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( a?Titr~ATJr)I ndian St andard

PORTLAND-POZZOLANA CEMENT -TSPECIFICATIOhPART 2 CALCINED CLAY BASED

( Thir d Revi si onFirst Reprint MARCH 1993

UDC 621*944+1*046

( Reaffirmed 2005 )

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Cement and Concrctc Sectional Committee, CED 2

FOREWORDThis Indian Standard ( Part 2 ) ( Third Revision ) was adopted by the Bureau of Indian Standardsafter the draft finalized by the Cement and Concrete Sectional Committee had been approved by theCivil Engineering Division Council.Portland-pozzolana cement can be produced either by grinding together Portland cement clinkerand pozzolana with addition of gypsum or calcium sulphate, or by intimately and uniformly blendingPortland cement and fine pozzolana. While grinding of the two materials together presents no difficulty,the mixing of dry powders uniformly is extremely difficult. The blending method should, therefore, beresorted to only when the grinding method is impossible or proves uneconomical in a particular case.Where blending method is adopted, every care should be taken to see that the blending is as intimateas possible. Generally, if the blending is not uniform, it is reflected in the performance tests. TheSectional Committee responsible for the preparation of this specification is of the opinion that theblending method should be confined to factories and such other works where intimate and uniformblending is feasible with the employment of requisite machinery so as to ensure uniformity of produc-tion and guaranteed performance.Portland-pozzolana cement produces less heat of hydration and offers greater resistance to theattack of aggressive waters than normal Portland cement. Moreover, it reduces the leaching ofcalcium hydroxide liberated during the setting and hydration of cement. It is particularly useful inmarine and hydraulic construction and other mass concrete structures. Portland-pozzolana cement cangenerally be used wherever 33 grade ordinary Portland cement is usable under normal conditions.However, it should be appreciated that all pozzolanas need not necessarily contribute to strength atearly ages. In view of this fact, this present specification has been prepared to enable manufacturers toproduce Portland-pozzolana cement equivalent to 33 grade ordinary Portland cement on the basis of

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1 SCOPEThis standard ( Part 2 ) ( Third Revision)covers the manufacture, physical and chemicalrequirements of Portland-pozzolana cementmanufactured by using calcined clay pozzolanaor a mixture of calcined clay and fly ashpozzolana.2 REFERENCESThe Indian Standards listed in Annex A arenecessary adjuncts to this standard.3 TERMINOLOGY3.0 For the purpose of this standard, the defi-nitions given in IS 4845 : 1968 and the followingshall apply.3.1 Pozzolana

shall be either Lalcined clay pozzolana confor-ming to IS 1344 : 1981 or a mixture of calcinedclay pozzolana conforming to IS 1344 :1981 andfly ash conforming to 1s 3812 : 1981 subject tothe requirements of 4.1.2 and 4.1.3.4.1.2 Fineness and average compressive strengthin lime reactivity of pozzolana that is to beblended with finished Portland cement to pro.duce Portland-pozzolana cement, when testec!in accordance with the procedure specified inIS 1727 : 1967, shall not be less than 320 ms/kgand 4-O MPa respectively. Average compressivestrength in lime reactivity test of such pozzo-lana shall be carried out at the fineness atwhich pozzolana has been ground for blending.4.1.3 Average compressive strength in limereactivity of pozzolana that is to be intergroundwith Portland cement clinker for manufactureof Portland-pozzolana cement shall not be less

