; and
c) the purchase of materials which are in accordance with the standards specified in the Contract.
Beyond this if the contractor proposes sub-contracting any part of the work during execution of works, because
of some unforeseen circumstances to enable him to complete the work as per terms of the contract, the Engineer
will consider the following before according approval:
- The contractor shall not sub-contract the whole of the Works.
- The contractor shall not sub-contract any part of the Work without prior consent of the Engineer. Any
such consent shall not relieve the contractor from any liability or obligations under the contract and he
shall be responsible for the acts, defaults and neglects of any sub-contractor, his agents or workmen as
fully as if they were the acts, defaults or neglects of the contractor, his agents or workmen.
- The Engineer should satisfy whether (a) the circumstances warrant such sub-contracting; and (b) the sub-
contractors so proposed for the Work possess the experience, qualifications and equipment necessary for
the job proposed to be entrusted to them in proportion to the quantum of work to be sub-contracted.
- If payments are proposed to be made directly to that sub-contractor, this should be subject to specific
authorization by the prime contractor so that this arrangement does not alter the contractor's liability or
obligations under the contract.
4. ARBITRATION (GCC Clause 25.3)
The procedure for arbitration will be as follows :
25.3 (a) In case of Dispute or difference arising between the Employer and a domestic contractor relating to any
matter arising out of or connected with this agreement, such disputes or difference shall be settled in
accordance with the Arbitration and Conciliation Act, 1996. The arbitral tribunal shall consist of 3
arbitrators one each to be appointed by the Employer and the Contractor. The third Arbitrator shall be
chosen by the two Arbitrators so appointed by the Parties and shall act as Presiding arbitrator. In case of
failure of the two arbitrators appointed by the parties to reach upon a consensus within a period of 30
days from the appointment of the arbitrator appointed subsequently, the Presiding Arbitrator shall be
appointed by the President of the Institution of Engineers
(Note: 1. All bidders are expected to indicate clearly in the bid, if they proposed sub-contracting elements of the works amounting to more than 20 percent of
the Bid Price. For each such proposal the qualification and the experience of the identified sub-contractor in the relevant field should be furnished alongwith
the bid to enable the employer to satisfy himself about their qualifications before agreeing for such sub-contracting and include it in the contract. In view of
the above, normally no additional sub-contracting should arise during execution of the contract. 2. However, [a] sub contracting for certain specialized elements of the work is not unusual and acceptable for carrying out the works more
effectively; but vertical splitting of the works for subcontracting is not acceptable. [b] In any case, proposal for sub-contracting in addition to
what was specified in bid and stated in contract agreement will not be acceptable if the value of such additional sub-contracting
exceeds 25% of value of work which was to be executed by Contractor without sub-contracting.
3. Assignment of the contract may be acceptable only under exceptional circumstances such as insolvencies/liquidation or
merger of companies etc.
(b) In the case of dispute with a Foreign contractor the dispute shall be settled in accordance with provisions
of UNCITRAL Arbitration Rules. The Arbitral Tribunal shall consist of three Arbitrators one each to be appointed by
the Employer and the Contractor. The third Arbitrator shall be chosen by the two Arbitrators so appointed by the
Parties, and shall act a presiding arbitrator. In case of failure
of the two arbitrators appointed by the parties to reach upon a consensus within a period of 30 days from
the appointment of the arbitrator appointed subsequently, the Presiding arbitrator shall be appointed by
the President of the Institution of Engineers (India)
(c) If one of the parties fails to appoint its arbitrator in pursuance of sub-clause (a) and (b) above within 30
days after receipt of the notice of the appointment of its arbitrator by the other party, then the President of
the Institution of Engineers (India) both in cases of the Foreign Contractor as well as Indian Contractor,
shall appoint the arbitrator. A certified copy of the order of the President of the Institution of Engineers
(India), making such an appointment shall be furnished to each of the parties.
(d) Arbitration proceedings shall be held at Bhubaneswar, India, and the language of the arbitration
proceedings and that of all documents and communications between the parties shall be English.
(e) The decision of the majority of arbitrators shall be final and binding upon both parties. The cost and
expenses of Arbitration proceedings will be paid as determined by the arbitral tribunal. However, the
expenses incurred by each party in connection with the preparation, presentation, etc. of its proceedings
as also the fees and expenses paid to the arbitrator appointed by such party or on its behalf shall be borne
by each party itself.
(f) Where the value of the contract is Rs.50 millions and below, the disputes or differences arising shall be
referred to the Sole Arbitrator. The Sole Arbitrator should be appointed by agreement between the
parties; failing such agreement, by the appointing authority, namely the President of the Institution of
Engineers (India)/.
(g) Performance under the contract shall continue during the arbitration proceedings and payments due to the
contractor by the owners shall not be withheld, unless they are the subject matter of the arbitration
proceedings.
5. PROTECTION OF ENVIRONMENT:
Add the following as GCC Clause 16.2:
The contractor shall take all reasonable steps to protect the environment on and off the Site and to avoid damage
or nuisance to persons or to property of the public or others resulting from pollution, noise or other causes arising
as a consequence of his methods of operation.
During continuance of the contract, the contractor and his sub-contractors shall abide at all times by all existing
enactments on environmental protection and rules made thereunder, regulations, notifications and bye-laws of the
State or Central Government, or local authorities and any other law, bye-law, regulations that may be passed or
notification that may be issued in this respect in future by the State or Central Government or the local authority.
Salient features of some of the major laws that are applicable are given below :
The Water (Prevention and Control of Pollution) Act, 1974, This provides for the prevention and control of water
pollution and the maintaining and restoring of wholesomeness of water. 'Pollution' means such contamination of
water or such alteration of the physical, chemical or biological properties of water or such discharge of any
sewage or trade effluent or of any other liquid, gaseous or solid substance into water (whether directly or
indirectly) as may, or is likely to, create a nuisance or render such water harmful or injurious to public health or
safety, or to domestic, commercial, industrial, agricultural or other legitimate uses, or to the life and health of
animals or plants or of aquatic organisms.
The Air (Prevention and Control of Pollution) Act, 1981, This provides for prevention, control and abatement of
air pollution. 'Air Pollution' means the presence in the atmosphere of any 'air pollutant', which means any solid,
liquid or gaseous substance (including noise) present in the atmosphere in such concentration as may be or tend
to be injurious to human beings or other living creatures or plants or property or environment.
The Environment (Protection) Act, 1986, This provides for the protection and improvement of environment and
for matters connected therewith, and the prevention of hazards to human beings, other living creatures, plants and
property. 'Environment' includes water, air and land and the inter-relationship which exists among and between
water, air and land, and human beings, other living creatures, plants, micro-organism and property.
The Public Liability Insurance Act, 1991, This provides for public liability insurance for the purpose of providing
immediate relief to the persons affected by accident occurring while handling hazardous substances and for
matters connected herewith or incidental thereto. Hazardous substance means any substance or preparation which
is defined as hazardous substance under the Environment (Protection) Act 1986, and exceeding such quantity as
may be specified by notification by the Central Government.
5.2 Environment Management Plan
The Environment Management Plan (EMP) is a set of measures for avoidance, minimization and mitigation of adverse
environmental impacts. The Contractor will abide by the environmental, occupational health and safety measures listed
in the Environment Management Plan (EMP) given in the table below during preparation and execution of Works.
Adverse impact/s on the environment caused due to non-adherence of legal and EMP requirements during preparation
and execution of civil works shall be made good at the Contractor‘s own expenses. The Engineer‘s check and
certification for payment, in accordance to requirements under Clause 42.2 of GCC, shall also include the performance
review of the Contractor with regard to EMP compliance.
The complete document on Environmental and Social Management Framework (ESMF) from which these conditions
have been derived/listed is available with the Engineer and State Disaster Management Authority (SDMA) for the
Contractor‘s reference. It is also available on the websites of National Disaster Management Authority (NDMA) and
State Disaster Management Authority (SDMA).
S.
No. Activity Measures to be Implemented by the Contractor
1. Work Plan for
EMP implementation
The Contractor‘s Project Manager shall be responsible for implementation of EMP provisions and
will coordinate the over-all implementation of the said plan. Along with the Work Programme, the
Contractor shall submit a plan including method statement and timeline about specific actions that will be taken by him to implement the provisions laid out in the EMP.
2. Regulatory
Permissions and Consents
The Contractor shall obtain all requisite statutory clearances prior to commencement of civil works,
which includes obtaining permission/consent for plants, water extraction and borrow areas operations. This includes:
Consent for establishment and operation of plant (for concrete work) from SPCB
PUC certification for all vehicles/equipment used for/during construction
Permission/consent of the District Administration/Mining Department/other agencies for
quarrying and/or borrowing operations for materials like sand and earth
Permission for water extraction, if applicable in the local area context.
The Contractor shall abide by all conditions laid out in the said clearances.
3. Consultation and
Community Consent
The Contractor shall consult and obtain written consents of landowners (individual/panchayat/govt.
agency) for temporary use of land for all construction related activities including:
(a) setting-up and operation of construction camp including labour camps, stock yards etc.
(b) borrow areas and
(c) disposal of debris and other waste material.
4. Construction/ Labour Camp
(a) Location: The camp and plant site/s location and establishment shall be done in a manner that
does not interfere or disturb the activities of local inhabitants, particularly those of schools and
health facilities. Written permission (no objection certificate) shall be taken from the Gram
Sabha and the land owner prior to location selection and a copy shall be submitted to the Engineer for approval.
(b) Camp site shall not be located within 250 mts. from a water body including village ponds.
(c) A distance of at least 500 mts. shall be maintained from designated/protected natural habitats
(such as National Parks, Sanctuaries, Biosphere Reserves, Reserve Forests and Ramsar Sites) and Coastal Regulation Zone.
(b) Accommodation and Basic Amenities: All weather shelter with the required tenement size and
toilets shall be provided, as per provisions of Labour Laws. Separate toilet facilities shall be
provided for women workers. If a common mess is not provided/operated, additional space for
cooking shall be provided. The contractor shall ensure that hygienic conditions are maintained during the operation of such camps/facilities.
(c) Fuel for Cooking: The Contractor shall ensure that fuel wood is not used as a cooking medium
in the construction/labour camp.
(d) Potable water supply: Drinking water supply of at least 40 lpcd with the required supply points
shall be provided.
S.
No. Activity Measures to be Implemented by the Contractor
(e) Fire Safety: Adequate fire safety precautions shall be taken and required fire safety equipment
(such as fire extinguishers) shall be provided by the Contractor.
5. Site Clearance (a). No tree cutting is to carried out without the written instruction from the Employer, who in turn
will ensure that relevant regulatory permission/s (including those from Forest Dept., if required) are obtained prior to cutting of such trees.
(b) The non-timber grade trees are to be stacked and possession is to be given to Employer/concerned Govt. Department.
(c) The Contractor shall strip, store and preserve top soil from the site of construction work and in
the stock yards prior to stacking of materials. The top soil shall be reinstated in the Tourist Guide Centre compound after the construction is over.
6. Protection of
Properties and
Resources
The Contractor shall take due care to protect and prevent damages to the following resources during
preparatory and construction work:
a. Water supply lines
b. Irrigation canals
c. Cart, cattle and/or foot trail/tracks
d. Cultural properties and sites/structures of religious importance
e. Houses, Farmlands, Orchards and/or Trees
f. School and other existing buildings adjacent to the site of construction
In case of damage due to construction activity, the restoration/repairs shall be carried out by the
Contractor at his own cost.
7. Quarry
Operations
The Contractor shall procure material from quarries that have been approved/licensed by the State
Govt. A copy of such an approval shall be submitted to the Engineer prior to procuring material.
8. Borrow Areas (a) Borrow areas for the project will be selected by the Contractor following the stipulations given
below. The finalization of all such locations shall be dependent on the approval of the Engineer
on technical and environmental grounds. This includes on-site verification to cross-check the
accuracy of details provided by the Contractor. Only after receipt of the written approval from the Engineer, the Contractor shall enter into a formal agreement with landowner.
(b) The Contractor shall not procure any kind of construction material (such as aggregates, sand and
earth) from ecologically protected areas.
(c) Identification and Selection
1. The borrow area should not be located in agriculture field/s unless unavoidable i.e. barren
land is not available. In case borrowing needs to be done on an agricultural land, top-soil
stripping, stacking and preservation is a must.
2. Borrow pits shall not be located within a distance of 100 mts. from any NH, SH or other
roads.
3. Borrow pits shall be preferably located 500 mts. away from settlements/ habitations.
4. No borrow pits shall be located within 500 mts. from schools, colleges, playgrounds,
religious structures and health centres.
5. No borrow area shall be opened within 500 mts. from a reserved or protected forest area,
protected sites, wildlife movement zone and cultural heritage site.
6. No tree cutting shall be undertaken.
7. Borrow area near any surface water body will be at least 100 mts. away.
(d) Operation
1. Area up to which material will be extracted shall be clearly demarcated on ground.
2. A 15 cm topsoil layer will be stripped and preserved in stockpiles.
3. Borrowing of earth should be preferably limited to a depth of 1.5 mtr from the existing
ground level.
4. Slope at the edges will be maintained not steeper than 1:3 (Vertical: Horizontal).
(e) Rehabilitation of Borrow Areas
1. Rehabilitation shall be satisfactorily undertaken immediately after the use has ceased and at
least three weeks prior to monsoon.
2. Preserved top soil has be spread uniformly over land (except in cases where borrow area is
developed as a water body) used as a borrow area.
9. Water Extraction/ Use
Water for construction and for use at construction camps (including labour camps) is to be extracted
with prior written permission of (a) the individual owner, in case the source is private well/tube
well; (b) Gram Panchayat in case the source belongs to community; and (c) Irrigation Department
in case the source is an irrigation canal or a river.
S.
No. Activity Measures to be Implemented by the Contractor
be made by the Contractor to ensure safety of road users and local people, particularly in the internal village roads which will be used for transporting materials.
(b) Material shall be covered during transportation to prevent spillage, accidents and pollution.
(c) All required measures to ensure safety of local residents including children and other near-by
residents shall be taken up by the Contractor. This shall include provisions to prevent
unauthorised entry into the construction site and camp; fire and electrical safety measures; pre-
cautions around excavation such as barricading and warning signs and safe storage of material.
11. Worker‘s Safety (a) All measures required for ensuring safety and health of the workers shall be taken up by the
Contractor. This includes provision and enforcement of appropriate personal protective
equipment; first aid facility; emergency response arrangement; proper storage of hazardous/
toxic and polluting materials and; measures for ensuring fire, electrical and mechanical safety
arrangements in camp and in work site.
(b) All methods, steps and measures required for ensuring safety of workers, particularly those
needed while undertaking work in or around excavations; working at height; and; while handling inflammable, toxic and/or hazardous materials shall be ensured by the contractor.
(c) Material safety data sheet record of fuel and other inflammable chemicals shall be maintained at
the site.
12. Air Pollution (a) Wind barriers or screens shall be provided in the downwind direction at air pollution causing
sources like plant sites and fine material storage stock yards.
(b) Fugitive dust emissions have to be eliminated by providing dust suppression/control measures,
such as water sprinkling and cover on materials, based on activity and site conditions.
(c) All plants and equipment shall comply with pollution control norms.
(d) Water shall be sprinkled at least twice during dry day on haulage roads passing through or near
settlements (including at least 100 m before the settlement).
13. Water pollution (a) All measures (including provision of temporary silt fencing to control sediment run-off) required
for avoiding adverse impacts to water bodies (such as ponds, streams, canals and rivers), water
sources (such as hand pumps and wells) and adjacent farmland shall be undertaken by the
Contractor.
(b) Storage of materials like fuel, chemicals and cement shall be done in a manner (with impervious
layer on bottom and a covered shed on top) that does not contaminate land and ground/surface water.
14. Noise Pollution (a) All noise causing activities shall be stopped during night time (9:00 PM to 6:00 AM). The
Contractor shall schedule construction works in consultation with local Panchayat Authority and School Principal to ensure least disturbance to school children and other adjacent residents.
(b) Ear plugs shall be provided to the labour facing risk from high noise pollution such as plant site
and those working near generators, heavy equipment/machinery.
(c) Appropriate noise controlling devices including acoustic generators shall be used to minimise
noise during construction work and operation of camp.
15. Disposal of
Debris/Wastes
(a) Debris and other construction waste, if any, shall be disposed in locations pre-approved by the Engineer in a manner that it does not contaminate the environment.
(b) Location of Debris Disposal Sites: Debris disposal sites shall be located preferably away from
farmlands, water sources and water bodies. In no case, debris shall be disposed within 500 mts. of ecologically sensitive areas, including forests, wetlands and protected natural habitats.
16. Restoration and
Rehabilitation of
Sites
All work sites and areas under temporary use (including construction and labour camps, plant sites,
haul roads and borrow areas) shall be restored/ rehabilitated to a better condition (if not at least to its
original condition) and to the satisfaction of the Engineer and land owner upon completion of
construction work by the Contractor.
Completion of work (as covered under clause 55.1 of GCC) will also include completion of
rehabilitation and clean-up of the work sites including camps, plants, in and around the construction
site; disposal of debris/construction wastes at pre-approved locations and; restoration of borrow areas
and other sites/locations used for material sourcing.
17. Liabilities Any liability arising out of Contractor‘s agreement with landowners/ local people/gram panchayat
(including those related to temporary use of land, water extraction and disposal of debris) shall be settled by the Contractor.
SECTION 4: CONTRACT DATA
Contract Data
Items marked "N/A" do not apply in this Contract.
The following documents are also part of the Contract: Clause Reference
· The Schedule of Operating and Maintenance Manuals [58]
· The Schedule of Key Personnel [9]
· The Methodology and Program of Construction & Environmental Management Plan [27]
· The Schedule of Key and Critical equipment to be deployed [27]
on the work as per agreed program of construction
The Borrower is Government of India and Government of ODISHA is a participating state in the Integrated Coastal Zone
Management project
The World Bank means International Development Association [1.1]
and loan refers to an IDA Credit
The Employer is
Name: The Sr. Divisional Manager (BP- II) cum Nodal Officer , DEPTT OF CULTURE, Odisha (1.1) Address: Lewis Road, Bhubaneswar – 751014, Odisha
Name of authorized Representative: Director, Culture-cum-Nodal Officer, ICZM Project, Odisha State Archaeology,
1st Floor, Sanskruti Bhawan, Bhubaneswar-14 Project Executing Agency, The Engineer is xxxxxx (1.1)
Name:
The Adjudicator appointed jointly by the Employer and Contractor is:
*Name : (1.1)
Address :
The name and identification number of the Contract is: ICZMP/DoC/W/06/13-14
The Works consist of : Peripheral Development of Bhabakundeleswar Temple at Manikpatna of
Dist Puri. The work is to be executed in the financial year 2013-14 and to be continued in the financial year part of 2014-15 (1.1) [brief summary, including relationship to other contracts under Project
The Start Date shall be the date of issue of notice to proceed with the work. (1.1)
The Intended Completion Date including rainy season for the whole
of the Works is 9 (Nine) months with the following milestones: [17, 28]
Milestone dates:
Physical works to be completed Period from the date of issue of
notice to proceed with the work
Milestone 1 i.e. Site development, Boundary wall & Ground Floor roof slab Level 0 3 months.
