8/12/2019 8112-OPC 43 Grade

1/20

I S 8 2: 989

Indian Standard

43 GRADE ORDINARY PORTLANDCEMENT - SPECIFI CATION

( Fi rs-t Rev i si on )

UDC 666.942.2

0 BIS 1990

BUREAU OF INDIAN STANDARDSMANAK BHAVAN , 9 BAHADU R SHAH ZAFAR MARC3

NEW DELHI 110002

ay 1990 Price Group 4

( Reaffirmed 2005 )

8/12/2019 8112-OPC 43 Grade

2/20

Cement and Concrete Sectional Committee, CED 2

FOREWORD

This Indian Standard ( First Revision ) was adopted by the Bureau of Indian Standards on30 Octob

1989, after the draft finalized by the Cement and Concrete Sectional Committee had been approvedby the Civil Engineering Division Council.

This standard was first published in 1976 under the title Specification for high strength ordinaryPortland cement. Since publication of this standard, large number of amendments have been issuedfrom time to time in order to modify various requirements based on experience gained with the useof the standard and the requirements of the users and also keeping in view the raw materials and fuelavailable in the country for manufacture of cement. The important amendments include increasing thvalue of total loss on ignition from 4 to 5 percent, modifying the requirement of total sulphur contentcalculated as sulphuric anhydride ( SOa ) reducing the fineness by specific surface of cement from 350ma/kg to 225 ma/kg, making autoclave soundness test compulsory irrespective of magnesia content,incorporating a provision for retest in respect of autoclave soundness test after aeration ofcement, incorporating a clause on false set of cement, permitting packaging of cement in 25 kg bags

and making compulsory provision for issuing a certificate indicating the total chloride content in*cement. Further, in view of the decision to designate ordinary Portland cement by its 28-day compressivestrength, the title of this standard was modified as 43 grade ordinary Portland cement -Specification.In view of these large number of amendments, the Sectional Committee decided to bring out tic tustrevision of the standard incorporating all these amendments, so as to make it more convenient or theusers.

This specification intends to cover the requirements of ordinary Portland cement used for the manu-facture of prestressed concrete sleepers also. Some requirements of 43 grade ordinary Portland cefor uses, such as, manufacture of railway sleepers and precast products may be agreed to between thepurchaser and the supplier.

Mass of cement packed in bags and the tolerance requirements shall be in accordance with thorelevantprovisions of the St andar ds of W ei ghts and M easures Packaged Commod i t i es ) Rufes, 1977 ani B

( see Annex B for information ). Any modification in these rules in respect of tolerance 01~ mass ofcement would apply automatically to this standard. X.

This standard contains 11.4.1 which permits the purchaser to use his option for testing and 6.1, 6.5,9.2.1 and 9.3 which call for agreement between the purchaser and the manufacturer.

In the formulation of this standard considerable assistance has been rendered by National Council forCement and Building Materials, New Delhi as many of these modifications are based on studies c;+out by them.

The composition of the committee responsible for the formulation of this stai>d:ird is given ;Annex C.

For the purpose of deciding whether a parriculat requirement of this standard is complied with, thefinal value, observed or calculated, expressing the result of a test or analysis, shall be rountfcd oaccordance with IS 2 : 1960 Rules for rounding off nurnerlcal vaiues ( revised ). The rl .unabesignificant places retained in the rounded otT value shou d he the same as that of the specified valuthis standard.

8/12/2019 8112-OPC 43 Grade

3/20

IS 8Il2 : 1989

Indian Standard

43 GRADE ORDINARY PORTLANDCEMENT- SPECIFICATION

Fi rst Rev i si on1 SCOPE Table 1 Chemical Requirements for High

I.1 This standard covers the manufacture, chemi-Strength Portland Cement

cal and physical requirements of 43 grade ordinary ( &use 5.1 )

Portland cement. S1 No. Characteristic Reaolrement

2 REFERENCES(1) (2) - (3)

i) Ratio of percentage oflime to percentages of

Not greater than 1.02and not less than 0.66

2.1 The Indian Standards listed in Annex A arenecessary adjuncts to this standard.

silica, alumina and irdnoxide, when calculatedby the formula:

3 TERMINOLOGY

3.1 For the purpose of this standard, the defini-tions given in IS 4845 : 1968 shall apply.

CaO - 0.7 sot28 Si~6;F2.$~0, +

I *ii) Ratio of percentage of Not less than 066

alumina to that of ironoxide

4 MANUFACTUREiii) Insoluble residue, per- Not more than 2

cent by mass

4.1 43 grade ordinary Portland cement shall bemanufactured by intimately mixing togethercalcareous and agrillaceous and/or other silica,alumina or iron oxide bearing materials, burningthem at a clinkering temperature and grindingthe resultant clinker so as to produce a cementcapable of complying with this specification. Nomaterial shall be added after burning other thangypsum ( natural or chemical ) or water or both,and not more than done percent of air-entrainingagents or other agents, which have proved not tobe harmful.

iv) Magnesia, percent by mass Not more than 6v) Total sulphur content Not more than 25

calculated as sulphuric and 30 when trical-anhydride ( SOa ). per-cent by mass

cium aluminate ( seeNote 1 ). ~percent -bymass is 5 or less andgreater than 5 respac-tively

vi) Total loss on ignition Not more than 5 per-cent

NOTES

5 CHEMICAL REQUIREMENTS

5.1 When tested in accordance with the methodsgiven in IS 4032 : 1985. 43 grade ordinary Port-land cement shall comply with the chemicalrequirements given in Table 1.

6 PHYSICAL REQUIREMENTS

6.1 Fineness

When tested for fineness by Blaines air permea-bility method as described in IS 4031 ( Part 2 ) :1988, the specific surface of cement Fhall not beless than 225 m/kg.

ment between the purchaser and the manutacturer.

NOTE - A higher fineness of cement, when speci-fically required . may be agreed to by mutual agree-. _ ^

1 The tricalcium aluminate content ( CIA ) is cal-culated by thz formula:GA - 265 ( AllOr ) - 169 ( FelOI ),where each symbolin brackets refers to the percent( by mass of total cement ) of the oxide, excludingany contained in insoluble residue referred to atSl No. ( iii ).2 Alkali aggregrate reactions have been noticed inaggregates in some parts of the country. On largeand important jobs where the concrete is likely tobe exposed to humid atmosphere or wetting actionit is advisable that the aggregate be tested for alkali

aggregate reaction. In the case of reactive aggre-gates, the use of, cement with alkali content below0.6 percent expressed as sodium oxide< Na,O ) isrecommended.3 Total chloride content in cement shall not exceed0.05 percent by mass for cement used in prestressedconcrete structures and long span reinforced con-crete structures.Method of test for determination ofchloride content in cement is given in IS 12423 : 1988.4 The limit of total chloride content in cement foruse in plain and other reinforced concrete structuresis being reviewed. Till that time, the limit may bemutually agreed to between the purchaser and themanufacturer.

I

8/12/2019 8112-OPC 43 Grade

4/20

6.2 Soundness

6.2.1 When tested by the Le-Chatelier methodand autoclave test described in IS 4031 ( Part 3 ) :1988, unaerated cement shall. nor have an-expansion of more than 10 mm and 08 percentrespectively.

6.2.1.1 In the event of cements failing to complywith any one or both the requirements specifiedin 6.2.1, 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 aeratian shall be done byspreading out the sample.to a depth of 75 mm ata relative humidity of 50 to 80. percent for a.totalperiod of 7 days. The expansion of cements soaerated shall be not more than: 5 mm and 06percent when tested by Le-Chatelier method, andautoclave test respectively.

6.3 Setting Time

The setting time of cement, when tested by theVicat apparatus method described in- IS 4031( Pact. 5), : 1988 shall confor.m to the followingrequirements:

a) Initial. setting time in minutes - not lessthan 30

b) Final setting time in minutes - ;;;rm;;

63.1. If cement exhibits false set, the ratio offinal penetration measured after 5 minutes ~ofcompletion ofmixing period to the initial penetra-tion measured exactly after 20 seconds of com-pletion of mixing, period, expressed as percent,shall be not less than 50. In the event of cementexhibiting. false set, the initial and final settingtime of cement when tested by the methoddescribed in IS 4031 ( Part 5~ c: 1988 after break-ing the false set,. shall conform to 6.3.