IS I489 ( Part 2 ) : 1991

lndian StandardPORTLAND-POZZOLANACEMENT-SPECIFICATION

PART 2 CALCINED CLAY BASED

( Third Revision J

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IS 1489 Part 2 ) : 1991( natural or chemical ) or water or both, shallbe added. Such air-entraining agents or surfac-tants which have been proved not harmful, maybe added in quantities not exceeding onepercent.5 MANUFACTUREPortland-pozzolana cement shall be manufac-tured either by intimately intergrinding Port-land cement clinker and pozzolana or by inti-mately and uniformly blending Portland cementand fine pozzolana. For blending of Portlandcement and potzolana, the method and equip-ment usd shall be the one well accepted forachieving a complete uniform anJ intimateblending. The blending operation sha!l be a pro-perly designed and well defined unit operation inapproved blenders. Gypsum (natural or chemical)may be added if the Portland-pozzolana cementis made by intergrinding Portland cement clinkerwith pozzolana. The pozzolana constituent shallnot be less than 10 percent and not more than25 percent by mass of Portland-pozzolanacement. The homogeneity of the mixture shallbe guaranteed within f 3 percent in the sa.meconsignment.6 CHEMICAL REQUIREMENTSPot tland-pozzolana cement shall comply with

7.2 Soundness7.2.1 When tested by Le Chatelier methodand autoclave test described in IS 4031( Part 3 ) : 1988, unaerated Portland-pozzolanacement shall not have an expansion of morethan 10 mm.and 0.8 percent respectively.7.2.1.1 In the event of cement falling to complywith any or both the requirements specified in7.2.1, further tests in respect of each failureshall be made as described in IS 4031 ( Part 3 ):1988 from another portion of the same sampleafter aeration. The aeration shall be done byspreading out the sample to a depth of 75 mmat a relative humidity of 50 to 80 percent for atotal period of 7 days. The expansion of cementso aerated shall be not more than 5 mm and0.6 percent when tested by Le-Chateliermethod and autoclave test repectively asdescribed in IS 4031 ( Part 3 ) : 1988.

7.3 Setting TimeThe setting time of Portland-pozzolana cementwhen tested by the Vicat apparatus methoddescribed in IS 4031 ( Part 5 ) : 1988 shall be asfollows:

Initial setting time 30 min, MinFinal setting time 600 min, Max

7.3.1 If cement exhibits false set, the ratio offinal penetration measured after 5 min of

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7.4 Compressive Strength7.4.1 The average compressive strength of notless than three mortar cubes ( area of face50 cm* ) composed of one part of cement, threeparts of standard sand ( see Note 2 ) by mass,and P/4 + 3.0 percent ( of combined mass ofcement and sand ) water, and prepared, storedand tested in the manner described in IS 4031( Part 6 ) : 1988 shall be as follows:

a) At 72&l h 16 MPa, M inb) At 168&2 h 22 MPa, M inc) At 672&4 h 33 MPa, M inNOTES

1 P is the percentage of water required to producea paste of standard consistency ( see 12.3 1.2 Standard sand shail conform to IS 650 : 1991.

7.4.2 Notwithstanding the cubes satisfying thestrength requirements specified in 7.4.1, theyshall show a progressive increase in strengthfrom the strength at 72 h.7.5 Drying ShrinkageThe average drying shrinkage of mortar barsprepared and tested in accordance with IS 4031( Part 10 ) : 1988 shall not be more thanO-15 percent.8 STORAGEThe Portland-pozzolana cement shall bestored in such a manner as to permit easy

IS 1489 ( Part 2 ) : 199110 DELIVERY10.1 The cement shall be packed in bags [ jutesacking bag conforming to IS 2580 : 1982,double hessian bituminized ( CR1 type), multi-wall paper conforming to IS 11761 : 1986,polyethylene lined ( CR1 type ) jute, light-weight jute conforming to IS I2154 : 1987,woven HDPE conforming to IS 11652 : 1986,woven polypropylene conforming to IS 11653 :1986, jute synthetic union conforming toIS 12174 : 1987 or any other approved com-posite bags ] bearing the manufacturers nameor his registered trade-mark, if any. The wordsPortland-pozzolana cement - calcined claybased or a bright colour band to distinguishPortland calcined clay based pozzolanacements from other cements and the numberof bags ( net mass ) to the tonne or the nominalaverage net mass ( see 10.2 ) of the cement shallbe legibly and indelibly marked on .each bag.Bags shall be in good condition at the time ofinspection.10.1.1 Similar information shall be provided inthe delivery advices accompanying the ship-ment of packed or bulk cement ( see 10.3 ).10.2 The average net mass of cement per bagshall be 50 kg ( see Annex B ).10.2.1 The average net mass of cement per bagmay also be 25 kg subject to tolerances as givenin 10.2.1-l and packed in suitable bags as agreed