Milestone 2 i.e. Peripheral Development and all masonry works 0 6 months.
Milestone 3 i.e. PH works , Electrical Works and Completion of Work 09 months
The following documents also form part of the Contract: [2.3]
_____________________NIL________________
The Contractor shall submit a revised Program including Environmental
Management Plan for the Works (in such form and detail as the
engineer shall reasonably prescribe) within 14 days of
delivery of the Letter of Acceptance. [27]
The Site Possession Dates shall be: Seven days
from the date of signing the Agreement [21]
The Site is located at as above and is defined in drawings nos
Section 1 / Site A : Manikpatna of Puri District
The Defects Liability Period is 365 days from the date of certification of completion of works. [35]
Insurance requirements are as under: [13]
Minimum Cover
for Insurance
Maximum deductible
for Insurance
(i) Works and Plant and
Materials
Contract value 5% of the Contract
Value
(ii) Loss or damage to
Equipment
Total book value of
the equipment
brought to the site
by the contractor
5% of the figure
alongside
(iii) Other Property
Rs.10,00,000/- Rs.10,000/-
(iv) Personal injury or death
insurance:
a) for other people;
As per Workmen‘s
Compensation Act
1923 and other
Acts in force.
As per Workmen‘s
Compensation Act
1923 and other Acts in
force.
b) for Contractor‘s
Employees
In accordance with the statutory
requirements applicable to India
The following events shall also be Compensation Events: NIL [44]
The period between Program updates shall be 30 days. [27]
The amount to be withheld for late submission of an updated
Program shall be Rs. 3000.00 per day [27]
The language of the Contract documents is English [3]
The law which applies to the Contract is the laws of Union of India [3]
The currency of the Contract is Indian Rupees. [46]
Fees and types of reimbursable expenses to be paid to the Adjudicator [25]
Rs. 3000.00 per sitting plus reimbursable expenses, (i.e.) Traveling, boarding & lodging expenses.
In case appointed by the President, Institute of Engineers, India at a daily fee per sitting as suggested
by the Institute of Engineers, India.
Appointing Authority for the Adjudicator: The President, Institution of Engineers (India) [26]
The formula(e) for adjustment of prices are: [Deleted] [47]
The proportion of payments retained (retention money) shall be 6% from each bill
subject to a maximum of 5% of final contract price [48]
The liquidated damages for the whole of the works are
per day and that for the milestone are as under : [49]
For milestone 1 Rs. 2000.00 per day
For milestone 2 Rs. 4000.00 per day
For milestone 3 Rs. 8000.00 per day
The maximum amount of liquidated damages for the whole of the works [49]
is ten percent of final contract price.
The amounts of the advance payment are: [51]
Nature of Advance Amount (Rs.) Conditions to be fulfilled
1. Mobilization 5% of the Contract price On submission of un-conditional Bank Guarantee.
(to be drawn before end of 20% of Contract period)
2. Equipment
(This advance is not
applicable for
equipment already
owned or hired/
leased by the
contractor.)
90% for new and 50% of depreciated
value for old equipment. Total
amount will be subject to a maxi-
mum of 5% of the Contract price.
After equipment is brought to site as per agreed
construction program (provided the Engineer is
satisfied that the equipment is required for
performance of the contract) and on submission of
unconditional Bank Guarantee for amount of advance.
3. Secured advance
for non-
perishable
materials brought
to site
75% of Invoice value or Market
value - lower of the two.
a) The materials are in-accordance with the
specification for Works;
b) Such materials have been delivered to site, and are
properly stored and protected against damage or
deterioration to the satisfaction of the Engineer.
The contractor shall store the bulk material in
measurable stacks.;
c) The Contractor‘s records of the requirements,
orders, receipt and use of materials are kept in a
form approved by the Engineer and such records
shall be available for inspection by the Engineer;
d) The contractor has submitted with his monthly
statement the estimated value of the materials on
site together with such documents as may be
required by the Engineer for the purpose of
valuation of the materials and providing evidence
of ownership and payment thereof;
e) Ownership of such materials shall be deemed to
vest in the Employer for which the Contractor
has submitted an Indemnity Bond in an
acceptable format; and
f) The quantity of materials are not excessive
and shall be used within a reasonable time as
determined by the Engineer.
(The advance payment will be paid to the Contractor no later than 15 days after fulfillment of the above conditions).
Repayment of advance payment for mobilization and equipment: [51]
The advance shall be repaid with percentage deductions from the interim payments certified by
the Engineer under the Contract. Deductions shall commence in the next Interim Payment
Certificate following that in which the total of all such payments to the Contractor has reached
not less than 15 percent of the Contract Price or 3 months from the date of payment of first
installment of advance, whichever period concludes earlier, and shall be made at the rate of_15
percent of the amounts of all Interim Payment Certificates until such time as the advance has
been repaid, always provided that the advance shall be completely repaid prior to the expiry of
the original time for completion.
Repayment of secured advance:
The advance shall be repaid from each succeeding monthly payments to the extent materials
[for which advance was previously paid pursuant to Clause 51.4 of G.C.C. and 51(3) of
Contract Data on prepage] have been incorporated into the Works.
The Securities shall be for the following minimum amounts equivalent as a percentage of [52]
the Contract Price:
Performance Security for 5 per cent of contract price plus Rs. ..................... as additional
security for unbalanced bids [in terms of ITB Clause 29.5].
The standard form of Performance Security acceptable to the Employer shall be an unconditional
Bank Guarantee of the type as presented in Section 8 of the Bidding Documents.
*The date by which operating and maintenance manuals are required is within 28 days of issue [58]
of certificate of completion of whole or section of the work, as the case may be.
*The date by which ―as-built‖ drawings (in scale 1:100) in 2 sets are required is within
28 days of issue of certificate of completion of whole or section of the work, as the case may be. [58]
The amount to be withheld for failing to supply ―as built‖ drawings and/or operating and [58]
maintenance manuals *by the date required is Rs.3,00,000.00
The following events shall also be fundamental breach of contract: [59.2]
1. The Contractor has contravened Sub-clause 7 of GCC read with SCC and Clause 9.0 of
GCC
2. The contractor does not adhere to the agreed construction program and agreed
environmental management plan (Clause 27 of GCC) and also fails to take satisfactory
remedial action as per agreements reached in the management meetings (Clause 31) for a
period of 60 days.
3. The contractor fails to carry out of the instructions of Engineer within a reasonable time
determined by the Engineer in accordance with GCC Clause 16.1 and 23.1.
The percentage to apply to the value of the work not completed representing the Employer's [60]
additional cost for completing the Works shall be 20 percent.
SECTION 5
TECHNICAL SPECIFICATIONS
Contents
1. Civil Works
2. Sanitary & Plumbing Works
3.Electrical Installation Work
1. TECHNICAL SPECIFICATION FOR CIVIL WORKS
1.1 General :
1.1.1 Scope of work :
The work contemplated under this contract includes general Builder‟s work for the aforesaid
project, all as detailed in the Bill of Quantities, Specifications and drawings and to complete the
said work in every respect in accordance with this contract and with the directions and to the
satisfaction of the Engineer-in-charge.
Such other works which are not included in the aforesaid Bill of quantities are generally
intended to be executed through a separate agency. Notwithstanding the above, the Engineer-
in-Charge reserves the right to order additional works under the same Contract. The Engineer-
in-charge also reserves the right to omit any item of work included in the aforesaid Bill of
quantities and award the same to any other contractor or not perform it at all at his discretion
and the Contractor shall not have any claim because of the same.
The Contractor for this work shall be required to work in co-operation and co-ordination with
other agencies on site and give them all reasonable assistance and help for the execution of the
work in an efficient manner all as directed. The words “approved” or “as directed” shall be
deemed to convey approval or the discretion of the Engineer-in-charge of the work.
1.1.2 Indian Standard Specification :
The particular Specifications for the work are as detailed hereinafter. These specifications shall
be read in conjunction with the relevant Indian Standard Specifications. The obtainable local
practice as detailed in various regional handbooks of practice may be used subject to specific
approval from the Engineer-in-charge. Where the specifications in any of the standards are at
variance with the specifications detailed herein, the specifications herein shall govern.
1.1.3 Quality of Materials & General Standards of work :
The contractor under this contract commits himself to use materials conforming to relevant
Indian Standards / Codes and assumes full responsibility for the quality of all materials
incorporated or brought for incorporation in the work, the work shall be executed in accordance
with acceptable engineering practice and as per direction of the Engineer-in-charge.
1.1.4 Scaffolding :
All scaffolding and ladders required for the proper execution of the work shall be provided by the
contractor. The scaffolding should be stout and strong to prevent any collapse or displacement.
Proper measures for safety of workmen working on scaffolding should be taken by the
contractor.
The mode of measurements, wherever possible is specifically mentioned in these documents.
Where it has not been mentioned, it shall be as per provision of the relevant Indian Standards.
All the measuring tapes and other accessories necessary, shall be provided by the contractor.
The bidder along with his bid shall furnish a list of tools, plant and machinery which he intends to
use on the works in Bid document. The list should indicate the exact type of machine, its
capacity, year of manufacture, kind and capacity of propelling force, spare parts readily
available and all other pertinent information. The contractor is obliged to use the machinery
mentioned in his list if the Engineer-in-charge considers it necessary.
1.1.5 Surveying and staking :
It is the express responsibility of the contractor to bring to site all surveying instruments
necessary for the marking out, fixation of levels, etc. and conduct these survey operations
himself with utmost accuracy. The contractor shall put up stable bench marks etc. as necessary
for the work. Engineer-in-charge / his representative will be present when this work is being
carried out and will inspect all these operations with the contractor‟s assistance. The contractor
shall be entirely responsible for accurate setting out the work and he shall at his own expense
make good any defects arising from errors in the line and levels.
1.1.6 Dewatering :
Dewatering of accumulated water in all locations on work site from whatever source of cause
until the virtual completion of the entire work shall be done by the contractor at his own
expenses and shall not be separately paid for. The rates quoted by the contractor shall be
deemed to be inclusive of this.
1.1.7 Access to site, approach roads and roads within the premises :
The contractor shall at his own cost provide all approach roads required for the purpose of
carrying out the work in the most expeditious and efficient manner and shall remove the
temporary roads on completion. He shall acquaint himself thoroughly regarding condition and
suitability of public roads leading up to the limits of the premises and will provide vehicles for
transportation of materials which meet the requirements of these road conditions. It shall also be
the responsibility of the contractor to maintain at his own cost the road till the construction is
completed. The bidder is also to acquaint himself with local laws and bylaws and comply with all
police and highway authority requirements.
1.2 Earth work:
1.2.1 Excavation:
Excavation for trenches over areas and for pits, etc. shall be done to widths, lines and levels as
shown in drawings or to such lesser or greater widths, lines and levels as directed. The bottom
and side of excavation, required levels, profile, etc. watered and thoroughly rammed. Where the
contractor excavated below required level in good ground inadvertently or carelessness he shall
make up the void in concrete M-10 at his own expense. During excavation the contractor shall
take necessary precaution to retain earth, so that the earth will not slide or fall down to avoid
any accident and hamper the progress of work. He will take necessary steps to prevent the
damage to adjacent structure or existing services. He shall repair and make good any such
damages at his own expense to the satisfaction of the owner. A suitable path for men and
materials around the excavated pit should be maintained throughout the work. Stacking or
excavated earth from trenches, bids etc. shall be done away from the pit at a minimum distance
equivalent to the depth of pit/trenches/foundation up to a initial lead and lift as directed by the
Engineer-in-Charge.
1.2.2 Dewatering:
All water that may get accumulated in excavations during the progress of work from whatever
cause or source, shall be bailed or pumped out as necessary. The rates for excavation shall be
deemed to include the same, if not otherwise specified.
1.2.3 Timbering & excavation (Shoring)
Where the soil is soft and sides of excavation needs supporting, suitably designed planking and
strutting shall be provided. The rates for excavation shall be deemed to include all planking and
strutting as necessary.
1.2.4 Refilling around foundations:
Refilling around foundations shall be done with approved excavated materials. Refilling shall be
done in layers not exceeding 15cms thick, watered adequately and consolidated with pneumatic
tampers or other suitable compactors. The finished surface of filling shall be slightly proud to
bring it to finished level after watering and consolidation as directed. The rates for refilling
around foundations shall be deemed to include this.
All materials considered surplus shall be removed to destinations and disposed off as directed.
The disposal of the materials can be in any of the following ways as directed by the Engineer-in-
Charge of the work.
1. Filling in low lying areas.
2. Filling in at places of filling such as under floors, in roads etc.
3. Stacking of materials in pre-designated stacking yard.
4. Removal of materials outside the plot for disposal.
1.2.5 Filling:
Filling under floors or other places indicated shall be done with good quality sand conforming to
zone 2 or 3 I.S: 383. Filling shall be done in layers, each layer watered adequately and
consolidated to specified density by suitable compacting equipment. Thickness of each layer
shall not exceed 15 cm. The surface of the filling shall be finished to lines and levels as
required. The filling shall be compacted in such a manner as to guarantee full stability.
However, the site filling shall be done with Fly Ash from a source as instructed by the Employer
in writing. While the cost of Fly ash shall be borne by the employer, the transportation and
labour costs shall be the responsibility of the contractor.
1.2.6 Measurement:
Measurement for all excavation, filling, carting away and earthwork shall be in solid measure.
The rates quoted by the bidders are thus for solid measure units. The following factors shall be
applied to obtain quantities of solid measure.
Excavation : No reduction in volume
Filling, watered and : Volume shall be determined by levels
Consolidated in layers before and after compacted filling and by
measuring the lengths and breadth as required.
The mode of measurement for various types of excavations shall be as under:
a) In case of trenches, pits and areas, measurement shall be on the basis of width of foundations
and the depth of bottom of foundation (bottom of bed concrete, if provided) formation.
b) In case of pipe trenches and drains, measurement of width of trench shall be diameter of the
pipe plus an allowance of 50 cms. To allow for collars, flanges etc.
c) Excavation in rock shall be measured up to levels indicated or required. No undulations as
physically appearing after excavations shall be taken into consideration while arriving at the
quantities. The rates quoted by the contractor shall be deemed to include for this and no extra
is admissible.
1.2.7 Sub-grade Conditions:
When no data is available of soil formation and depth of water table of proposed work site, the
contractor should make his own arrangements of preliminary site investigation by actual
inspection of the site and surrounding areas to assess the nature of soil and to foresee the
difficulties that may arise during construction period. The contractor shall acquaint himself of
the above before filling up of the bid.
No claim whatsoever will be entertained on any account of conducting these exploratory works
or lack of investigation on the part of the contractor.
Concrete and reinforced concrete work shall be carried generally in conformity with the latest
Indian Standards IS: 456 and for provisions indicated here in below. All work is to be carried out
with utmost precision and up to date scientific know how and the contractor shall employ
thoroughly competent staff to achieve acceptable standards conforming to technical
specifications.
1.3.2 Cement:
Portland slag cement (IS: 455) shall be used wherever so directed by the Engineer in Charge or
as shown in drawings or Bill of Quantities. If directed, the contractor shall purchase cement as
fresh as possible after manufacture and where there is reason to believe the cement has been
long stored, the Engineer-in-charge may demand a Laboratory Test Certificate regarding the
character of cement and the contractor shall furnish the same at no extra cost. The Engineer-
in-charge shall reject any cement which in his opinion does not meet the required standards.
All bags and containers in which cement is packed shall be stored in a dry, weather tight,
properly ventilated structure with adequate provision for prevention and absorption of moisture.
The contractor shall at all times maintain for the inspection of the Engineer-in-Charge a log book
indicating the receipt of cement, brand and agent from whom obtained and the age of cement.
Cement, which has caked or perished by being wet or otherwise shall on no account be used on
the work.
Cement shall be consumed on the works in the same sequence as that of their receipt at site.
Cement reclaimed from cleaning of bags or from spillage from containers, or otherwise shall on
no account be used.
Portland Slag Cement is to comply to the relevant Indian Standard Specifications IS 455. This
standard stipulates that the slag constituent shall be not less than 25 per cent and not more
than 65 per cent of the Portland Slag Cement.
1.3.3 Fine Aggregate :
(i) Fine aggregate shall conform to latest Indian standards (IS:383). Sand shall be natural
sand, crushed gravel sand or crushed stone sand but it must be a well-graded sand
conforming to IS grading and its FM be 2.4 to 3.2. Use of sea sand is prohibited. It shall
be composed of hard siliceous material and shall be clean and of sharp angular grit type.
Sand shall be properly graded minimizing all voids.
(ii) Allowance for bulking of wet sand shall be made. Bulkage limit is to be restricted to less
than 20%. Silt content in sand should not be more than 5%. Laboratory equipment such as
measuring jars etc. are to be kept at site for time to time checking of bulkage and silt
content.
(iii) Sand shall be free from any harmful organic impurities. Quick colour test should be made at
site for the consignment of sand receiver. Colour test details are given below:
Colour Test of Sand:
The sand shall be tested with 3% solution of caustic soda (Sodium Hydroxide), which is called
“Colour Test”. This is a reliable indicator of the presence or otherwise of any organic matter in
sand as under.
(i) A colour less liquid indicates clean sand free from organic matter.
(ii) A straw coloured liquid indicates some organic matter but not enough to be seriously
objectionable; and
(iii) A dark colour means that the sand contains injurious amount of organic matter and
should not be used unless it is washed and a retest shows that it is satisfactory.
1.3.4 Coarse Aggregate:
Coarse aggregate shall be approved hard aggregate conforming to latest Indian Standards (IS:
383) details of which are as follows.
(i) Deleterious materials : less than 5%
(ii) Specific gravity : not less than 2.6 (2.6 to 3)
(iii) Water absorption value : about 1% by weight
(iv) Aggregate crushing value : for wearing surface less than 30%
for other concrete surface less than 45%
(v) Aggregate impact value : for wearing surface less than 30%
for concrete other than wearing surface less
than 45%
(vi) Aggregate abrasion value : for wearing surface less than 30%
for concrete other than wearing
surface less than 50%.
(vii) Soundness (sodium
sulphate method) : less than 12%
Aggregate, Gradation, storage, etc.
Aggregates of various specified sizes shall be stock piled properly and separately.