6.4 Compressive Strength

The, average compressive strength. of at least threemortar cubes ( area of face 50 cm? ) composed ofone part of cement, three parts of standard sand( conforming to IS 650 : 1966 ) by mass and P/4+ 30 percent ( of combined mass of cement

plus. sand ). water, and prepared, stored and testedin the manner described in IS 4031 ( Part 6 ) :1988, shall be as follows:

a) 72 fl hour not less than 23 MPab) 168 f2 hours not less than 33 MPac) 672 f4 hours not less than, 43 MPae

NOTE - P isthe percentage of water required toproduce a paste of standard consistency ( see 11.3 ).

6.5 By agreement between the purchaser and themanufacturer, transverse strength test of plasticmortar in accordance with the method describedin IS 403 1 ( Part 8 ) : 1988 may be specified inaddition to the test specified in 6.4. The permis-sible values of the transverse strength shall bemutually agreed to between the purchaser andlthesupplier at the time of placing order.

6.6 Notwithstanding the strength requirementsspecified in 6.4 and 6.5, cement shall show aprogressive increase in strength from the strengthat 72 hours.

7.1 The cement shall be stored in suuh a manneras to permit easy access for proper inspection andin a suitable weather-tight building to protect thecement from dampness and to minimize warehousedeterioration.

8 MANUFACTURERS CERTIFICATE8.1 The manufacturer shall satisfy himself thatthe cement conforms to the requirements of thisstandard, and,if requested, shah furnish a certi-ficate to this effect to the purchaser or hisrepresentative, within ten days of dcspatch of thecement.

8.2 The manufacturer shall furnish a certificate,within ten days of despatch of cement, indioatingthe total chloride content in -percent by mass ofcement.

Y DELIVERY

YJ The cement shall be packed in bags [jutesacking bag conforming to IS 2580 : 1982, doublehcssian bituminized, ( CR1 type ), multiwall paperconforming to IS 11761 : 1986, polyethylene lined( CR1 type ) jute, light weight jute conforming toIS 12154 : 1987, woven HDPE conforming toIS 11652 : 1986, woven polypropylene conformingto lS 11653 : 1986, jute synthetic union conform-ing to IS 12174.: 1987 or any other approvedcomposite bags ] bearing the manufacturers nameor his registered trade-mark, if any, and the words43 Grade Ordinary Portland Cement. Thenumber of bags ( net mass ) to the tonne or theaverage net mass of the cement shall be legiblyand indelibly marked on each bag. Bags shall bein good condition at the time of inspection.

9.1.1 Similar information shall be provided in thedelivery advices accompanying the shipment ofpacked or bulk cement ( see 9.3 ).

9.2 The average net mass of cement per bag shallbe 50 kg (see Annex B.).

2

8/12/2019 8112-OPC 43 Grade

5/20

IS 8112 : 1989

9.2:1 The average net mass of cement per bag tested in the manner described in the relevantmay also be 25 kg subject to tolerances as given clauses.in 9.2.1.1 and packed in suitable bags as agreedto between the purchaser and the manufacturer. 11.2 Temperature for Testing

9.2.1.1 The number of bags in a sample taken forweighment showing a minus error greater than 2percent of the specified net mass shall be notmore than 5 percent of the bags in the sample.Also the minus error in none of such bags in thesample shall exceed 4 percent of the specified netmass of cement in the bag. However, the averagenet mass of cement in a sample shall be equal toor more than 25 kg.

9.3 Supplies of cement in bulk may be made byarrangement between the purchaser and thesupplier ( manufacturer or stockist ).

The temperature range within wh-ich physical testsmay be carried out shall, as far as possible. be

27 $2C. The actual temperature during. thetesting shall be recorded.

11.3, Consistency of Standard Cement Paste

The quantity of water required to produce a ,paste.of standard consistency, to be used for the deter-mination of the water content of mortar for thecompressive strength tests and for the determina-tion of soundness and setting time, shall beobtained by the method described in IS 4031( Part 4 ) : 1988.