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IS 1489 ( Part 2 ) : 1991shall be equal to or more than the quantityin 10.2.2. However, the actual temperature during thetesting shall be recorded.10.3 Supplies of cement in bulk may be madeby arrangement between the purchaser and the 12.3 Consistency of Standard Cement Pastesupplier ( manufacturer or stockist ). The quantity of water required to produce a

NOTE - A single bag paste of standard consistency to be used forOr contaer Ontaining determination of the water content of mortar1 000 kg or more net mass of cement shall be consi-dered as bulk supply of cement. Supplies of cement for the compressive strength test and for themay also be made in intermediate containers, for determination of soundness and setting time,example, drums of 200 kg, by agreement between thepurchaser and the manufacturer. shall be obtained by the method described inJS 4031 ( Part 4 ) : 1988.11 SAMPLING11.1 Samples for Testing and by Whom to beTakenA sample or samples for testing may be takenby the purchaser or his representative, or byany person appointed to superintend the worksfor the purpose of which the cement is required,or by the latters representative.11.1.1 The samples shall be taken within threeweeks of the delivery and all the tests shall becommenced within one week of sampling.11.1.2 When it is not possible to test thesamples within one week, the samples shall bepacked and stored in air-tight containers tillsuch time they are tested.11.2 In addition to the requirements of 11.1,the methods and procedure or sampling shallbe in accordance with IS 3535 : 1986.

12.4 Independent Testing12.4.1 If the purchaser or his represen!ativerequires independent tests, the samples shall betaken before or immediately after delivery atthe option of the purchaser or his representa-tive, and the tests shall be carried out in accor-dance with this standard on the written instruc-tions of the purchaser or his representative.12.4.2 Cost of TestingThe manufacturer shall supply, free of charge,the cement required for testing. Unless other-wise specified in the enquiry and order, the costof the tests shall be borne as follows:

a> By the manufacturer if the results showthat the cement does not comply withthis standard. andb) By the purchaser if the results show thatthe cement complies with this standard.

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IS 1489 Part 2 ) : 1991

IS No.269 : 1989

650 : 1991

1344 : 19811727 : 19672580.: 1982

3535 : 19863812 : 1981

403 1( Parts

ANNEX A( Clause 2 )

LIST OF REFERRED INDIAN STANDARDSTitle IS No.

Specification for 33 grade ordi- 4032 : 1985nary Portland cement (fourthrevision )Specification for standard sand 4845 : 1968f&r testing of cement ( secondrevision ) 4905 : 1968Specification for calcined clay ] 1652 : 1986pozzolana ( second revi sion )Methods of test for pozzolanicmaterials ( f irst revi sion ) 11653 : 1986Specification for jute sacking bagsfor packing cement ( secondrevision ) 11761: 1986Methods of sampling hydrauliccements (first revi sion )Specification for fly ash for use as 12154 1987pbzzolana and admixture (firstrevision ) 12174 : 1987Methods of physical tests forhydraulic cement 12423 : 1988

TitleMethod of chemical analysis ofhydraulic cement (Jirst revi sion )Definitions and terminology relat-ing to hydraulic cementMethods for random samplingSpecification for high densitypolyethylene ( HDPE ) wovensacks for packing cementSpecification for polypropylene(PP ) woven sacks for packingcementSpecification for multi-wall papersacks for cement valved-sewngussettedSpecification for light weight jutebags for packing cementSpecification for jute syntheticunion bag for packing cementMethod for calorimetric analysis

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IS 1489 ( Part 2 ) : 1991ANNEX C( Foreword )

COMPOSITION OF THE TECHNICAL COMMITTEECement and Concrete Sectional Committee, CED 2