Aggregates shall be clean and shall not contain any foreign matter, silt, loose or
destructive substances, harmful chemicals etc.
Aggregates shall be stored in proper bins, which shall have good drainage to prevent the
inclusion of foreign matter and preserve the gradation. Sufficient live storage shall be
maintained to permit segregation of successive shipment, placing of concrete at the
required rate and such procedures as inspection and testing.
If directed, the aggregate shall be washed before use. The grading of aggregate for use
on works shall be as per the Indian Standards (IS : 456 )
1. Grading of Coarse Aggregate as per IS: 456
Sl No. IS size % Passing for graded aggregate of nominal size.
40mm 20mm 16mm 12.5
1 40mm 95-100 100 - -
2 20mm 30-70 95-100 100 -
3 16mm - - 90-100 100
4 12.5mm - - - 90-100
5 10mm 10-35 25-55 30-70 40-85
6 4.75mm 0-5 0-10 0-10 0-10
7 2.36mm - - - -
2. Grading of Single Size Aggregate as per IS: 456
Sl No.
IS size % Passing for single aggregate of nominal size.
40mm 20mm 16mm 12.5mm 10.00 mm
1 40mm 85-100 100 - - -
2 20mm 0-20 85-100 100 - -
3 16mm - - 85-100 -100 -
4 12.5mm - - - 85-100 100
5 10mm 0-5 0-20 0-30 0-45 85-100
6 4.75mm - 0-5 0-5 0-10 0-20
7 2.36mm - - - - 0-5
Proper sieve analysis shall be carried out to determine the best gradation obtainable from the
available aggregates. The sieve analysis shall be performed as per standard practice and as laid
out in the relevant Indian standards.
1.3.5 Water :
Water for all concrete work shall be clean, free from deleterious matter such as oils,
acids, alkalis, sugar and vegetable matter. Permissible limits for solids shall conform to
IS 456. Every attempt shall be made to use water which is fit for drinking purposes.
Water storage facilities provided by the contractor shall be maintained properly to
preclude contamination of water by any of the harmful substances. The quantity of
water to be added to concrete for mixing shall be such as to afford workability
consistent with strength requirements. Water cement ratio shall be maintained
constant as specified (0.45 for RCC and recorded in every batch of concrete. P.H. of
water shall be in the range 6-9.
The permissible limits, as per IS 456- areas following :
SL. NO. Tested as per Permissible Limit (Max)
(i) Organic------------------- IS 3025 (part – 18)-------------------200 mg/litre
(ii) In organic ---------------- IS 3025 (part 18) --------------------3000 mg/litre
(iii) Sulphates ( as SO3) ----- IS 3025(part 24)---------------------400 mg/litre
(iv) Chlorides (as Cl)--------- IS 3025 (part 32)---------------------2000 mg/litre for
concrete not containing embedded
steel and 500 mg / litre for RCC work.
(v) Suspended matter----- IS 3025 (part – 17) ---------------------2000 mg/litre
The water cement ratio, being of paramount importance governing the durability of concrete, it
should be of the lowest feasible value. In the subject under reference, it should be 0.45 for
M30 RCC and to achieve sufficient workability, it may be necessary to use suitable super-
plasticizer in the concrete mix to ensure efficient placement of concrete.
1.3.6 Plasticizers: -
The commonly available admixtures with good to high plastic zing effects are:
(i) Modified ligninsulphonates (MLS)
(ii) Sulphonated melamine condensates (SMF)
(iii) Sulphonated naphthalene condensates (SNF)
(iv) Poly Carboxylic ethers (CE)
Typical performance of water reducing admixtures are outlined below:
Type of super-plasticiser Typical dosage by cement weight Water reduction
MLS 0.2-0.8% Up to 10%
SMF 1.0-3.0% Up to 25%
SNF 0.8-2.0% Up to 25%
CE (Poly Carboxylic ethers)
0.5-1.5% Up to 40%
The super-plasticiser based on Poly Carboxylic Ethers (CE) is proving much better than others. The
type and dosage of Super-plasticiser to be used shall be subject to the approval of the Engineer-in-
charge. The dosage shall be arrived at through lab. tests / mix design tests as approved by the
Engineer-in-charge.
1.3.7 Types of concrete, strengths etc. :
The Bill of quantities specifies various types of concrete. The strengths corresponding to these
types is as per table below :
i. Types of Concrete
Sl.
No.
Type of Concrete 28 day Characteristic Design strength N/mm2
28 day Target Design Strength N/mm2.
1 M-15 15 15 + 1.65 X 3.5 =20.8
2 M-20 20 20 + 1.65 X 4.0 = 26.6
3. M-30 30 30 + 1.65 X 5.0 = 38.2
Note : The established values of standard Deviations shall be used. When adequate test
results (30 or more) are available and the target strengths revised thereafter. Efforts shall be
made to bring the standard Deviations up to date, preferably once a month.
Even though the Bill of quantities specifies various types of concrete, it is possible that the type
may be altered to suit the site conditions. The compressive strength indicated above pertains to
compressive strength tests on “work test cubes 15 x 15 x 15 cm, after normal curing for 28
days. The strength of preliminary test cubes shall be as per IS : 456.
The type of concrete for any particular situation of work shall be as per drawings.
Any construction in the coastal areas may be considered as exposed to “severe” environmental
condition. In assessing the level of severity, it shall be prudent to adopt a realistic attitude and
be even some what conservative in respect of the extent of coastal zone for the ultimate
durability of the structures.
Thus, besides using. Portland Slag Cement, the specific requirement on “durability aspects”, as
per Indian Standard IS 456, in respect of the following parameters, must be met :-
Minimum Cement Content
Maximum Water / Cement ratio
Cover to Steel Reinforcement.
All these requirements are related to the various „environmental exposure conditions. The
standard IS 456 classifies the environment into 5 levels of severity, that is mild, moderate,
severe, very severe, and extreme.
The parameters relating to minimum cement content and maximum water / cement ratio,
as per IS 456, are summarized below along with the minimum grade of concrete :-
Exposure Environment
Exposure Classifi- cation
Plain Concrete Reinforced Concrete
Min. (*) Cement content) kg/m
3
Max. water cement ratio
Mini. (*) Grade of concrete
Min.(*) Cement content) kg/m
3
Max. water cement ratio
Min. Grade of concrete
Coastal concrete sheltered from saturated salt air.
Moderate 240 0.60 M15 300 0.50 M25
Concrete exposed to coastal environment
Severe 250 0.50 M20 320 0.45 M30
Concrete exposed to sea water spray / or in contact with aggressive soils / ground water
Very Severe
260 0.45 M20 340 0.45 M35
Arrangement for slump cone test shall be kept at site to arrive at workability whenever
theEngineer-in-charge wants to check at site. Arrangement for compacting factor test shall also
be made to Tests for determination of strength of concrete.
ii. Strength of Concrete
As will be apparent from the Bill of quantities, the strength of concrete specified is the criteria and the
contractor shall make every effort to obtain the strength by good quality. Control. In case of concrete,
which does not obtain the specified strength at 28 days, such work shall be demolished and
reconstructed to obtain the requisite strengths, as directed by the Engineer-in-charge. It has also to be
ensured that the concrete conforms to the durability requirements viz. all requisite parameters
concerning minimum cement content, maximum free water cement ratio and the specified cover to steel
as well as good workmanship to obtain full compaction of concrete with non honey-combing in the
finished concrete etc. have to be meticulously implemented on the job including fully efficient curing of
concrete surfaces. To determine whether concrete in any particular part of the work is of the requisite
strength or not, test cubes (works test cubes) shall be made from samples collected from the concrete
being poured for the particular part and determined as per acceptance criteria detailed hereinafter. The
salient features for the collection of samples is as indicated below.
Testing of Concrete Cubes for determining Compression strength:
1. Quality
As specified
2. Compression strength
Shall be as specified for the particular type of concrete.
3. Criteria for acceptance of work
Part or element pf concrete work shall be deemed to be acceptable, provided the three cubes tested for 28 days strength conform to the following as per IS 456.
iii. Acceptance criteria of concrete cubes. (As per IS 456)
The Concrete shall be deemed to comply with the strength requirements when both the following conditions are met.
(a) The mean strength – determined from any group of 4 non-over lapping consecutive test:
(b) Any individual test result complies with the appropriate limits in column 3 of the following Table-A
Table A. Characteristic Compressive Strength Compliance Requirement
Specified Mean of the Group of Individual Test Grade 4 Non-Over lapping Results in N/mm
2
Consecutive Test Results In N /mm
2
1 2 3
M15 ≥ fck + 0.825 X established Standard deviation (rounded Off to nearest 0.5 N / mm
2) ≥ fck –3 N /mm
2
OR
fck + 3 N /mm2
which ever is greater M 20 ≥ fck + 0.825 X established standard deviation (rounded off to nearest 0.5 N /mm
2 ≥ fck – 4 N / mm
2
OR fck + 4 N / mm2
Whichever is greater fck = 28 days characteristic compressive strength
In the absence of established value of standard deviation, the following values of standard deviation
shall be assumed, and attempt should be made to obtain results of 30 samples as early as possible
to establish the value of standards deviation of the specified grade of concrete.
Assumed Standard Deviation Grade of Concrete Assumed Standard Deviation (N /mm
2)
M10 & M15 3.5 M20 & M25 4.0 M30, M35 & Above 5.0
The above values correspond to the site control having proper storage of cement‟ weigh batching of
all materials; controlled addition of water regular checking of all materials‟ aggregate grading and
moisture content; and periodical checking of workability and strength. Where there is deviation from
the table, the values give above shall be increased by 1 N /mm2.
Concrete shall be liable to be rejected if it is porous of honey combed, its placement has been
interrupted without providing a proper construction joint, the reinforcement has been displaced
beyond the tolerance specified or the construction tolerances have not been met. The concrete
shall be accepted only after the contractor carries out suitable remedial measures to the full
satisfaction of the Engineer-in-charge.
In case of doubt regarding the grade of concrete used, either due to poor workmanship or based on
results of cube strength tests, core tests shall be carried out. The points from which cores are to be
taken and the number of cores required shall be at the discretion of the Engineer-in-charge and
shall be representative of the whole of concrete concerned. In no case, however, shall fewer than
three cores be tested in accordance with IS – 516. Concrete in the member represented by a core
test shall be considered acceptable if the average equivalent cube strength of the core is equal to at
least 85% of the cube strength of the grade of concrete specified for the corresponding age and no
individual core has a strength less than 75%.
1.3.8 Quantum of Cubes and testing as per IS 456.
The minimum frequency of sampling of concrete of each grade shall be in accordance with the
following.
Quantity of Concrete No. of samples
In the work (m3)
1 - 5 1
6 - 15 2
16 - 30 3
31 - 50 4
51 and above 4 + one additional sample for
each additional 50 m3 or part there of.
NOTE: At least one sample shall be taken from each shift. 3 test specimens shall be made from each
sample for testing at 28 days. Additional 3 specimen cubes be cast to determine the strength of
concrete at 7 days.
The direction of the Engineer-in-charge in this regard shall be final and binding.
1.3.9 Cubes:
The size of cubes to be prepared and tested shall be 15 X 15 X 15 cm (6” x 6” x 6”)
Cubes each are intended for testing at 7 and 28 days respectively and determining the strength.
Cubes tested at 7 days should give a strength of not less than 70% of the corresponding strength of
structural members and also for works at various levels. It shall also be collected whenever the usual
quality for a particular strength is suspect. The acceptance criteria of concrete cubes as given above
and in IS: 456 is to be followed. The test results of the sample shall be the average of the strength of 3
specimens. The individual variation shall not be more than ± 15% of the average. If more, the test
results of the sample are invalid.
1.3.10 Preparation and Testing of Cubes:
Casting of cubes, preparation of moulds for the same, processing and curing the cubes and testing the
same shall be as per detailed instruction laid down in the relevant Indian Standard as amended up to
date.
1.3.11 Equipment modules testing etc.
It is entire responsibility of the contractor to prepare and get the cubes tested and provide for all
materials, labour, modules, equipment, faculty and charges for testing etc. The contractor‟s rate for
concrete work shall be deemed to include for these and no extra payment whatsoever is admissible on
this account.
1.3.12 Slump:
The slump cone tests shall be required to be performed to establish workability and the same shall be
carried out free of cost. Suitable Plasticiser / Super plasticiser may need to be used, as directed by the
Engineer-in-charge, in M-20 M-30 & grade RCC to obtain the requisite workability of concrete at the
specified water cement ratio.
1.3.13 Form Work:
Form work shall be properly designed and constructed such that it is rigid enough to remain free from
bulging, sagging or replacement during placing of concrete. It should also be so constructed as to
facilitate removal of the same without damage to concrete. The formwork shall be adequately watertight
to prevent any loss of liquid and grout. All formwork shall be accurately erected in regard to size, levels
etc. In case of timber form work, the surface of forms in contact with concrete surface shall be wrought.
The joints between boards shall be close fitting and very thin for the concrete surfaces designed to have
exposed finish and not intended to be plastered. Surface of forms coming in contact with concrete shall
be treated with approved emulsions or mineral oil. It shall be ensured that these emulsions do not stain
or discolour the natural colour of concrete.
All form work shall be removed as per latest IS 456. Form work shall be removed without shock or
vibration. Edges of beams and columns if required to have chamfers shall be obtained by suitably fixing
triangular edge beads 20mm x 20mm to the forms. (No extra is admissible to the contractor on account
of these incidental and minor works for sizes up to and including 20mm x 20mm). Likewise where drip
notches are necessary they should be formed by suitably shaped fillets nailed in forms.
Form work for all beams and other horizontal construction members shall be built to an upward camber
of 1/300” of the span (in the center) to nullify the effects of optical
illusion. The camber shall be in addition to such camber as may be required and shown in the Static
Calculations.
The tolerance on the shapes, lines and dimensions shown in the drawings shall be within the limits
given below:
(i) Deviation from specified dimensions of cross-section of columns and beams……………………………..+ 12mm - 6 (ii) Deviation from dimensions of footings
1. Dimensions in plan…………………………+ 50mm - 12
2. Eccentricity………………………………….0.02 times the width of the Of deviation but not more than 50mm.
3. Thickness…………………………………...± 0.05 times the specified Thickness.
(iii) Plumb, specified Batter, the lines & surface of Columns walls etc…………………………….± 12 mm (in 3m of height) ± 18 mm (in 6m of height) & ± 30 mm (in 12m of height)
After the forms have been erected to line and grade, the same shall be meticulously inspected as to
their adequacy. If the forms are not tight, there will be loss of mortar, which shall result in honey-
combing of concrete or a loss of water which shall cause sand streaking. If the inspection reveals
that the forms are not braced sufficiently to stay in alignment during concrete placement, concreting
operation shall not be commenced till the Contractor sets right the deficiencies and the forms re-
inspected and found O.K. it shall also be checked during inspection that the formwork as erected
conforms to the specified line, grade, alignment to the specified tolerance limits. Fully adequate
rigidity of forms is of paramount importance since the tolerance limits specified are for the finished
concrete and not for the forms. Consolidation of concrete by the vibrator requires that the forms be
tight and strong. Stability is a very important consideration in the form work and the Contractor shall
be made to understand that the common deficiencies resulting in failure of formwork.
(i) Inadequate cross bracing: (ii) Inadequate horizontal bracing: (iii) failure to regulate the rate of
placement of concrete in the forms and (iv) abnormal form displacements during & after concrete
placement due to inadequate provision for lateral pressures.
The contractor should ensure that ready access is provided for proper placement of concrete,
vibration of concrete, and for inspection of these operations.
1.3.14 Horizontal Construction Joints :
A very common blemish on formed concrete surfaces in the off “set” often found at horizontal
construction joints where forms have given way (viz yielded) a fraction of couple of centimeters at
the bottom of the new lift. These off –sets should be prevented by so setting the forms as to fit
snugly & tight against the top of concrete in the previous lift and then securing the forms so as to
remain in tight contact during the concrete placement operation. The anchoring shall be done by
using an ample number of ties and bolts above and within a few centimeters of the construction
joint. The ties in the top of previous lift cannot be relied on to prevent a slight spreading of the forms
at the joint. Forms shall overlap the hardened concrete in the lift previously placed by not more than
about 50 mm, though 25 mm lap is considered satisfactory. The Contractor should take utmost care
to ensure that the construction joints are smooth, free from sharp deviations, projections or edges.
1.3.15 Spalling from the face of concrete :
Occasionally, spalling may occur from the face of concrete when forms are removed. This is often
caused by rough spots on the forms where mortar adheres strongly enough to overcome the tensile
strength of green concrete. Such areas on the forms must be cleaned, polished and the covered
with form oil by the contractor. Wire brushing of timber forms shall be done very carefully to remove
the set-mortar.
1.3.16 Filling of Bolt Holes
(she – Bolts ) or Holes of ties / Rods. The holes left in the concrete surfaces by the She – bolts or
rods etc. shall be duly reamed, cleared, cleaned and filled with – “dry pack mortar” by the
Contractor within a reasonable period of the removal of formwork. Such filling shall be made flush
with the concrete surface. No holes shall be left without the dry-pack mortar filling.
1.3.17 Inspection of Forms :
The Contractor shall inform the Engineer-in-charge well in time (well before commencement of
placement of concrete in the forms) to enable him or his representative to inspect the formwork as
to its adequacy, suitability, alignment, strength and overall fitness. However, such inspection shall
not relieve/ absolve the Contractor of his SOLE RESPONSIBILITY for the proper formwork, and
safety of men, materials, equipment and the consequent results / consequences.
1.3.18 Transporting and Pouring of Concrete :
No mixing of concrete shall be started unless the situation where they are to be poured are
prepared and kept ready. Concrete shall be poured immediately on preparation. Transporting of
concrete shall be done as speedily as possible and also in a manner to prevent segregation of
aggregates. No re-tempered concrete shall be allowed to be used on the works. No concrete shall
be allowed to fall from a height more than 1.2o Mt. Where the concrete is to be placed at more
depth it should be done through chute as directed by Engineer-in-charge.
Lift of concreting shall normally be not greater than 2.00 m in height.
Before fresh concrete is placed against an already cast and hardened section, such surfaces shall
be roughened, swept clean, moistened with water and treated with cement slurry. Fresh concrete
shall then be poured as required. Under no circumstances, concrete mixed for more than 20
minutes shall be used where initial setting has commenced. Dewatering of excavations for
concreting where necessary shall be carried out by the contractor as directed and the rates quoted
by the contractor are deemed to be inclusive of such dewatering. No concreting shall be done in
adverse weather condition without proper precautions or approval from Engineer-in-charge. No
hand-mixing of concrete shall be allowed. In an exceptional / unavoidable circumstance, it shall be
allowed under the specific approval of Engineer-in-charge and that too for a small or restricted
quantity only , and in such a situation, 10% more cement shall be used than that used when
concrete ingredients are machine mixed.