NOTE - A single bag or container containing 1 000kg or more net mass of cCment shall be consideredas bulk supply of cement. Supplies of cement may

11.4 I ndependent Testing

also be made in intermediate containers, for 11.4.1 If the purchaser or his representativeexample, drums of 200 kg, by agreement between thepurchaser and the manufacturer. requires independent tests, the samples shall be

taken before or immediately after delivery at t&

10 SAMPLING option of the purchaser or his, representa&e, and_the tests shall be carried out in accordance with10.1 Samples for Testing and by Whom to be this standard on the written instruction of theTaken purchaser or his representative.

A sample or samples for testing may be taken bythe purchaser or his representative, or by anyperson appointed to superintend the work forpurpose of which the cement is required or bylatters representative.

-10.1.1 The samples shall be taken within threeweeks of the delivery and all the tests shall becommenced within one week of sampling.

10.1.2 When it is not possible to test the sampleswithin one week, the samples shall be packed andstored in air-tight containers till such time thatthey are tested.

11.4.2 Cost o Testing

The manufacturer shall supply, free of charge, thecement required for testing. Unless otherwisespecified in~the enquiry and order, the cost of thetests shall be borne as follows:

a) by the manufacturer if the results show thatthe cement does not comply with this stan-dard, and

b) by the purchaser if the results show that thecement complies with this standard.

10.2 In addition to the requirements of 10.1, the11.4.3 After a representative sample has been

methods and -procedure of sampling shall be ind rawn, tests on the sample shall be carried out as

accordance with IS 3535 : 1986.expeditiousl y as possible.

10.3 Facilities for Sampling and Identification

The manufacturer or supplier shall afford everyfacility, and shall provide all labour and materialsfor taking and packing the samples for testing thecement and for subsequent identification of thecement sampled.

11 TESTS

11.1 The sample or samples of cement for testshall be taken as described in 10 and shall be

12 REJ ECTION

12.1 Cement may be rejected if it does not complywith any of the requirements of this specification.

12.2 Cement remaining in bulk storage at themill, prior to shipment. for more than six months,or cement in bags in local storage in the hands ofa vendor for more than 3 months after completiondf tests, may be retested before use and may berejected, if it fails to conform to any of therequirements of this specification.

3

8/12/2019 8112-OPC 43 Grade

6/20

-Is 112:1989

IS jvo.650 966

2580: 982

3535: 986

ANNEX A

( Clause 2.1 )

LIST OF REFERRED INDIAN STANDARDS

Title IS No.

Specification for standard sand 11652 -: 1986for testing of cement (firstrevi sion )

Speci6cation for jute sacking 11653 : 1986bags for packing cement ( secondrevision )

Methods of sampling hydraulic 11761 : 1986cements (first revision )

4031 Methods of physical test for( Parts 1 to 13 ) hydraulic cement (first fevifion ) 12 154 g7

4032: 985 Method of Chemical analysis ofhydraulic cement ($Frsr revision ) 12174 : 1987

4845 : 1968 Definitions and terminologyrelating to hydraulic cement 12423 : 1988

4905 : 1968 Methods for random sampling

Title

Specification for high densitypolyethylene ( HDPE ) wovensacks for packing cement

Specification for -polypropylene( PP ) woven sacks for packingcement

Specification for multi wall papersacks for cement, valved-sewn-gussetted type

Specification for light weightjute bags for packing cement

Specification for jute syntheticunion bag for packing cement

Method for calorimetric analysisof hydraulic cement

ANNEX B

( Clause 9.2 )

TOLERANCE REQUIREMENTS FOR THE MASS OF CEMENT

PACKED IN BAGS

B-l The average net mass of cement packed inbags at the plant in a sample shall be equal to~ormore than 50 kg. The number of bags in a sampleshall be as given below:

Batch Size Sample Size

100 to I50 20151 to 280 31281 to 500 50501 to I 200 80

1201 to 3 200

1253 201 and over 200

The bags in a sample shall be selected at random( see IS 4905 : 1968 ).

B-l.1 he number of bags in a sample showing aminus error greater than 2 percent of the spe ifiednet mass ( 50 kg ) shall be not more than 5 per-cent of the bags in the sample. Also the minus

error in none of such bags in the sample shallexceed 4 percent of the specified net mass ofcement in the bag.