Chairman RepresentingDR H. C. VISVESVARAYA In personal capacity ( Universily of Roorkes, Roorkce 247 667 )

MembersSHBI H. BEATTAOEARYADR A. K. CEATTEBJ EESHRI S. H. SVBRAMANIAN ( Allernals )CHIEF ENQINEEX ( DESIGNS )SIJ PERINTENDINQ ENGINEER

( B&S ) (Alternate )CHI~B ENGINEER, NAVAQA~ DAMSOPERINTENDINQENQINE ER, QCC ( AltersCWIEF ENQINE ER ( RESEARCH-CUM-DIRECTORRESEARCH OFRICER ( CONCRETE-TECHNOLOQY ) ( Altsrnate )DIRECTORJ OINT DIRECTOR ( Alternate )DIRECTOR ( C & MDD ) ( N & W )DEPUTY DIRECTOR ( C (Ir MDD) (N W &

Orissa Cement Limited, New DelhiThe Associated Cement Companies L td, BombayCentral Public Works Department, New Delhi

Sardar Sarovar Narmada Nigam Ltd, Gandhinagarrate )) I rrigation and Power Research Institute, AmritsarA. P. Engineering Research Laboratories, HyderabadCentral Water Commission, New DelhiS)( Altcrnats )SERI K. H. GANQWALSHRI V. PAT~ABRI ( Alternate )SHRI V. K. GHANEKARSHRI S. GOPINATHSERI R. TAMILAKARAN ( Alldrnalr )

SHRI S. K. GVHA TEAKVRTASam S. P. SANKARANARAYANAN( Ahrnalr )DR IRSHAD MASOOD

Hyderabad Industries Limited, HyderabadStructural Engineering Research Centre ( CSIR ), GhaziabadThe India Cements Ltd, MadrasCannon Dunkerley & Company L imited, Bombay

Central Buildiog Research Tnstitute ( CSXR ), Roorkee

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IS 1489 ( Part 2 ) : 1991( Conlinurd from @g# 6 )

MombarsRQPRmJEwfATIV~SHIU A. u. RlJ3isIW3~A~ISHRI C. 5. SHABMA ( AUnncllr)SERI J . SEX GUPTASsar A. K. LAL ( Allwnai~ )SARI T. N. SUBBA RAOSERI S. A. REDDI ( Alternat 1S~J PERINTENDENT NGINEER ( DEEI~NS )EXECWTIVEE~CUNEE~, S. M. R. DIVISION

( Alternate )SBRI S. B. SURISBRI N. CHANDBASEKARAN ( Ahrnatr )DR H. C. VISVEBVARAYASARI D. C. CHA~TURVE~I ( Ahsrna e )Sam G. R AXAN,Director ( Civ Engg )

Builders Agociation of India, BombayCement Corporation of India Limted, New DelhiNational Buildings Organization, New DelhiGammon India Limted, BombayPublic Works Department, Government of Taml Nadu

Central Soil and Materials Research Station, New DelhiThe Institution of Engineers ( India ), CalcuttaDirector General, BIS ( Ex-o&o Msmbsr )

Sscvtar~SHRI N. C. BANDYOPADHYAYJoint Director ( Civ Engg ), BIS

Cement, P.ozzolana and Cement Additives Subcommittee, CED 2 : 1

DR H. C. VISVESVABAYASHRI S. K. BANERJE~SRRI $OYNATn I)ANERJEnSRRI N. G. BASAKSBRI T. MADIESHWAR ( Al~rrnatr )

In personal capacity ( Uni versi ty f Roorkes, Roorkcs 247 667)National Test House, CalcuttaCement Manufacturers Association, BombayDirectorate General of Technical Development, New Delhi

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IS 1489 ( Part 2 ) : 1991( Continued from pap 7 )