1.3.19 Consolidation and processing of Concrete :
Concrete for all works shall be compacted by means of suitable vibrating equipment. Spare
vibrators needles which are in complete working condition shall always be kept ready at sites to be
put into commission incase of failure of the vibrators or needles under use. The vibrators shall be
operated by skilled personnel, thoroughly instructed as regards the mode, frequency, duration etc.
regarding vibration.
1.3.20 Finish to concrete surfaces :
Finish to concrete surfaces at various situations shall be as per directions of engineer-in-charge.
Where, form finish is specified, the final surface shall be smooth and even and no-undulations,
ridges, spots etc. shall be permitted. They shall be laid to pattern as directed. In case surfaces
intended and directed for form finish, exhibit any of the defects above mentioned, the surfaces shall
be rubbed with carborundum and finished as directed at the risk and cost of the contractor. The
decision as to the acceptability or otherwise of a surface will be notified by engineer-in-charge and
the contractor will implement the instructions accordingly. The honey-combed concrete shall be
meticulously rectified to the full satisfaction of the engineer-in-charge.
1.3.21 Concrete Cover for Reinforcement :
Where not specifically indicated in the drawings, concrete cover for reinforcement shall be as per
the latest Indian Standards and as per directions at site from time to time. Proper concrete cover
blocks to suite various covers as required shall be provided in adequate numbers sufficiently ahead
of the work.
In respect of the nominal cover to all steel reinforcements including links., it should not be less than
the following to meet the durability requirement ( as per IS 456:2000) :-
Exposure Environment Exposure classification Nominal concrete cover in mm not less than
Concrete surfaces sheltered from saturated air in coastal areas
Moderate 30
Concrete exposed to coastal environment
Severe 45
Concrete exposed to sea water spray / or in contact with aggressive soils / water.
Very Severe 50
The actual cover should not deviate from the required nominal cover by +10mm and -0mm.
1.3.22 Construction Joints :
Construction joints in concrete work shall be provided as far as possible only at predetermined
places in consultation with Engineer- in-charge. Joints shall be provided as specified in latest Indian
standards or as directed by Engineer-in-charge.
1.3.23 Curing :
It is very important that all cement concrete work shall be cured properly. All concrete work shall be
kept continuously in a damp or wet condition by pouring or by covering with a layer of moist sack,
canvas, hession or similar material for a minimum period of 14 days from the date of concreting as
per IS 456, prolonged curing beyond even 14 days shall be desirable (viz keeping the concrete
continuously wet). Since the Water –cement ratio of concrete shall be low (0.45 for RCC M30 grade
concrete & 0.5 for M20 grade concrete as per IS 456:2000 Table 5), it is all the more important to
ensure prevent of moisture loss from the concrete through fool-proof and prolonged curing. Water
used for curing shall also be free from any deleterious substances and shall generally be fit for
drinking. The work shall be adequately protected from drying, winds and direct sun rays. The
contractor should arrange at his own cost a temporary water supply line with provision of suitable
lines, pump etc. for curing and constructional purpose to reach all heights.
The contractor shall not be allowed to commence the work of concrete placement until he makes all
the curing arrangements to the full satisfaction of the engineer-in-charge (viz. water tanks, pumps,
delivery lines, spray nozzles etc. as well as the requisite crew earmarked specifically for
undertaking curing). Payment for the concrete placed shall be made only after its specified curing
has been done to the full satisfaction of the engineer-in-charge.
1.3.25 Opening and inserts :
All opening and inserts which are designated in due time or as required for services, will be exactly
provided by the contractor including supply of materials. The contractor should also fix the anchors
or such items which may be supplied by the proprietor in exact position and in perfect lines and
levels, inserts apply to such items as timber, dowels, bolts, loop, brackets, suspension, irons,
hooks , screws, plates, pipe, pipe of various types and diameter etc. Openings in concrete or
masonry must be provided in exact location, to correct shape, size and depth or slightly bigger, as
shown in drawings or as instructed. It must be clearly understood that provisions of inserts and
openings as contemplated in this contract are to be carried out with “utmost precision” and any
deviation of the same from that as shown in drawing or instructed have to be rectified by the
contractor at his own cost and responsibility. The contractor should make provision of openings to
deep beams and their members at bottom or at lower level as necessary for cleaning purpose prior
to concreting.
1.3.26 Steel reinforcement:
All reinforcement for concrete work shall be corrosion resistance steel (CRS 42) and conforming
strictly to the latest Indian Standards. They shall be of tested quality. Reinforcement shall be
fabricated to shapes and dimensions shown on the drawing and shall be placed where indicated on
the drawings or required to carry out the intent of drawing and specifications or as directed by
Engineer in charge. Before placing, reinforcement shall be thoroughly cleaned of loose rust, coating
etc. which would result in reducing or destroying the bond. Oiling the bars to clean them is strictly
prohibited. Bending, straightening, cutting etc. operations shall be carried out in a manner not
injurious to the material. Assembly of reinforcement, placing of reinforcement, Tolerance for Cover,
welding of joints etc. shall generally conform to the Indian Standard specifications. IS 456.
1.3.27 Placing of Reinforcement.
Before the reinforcement is placed, the surfaces of bars and the surfaces of any metal bar supports
shall be cleaned of all rust, loose mill scale, dirt grease and any other objectionable matter.
(ii) All reinforcement bars shall be accurately placed in exact position shown in drawings
and shall be securely held in position during placement of concrete by annealed binding
wire, and by using stays, blocks, metal chairs, spacers or other approved devices at
sufficiently close intervals (less than 1 m interval) so that the bars do not sag.
(iii) Wire for binding reinforcement shall be soft and of annealed mild steel of 16 SWG and
shall conform to IS 280
(iv) The bars shall not be allowed to sag between the supports and also not allowed to be
displaced during concrete placement. Also, the contractor has to ensure that no
disturbance is caused to the reinforcement bars already placed in concrete.
(v) All devices used for positioning of bars shall be of non-corrodible material. Metal
supports shall not extend to the surface of concrete except where shown in the
drawings. Pieces of broken stone or brick or wooden block shall not be used.
(vi) The contractor must ensure that the CONCRETE COVER AS SPECIFIED IS
METICULOUSLY PROVIDED.
All bars protruding from concrete and to which other bars are to be spliced, and
which are likely to be exposed for a long period. SHALL BE PROTECTED BYA THICK
COAT OF NEAT CEMENT GROUT.
(vii) Reinforcing bars of 25 mm in diameter and less may be either lapped or but welded
whichever is considered more practical by the Engineer.
(viii) Reinforcing bars of 28 mm in diameter and larger may be connected by butt welding
provided that the lapped devices will be permitted if found to be more practical than butt
welding and furthermore that the lapping does not encroach on cover limitation or hinder
concrete or reinforcement placement. Electric are welding shall, preferably, be used.
(ix) Tolerance for Cover. Unless specified otherwise, actual concrete cover should not
deviate from the required /specified nominal cover by + 10 mm.
All reinforcement shall be bent cold. Unless otherwise directed, reinforcement
shall not be spliced at points of maximum stresses. Engineer in charge shall be
informed of the same before such splicing is taken up. Laps and splicing shall conform
to the latest Indian Standards.
Reinforcement shall be accurately tied at all intersections and laps with 16 SWG
soft drawn binding wire, such that the reinforcement will give a rigid structure. Binding
wire will not be measured or accounted for separately. The contractor‟s rate for
reinforcement will be measured and paid for according to bending lists without
allowances for cutting, wastage, binding wire etc. authorised laps, hooks, chairs,
spacers etc. shall however be accounted for in case, the contractor or engineer desires
to resort to welding or swivel nuts, there shall however be made as if the laps have been
provided and no extra claim whatsoever shall be admissible on this account
Reinforcement shall be assembled in place with proper concrete cover blocks to
suite various covers as required.
1.3.28 Measurements:
All measurements shall be as given below or where not given as per latest IS : 1200.
Concrete will be compensated for according to its actual volume.
The computation will be based upon the construction plans only and no site
measurements shall be taken for this purpose. All incidental work stated in the Technical
specifications and also dewatering at the time of concreting are deemed to have been included
for in the unit prices quoted by the contractor. Opening with an area larger than 0.1sqm shall be
deducted from concrete quantity and where openings are smaller, these shall not be deducted.
Form work will be measured and paid for according to their contact area. The unit prices
of the forms incorporates all scaffolds, nails, clamps, and all incidental work. Openings with an
area larger than 2m2 shall be deducted from work quantities and the form work required for
sides of such openings shall be paid for. Openings of less than 1 m2 area shall not be deducted
from work quantities and no allowance for from work for sides of such openings shall be made.
Reinforcement steel will be compensated for according to the approved bending lists
without allowances for cutting, rolling margin and waste. Binding wire, cover blocks etc. will not
be measured or paid for separately. The contractor shall prepare the Bar Bending Schedules
and incorporate the same on the reinforcement drawings as directed and submit it to engineer
in charge for approval.
All openings and inserts which are indicated in drawings and as per requirements for
services shall be provided at exact positions and no payments shall be made for providing or
fixing these. Only such openings or inserts which have not been indicated earlier or such
additional openings / inserts required specially due to changes made by engineer in charge
shall be paid for. Excepting for the above, all other measurements shall be as per stipulations
under the latest Indian Standards Mode of Measurements for Building works.
Information on cement concrete
Sl.
No.
Information Item No.1 of BOQ
Item No.4 of BOQ
Item No.5 of BOQ
Item No.6 of BOQ
Item No.22 of BOQ
1. Type of Mix
(Design mix or nominal mix)
Design Mix Design mix
Design mix Design mix
Nominal mix
2. Grade designation M30 M15 M20 M30 M20
3. Type of cement Slag cement (I.S : 455 )
Slag cement (I.S : 455)
Slag cement (I.S : 455 )
Slag cement (I.S : 455 )
Slag cement (I.S : 455 )
4. Maximum nominal size of aggregates (mm)
20 20 20 20 12
5. Minimum cement content(kg) / m
3 of cement
(for design mix content)
320 - 250 320 -
6. Maximum water cement ratio ( for design mix concrete)
0.45 - 0.50 0.45 -
7. Maximum quantity of water for 50 Kg. Of cement (Nominal mix)
- - 32 - 32
8. Workability
(slump in mm)
100 to 150 (water-free unlined holes) 150 to 200 (for concreting by tremie)
75 to 100 50-75 25-75 -
9. Exposure condition Severe Severe Severe Severe Severe
1.4 Under reamed Piles :
Latest I.S. specifications to be followed for execution of the items are (1) I.S. 2911 (Part – III &
1.4.1 General: At the time of filling his tender, the contractor shall visit and inspect existing site to
examine the nature of ground, type of soil levels etc. No claim or allowance what so ever shall
be admissible on this account or on account of omissions in the levels or the description of the
ground turning out to be different from what was shown on the drawings.
1.4.2 Setting out: The contractor shall locate and layout all the piles at his own cost or as per
drawings and approval of the Engineer in charge. If at any time during the progress of the work
any error shall appear or arise in the position, levels, divergence & alignment of any part of the
work, the contractor on being required to do so by the engineer in charge shall at his own cost
rectify such errors to the satisfaction of the engineer in charge unless such error is based on
incomplete data supplied to the contractor. The contractor shall carefully protect all bench
marks. Pillars, sight rails, pegs and other things used tin setting out.
1.4.3 Material:
i. Concrete: The concrete for piling work shall be controlled as per specifications for the
cement concrete and of grade specified on the drawings.
ii. Reinforcement: The reinforcement for piling work shall be as per specifications for the
cement concrete and of grade specified on the drawings.
iii. Bentonite : Bentonite as brought to the site and prior to mixing shall be in accordance
with the following specifications :
(a) a certificate is to be obtained by the contractor from manufacture of the bentonite
powder stating the manufacturer‟s consignment and the properties of consignment as
determined by the manufacturer. The certificate shall be made available to the engineer in
charge on request.
(b) The bentonite powder shall be mixed thoroughly with clean fresh water. The percentage
of bentonite used to make the suspension shall be such as to maintain the stability of the
excavation trench / bore.
(c ) Control tests are to be carried out on the bentonite suspension using suitable apparatus
to determine.
A. The density
B. The viscosity
C. The shear strength
D. The PH value of the freshly mixed bentonite
These tests shall be carried out initially until consistent working pattern has been
established.
1. When the tests show consistent behaviour some or all tests maybe discontinued at the
discretion of the engineer in charge.
2. Prior to placing concrete the contractor shall ensure that contaminated bentonite
suspension has not accumulated in the bottom of the trench to impair the free flow of
concrete. The contractor shall state the method of testing checking this item along with
the tender and obtain approval of the engineer in charge prior to commencement of the
work.
3. The temperature of the water used in mixing bentonite suspension and of the
suspension and of the suspension supplied to the trench excavation shall not be less
than 5 deg. Centigrade.
4. During construction the level of the bentonite suspension in the trench shall be
maintained within the depth of the guide walls and at a level not less than 1.0 m. above
the level of external standing water if any.
5. In the event of the sudden loss of bentonite suspension, the trench shall be backfilled
without delay and the instruction of the engineer-in-charge shall be obtained on further
course of action.
6. Where saline or chemically contaminated water is encountered, special measures shall
be taken as desired by the Engineer-in-charge.
7. All reasonable steps shall be taken to prevent the spillage of bentonite suspension on
the site away from the immediate vicinity of the wall. Discarded bentonite and
suspension, which has been pumped from the trench, shall be immediately removed
from the site.
1.4.4 Piling System.
i. These specifications cover only bored cast-in-situ under reamed piles.
ii. Termination levels of piles shall be as shown on the drawings or as decided by the
engineer-in-charge during the progress of construction keeping in view the initial test result.
iii. In order to satisfy himself about the adequacy of the proposed length and anticipated safe
load carrying capacity of the piles the contractor shall examine the soil data available with
the engineer-in-charge.
iv. A pile capacity assumed by the contractor in his quotation whether it is the one that is given
in the drawing or is the one computed by him will be guaranteed by him.
v. The assumed safe carrying capacity of the piles shall confirm to relevant I.S. specification
for working piles.
vi. If the interpretation of load test indicates that the safe bearing capacity of the piles is less
than the assumed and guaranteed by the contractor additional piles will be provided by the
contractor at his own cost.
vii. The contractor shall guarantee safe bearing capacity of all piles.
1.4.5 Under Reamed Piles:
i. Under reamed piles shall generally be in accordance with the relevant provisions of IS 2911.
ii. The diameter of the under reamed bulb shall be 2.5 times the diameter of the pile stem.
iii. Unless shown the center to center spacing to the piles shall not be less than twice the
diameter of the bulb.
iv. The piles shall be designed to carry compressive as well as up lift forces due to ground water
head.
v. The theoretical calculation of the load carry capacity and the uplift or anchorage capacity of the
piles based on the soil conditions shall be submitted to the Engineer-in-charge.
vi. Effect of grouping the piles shall be considered in the design calculations.
vii. The Engineer-in-charge reserves the full right of demanding modification or complete revision of
design calculations submitted by the contractor.
viii. The Engineer-in-charge reserves the full right to adjust the bearing capacity of the piles
depending on the performance of test loading.
1.4.6 Construction of Techniques:
i. Safety of existing structure: The contractor shall take every precaution to avoid damage to the
existing structures in the vicinity as a result of construction of pile foundations. All claims arising
out of damage to the existing structure due to the construction of piles shall be done by
contractor.
ii. Bore holes: Boreholes shall be made by any standard method. The contractor will submit along
with the tender a description of the equipment and of the method of the boring he proposes to
use for checking and approval by the Engineer-in-charge.
iii. If high water table is encountered causing possible instability of the bores, boring and under
reaming shall be carried out using a suitable fluid such as betonies slurry. In addition normal
spiral or modified augers having arrangements to avoid back suction shall be used.
1.4.7. Placing of Concrete:
i. The boreholes shall be cleaned of all soil cuttings and sediments before placing concrete.
ii. Concrete shall be placed through a funnel so as to fill the entire volume of borehole without
formation of voids. Mechanical vibrators shall not be used.
iii. Under water concreting shall be carried out by displacement method and a termite pipe of
diameter of not less than 15 cm having suitable protective arrangement at the lower end may be
used.
iv. The minimum pile stem diameter for under water concreting shall be 25 cm.
v. The volume of concrete placed shall be observed in the case of first few lines. The average
figure thus obtained shall be used to check possible undue variations in the volume in the
subsequent piles. In case of significant variations, the contractor shall investigate the possible
causes to the complete satisfaction of the Engineer-in-charge whose decision in this regard will
be final and binding on the contractor.
vi. When using the bentonite slurry technique utmost care shall be taken to avoid mixing of slurry
with concrete. In any case the method of concreting shall be subject to the approval of the
Engineer-in-charge.
1.4.8 Finish Pile Heads:
i. The top of the piles shall be brought up above the specified cut off level by at least 30cm. To
permit all the laitance and weak concrete to be removed and to ensure that the pile can be
properly keyed into the pile cap by a minimum of 5 cm. This additional concrete shall not
however be paid extra.
ii. The reinforcement in the pile shall be exposed for a length of at least 50 times the diameter
of the Tord steel used or as specified in the drawings beyond the theoretical point of cut off
of the pile to permit to be adequately bended into the pile cap.
1.4.9 Control of Alignment and Tolerances:
i. Errors in setting out shall not exceed 12mm, measured horizontally from the center of the
piles.
ii. If the piles are not found to be in the exact position or out of plumb by more than 1% or if
they are found to be skew or defective in any other manner, they shall be rejected and the
decision of the Engineer-in-charge will be final and binding in this regard.
1.4.10 Defective Piles:
i. The Engineer-in-charge will have full authority to reject any pile at the time of chipping of
excess concrete to bring the level of the pile head to the cut off level, in case it is found
that,
a. Diameter of the pile at the cut off level is smaller than the diameter specified.
b. Location of the pile is outside the limitations prescribed in these specifications.
c. Concrete at the cut off level is of poor quality or is of less strength than had been
specified.
d. Diameter of bars, spacing, shapes or lengths of piles reinforcement do not conform to
details given in the drawings or the reinforcement cage is disfigured, distorted, displaced
or other wise damaged in any manner.
e. Anchorage length of the reinforcement bars at the cut of level is inadequate.
ii. The contractor shall make good the piles, pull out the piles or provide new piles in place
of the rejected piles at his own cost and without any additional cost to the client even if
the pile had been accepted at the time of boring. The final acceptance of all piles shall
be made after the pile head has been brought to the cut off level, all reinforcement
required to be embodied in pile cap exposed and after all measurement have been
completed vis a vis the layout of the piles.