NOTE -The matter given in B-l and B-l.1 rextracts based on the Standards o f Weights andM easur es Packaged Commodi ties ) Rul e+ 1977 twhich reference shall be made for full datails. Anymodification made in these Rules and other relatedActs and Rules would apply automatically.

B.l.2 ln case of a wagon/truck load of 20 to 25tonnes, the overall tolerance on net mass ofcement shall be Otto +05 percent.

NOTE - The mass of a jute sacking bag conform-ing to IS 2580 : 1982 to hold 50 kg of cement is 531 g.the mass of a double hessian bituminized (CR1type ) bag to hold 50 kg of cement is 630 g. the massof a 6.~1~ paper bag to hold 50 kg of cement isapproximately 400 g and the mass of a polyethylenelined ( CR1 type ) jute bag to hold 50 kg of cemenis approximately 480 g.

8/12/2019 8112-OPC 43 Grade

7/20

IS 8112 : 1989

ANNEX A. .COMPOSITION OF THE TECHNICAL COMWTIEE

CEMENT AND CONCRETE SECTIONAL COMMITTEE, CED 2

Chdff?WlDR H. C. VISVESVARAYA

M embers

SHRI K. P. BANERIEESHRI HARISH N. MALANI ( illrernare )

SHRI S. K. BANERJ ~B

CHIEF ENQINEER j BDSHRI J . C. BASUR ( Aflernate )

CHIEF ENOINE ER DESIGNS )SUPERINTE NDINO NGINE ER S S )

( Alrernare )

CHIEF ENGINEER RESEARCH-CUM-DIRECTOR )

RESEARCH OFFICER ( CONCRETETECHNOLOGY ( Alrernare )

DIRECTORJ OINT DIRECTOR ( Alrernare )DIRECTOR

CHIE F RESEARCH OFFI CER ( AI rernura ).IRE CTOR ( C MDD-II )

DEPUTY DIRE CTOR ( C MDD-II )f, Alrernure )

SHRI V. K. GHANEKARSHRI S. GOPINATHSHRI A. K . GUPTASHRI J . SUN GUPTASHRI P. J . J AGUS

DR A. K. CHATTERJ EE AIrernure )

J OINT DIRE CTOR STANDARDS B S )/CB-I

J OINT DIRECTOR STANDARDS ( B dr S )/CB-II ( Alrernure )

SHRI N. G. J HISHRI R. L. KA POOR

SHRI R. K. SAXENA ( AIrernure )DR A. K. MULLICKSHRI G. K. MAJ UMDAR

SHRI P. N. M EHTASHRI S. K . MATHU R ( AIrernure )

SHRI NIRMAL SINGH

SHRI S. S. MI ~LA NI ( AIrernure )S RI S. N. PAL

SHRI BIMAN D.WWPTA ( AIrernure )SHRI R. C. PARAIE

L-r-COL R. K . SI N~H ( Airernure )SHRI 13. S. PASRI CHASHRI Y. R. PHULL

SHRI S. S. SEE HRA Alrernare )

DR MOHAN RAIDR S. S. REHSI ( Afternate )

SHRI A. V. RAMI NADR K. C. NA RAN ~ ( Alrernure )

SHRI G. RAMDAS

SHRI T. N. SUBBA RAOSHRI S. A. REDDI ( AIrernare

Representing

National Council for Cement and Building Materials, New Delhi

Larsen and Toubro Limited, Bombay

National Test House, Calcutta

Bhalcra Beas Management Board, Nangal Township

Central Public Works Department, New Delhi

I rr igation Department, Government of Punjab

A. P. Engineering Research L aboratories, Hyderabad

Central Soil and Matir ials Research Station, New Delhi

Central Water Commission, New Delhi

Structural Engineering Research Centre ( CSI R ), GhaziabadThe India Cements Limited, MadrasHyderabad I ndustries Limited, HyderabadNational Buil dings Organization. New DelhiThe Associated Cement Companies L td. Bombay

Research, Designs and Standards Organization ( Ministry ofRailways ), Lucknow

Indian Hume Pipes Co Limited, BombayRoads Wing ( Ministry of Transport ), Department of Surface

Transport, New Delhi

National Council for Cement and Building M aterials, New DelhiHospital Services Coosultaocy Corporation ( India ) Ltd.