MImbrrs R0pWitingSHBI N. S. GALAPDB ( Alternate )Soar S. A. RIPDDI Gammon India Limited, BombaySHRI A. U. RIJESI~~HANI Cement Corporation of India Limited, New DelhiSHRr M. P. SINQH Federation of Mini Cement Plants, New DelhiSUPERINTENDINQ ENGINEER (D) Public Works Department, Government of Tamil NaduSENSOR DEPUTY CHIEB ENCQNEER( GENERAL ) ( Alternate )SHRI S. B. f%,RI Central Soil and Materials Research Station, New DelhiSH~I N. CHANDRA~EKARAN ( Alternate )SHRI L. SWAROOP Orissa Cement Limited, New Delhi

SFIRIH. BHATTACHARYA ( Alternate )SHRI v. M. VE,, Bhilai Steel Plant, Bhilai

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( Cont i nued r om second cover )This standard contains clauses 4.1.4, 4.2 and 12.4.1 which permit the purchaser to use his optionand clauses 10.2.1 and 10.3 call for agreement between the purchaser and the manufacturer.The composition of the technical committee responsible for the formulation of this standard is givenin Annex C.For the purpose of deciding whether a particular requirement of this standard is complied with, thefinal value, observed or calculated, expressing the result of a test, shall be rounded off in accor-dance with IS 2 : 1960 Rules for rounding off numerical values ( revised ). The number of significantplaces retained in the rounded off value should be the same as that of the specified value in thisstandard.

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Bureau of Indian StandardsBIS is a statutory institution established under the Bureau of Indian Standards Act, 7986 to promoteharmonious development of the activities of standardization, marking and quality certification ofgoods and attending to connected matters in the country.CopyrightBIS has the copyright of all its publications. No part of these publications may be reproduced inany form without the prior permission in writing of BIS. This does not preclude the free use, in thecourse of implementing the standard, of necessary details, such as symbols and sizes, type or gradeaesignations. Enquiries relating to copyright be addressed to the Director (Publications), BIS.Revision of Indian StandardsIndian Standards are reviewed periodically and revised, when necessary and amendments, if any, areissued from time to time. Users of Indian Standards should ascertain that they are in possession ofthe latest amendments or edition. Comments on this Indian Standard may be sent to BIS giving thefollowing reference:Dot : No. CED 02 (4676)

Amendments lssulsd Since PublicationAmend No. Date of Issue Text Affected

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AMENDMENT NO. 1 NOVEMBER 1991TO

IS 1489 ( Part 2 ) : 1991 PORTLAND - POZZOLANACEMENT - SPECIFICATIONPART 2 CALCINED CLAY BASED

( Thi rd Revision )(Page 5, clause B-l.2 ) - Substituteup to 25 tonnes for of 20 to 25

tonnes.

(CED2)Printed at t%meo Printing Press Delhi, India

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AMENDMENT NO.2 JUNE 1993TO

IS 1489 ( Part 2 ) : 1991 PORTLAND-POZZOLANACEMENT-SPECIFICATIONPART2 CALCINED CLAY BASED

( Third Revision)( Page 3, clor rses 10.2.2 to 10.2.2.4 ) - Substitute the following for theexisting clauses:

10.2.2 When cement is intended for export and if the purchaser so requires,packing of cement may be done in bags or in drums with an average net mass ofcement per bag or drum as agreed to between the purchaser and themanufacturer.10.2.2.1 For this purpose the permission of the certifying authority shall beobtained in advance for each export order.10.2.2.2 The words FOR EXPORT and the average net mass of cement perbag/drum shall be clearly marked in indelible ink on each bag/drum.10.2.2.3 The packing material shall be as agreed to between the manufacturerand the purchaser.

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AMENDMENT NO. 3 MAY 2000TOIS 1489 ( Part 2 ) : 1991 PORTLAND-POZZOLANACEMENT - SPECIFICATIONPART 2 CALCINED CLAY BASED

(Third Revision)Substitute net mass for nominal average net mass and average net mass

wherever these appear in the stmdard.

(CED2) ReprographyUnit, BIS,New Delhi, India