1.4.11 Load Tests:
i. Testing Procedure: The contractor, along with his tender, shall submit a description of
his procedure for carrying out load tests. The engineer-in-charge reserves the full right
to demand a modification of the test procedure proposed by the contractor at no extra
cost.
ii. Number of Initial test Piles: To determine the safe load of a pile or group of piles the
cyclone shelter as per IS 2911 (Part IV). No payment shall be made for initial test piles
and it‟s testing. The contractor should include in his rate his expenditure towards initial
load test piles and initial load testing.
iii. Routine Load test: Routine test shall be conducted on 2% of the total number of piles,
for which the contractor will be paid as per relevant items in the BOQ.
iv. Equipment: The contractor shall provide all necessary equipment for applying specified
vertical load on the top of the test pile and for measuring the settlement of the pile.
v. Loading device: the device for giving the vertical load shall be of suitable design to avoid
impact, lateral forces, tilting etc. and shall have an arrangement for gradual application of
load and for readings at close intervals. The load shall be in the form of suitable Kent
ledge.
vi. Apparatus for measuring settlement: The apparatus for measuring settlement shall consist
of a dial gauge permitting a reading of 0.02 mm accuracy. The dial gauges shall be fixed
to the datum bar whose ends rest upon non-movable supports. The supports for datum
bar with reference to which the settlement of the pile would be measured shall be at least
5 d away, clear from piles, “d” being the diameter of the piles.
vii. Loading procedure: the head of the pile shall be at the cut off level and shall be capped in
such a manner as to prepare a horizontal place – bearing surface. The maximum test load
shall be twice the anticipated working load on the pile Alternative loading and un loading
shall be carried out for 25, 50, 75, 100, 125, 150, 175, 200 percent of the anticipated safe
test load. Settlement and time shall be recorded in the beginning and end of loading and
also for at least 2 hours after completion of each loading and unloading.
viii. Sustained loading: The maximum test load of twice the anticipated working load on the
pile shall be applied in increments of 25, 50, 75, 100, 125, 150, 175, and 200 per cent of
the anticipated working load. Settlement reading shall be taken to the accuracy of 0.02
mm before and after the application of each new load increment. Additional load shall not
be applied until the rate of settlement under the previous increments is less than 0.02 mm
per hour or 2 hours have elapsed which ever occurs first. When loading has been
completed, the full test load shall remain on the pile for 24 hours or for a longer period if
the necessity is there or if indicated by the rate of the settlement of the pile and settlement
reading shall be taken during and at the end of the period. During the unloading of the
pile, the rebound shall be measured when the load remaining on the pile amount to 75,
50, 25 and 0% of the full test load with decrements of load released at not less than half
hour intervals and with measurements of the rebound being released at not less than half
hour intervals and with measurements of the rebound being made immediately before and
after each decrement. The final rebound shall be recorded 24 hours after the entire test
load has been removed.
ix. Reports: The contractor shall submit the report of the load test, which shall include the
following information.
a) A description of the soil condition at the location of each test pile.
b) A description of the pile and its boring record including boring time, rate,
types of soil strata encountered and the stability of the sides, density of the bentonies
used and any other relevant data.
c) A tabulation of the loads and settlement readings during the loading and
unloading of the pile.
d) Time load settlement curves.
e) Remarks concerning unusual occurrences if any during boring or loading of piles.
1.4.12 Basis of measurement:
i. The length of the pile shall be measured from the theoretical cur-off point of the pile to
its termination level.
ii. The length of the empty boring will be measured from the top of existing ground level at
the time of starting of the particular pile to top of the theoretical point if cut off of the
particular pile.
iii. The rate for the piles shall include the boring concreting with slump as per IS
specifications complete in all respects in respective of the construction technique used
unless otherwise specified in the schedule of quantities.
iv. The rate for load testing shall include the cost of all different operations involved like
arrangements of the equipment including all Kent ledge, or dial gauge as well as
preparation and furnishing of reports complete in all respect.
v. The payment for the routine test pile or group of piles shall be made to the contractor
only when the test is found to be satisfactory. For tests, which are found to be
unsatisfactory, or which are not completed due to any reason whatsoever, no payment
shall be made to the contractor.
1.4.13 Interpretation of test results:
i. All test results and piling records shall be submitted to the engineer-in-charge in
duplicate for his confirmation.
ii. Test results shall generally be interpreted is per relevant Indian Standard Code of
practice. The engineer-in-charge may refer the test results to the consultants for their
opinion and decision.
1.5 MASONRY
1.5.1 Materials:
i. Brick:
(a) All bricks shall be table moulded, burnt bricks of required class & quality. They shall be hard
sound and well burnt with sharp edges and of uniform sizes & shapes. Bricks shall be a neither
under burnt nor over burnt and shall be free from cracks, stone floats, or other such defects.
(b) When immersed in water for 24 hours, a brick shall not absorb more water than 20% of its dry
weight. All bricks shall be identical / equal to samples submitted and approved by Engineer-in-
charge before the commencement of the work. Crushing strength of the class bricks shall not be
less than 75kg. / cm2. Metallic sound of brick is also a criteria for the above class and quality.
ii. Sand
IS gradation of sand for masonry and plastering work should be as follows:
The sand shall be well graded so as to impart good workability and good finishing. The gradation
requirement of sand shall be as follows:
1. Sand for masonry work( As per IS 2116)
Sl.
No.
IS Sieve size Percentage of passing by weight
1. 4.785 mm 100
2. 2.36 mm 90-100
3. 1.18 mm 70-100
4. 600 microns 40-100
5. 300 microns 5-70
6. 150 microns 0-15
2. Sand for Plastering (As per IS 1542)
Sl.
No.
IS Sieve size Percentage of passing by weight
1. 10 mm 100
2. 4.75 mm 95-100
3. 2.36 mm 95-100
4. 1.18 mm 90-100
5. 600 microns 80-100
6. 300 microns 20-65
7. 150 microns 0-50
iii. Cement: As described under clause 1.3.2 of technical specification
iv. Additives :
Additives, like integral water proofing compounds, shall be of the approved type from
reputed manufacturers. These shall be used strictly in accordance with the manufacture‟s
instructions/ specifications. The additives shall confirm to IS 9103.
1.5.2 Samples:
When demanded by engineer-in-charge, the contractor shall produce samples of materials /
carryout samples of work for Engineer-in-charge. All materials used as also works carried out
shall conform to the quality of approved samples Production of these samples shall be at
contractors cost.
1.5.3 Brick masonry:
Brick shall be soaked in clear water for at least six hours in a vat before use. The average
water absorption of brick after immersion in water shall not be more than 20 % by weight.
Bricks shall be laid in English bond unless specified otherwise. No half or quarter brick shall
be used except as closures. Bricks shall be accurately raised to plumb.
Brick work shall be raised uniform all round and no part shall be raised more than 1 meter
above another at any time. And the work shall be properly toothed and racked back.
In case of 12.5 cm thick brick walls, hoop iron reinforcement 25mm x 12 to 16 gauge or wire
netting reinforcement shall be provided in every fourth course. The reinforcement shall be
properly bedded in mortar, properly lagged etc. all as directed.
The contractor will have to build in holdfast and such other fittings in brick work without extra
cost.
Joints in brick work shall not be more than 10 mm thick. Brick work shall not be raised more
than 10 to 12 courses a day. The work shall be kept watered thrice a day for 10 days and
afterwards twice a day for 3 weeks. All joints shall be thoroughly flushed with mortar at every
course. Care shall be taken to see that bricks are properly bedded and all vertical joints
completely filled to the full depth. The joining of brick work shall be hauled out to a depth not
less than 10 mm as the work proceeds. The surface of brick work shall be cleaned down and
watered properly before the mortar sets.
Construction joints are to be provided at an interval of 30m in case of boundary wall or where
the length of brick wall is long.
The contractor shall also make or leave holes recesses as required and fill in the same at a
later date with lean concrete of m.5 as directed with no extra cost.
“FALG” bricks of proper size & quality as approved by engineer-in-charge can be used in
walls in place of clay bricks. Hollow concrete blocks of approved size, strength& quality can
also be allowed to be used in masonry as approved by engineer-in-charge at site in place of
clay bricks.
1.5.4 Measurements:
i. General
All the rates quoted by the contactor shall be for a fully finished item of work and shall include for all
material, labour, miscellaneous works like storage, loading / unloading, scaffolding, hoisting gear
etc. and also all taxes, duties, overhead, profits, etc.
ii. Masonry
Accounts on masonry shall be settled on the basis of cubic meters or square meters as indicated in
the bill of quantities. Quantities will be decided on the basis of pertinent plants. Openings and
recesses which exceeds 0.10 cum will be deducted from the quantities. Openings left initially on
specific instructions or as required shall be closed at a later date, if so instructed by Engineer-in-
charge, at no extra cost. Similarly, all openings, recesses, grooves etc, shall be provided at no extra
cost. All materials supplied by clients shall be fixed in masonry free of charge.
1.6 Wood work and joinery:
1.6.1 Timber:
i. Unless otherwise specified all timber for frames of door, windows & ventilators should be
best quality sal wood. The timber should be free from knots, shakes, fissure, flaws, sub-
cracks & other defects. The surface shall be smooth & free from blemishes & discolorations.
ii. All timber for carpentry and joinery in touch with masonry or concrete shall be painted with
wood preservative before fixing.
iii. All fully fabricated timber shall be seasoned and chemically treated. The preparation of
timber for joinery is to commence simultaneously with the beginning of the project work
generally and should proceed continuously until all the wood work is prepared and fixed /
stacked on/ near the site as the case may be.
1.6.2 Workmanship and Construction:
a) The workmanship shall be first class and to the approval of the Engineer-in-charge.
Scantling and boardings shall be accurately sawn and shall be of required width and
thickness. All carpenters work shall be wrought except where other wise described. The
workmanship and joinery shall be accurately set out in strict accordance with the drawing
and shall be framed together and securely fixed in approved manner and with properly
made joints. All work is to be properly made joints. All work is to be properly tenoned,
shouldered wedged, pinned, braded etc. and properly glued with approved quality
adhesive to the satisfaction of the Engineer-in-charge. Door / window frames shall have
cut rebates. Planted rebated shall not be permitted. Where door frames are fixed flush
with plaster to walls, wooden cover mould of 40mm x 12 mm to be provided.
b) Doors, windows Frames :
c) The specification for frames of doors, windows, ventilators and clear story windows are
described here. The frames shall wrought, framed and fixed in position as per detailed
drawing and as directed by the engineer in charge. Specified timber shall be used, and it
shall be sawn in the direction of the grains. Sawing shall be truly straight and square. The
scanting shall be planed smooth and accurate to the full dimensions, rebates, rounding
and mouldings as shown in the drawings made, before assembling. Patching or plugging
of any kind shall not be permitted except as provided. A tolerance of 2 / 3 mm shall be
allowed in the finished cross section dimensions of door and windows frames.
d) Joints :
e) These shall be of mortise and tenon type, simple, neat and strong. Mortise and tenon
joints shall fit in fully and accurately with out wedging or filling. The joints shall be glued,
framed, put together and planned with hard wood or bamboo pins not less than 10 mm
diameter after the frames are put together in position by means of a press.
f) Glueing of joints :
g) The contact surface of tenon and mortise joints shall be treated before putting together
with synthetic resin adhesive of make, approved by the engineer.
h) Fixing in Position :
i) Before the frames are fixed in position, these shall be inspected and passed by the
engineer. The frame shall be placed in proper position and secured to walls or columns as
the case maybe with metallic fastener, iron hold fasts as per direction of the Engineer-in-
charge.
j) Incase of door frames without sills the vertical members shall be embedded in the flooring
to its full depth. When sills are provided,. these sills shall be embedded and sunk in the
floor to its full depth. The door frames without sills while being placed in position, shall be
suitably strutted and wedged in order to prevent warping during construction. the frames
shall also be protected from damage, during construction.
1.6.4 Measurement:
Wood work wrought and framed shall be measured for finished dimensions. No allowance shall be
made for wastage and for dimensions supplied beyond those specified. Length of each peace shall be
measured over all nearest to one cm, so as to include projections for tenons, scarps or meters, width or
thickness shall be measured to the nearest mm.
In case of moldings, rounding, rebates, circular and varying section, the sectional area of the piece shall
be taken as the area of the least square of the rectangle from which such a section can be cut.
Rate:
The rate is to include the cost of all materials required and labour involved in all the operations,
described above.
1.6.5 Paneled Shutter:
a) General :
Solid wood panel for shutters shall be pattered and sized as specified. Where ever possible each
panel shall be in a single width piece. But where two pieces were used, width of each panel should
not be less than 12.5 cm. When made from more than one piece, the pieces shall be jointed with a
continuous tongued and grooved joint and glued together and a reinforced with metal dowels. The
grains of solid panel shall be framed in to grooves to the full depth of the grooves leaving in air
space of 1.5 mm and the faces shall be closely fitted to the sides of the grooves. Moldings to the
edge of panel opening shall be scribed at the joints. Approved sample should be kept at the site
office as per direction of engineer.
b) Joinery work:
Joinery work shall be started immediately, after the commencement of the buildings work. All pieces
shall be accurately cut and planed smooth to the full dimensions without any patching or plugging of
any kind. Rebates rounding and moldings as shown in drawings shall be made before assembling.
The thickness of styles and rails shall be as specified for the shutters. All members of the door
shutters shall be straight without any warp or bow and shall have smooth, well planed faces at right
angles to each other. The corners and edges of planed faces should be at right angles to each
other. The corners and edges of panels shall be finished as shown in drawings, and these shall
have mitered joints with the styles. Styles and rails shall be properly and accurately mortised and
tenoned. Rails which are more than 180 mm in width shall have two tenons. Styles and end rails of
shutters shall be made out of one piece only. The tenons shall pass through styles of at least 3/4th
of the width of the style. When assembling a leaf, styles shall be left projecting as a horn. The styles
and rails shall have 12 mm grove in paneled portion for the panel to fit in.
The depth of rebate in frames for hosing the shutters shall in all cases be 1.25 mm and the rebate in
shutters for closing in double shutter doors or windows shall not be less than 2 cm in the case of
double leafed shutters, the meeting of the styles shall be rebated 20 mm. The rebate shall be
splayed.
The joinery work shall be assembled and passed by the Engineer-in-charge and then the joints shall
be pressed, and secured by bamboo pins of about 6 mm diameter. The horns of styles shall be
sawn off.
c) Tolerance:
The finished work with a tolerance of + 1 mm in thickness + 2/3 mm in width of styles and rails shall
be accepted.
d) Grounding of joints:
The contact surface of tenon and mortis joints shall be treated before putting together with bulk type
synthetic resin adhesive of a make approved by the Engineer. Shutters shall not be painted, oiled or
otherwise treated, before these are fixed in position and passed by the Engineer-in-charge.
Mountings and glazing bars shall be stationed to the maximum depth of 25 mm, whichever is less.
Thickness of each tenon shall be approximately one third the finished thickness of the members
and the width of each tenon shall not exceed five times its thickness.
e) Beading:
Timber, plywood, hard board and particle board panels, shall be fixed only width grooves but
additional beading may not be provided either on one side or on both sides. In so far as glass is
concerned, beading shall always be provided without grooves. Where beading is provided without
grooves, the beading shall be only one side, the other side being supported by rebate from the
styles. For external doors and windows beading shall be fixed on the outside.
f) Fittings:
Details of fittings to be provided as per the schedule of fittings.
1.6.6 Measurements:
Length and width of the shutters shall be measured to the nearest cm in closed position covering
the rebates of the frame but excluding the gap between the shutter and the frame. Overlap of two
shutters shall not be measured. All work shall be measured net as fixed.
No extra payment shall be made for shape joints etc.
1.6.7 Rate:
It includes the cost of all materials and labour involved in all the operations described above.
1.6.8 PVC Door Frame:
PVC Door Frame shall be made out of PVC section in an overall size of 40 mm x 58 mm having
multi chamber cross section with a minimum wall thickness of 2.5 mm + 0.3 mm to miter cut at the
corner and welded. The frame shall be reinforced with steel or other appropriate materials as per
requirement.
1.7 CEMENT PLASTERING (Internal & External):
The cement plaster shall be 8 mm, 12mm or 20mm or any thickness as specified in the item.
i. Scaffolding:
For all exposed brick work or tile work, double scaffolding having two sets of vertical supports shall
be provided. The supports shall be sound and strong, tied together with horizontal pieces over
which scaffolding planks shall be fixed. For all other brick work in buildings, single scaffolding shall
be permitted. In such cases the inner end of the horizontal scaffolding pole shall rest in a hole
provided only in the header course for the purpose. Only one header for each pole shall be left out.
Such holes for scaffolding shall, however, not be allowed in pillars / columns less than one meter
width or immediately near the skew portion of arches. The holes left in masonry works for
scaffolding purposes shall be filled with lean concrete and made good before plastering.
ii. Preparation of surface:
The joints shall be raked out properly. Dust and loose mortar shall be brushed out. Efflorescence if
any shall be removed by brushing and scarping. The surface shall then the thoroughly washed with
water, cleaned and kept wet before plastering is commenced.
In case of concrete surface if a chemical retarder has been applied to the formwork, the surface
shall be roughened by wire brushing and all the resulting dust and loose particles cleaned off and
care shall be taken that none of the retarders is left on the surface.
iii. Application of Plaster:
Ceiling plaster shall be completed before commencement of wall plaster.
Plastering shall be started from the top and worked down towards the floor. All scaffolding pole
holes shall be properly filled in advance of plastering as the scaffolding is being taken down. To
ensure even thickness and true surface, plaster about 15 cm x 15 cm shall be first applied,
horizontally and vertically at not more than 2m. intervals over the entire surface to serve as gauges.
The surfaces of these gauged areas shall be truly on the plane of the finished plaster surface. The
mortar shall then be laid on the wall, between the gauges with trowel. The mortar shall be applied in
a uniform surface slightly more than the specified thickness. This shall be beaten with thin strips of
bamboo about 1 meter long to ensure thorough filling of the joints, and then brought to a true
surface, by working a wooden straight edge reaching across the gauges, with small upward and
side ways movements at a time. Primarily the surface shall be finished off true with trowel or
wooden float according as a smooth or a sandy granular texture is required. Excessive trowel in or
over working the float shall be avoided. During this process, a solution of like putty shall be applied
on the surface to make the later workable.
All corners, angles and junctions shall be truly vertical or horizontal as the case may be and shall be
carefully finished. Rounding or chamfering corners, junctions etc. where required shall be done with
out any extra payment. Such rounding or chamfering shall be carried out with proper templates to
the sizes required.