New DelhiGeological Survey of India, Calcutta

Development Commissioner for Cement Industry ( Ministry ofI ndustry ). New Delhi

M.N . Dastur and Company Pr ivate Limited, Calcutta

Engineer-in-Chiefs Branch, Army Headquarters

Hi ndustan Prefab Limited, N ew DelhiIndian Roads Congress, New Delhi; und dentral Road Research

Institute ( CSI K ). New DelhiCentral Road Research Institute ( CSI R ), New DelhiCentral Building Research Institute ( CSI R ). Roorkee

Dalmia Cement ( Bharat ) L imited, New Delhi

Directorate General of Supplies and Disposals, New Delhi

Gammon India Limited, Bombay

8/12/2019 8112-OPC 43 Grade

8/20

IS 8112 : 1989

M embera

DR M. RAMAIAHD@A. G. MADH~VA RAO ( Alfernate )

SHRI A. U. R IJ HSIN~HANISHRI C. S. SHARMA -Alternate )

SECRETARYSHRI K. R. SAXENA Alternate )

SUPERINTENDINQ NGINEER DESIGNS

E~ECUTI ~ ENGI NEE R SMD DIVISION )( Alternate )

SHRI L. SWAR~OPSHRI H. BHATTACHARYA

( Alternate )SHRI S. K. GUHA THAKURTA

SHRI S.P. SANKARNARAYANAN( Alternate )

DR H. C. VISVESVARAYASHRI D. C. CHATURV~DI Alternate )

SHRI G. RAMAN,Direcror ( Civ Engg )

Representing.

Strucfuisii Engmeering Research Cenfte ( CSI R ), Madras

Cement Coiporatibn of Ilidia; Neti Delhi

Ct%tral Board of Irrigation and Power, New Delhi

Public Works Department, Government of Tamil Nadu

Orissa Cement Limited, New Delhi

Gannon Dunkerly & Co Ltd. Bombay

The Institution of Engineers ( India ), Calcutta

Director General, BIS ( Ex-officio Member )

SecretarySHRI N. C. BANDYOPADHYAY

J oint DireCtor (Civ Engg ), BIS

Cement, Pozzolana and Cement Additives Subcommittee, CED 2 : 1

Convener

DR H. C. V~SV~SVARAYA

ember s

National Council for Cement and Building Materials.New Delhi

DR A. K. MULLICKDR ( SHRIMATI S. LAXMI 3

( AI ternu fes to Dr H. C. Visvesvaraya )

SHRI S. K. BANERJ EE

SARI N. G. BASAKSHRI T. MADNFZSHWAR Affernafe )

SHRI SOMNATFZ ANFRJ EECHIEP ENOINEER RESEARPH-CUM-

DIRECTOR

National Teit House, CalcuttaDirectorate General of Technical Development, New Delhi

RUURCH OFFICER CT ) ( Alternate )SHRI N.. B. DE .QI c

SHRI J . K. ~PATEL Alternate )DIRECTOR

RESEARCH OPPICER Alternate )DIRE~~~~(C&MDDII)

De~un DIRE CTOR C t MDD II )( Al;ternufe )

SHRI R. K. GA~ANISHRI R. K. VAISHNAV~ Alternote )

SHRI J . SEN GLPTA

SHRI P. J . J AIXJ SDR A. K. CHA~TERJ EE hernate )

JOINT DIRECTOR, STANDARDS( B & S )/CB-I

J OINT DIRECTOR, STANDARDS( B &, )/CB-II ( Alternate )

SHRI R. L. KAPOOR

SHRI R. K. DA?TA ( Afternute )SHRI W. N. KARODE

SHRI R. KUNJ ITHAPATTAYSXRI G. K. MAJ UMDAR

Cement Manufacturers Association, BombayIrrigation Department, Government of Punjab

Gujarat Engineering Research Institute, Vadodara

Maharashtra Engineering Research Institute, Nasik

Central Water Commission, New Delhi

Shree Digvijay~Cement Co Ltd. Bombay

National Buildings Organization, New DelhiThe Associated Cement Companies Ltd. Bombay

Research, Designs and Standards Organization, Lucknow

Roads Wing (Ministry of Transport ) ( Department of SurfaceTransport ), New Delhi

The Hindustan Construction Co Ltd, BombayChettinad Cement Corporation Ltd, Poliyur, Tamil NaduHospital Services Consultancy Corporation ( India ) Lad,

New Delhi

6

8/12/2019 8112-OPC 43 Grade

9/20

.