In suspending work at the end of the day, the plasters shall be left out clean to line both horizontally
and vertically, when recommencing the plastering, the edge of the old work shall be scraped
cleaned and wetted with lime putty before plaster is applied to the adjacent areas, to enable the two
to properly joint together. Plastering work shall be closed at the end of the day on the body of wall
and not nearer than 15 cm to any corners. Its shall not be closed on the body of the features such
as plasters bands and cornices nor at the corners. Horizontal joints in plasterwork shall not also
occur on the parapet tops and copings as these invariable lead to leakage.
No portion of the surface shall be left out initially to be patched up later on.
Finish:
The plaster shall be finished to a true and plumb surface and to the proper degree of
smoothness as required. The works shall be tested frequently as the work proceeds with a true
straight edge not less than 2.5.m long and with plumb bobs. All horizontal lines and surfaces
shall be tested with a level and all jambs with a plumb bob as the work proceeds.
iv. Thickness:
The thickness of the plaster specified shall be measured exclusive of the thickness of the key
i.e. grooves or open joints in brickwork. The average thickness of plaster shall not be less than
the specified thickness. The minimum thickness of any portion of the surface shall not be less
than the specified thickness by more than 3mm. The average thickness should be regulated at
the time of plastering by keeping suitable thickness of the gauges. Extra thickness required in
dubbing behind rounding of corners at junctions of wall or in plastering of masonry cornices etc.
will be ignored.
Curing shall be started 24 hrs after finishing the plaster. The plaster shall be kept wet for a
period of 7 days. During this period it shall be suitably protected from all damages at the
contractor‟s expense by such means as the engineer may approve. The dates on which
plastering is done shall be legibly marked on the various section plastered so that curing for the
specified period thereafter can be watched.
Any cracks which appear in the surface and all portions, which sounds hollow when tapped or
are found to be soft or other wise defective, shall be cut out in rectangular shape and re done as
directed by the Engineer-in-charge.
1.8 CEMENT PLASTER WITH A FLOATING COAT OF NEAT CEMENT:
The cement plaster shall be 8mm, 12mm or 20mm 16 mm thick, finished with a floating coat of
neat cement, as described in the item.
When the plaster has been brought to a true surface with the wooden straight edge, It shall be
uniformly treated over its entire area with a paste of neat cement and rubbed smooth, so that
the whole surface is covered with neat cement slurry 1.5mm thick while the plaster surface is
still fresh. Smooth finishing shall be completed with trowel immediately and in no case later than
half an hour adding water to the plaster mix.
1.9 CEMENT CONCRETE FLOORING:
1.9.1 Cement Concrete:
i. General:
Cement concrete of specified mix shall be used and it shall generally conform to the
specifications described in plain concrete.
ii. Sub-Grade:
Flooring shall be laid on concrete sub-grade where so provided. The sub-grade shall be
provided with the slopes required for the flooring. Flooring in verandas, , baths, water closets
and courtyards shall invariably be provided with suitable slope to drain off washing and rain
water.
If the sub-grade consist of concrete, it shall be allowed to set for 7 days and the flooring shall be
laid in the next 3 days.
If the sub-grade is of lean cement concrete, the flooring shall be commenced preferably within
48 hrs of the laying of sub-grade. The surface of the sub-grade shall be roughened with steel
wire brushes without disturbing the concrete. Before laying the flooring the sub-grade shall be
wetted and smeared with a coat of cement slurry at 2 Kg. of cement spread over an area of 1
m2 so as to get a good bond between the sub-grade and concrete floor.
If the cement concrete flooring is to be laid directly on the RCC slab, the surface of RCC slab
shall be cleaned and the laitance shall be removed and a coat of cement slurry at 2 kg of
cement per sqm shall be applied so as to get a good bond between RCC slab and concrete
floor.
Thickness of floor shall be as specified in the description of the item.
iii. Laying:
Panels:
Flooring of specified thickness shall be laid in the pattern as given in the drawings or as directed
by the engineer. The border shall have metered joints at the corners of the rooms and
intermediate joints shall be in the straight line with the panels. The panel shall be of uniform
size.
The panel shall be bounded by wooden angle iron battens. The battens shall have the same
depth as the concrete flooring. These shall be fixed in position, with their top at proper level,
giving required slopes. The surface of the batten or flats, to come in contract with the concrete
shall be smeared with soap solution or non-sticking oil (form oil or raw linseed oil) before
concreting. The floorings shall butt against the masonry wall, which shall not be plastered.
The concreting shall be done in the manner described in plane cement concrete. The battens
used for shuttering, shall be removed on the next day of the laying of cement concrete. The
ends thus exposed shall be repaired, if damaged, with cement mortar 1:2 ( 1 cement 2 coarse
sand) and allowed to set for minimum period of 24 hour the alternate panels shall then be
cleaned of dust, mortar droppings etc. and concrete laid. While laying concrete, care shall be
taken to see that the edges of the previously laid panels are not damaged and fresh mortar is
not splashed over them. The joints between the panels should come out as fine and straight
lines.
iv. Finishing:
The finishing of the surface shall follow immediately after the occasion of beating. The surface
shall be left for some time, till moisture disappears from it. Excessive trawlingshall be avoided.
Use of dry cement or cement and sand mixture sprinkle on the surface to stiffen the concrete or
absorb excessive moisture shall not be permitted.
Fresh quantity of cement shall be mixed with water to form a thick slurry and spread over of
flooring while the concrete is still green. The cement slurry shall then be properly pressed and
finished smooth.
v. Curing:
The curing shall be done for a minimum period of 10 (ten) days. Curing shall not be commenced
until the top layer has hardened. Covering with empty cement gunnies shall be avoided as the
color is likely to be bleached with the remnants of cement matter from the bags.
vi. Precautions :
Flooring in lavatories and bath rooms shall be laid after fixing of water closets and squatting
pans and flooring traps. Traps shall be plugged, while laying the floors and opened after the
floors are cured and cleaned. Any damage done to S.C.‟s squatting pans and floor traps during
the execution of work shall be made good.
The floor shall be protected from any damage during the execution of work.
vii. Measurements:
Length and breadth shall be measured correct to a cm and its area as laid shall be calculated in
sqm correct to two places of decimal. Length and breadth shall be measured before laying
skirting dado or wall plaster. No deduction shall be made nor any extra paid for any opening in
the floor of area up to 0.10 m2.
viii. Rate:
The rate shall include the cost of all materials and labour involved in the operations described
above including application of cement slurry on RCC and or on sub-grade including roughening
and cleaning the surface. Nothing extra shall be paid for laying the floor at different levels in the
same room or count yard and rounding of edges of sunk floors.
In case the flooring is laid in alternate panels, it includes the cost of shuttering.
1.9.2 a. Glazed ceramic tile flooring
b. Glazed ceramic tile fixing:
6 mm thick glazed ceramic tiles of approved size and colour upto 2100 mm height from floor
level of approved make confirming to IS : in Dado /Skirting in toilets. Ground Floor fixed in neat
cement slurry after soaking the tiles in water over 12 mm thick cement plaster (1:3) with white
cement pointing in joints, including washing and cleaning with oxalic acid etc. complete.
1.9.3 Kota stone flooring
Kota stone flooring with 25 mm thick kota stone dressed and polished tiles bottom coated with
neat cement slurry and fixing in flooring on 25 mm thick bed of cement mortar (1.3) mix and
joints filled with grey cement slurry, properly leveled, washed, acid cleaned and polished.
1.10 WHITE WASHING
i. Materials:
White wash shall be prepared from 5 parts of stone lime and 1` part of shell lime . The lime shall
be dissolved in a tub with sufficient quantity of water ( about 4/5 liters / kg.) lime and the shole
thoroughly mixed and stirred until it attains the consistency of thin cream. The wash shall be
taken out in small quantities and strained through a clean course cloth. Clean gum dissolved in
hot water shall then be added in suitable proportion of 2 kg. Per m3. Of lime to prevent the white
wash coming of easily when rubbed. Indigo as necessary shall be mixed as per standard
practice and as per the direction of Engineer-in-charge.
Preparation of Surface.
The surface shall be prepared removing all mortar droppings and foreign matter and thoroughly-
cleaned with hair or fiber brush or other mean as may be ordered by the Engineer-in-charge to
produce an approved clean and an even surface. All loose pieces and scales shall be scrapped
off and holes racks etc. stopped with mortar to match with the surrounding finish. The matter
should be cured sufficiently.
ii. Application of white wash:
On the surface so prepared, the white wash shall be laid on with a brush, shall be from top
downwards, another from bottom upwards over the first stroke and similarly one stroke from the
right and another from the left over the first brush before it dries. This will form one coat. Each
coat must be allowed to dry and shall be subject to inspection and approval before the next coat
is applied. When dry, the surface shall show no signs of cracking. It shall present a smooth and
uniform finish free from brush marks and it should not come off easily when rubbed with a
finger, minimum 3 coats of white wash shall be applied or as directed by the Engineer-in-
charge.
No portions in the surface shall be left out initially, to be patched up later on.
For new work, the white washed surface shall present a smooth and uniform finish. Doors,
windows, floors and other articles of furniture etc. shall be protected from being splashed upon.
Splashing and droppings, if any, shall be removed and the surfaces cleaned. Apart from other
factors, mentioned else where in this contract, the rates for white wash shall include for the
following:
a) All labour, materials, equipment required for white washing.
b) Scaffolding including erection and removal.
c) Providing and preparing the white wash
d) Preparing the surface for white wash including the scaffolding.
e) Applying the white wash in three coats minimum if a proper even surface is not obtained to
the satisfaction of the Engineer-in-charge, contractor shall carry out additional coats of white
wash till approval, at contractor‟s expense.
1.11 Weather Coat Cement Paint
i. Materials:
Weather coat cement paint of approved brand and manufacturer shall be used. The primer
where used as on new work shall be cement primer suitable for weather coat painting as
described in the item. These shall be of the same manufacturer as cement paint. The paint shall
be diluted with water or any other prescribed thinner in a manner recommended by the
manufacturer. Only sufficient quantity o paint required for day‟s work shall be prepared.
The paint and primer shall be brought by the contractor in sealed tins in sufficient quantities at a
time to suffice for a fortnight‟s work, and the same shall be kept in the joint custody of the
contractor and the Engineer-in-charge. The empty tins shall not be removed from the site of work,
till this item of work has been completed and passed by the Engineer-in-charge.
ii. Preparation of the Surface:
For new work the surface shall be thoroughly cleaned of dust, old white or colour wash by
washing and scrubbing. The surface shall then be allowed to dry for at least 48 hours. It shall then
be sand papered to give a smooth and even surface. An unevenness shall be made good by
applying putty, made of plaster of paris mixed with water on the entire surface including filling up
the undulation and then sand papering the same after it is dry.
Pitting in plaster shall be made good with plaster of paris mixed with the colour to be used. The
surface shall then be rubbed down again with a fine grade sand paper and made smooth. A coat
of the distemper shall be applied over the patches. The patched surface shall be allowed to dry
thoroughly before the regular coat of distemper is applied.
iii. Application:
a) Primer Coat –
The Primer coat shall be cement primer, as required in the description of the item.
Note:
If the wall surface plaster has not dried completely cement primer shall be applied before
painting the walls.
For new work, after the primer coat has dried for at least 48 hours, the surface shall be lightly
sand papered to make it smooth for receiving the distemper, taking care not to rub out the
priming coat. All loose particles shall be dusted off after rubbing. One coat of distemper properly
diluted with thinner.
water or other liquid (as stipulated by the manufacturer) shall be applied with brush in horizontal
stokes followed immediately by vertical ones which together constitute one coat.
The subsequent coats shall be applied in the same way. Two or more coats ofweather coat paint
as are found necessary shall be applied over the primer coat to obtain an even shade.
A time interval of at least 24 hours shall be allowed between consecutive coats to permit of the
proper drying of the proceeding coat.
15 cm. Double bristled distemper brushes shall be used. After each day‟s work, brushes shall be
thoroughly washed in hot water with soap solution and hung down to dry. Old brushes, which are
dirty and caked with distemper shall not be used on the work.
1.12 CEMENT PRIMER:
1.12.1 General
Cement primer coat is used as a base coat on wall finish of cement, lime or lime cement plaster
surface before oil emulsion distemper paints are applied on them. The cement primer is
composed of a medium and pigment which are resistant to the alkalis present in the cement,
lime or lime cement in well finish and provides a barrier for the protection of subsequent coats of
oil distemper paints.
Primer coat shall be preferably applied by brushing and not by spraying. Hurried priming shall
be avoided particularly on absorbent surface. New plaster patches.
1.12.2 Preparation of the Surface:
The surface shall be thoroughly cleaned of dust, old white or colour wash by washing and
scrubbing. The surface shall then be sand papered to give a smooth and even surface. Any
unevenness shall be made good by applying putty, made of plaster of parties mixed with water
on the entire surface including filling up the undulation and then sand papering the same after it
is dry.
Application:
The cement primer shall be applied with a brush on the clean dry and smooth surface.
Horizontal strokes shall be given first and vertical strokes shall be applied immediately after
wards. This entire operation will constitute on coast. The surface shall be finished as uniformly
as possible leaving no brush marks. It shall be allowed for at least 48 hours, before oil emulsion
paint is applied.
1.13 CEMENT PAINT:
i. Materials:
The cement paint shall be (conforming to IS: 5400) of approved brand and manufacture.
ii. Preparation of Surface:
For new work, the surface shall be thoroughly cleaned of all mortar dropping, dirt, dust, leaned
of all dirt, dust, algae, oil etc. by brushing and washing. Pitting in plaster shall be made good
and a coat of waterproof cement paint shall be applied over patches after wetting them
thoroughly.
iii. Preparation of Mix:
weather coat paint shall be mixed in such quantities as can be used up within an hour of its
mixing as other wise the mixture will set and thicken, affecting flow and finish.
Weather coat paint shall be mixed with water in two stages. The first stage shall comprise of 2
parts of cement paint and one part of water stirred thoroughly and allowed to stand for 5 minutes.
Care shall be taken to add the cement paint gradually to the water and not vice versa. The second
stage shall comprise of adding further one part of water to the mix and stirring thoroughly to obtain
a liquid of workable and uniform consistency. In all cases the manufacturers instructions shall be
followed meticulously.
The lids of cement paint drums shall be kept tightly closed when not in use, as by exposure to
atmosphere the cement paint rapidly becomes air set due to its hydroscopic quality.
Iv. Application:
The solution shall be applied on the clean and wetted surface with brushes or spraying machine.
The solution shall be kept well stirred during the period of application. It shallbe applied on the
surface, which is on the shady side of the building so that the direct heat of the sun on the surface
is avoided. The method of application of cement paint shall be as per manufactures specification.
The completed surface shall be watered after the day‟s work.
The second coat shall be applied after the first coat has been set for at least 24 hours. Before
application of the second or subsequent coats, the surface of the previous coat shall not be
wetted.
For new work, the surface shall be treated with three or more coats of waterproof cement paint as
found necessary to get a uniform shade.
Water cement paint shall not be applied on surface already treated with white wash, colour wash,
distemper dry or oil bound, varnishes, paints etc. It shall not be applied on gypsum, wood and
metal surface.
Weather Coat Cement Painting to outside walls
1.14 PAINTING
i. Materials:
Paints, oil, varnishes etc. of approved brand and manufacturer shall be used ready mixed paint as
received from the manufacturer without any admixture shall be used.
If for any reason thinning is necessary in case of ready mixed paint, the brand of thinner
recommended by the manufacturer or as instructed by the Engineer-in-charge shall be used.
Approved, paints, oil or varnishes shall be brought to the site of work by the Contractor in their
original containers in sealed condition. The material shall be brought in at a time in adequate
quantities to suffice for the whole work or at least a fortnight‟s work. The materials shall be kept in
the joint custody of the contractor and the Engineer-in-charge. The empties shall not be removed
from the site work, till the relevant item of work has been completed and permission obtained from
the Engineer-in-charge.
ii. Commencing Work:
Painting shall not be started until the Engineer-in-charge has inspected the items of work to be
painted, satisfied himself about their proper quality and given his approval to commence the
painting work. Painting of external surface should not be done in adverse weather condition like
hail storm and dust storm.
Painting, except the priming coat, shall generally be taken in hand after practically finishing all
other builder‟s work.
The rooms should be thoroughly swept out and the entire building cleaned up, at least one day in
advance of the paint work being started.
iii. Preparation of Surface:
The surface shall be thoroughly cleaned and dusted. All rust, dirt scales, smoke and grease
shall be thoroughly removed before painting is started. The prepared surface shall have
received the approval of the Engineer-in-charge after inspection, before painting is commenced.
iv. Application:
Before pouring into small containers for use, the paint shall be thoroughly in its containers,
when applying also the paint shall be continuously stirred in the smaller containers so that its
consistency is kept uniform.
The painting shall be laid on evenly and smoothly by means of crossing and laying off, the later
in the direction of the grain of wood. The crossing and laying off consists of covering the area
over with paint, brushing the surface hard for the first time cover and then brushing alternately in
opposite direction, two or three times and then finally brushing lightly in a direction at right
angles to the same. In this process, no brush mark shall be left after the laying off is finished.
The full process of crossing and laying off with constitute one coat.
The left over paint shall be put back into the stock tins. When not in use, the containers shall be
kept properly closed.
No hair marks from the brush or clogging of paint putties in the corners of panels, angles of
mouldings etc. shall be left on the work.
In painting doors and windows, the putty round the glass panes must also be painted, but care
must be taken to see that no paint stains etc. are left on the glass. Tops of shutters and
surfaces in similar hidden locations shall not be left out in painting.
In painting steel work, special care shall be taken while painting over bolts, nuts, rivets, overlaps
etc.
The additional specifications for primer and other coats of paints shall be as according to the
detailed specifications under the respective headings.
Brush and Containers:
After work, the brushes shall be completely cleaned of paint and linsed oil by rinsing with
turpentine. A brush in which paint has dried up in ruined and shall on no account be used for
painting work. The containers when not in use shall be kept closed and free from air so that
paint does not thicken and also shall be kept safe from dust. When thepaint has been used, the
containers shall be washed with turpentine and wiped dry with soft clean cloth. So that they are
clean, and can be used again.
v. Measurements:
The length and breadth shall be measured correct to a cm. The area shall be calculated in sq.
meters (correct to two places of decimal), except otherwise stated, small articles not exceeding
10 sq. decimeters (0.1 Sqm.) of painted surfaces where not in conjunction with similar painted
work shall be enumerated.
Painting up to15 cm in width or in girth and not in conjunction with similar painted work shall be
given in running meters.
1.15 Priming coat on wood, Iron, or plastered surface:
1.15.1 Primer:
The primer for woodwork, ironwork or plastered surface shall be as specified in the description
of the item.
The primer shall be ready mixed primer of approved brand and manufacturer.
i. Preparation of surface.
a) Wooden Surface:
The woodwork to be painted shall be dry and free from moisture.
The surface shall be thoroughly cleaned. All unevenness shall be rubbed down smooth with
sand paper and shall be well dusted Knot, if any shall be covered with preparation of red lead
made by grinding red lead in water and mixing with strong glue sized and used hot. Appropriate
filler material with same shade as paint shall be used where specified.
The surface treated for knotting shall be dry before painting is applied. After the priming coat is
applied the holes and indention on the surface shall be stopped with glazier putty or wood putty
respectively. Stopping shall be not done before the priming coat is applied as the wood will
absorb the oil in the stopping and the later is therefore liable to crack.
All rust and scales shall be removed by scraping with steel wire brushes. Hard skin of oxide
formed on the surface of wrought iron during rolling which becomes loose by rusting, shall be
removed.
All dust and dirt shall be thoroughly wiped away from the surface.
If the surface is wet, it shall be dried before priming coat is undertaken.
b) Plastered Surface:
The surface shall ordinarily not be painted until it has dried completely. Trial patches of primer
shall be laid at intervals and where drying is satisfactorily completed, painting shall then be
taken in hand. Before primer is applied, holes and undulations, shall be filled up with plaster of
paris and rubbed smooth.
ii. Applications:
The primer shall be applied with brushes, worked well into the surface and spread even and
smooth. The painting shall be done by crossing and lying off as described in painting.
All other specifications described under painting shall hold good so far as they are applicable.
1.16 Painting with ready mixed paint:
Ready mixed paints of approved brand and manufacture and of the required shades shall be
used. They shall conform in all respects to the relevant IS specifications.
1.16.1 Painting of New Surface:
a) Wood Work – The surface shall be cleaned and all unevenness removed as specified in
priming coat on wood, iron & plastered surface, knots if visible, shall be covered with a
preparation of red lead. Holes and indentations on the surface shall be filled in with glazier
putty or wood putty and rubbed smooth before painting is done. The surface should
thoroughly be dry painting.
b) Iron and Steel work – The priming coat shall have dried up completely before painting is
started. Rust and scaling shall be carefully removed by scraping or by brushing with still
wire brushes. All dust and dirt shall be carefully and thoroughly wiped away.
c) Plastered Surface- The priming coat shall dried up completely before painting is started.
All dust and dirt that has settled on the priming coat shall be thoroughly wiped away
before painting is started.
The specifications described in painting shall hold good as far as applicable. The number of
coats to be applied will be as stipulated in the item. The painted surface shall present a uniform
appearance and glossy finish, free from streaks, blisters etc.
i. Preparation of surface:
Painting shall be done only when the surface is perfectly dry to permit of good absorption. All
dirt, dist or other foreign matter shall be removed from the surface to be painted. All roughness
shall be sand papered and cleaned.
ii. Application:
The preservative shall be applied liberally with a stout brush and not daubed with rags of cotton
waste. It shall be applied with a pencil brush at the joints of the wood work. The first coat shall
be allowed at least 24 hours to soak in before the second (the final) coat is applied. The second
coat shall be applied in the same manner as the first coat. The excess of preservative, which
does not soak into the wood, shall be wiped off with a clean dry piece of cloth.
1.17 Water Proofing:
Chemical Waterproofing treatment on R.C.C Roof ( IS: 9103-1999)
General :- A selective product for making a cement based polymer modified water proofing slurry walling is applied to concrete and mortar surface to prevent water in filtration and as well as dampness.
Uses : It is used for external & chemical water proofing, hairline cracks sealing and protection from the chloride in structure as under.
(a ) Terrace and Balconies (b) Water tanks.
Coverage: Two coats are required. The compound will require 0.8kg/m for two coats. In extreme case 3 coats may required.
Instruction for use:
(a) Surface preparation: Concrete, mortar or masonry surface must be clean and made free from
grease, oil , mud and loosly adhering particles. All surfaces must be on true flat as far as
possible. Surface preparation is essential to achieve high adhere quality.
(b) Mixing : A pre-batched mixture of good quality cement with clean find sand (500micros) should
be prepared with cement & sand in equal proportion by weight. This shall be mixed with polymer
complex in proportion of one part of polymer to four parts of cement sand mixture to form a
slurry. For consistency, the proportion of polymer should be adhered. Mixing shall be done in a
clear container by slowly adding the ponder component to polymer and stirring with a slow
spared mixer. Mixing should be done until the slurry is free from lumps.
(c) Application : Dampen the surface immediately ahead of slurry application, while the surface is
still damp, apply the first coat and leave to harden for 6-12 hours. For slurry consistency apply
with a hard plastic bristled brush and broom. After the second coat has been applied, finish by
rubbing down with a soft dry sponge. For water proofing, slurry should be applied to the rate of
3-4 kg/m for two coats depending on smoothness or roughness of surface.
(d) Curing: Protect the freshly applied slurry against fire or sunlight and strong wind. Use damp
Hessian to aid curing for 3 days.
(e) Grading over the polymer base: Do not leave materials to Hessian before cleaning tools and
equivalent with wall. Left over materials can be removed mechanically. After application of 2
coats or polymer mix with a sand and cement apply a coat of grading plaster with average
thickness of 20mm using mortar 1:4 using 2% compound of approved make and quality in a
continuous manner to protect the water proofing layer.
2. TECHNICAL SPECIFICATION FOR SANITARY & PLUMBING WORKS
2.1 Sanitary Ware & Allied Fittings:
2.1.1 General:
All sanitary fixtures and their allied fittings should be of best quality, manufactured by reputed
manufacturer . These should be approved by the consultant / Engineer-in-charge before use.
2.1.2 Squatting pattern W.C. pan (Orissa Pattern Closets)
The water closets shall be of vitreous china of specified size and pattern, integral flushing rim. It
shall have the flushing inlet at the back. The Orissa closets should be I.S.I marked of approved
quality conforming to IS –2556.
The squatting type Indian water closets (Orissa Closet) shall be sunk in floor sloped towards the
pan in a workmanship like manner. The closet shall be fixed on a proper cement concrete base of
1:3:6 proportion, taking care that the cushion is uniform and even without closet, to receive the
specified thickness of the floor finishing. The joint between the closet and the PVC. Trap shall be
made with W.C. ring and rubbed lubricant and shall be of leak proof.
2.1.3 Flushing Cistern:
The flushing of the Indian water closet (Orissa closet ) shall be done polystyrene high level valve
less symphonic flushing cistern ( PVC low level cistern) of approved brand and quality I.S.I.
marked and capacity as specified. The connection between the cistern and water closet shall be
made by 32 mm dia G.I. flush pipe, made from G.I. pipe ( Light quality) or 32 mm dia. PVC pipe
as specified in the tender schedule. The flush pipe with an off set should be fixed to wall using C.I.
holder bat clamps. The capacity of the cistern should be 10 ltrs. As per I.S.S. the cistern shall be
fixed on cast iron or rolled steel /PVC cantilever brackets ( built in type) which shall be firmly
embedded screwed in the wall, with C.C. M20. the cistern shall be provided with 20mm dia PVC.
Overflow pipe with fittings which shall terminate into mosquito proof coupling secured in a manner
that will permit it to be readily cleaned or renewed.
2.1.4 WashHandBasin:
The wash hand basin shall be of the white vitreous china of approved quality, make and brand
I.S.I. marked. It shall be one piece construction with an integral combined overflow. The size of
the basin shall be as specified. Each basin shall be provided with one 15 mm dia C.P. Brass pillar
Tap, 32 mm dia C.P. waste C.P. chain and rubber plug, unions, joints, C.P. Bottle trap casted
PVC waste pipe complete in all respects of approved quality.
The basin shall be supported on a pair of R.S. or C.I. cantilever brackets (built in type) and
embedded and fixed in wall with cement concrete, M20. these brackets shall be painted to the
required shade with two coats of synthetic enamel paint over coat of priming. The waste of the
basin shall discharge into a floor trap of channel through bottle traps PVC waste pipe as specified.
One 32 mm dia C.P. bottle trap is to be fixed to the waste of the basin, & the outlet of the bottle
trap is to be connected to the waste pipe to discharge the waste to the aforesaid floor trap. The
inlet connection to the basin shall be made with 450 mm long 15mm dia heavy type P.V.C.
connection pipe.
2.1.5 Standing Urinals:
The urinals shall be flat pattern lipped front basin of required dimension of the white vitreous china
and one piece construction with internal flushing box, rim of an approved make and brand as
specified. It shall be fixed in the position by using wood unplug embedded in the wall with screws
of proper size. Each urinal shall be connected to a 40 mm dia PVC waste pipe which shall
discharge into a channel or floor trap. The lip of urinal shall be kept at 525 mm from floor level,
while fixing the urinal on the wall.
Where no of urinals are fixed in a line, the distance between the center to center of each urinal
shall be kept 750mm and each urinal should be separated from one to other by a partition plate.
The center to center partition plates shall be kept 750 mm.
The partition plates shall be of one piece kota stone plates, cut to size or partition wall and front
corners rounded. The partition parttion plates are embedded in wall with cement concrete and
finished smooth. The bottom of the partition plates should be kept 500 mm above floor level and
top should be kept at 1250 mm above floor level. The plates should project 600mm from wall
surface. The width of the plates should be embedded inside the wall and should not be less than
100 mm. The thickness of the plates shall be minimum of 25 mm to 32 mm. Thickness of partition
wall should be limited to 150 mm including smooth surface finishing.
For flushing the urinals each urinal shall be, connected with one 20 mm dia G.I. Pipe (Midium
class). One end of each of this pipe 15 mm PVC connection pipe shall be inserted into the inlet of
the Urinal and jointed with jute and putty where as the other end is connected either with a tee or
bend with water pipe line fixed on the wall horizontal above the urinals. In each 20 mm dia flush
pipe one 20 mm dia –gun-metal gate valve angle stopcock to the fixed. By opening this valve, the
water will flow to the rims of urinal through the inlet pipe and flush the urinal. After flush, the valve
can be closed to avoid wastage of water. One 40 mm dia P.V.C. waste pipe shall be connected to
the waste of each urinal, to discharge the waste into the channel or trap. One end of this waste
pipe shall be made a cup size to fit into the projected waste and tightened with screws and waste
clamp.
2.1.6 Squatting Urinal Plates:
The urinal plates shall be of white glazed vitreous china with integral flusuing rim of size 450 mm x
350 mm of approved make and brand as specified. There shall be white vitreous channel with
stop and outlet pieces in the front. These plates shall be fixed on C.C. at 75 mm to 100 mm above
floor level.
For flushing arrangement, one 25 mm dia G.I. common water pipeline(minimum s9ze) shall be
fixed on the wall parallel to floor. For each urinal one 20mm dia. G.I. Branch pipe shall be taken
down upto 12mm from floor level just at the center of each plate, in which one 20 mm dia gate
valves is fixed at 1500 mm above floor level. At 1200m height, the 20mm dia flash pipe shall be
divided into two branches with a tee and fixed horizontal. 300mm on either side and then with the
help of elbows, both the branches shall be taken downward and connected to the inlets of the
urinal plates at floor level. By operating the valve as above, the water will rush into the rims of the
urinal plate and flush it.
Where there are number of urinals fixed in a line, each urinal should be separated by a partition
plate fixed in the centre of two urinal plates. The centre to centre distance of the partition places
shall be kept 750mm minimum.
The partition plates shall be of one piece kota stone plate, 25 mm to 52 mm thick, cut to sizes and
front corners rounded. The plates are embedded in wall with cement concrete and finished
smooth. The bottom of the partition plates wall shall be kept flushed to urinal top level, the top
level shall be kept at 1200 mm from the urinal plate top and the projection from the wall shall be
600 mm. the width of the plate to be embedded inside the wall should not be less than 100mm.
2.2 P.V.C. (S.W.R.) AND P.V.C. (Rigid) Pipes and Fittings:
2.2.1 General
The PVC (SWR) and PVC(Rigid), soil waste and vent pipes (spigot and socket, and couples
joints), shall be of make and brand as specified (under specification of materials) confirming to
I.S.S., B.S.S. and DIN are to be used.
The main specification of PVC, soil and waste pipes and fittings are as below.
a) Materials – unplaticised Poly vinyl Chloride (UPVC) b) Color –Grey. c) Dimensions –
i) diameter – fittings – 75mm. 110mm /63 mm and 634mm. ii) Pipes –75mm, 110mm, in lengths of 3 or 6 mtr.
d) Wall thickness - fittings – minimum 3.2 mm at any point Pipes – as per application. For rain water – 75mm – 1.8 to 2.2 mm 110mm – 2.5 to 3 mm Waste and soil :- 75mm – 1.8 to 2.2 mm 110mm – 2.5 to 3 mm Underground drainage with Light / Nil traffics – 110 mm – 2.5 to 3 mm Under ground Drainage with Heavy traffic – 110mm –3.7 to 4.3 mm. e) Standards confirming to attributes Attributes Confirms to standard No. i. fittings and wall thickness - B.S. 4514. DIN 10531 DIN 10532, I.S. 7834 – PVC(Rigid)
ii. Pipe wall thickness I.S. 4985 iii. Rubber ring IS 5382. iv. Fittings Dimensions DIN 19531 I.P.V.C. DIN19534 I (SWR) IS –7834 PVC (Rigid) v. Pipe dimensions IS –4985
2.2.2 Leaving instructions and joint procedure
i. Jointing a PVC (SWR) pipes and fittings.
Clean the outside of the pipes spigot and the inside of the sealing groove of the flitting. Apply the
rubber lubricant, to the spigot end, sealing ring and pass the spigot and into the socket, containing
sealing ring, until fully home. Mark the position of the socket edge with the pencil on the pipe and
then withdraw the pipe from the socket by approx 10 mm towards thermal expansion gap.
ii.Fixing of the pipes and fittings on wall surface :
PVC pipes both (SWR) and (Rigid), fixed on wall surface, are to be supported by PVC pipe clips
specially made for these pipes. With horizontal runs. The pipe clips should be spaced at intervals
of more then 10 times the outside diameter of the pipes. In verticals of one meter to a maximum of
two meters according to pipe diameter or wherever specified.
iii. Jointing of P.V.C. (Rigid) pipe fittings.
Clean the outside of the pipes and inside of the socket of a fitting or the inside of the couplers
(where 2 plain ended pipes are jointed) of. Apply solvent cement solution, evenly and smoothly on
the outer surface of the pipe end and inside surface of either the coupler or the socket and pass
the pipe end into the socket of the fittings, up to the half depth on the end of one pipe and the
outer half of the coupler should be pushed to the end other pipe and thus, both pipes are jointed.
iv. Fixing of P.V.C. pipes & fittings through holes of walls or chaja or roofs etc.
The wall / concrete slots should allow for a stress free installation, pipes and fittings to be inserted
into the slots, without a cement base, have to be applied first with a thin coat of P.V.C. solvent
cement, followed by sprinkling of dry sand (medium size). Allow it to dry. This process gives a
sound base for cement concrete fixation, around the pipes / fittings while mending the damages.
v. Antisyphonage Pipes
All the antisyphonage pipes and fittings to be used are of 63 mm. If these are not available under
the items of P.V.C. (SWR) materials, 63mm pipes and fittings, manufactured under P.V.C.(Rigid)
material can be used, since the raw materials for both is same.
vi. Installation of Traps
All traps should have a minimum water seal of 60mm as per I.S. 5329 AND i.s. 2552(Part – XIII).
Where anti-syphonage connection is required, the traps to be supplied and used should have a 50
mm antisyphonage vent horn on the outlet side. All the traps used with the closets, should be of
the size 125mm x 110mm i.e. inlet (socket end) of 125mm and outlet (spigot end) of 110mm only.
vii. Installation of water closet
Determine the correct location of the P/S trap and set it on a firm base, relative to the floor finish
by pouring concrete around on a slab. Bedding can be endured that the raps outlet is left clear of
concrete. Place the W.C. connector ring to the locketed pipe of 125/110 mm R/S trap. Apply
rubber lubricants on W.C. connector ring as well as outer side of water closet (connection point)
and now complete the joint by pushing the W.C. to home of 125mm socket of the trap.
viii. P.V.C.(Rigid) pipes and Fittings
63mm (O.D.) P.V.C. Pipes to be used for these works either in antisyphonage system or else
where, should be of “Quick Fit” pipes Class 2 (4kg F/cm2), quick Fit. Pipes have one end
socketted.
The P.V.C.(rigid) fittings, such as 63 mm elbow, 63 mm equal tee 110 x 63 mm reducer etc. used
in the work, should be of injection moulded fittings.
ix. One jointing rubber ring will be available, with each P.V.C.(SWR) pipe and fitting and hence,
the cost of the ring will not be added in the joint.
All pipes shall be measured net / length as laid or fixed and shall be measured over all fittings
such as bends junctions traps etc. the length shall be taken along the centerline of the pipes and
fittings. Fittings will be counted extra over.
x. Fore fixing and painting, the pipe shall be tested hydraulically to a pressure 0.4Kg/cm2 for
pipes under I.S. 1729 and at a pressure 0.7 Kg. Cm2 for pipes under I.S. 3989 with out showing
any sign of leakage, sweating of or other defect of any kind. The pressure should be applied
internally and shall be maintained for not less than 15 seconds.
2.3 WATER SUPPLY PIPES AND FITTINGS
2.3.1 Materials
P.V.C pipes of approved quality conforming to IS 1239& bearing ISI Marks,
manufactured by reputed firms and approved brands as specified.
2.3.2 Laying of Pipes.
The layout of the mains and service pipe set etc. will be done in accordance with the
drawings. The contractor is to mark out the exact position of the pipes and fittings at site and take
approval of the consultant / Engineer in –charge, before taking up the work.
Where the pipes are laid, underground these must not be laid less than 450 mm below ground
level and coated with one coat of approved black bituminous paint. For laying the G.I. Pipes and
Fittings below ground level, the width and the depth of the trenches for different dimensions of the
pipes shall be given as below :
Dia of pipe Width of Trench Depth of Trench
15mm to 50 mm 300 mm 600mm
65mm to 100 mm 450mm 750mm
The pipes shall be laid on a layer of 75 mm thick sand and filled up with sand and filled up with
sand up to 75 mm above pipes and the remaining portion of the trench shall then be filled up with
excavated earth with proper ramming as described in “Excavation and refilling “. The surplus earth
shall be disposed of as directed.
Thrust or anchor blocks of cement concrete !:2:4 in hard granite chips shall be constructed on all
`bends or branches to transmit the hydraulic pressure without impairing the ground and spreading
it over a sufficient area. Pipes shall not be laid to pass through manholes, catch pit, drain. Where
it is unavoidable the pipes shall be carried in sleeve pipes of M.S. / G.I. as approved by the
consultant / Engineer-in-charge. The rates should include such a situation.
4. Where pipes run along walls, the same are to be fixed to the wall with holder bat clamps /M.S.
Hooks as below:
Dia of pipe in mm 15 20 25 32 40 50
Horizontal Line 2m 2.5m 2.50m 2.503m 3m 3m
Vertical Line 2.5m 3m 3m 3m 3.5m 3.5m
Where the pipes are passing through the R.C.C. /Masonry wall / Column / beam of Pillars, these
must pass through the appropriate higher sizes of C.I. / G.I. Sleeve Pipes and are to be included
in the rates.
In case the Pipes are embedded in walls and floors it should be painted with one coat of
anticorrosive paint of approved quality.
All pipes should be fixed horizontal and vertical. For taking the pipes through the walls and floors
and roof slabs etc. the holes shall be made by filling with Chisel or jumper and not by dismantling
the brick work of concrete. After fixing, the holes shall be made god with cement concrete 1:2:4
and properly finished with C. Plaster 1:4 to match the adjacent surface.
Union Nuts are to be provided in each of the Vertical riser or drop on and from G.I. Tank and near
the Valve and as and where necessary.
The long screw fittings of 3 Mtrs. For long horizontal lines and inside the lavatory / kitchen etc.,
After laying and jointing the Pipes and fittings shall be inspected under working condition of
pressure and flow. Any joint found leaking pipes should be removed and replaced without extra
cost. The pipes and fittings after they are laid shall be tested to hydraulic pressure of 6 Kg. Cm2.
the test pressure should maintain without loss of for atleast half an hour.
2.3.3 Painting
On completion of the test, the exposed pipes and fittings are to be painted with two coats of
synthetic enamel paint of approved colour and brand over a coat of priming.
Measurement
The length shall be measured in running meter correct to centimeter for the finished work, which
shall include the pipes and fittings such as Bends, Tees, Elbows etc., but excludes Brass of Gun-
metal fixture like Tap, Cocks, Valves, PVC connection Pipes etc.
2.3.4 Ball Valve
The ball valve shall be high class and shall confirm to I:S 1703. The nominal size of ball valve
shall be that corresponding to the size of pipe for which it is used. The ball valve shall be of brass
of gun-metal and the float for low pressure in Polyethylene and for high pressure in copper.
Each and every ball valve while in closed position shall withstand an internally applied hydraulic
pressure of 20 kg /Cm2 for a minimum period of two minutes without leakage or sweating.
Every high pressure ball valve when assemble in working condition, with the float immersed to not
more than half its volume shall remain closed against a test pressure of 10.5 Kg. /Cm2.
Polyethylene floats shall be watertight and non-absorbent and shall not contaminate water and
with no jointing adhesive jointing parts.
The minimum thickness of the copper sheet used for making copper floats shall be of 0.45 mm.
The thickness of materials of the float shall be uniform throughout.
2.3.5 Ferule:
The ferrules for connection with C.I. Main shall generally confirm to I.S 2692 and shall be of
nominal bore as specified. The ferrule shall be fitted with 3 screw and plug or value capable or
complete cutting off the supply to the connected pipe as and when required. For fixing the ferrule
the C.I. main shall be drilled and tapped during non-supply hour at 45o to the connected pipe as
and when required. The ferrule must be so fitted that no portion of the sunk shall be left projecting
with in the main on which it is fitted. After the ferrule is connected, one C.I. bell mouth cover or
with bricks ( as specified) shall be kept over the ferrule to cover the ferrule to protect it and the
cost thereof is to be included in the item, even if there is not mention.
2.3.6 Non – return Valve (Check Valves)
The Non-return valve shall be of Brass or Gun-Metal and shall be of horizontal or vertical flow
type and of the size as specified and confirm to I:S 7810 and I:S 778. The approximate weight of
the valves are given below:
Dia in mm Horizontal type in Kg. Vertical type in Kg.
15 0.30 0.25
20 0.55 0.25
25 0.90 0.75
32 1.25 0.90
40 1.70 1.20
50 2.90 1.45
65 5.25 2.15
80 7.70 4.10
Tolerance 5%
2.3.7 Foot Valve
Foot valve is generally placed at the lower and of the suction pipe of the centrifugal pump to prevent the
suction pipe from empting. Vertical non-return valve may also be fixed in place of foot valve.
The foot valve shall confirm to IS: 038.
2.3.8 Water meters (Domestic Type)
Water meter up to 50mmm nominal size shall confirm to I:S 779. The meter body shall be bronze / Gun-
Metal and marked to read in liters complete with registration box and lid. The water meters shall be
provided with Strainers. Strainers shall be of material which is not susceptible to electrolyte, clean and
shall be fitted on the inlet side of water meter. It shall be possible to remove and clean the strainer and
not permit disturbing the registration box. The offer should include the same. The water meters shall
bear ISI Mark.
2.3.9 Bibcock and Stop Cock
These shall conform to I:S 781 bear ISI Mark. The Bib cock is a draw off tap with a horizontal inlet and
free outlet and stopcock is a valve with a suitable means of connection for insertion in a pipeline for
controlling or stopping the flow. This shall be of screw down type. The cocks shall open in anti-
clockwise direction. The stopcocks should be C.P. concealed stopcocks and C.P. angle valves type as
specified in tender schedule. Bib cocks should be also C.P. Brass hid cocks.
2.3.10 Full way Valve (Brass)
Full way valve is a valve with suitable means of connection for insertion in a pipeline for controlling or
stepping the flow. The valve shall be of brass fitted with a cast-iron wheel and shall be of gate valve
type confirming to I:S 780 brass rod latest one, opening full way and of the size as specified.
The approximate weight of the valves are indicated below for guidance.
Dia in mm Flanged End valves in Kg. Screwed End valve in Kg.
15 1.021 0.567
20 1.503 0.680
25 2.498 1.077
32 5.232 1.559
40 6.082 2.268
50 6.691 3.232
65 10.149 6.840
80 13.381 8.845
2.3.11 Gun-Metal Full way Valve
This shall be of the Gun-Metal fitted with wheel and shall be of Gate-Valve type opening full way. This
shall confirm to I:S 778. Class I. The valves should bear I.S.I. Mark.
2.4 TECHNICAL SPECIFICATION FOR STONE WARE PIPE ETC.
2.4.1 Stone ware pipes (Materials)
The S.W. Pipes and Fittings should be of Grade „A‟ confirming to I :S 651/1965. The pipes shall be
sound free from visible defects such as fire crack or hair crack and flaw or blister. The pipes shall give a
sharp clear line when struck with a light hammer and should be perfectly salt glazed.
Pipe in mm. Thickness of the Weight of Each
___________ Barrel in mm. Pipe in Kg.
100 12 14
150 16 22
200 17 33
230 19 44
250 20 52
300 25 79
350 30 100
400 35 125
450 38 147
The length of pipes are 600 mm exclusive of the internal depth of Socket.
2.4.2 Excavation of Trench for Laying Sewer Pipes:
The trenches for the pipes shall be excavated to the lines and level as directed. The bed of the trench
shall have to be evenly dressed throughout from one change of grade to the next. The gradient is to
stout by means of sight rails and booing rods and the required depth the excavated at any point. The
depth of the trench shall not be less than one meter, measured from top of the pipe to the surface of the
ground under roads and not less than 0.75 mtr. elsewhere. The width of the trench shall be the nominal
diameter of the pipe plus 400 mm. The bed of the trench if in soft or made up earth, shall be well
watered and rammed before laying the pipes and the depressions if any shall be properly filled with
sand and consolidated in 200 mm layer. Depending on soil condition piling way even be necessary if so
desired by the consultant / Engineer-in-charge. If rock is met with, it shall be removed 150 mm below
the level of the pipe and the trench will be refilled with sand and consolidated.
The excavated materials shall not be placed within one mtr. Or half of the depth of the trench which
ever is greater, from the edge of the trench.
The trench shall be kept from water, shoring and shuttering shall be provided wherever required.
Excavation below water table shall be done after dewatering the trenches.
After the excavation of the trench is completed foundation of cement concrete M20 in hard granite metal
( size 25 to 40 mm) shall be laid with proper level all along under the length of the pipe with hunching or
all around concrete as per drawing.
Laying, jointing, hunching of the pipes and fittings. Drain Pipes( S.W. Pipes and other pipes used for
drain and sewer) shall be laid in straight lines and to the even gradients as shown in the layout
drawings.
The socket end of the pipes shall face upstream. Adequate care shall be exercised in setting out and
determining the level of the pipes and the Contractor shall provide suitable instruments, templates, sight
rails, boning rods and other equipments necessary for the purpose. In the case of pipes with joints to be
made with loose collars. The collars shall be slipped on before the next pipe is laid. In those joints a
tight ring of twisted jute tarred soaked in cement slurry filling to ensure proper alignment and prevent.
Cement entering the pipes. Cement compound joints is to be finished with proportion 1:1 with 450
beveling. The joints are to be kept wet with wet bag until the same are properly set with beveling. The
cement mortar joints shall be cured at least for 7 (seven) days.
In the case of S.W. Pipe joints (socket and Spigot), they should be caulked first with tarred jute (spun)
of required diameter, almost quarter depth of the socket, after which cement mortar 1:3 is pushed in
with wooden chisel and finishing beveled at outside at 450. Instead of jute of hemp rubber gasket of
proper size may also be used. The whole joint must be cured for not less than three days. In case of
pipes less than 250 mm dia, joints should be made at ground level with three pipes at a time and for
larger ones two pipes at a time and after curing they should be soled in foundation with the help of the
ropes. All pipes should be properly hunched with cement concrete 1:3:6 with hard granite metal of size
25 mm to 40 mm or otherwise specified as shown in the drawing. Where the pipes are crossing the
drain or road, all –round concrete 1:3:6 with H.G. Metal of size 25 mm to 40 mm is to be done to 150
mm thick over the barrel of the pipe.
The whole of the drain work shall be tested when laid, and at the completion of the contract, to the
satisfaction of the consultant / Engineer-in-charge and shall be retested if necessary, until found
satisfactory. The test shall be made by means of water under pressure at the highest point of the
section under test and providing an air pipe at the lower end of the line. Maximum head of 5 )five) feet
(1.5 Mtr ) must be maintained.
2.4.3 Excavation and refilling
Excavation for drain and pipe trenches shall be straight and to the correct depth and gradient. The
trench bottom shall be of sufficient width to allow working space for pipe jointing.
Excavated materials shall be damped away from the side as directed by Engineer-in-charge. Suitable
precautions are to be taken to prevent inflow of water into the excavated area, during construction.
The Contractor at his own expense shall pump out or otherwise remove any or all water, which during
the continuance of contract, may be found in the excavated trenches to keep the trench clear of water
during the work under progress.
No excavation for pipe line shall be filled and line covered, until the line therein has been passed and
tested.
2.4.4 Burried Services
All pipes, cable mains and other services exposed by the excavations shall be effectively supported by
timbering or other means for which no extra payment will be allowed. The Contractor shall be
responsible for any damage occurring to buried services and make good the same at his own cost to
the satisfaction of the Consultant / Engineer-in-charge.
2.4.5 Trench condition
Where a trench is excavated and refilled after laying the pipe, settlement of the earth in the refilled
trench take place. The filling above the top of pipe, settles relatively, more than the sides of the trench,
thereby developing frictional resistance. The contractor is required to take special precaution against
this while refilling the trenches, procedure for back filling as stipulated earlier should be strictly followed.
2.4.6 Inspection chambers / Manholes
At every change of alignment, gradient or diameter of a drain, there shall be a manhole or inspection
chamber. The maximum distance between Manhole Chamber shall be 30 Mtrs. For the lines laid
straight.
All Manholes and inspection chambers shall have internal dimensions as shown on drawing and B.O.S.
the depth of invert shall be according to the gradient.
The foundation for Manhole shall be 150 mm thick and with cement concrete M20 in hard granite well
graded metal of 25 mm to 40 mm size. The concrete shall project 75 mm beyond the external faces of
the brick work.
The brick masonry shall be done in cement mortar in the proportion of 1:4 and thickness of the brick
wall should be 250 mm thick upto 1200 mm depth from Ground Level and beyond that the wall
thickness shall be maintained 375 mm. Both the inside and outside surface of the walls of the chamber,
shall be finished with cement plaster 1:4 – In addition to this, the inside surface should also be provided
with cement punning.
On the top of base slab channeling on C.C. M20 with granite chips is to be done keeping the diameter
equal to the dia of drain pipe and depth equal to ¼th of the dia of the pipe. The channel, should be done
longitudinally at the center, connecting both the ends of the pipe. The channel is to be hunched up with
concrete M20 with hard granite chips of size 20 mm and below) sloping upwards from the edge of
channel to meet the side of chamber at gradient of 1:6. The channel and benching are to be finished
smooth and cement mortar 1:4 and punning.
Sewers of un-equal sectional area and branch sewers shall not be jointed at the same invert in a
Manhole inspection chamber unless it is unavoidable. The branch sewers should deliver sewage in the
Manhole in the direction of main flow and the junction must be made with case so that the flow in the
main is not impeded. Channels for drains coming from the side of the Manhole chamber, shall be
curved to meet the main drainage channels.
The Manhole and Inspection Chambers shall be covered with R.C.C. cover slab or thickness 100 mm to
150 mm according to the requirement at site. One C.I. Manhole cover of diameter and weight as
stipulated in the tender schedule shall be fixed, on the cover slab. Unless otherwise mentioned the C.I.
cover and Frames and shall confirm to I:S 1726. Heavy duty covers etc., under heavy vehicular traffic
condition and capable of bearing wheel loads up to 11.25 Tor are to be used and medium duty under
light type wheel traffic loads and light duty for domestic premises are to be used. Covers and Frames
shall be clearly cast, double water seal type and they shall be free from air and sand holes. The cover
shall be gas tight and water tight with proper water-seal. The C.I. Cover and Frame shall be coated with
two coats of black bituminous paint. The frame of Manhole cover shall be fixed on the slab while the
slab is casted.
2.4.7 Gully Trap chamber
The size of Chamber for 1500 x 100 mm S.W. Yard gully shall be 300 x 300 mm (inside). Foundation
100 mm thick in cement concrete m20 in hard granite metal of size 25 mm to 40 mm. The foundation
should project 75 mm, from outer surface of wall. Brick work in cement mortar 1 :4 /125 mm thick,
depth upto 600 mm maximum. The finishing of masonry walls both inside and outside should be done in
cement mortar 1:4 Cement punning should be provided on the inner surface. One C.I. frame and cover
of (Clear Opening 300 x 300 mm wt. 7 kg. ) shall be fixed on the top of Chamber, duly embedded in
C.C. 1:2:4 with granite chips and finished with Cement Plaster 1:4. The trap should be buried in cement
concrete M20 in H.G.C.B. Chips upto the mouth and one C.I. Grating of size 225 mm X 225 mm are to
be fixed on the top of mouth of Gully Trap to arrest rubbishes.
3. TECHNICAL SPECIFICATION FOR ELECTRICAL INSTALLATION WORK .
3.1 General Requirements
The installations shall generally be carried out in conformity with the requirements of Indian
Electricity Act, 1910 as amended up to date and Indian Electricity Rules, 1956 framed there under, the
relevant regulations of the Electric Supply Authority concerned and also with the specifications laid
down in the Indian Standard IS:732/1963 "Code of Practice (Revised) for Electrical Wiring Installations
(System Voltage not exceeding 650V)". The work shall be executed as per National Electrical Code and
if any item is not covered there under or there is any doubt, the specification approved by the Engineer-
in-charge will be final and binding.
3.1.1 Ambient Conditions
All Electrical installations and equipments shall be suitable to work in following ambient
conditions.
Maximum Temperature : 50 degree Celsius
Relative Humidity : 100%
In the vicinity of : _________, Orissa.
System Conditions
The Electrical installations and equipments shall be suitable for operation in following system
conditions.
Supply voltage : 415 Volts +/-10%
Supply frequency : 50Hz +/-5%
Number of Phases : Three
3.1.1 Scope
3.1.2 Materials:-
All materials, fittings, appliances used in electrical installations shall confirm to Indian Standard
Specifications wherever these exist. A list of approved materials is attached in annexure-I. Materials not
included in the list as well as any particular make should be approved by the Consultant or Engineer-in-
charge before use. All required materials covered under this specification except mentioned otherwise
clearly, shall be supplied and installed by the contractor complete in all respect. The materials and
accessories required for completing the work will form part of the work although they have not been
specified separately.
Selection of materials and installation work shall be such as to simplify operation, inspection,
maintenance and testing. The work shall include all reasonable precautions and provisions for safety of
operation and maintenance personnel.
3.1.3 Standard:-
(a) Unless otherwise specified, all materials covered under this specification shall be designed,
manufactured, tested and installed in conformity with the latest Indian Standard
Specifications. In case such Indian Standard Specifications are not published equivalent
British Standard Specifications shall be followed. All equipments shall confirm to latest
Indian Electricity Rules, PWD and Local/State laws or byelaws as regards to safety, earthing
and other essential provisions specified therein.
(b) All equipments and materials selected shall also be supplied and installed taking into
consideration the Factories Act, Fire Regulations and Local laws or byelaws. All light fittings
and equipments selected shall be of well tied out design. All materials used in the assembly
of fittings and their accessories shall be of high quality and manufactured in accordance with
the best modern practice.
(c) All the materials supplied by the contractor according to the contract conditions will be
subject to inspection and approval by the Consultant or/and Engineer-in-charge or their
authorised representative from time to time. The contractor shall extend all required facilities
for such inspection free of cost. At the time of inspection, the inspecting officer shall have
full liberty to reject any such material, which does not confirm to specifications or the
requirements. No claim for any rejected materials shall be entertained by the owner. The
contractor shall remove all rejected materials from the site at his own cost.
(d) No surplus material procured by the contractor will be accepted by the owner.
(e) The contractor will be responsible to get electrical installations inspected by the Electrical
Inspector of the State Government and to obtain the statutory clearance for energisation.
The owner, on production of documentary evidences, will reimburse the necessary
inspection fees.
(f) The contractor should possess valid electrical contract licence and labour licence issued by
the appropriate statutory authority of the State Government during the execution of the
contract.
3.1.4 Inspection and Approval
The contractor shall put up samples of all major items for inspection and testing by the Consultant
and/or Engineer-in-charge for which the contractor shall furnish minimum 10 days clear notice in
advance to enable them to depute their Inspecting Officer. Similar procedure shall be adopted for the
approval of s
Samples of minor materials/ accessories to be used for the work.
3.2.0 GENERAL TECHNICAL SPECIFICATION OF MATERIALS
3.2.1 Switches & Plug Sockets:-
All switches, 5A plug sockets, power plug sockets, TV sockets and Telephone sockets shall be
flush mounting type with ISI mark of approved make. The switches and plug sockets shall confirm to