Members

SHRI K. P. MQHIDEENSHRI NIRMAL SINGH

SHRI S. S. MICI LANI ( Alternate )SHRI Y. R. PH ULL

SHRI M. R. CHA-ITER I~E ( Alternate )

SHRI A. V. RAMANADR K. C. NARANO ( Alternate )

COL V. K. RAOSHRI N. S. GAL AND@ ( AIlernare )

SHRI S. A. RE DDI

DR S. S. RE HSIDR IRSHAD MASOOD ( Alternate )

SHRI A. U. RIJHSIN~HAN~SHRI M. P. SINGHSUPERINTENDING E NGINEER (D)

SIZNIOR DEPUT Y CH IE P ENO~NEE R( GENE RAL ) ( Alternafe )

SHRI L. SWAR~~PSHRI I-I. BHATTACHARYA ( Alrernute )

SHRI V. M. WAD

IS 8112 : 1989

Representing

Central Warehousing Corporation, I&w Delhi

Development Commissioner for Cement Industry ( Ministry ofIndustry )

Central Road Research Institute ( CSIR ), New Delhi

Dalmia Cement ( Bharat ) Ltd, New Delhi

Engineer-in-Chiefs Branch, Army Headquarters

Gammon India Ltd. BombayCentral Building Research Institute~( CSIR ), Roorkee

Cement Corporation of India Ltd, New DelhiFederation of Mini Cement Plants, New DelhiPublic Works Department, Government of Tamil Nadu

Orissa Cement Ltd. New Delhi

Bhilai Steel Plant, Bhilai

?

8/12/2019 8112-OPC 43 Grade

10/20

, I

Bureau efIn an Standards -*.-

.BIS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to pfomoteharmonious development of the activities of standardization, marking and quality certification of goods andattending to connected matters in the country.

Copyright

BIS has the copyright of all its publications. No part of these publications may be reproduced in any formwithout the prior permissicn in writing of BIS. This does not preclude the free use, in the course ofimplementing the standard, of necessary details, such as symbols and sizes, type or grade designations.Enquiries relating to copyright be addressed to the Director (Publication), BIS.

Review of Indian Standards

Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewedperiodically; a~standard along with amendments is reaffirmed when such review indicates that no changes areneeded; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Slandardsshould ascertain that they are in possession of the latest amendments or edition by referring to the latest issueof BIS Handbook and Standards Monthly Addition... \

This Indian Standard has been developed from Dot: No. CED 2 ( 4746 )

Amendments Issued Since Publication

Amend No. Date of Issue Text Affected

BUREAU OF INDIAN STANDARDSHeadquarters:

Manak Bhavan, 9 Bahadur Shah &far Marg, New Delhi 110002Telephones: 323 0131,323 33 75,323 94 02

Regional Offices:

Central : Manak Bhavan, 9 Bahadur Shah Zafar MargNEW DELHI 110002

Eastern : l/14 C.I.T. Scheme VII M, V.I.P. Road, ManiktolaCALCU?TA 700054

Northern : SC0 335-336, Sector 34-A, CHANDIGARH 160022

Southern : C.I.T. Campus, IV Cross Road, CHENNAI 600113

Western : Manakalaya, E9 MIDC, Marol, Andheri (East)MUMBAI 400093

Branches : AHMADABAD. BANGALORE. BHOPAL. BHUBANESHWAR.COIMBATORE. FARIDABAD. >GHAZIABAD: GUWAHATI.HYDERABAD. JAIPUR. KANPUR. LUCKNOW. NAGPUR.

. ,

Telegrams: Manaksanstha(Common to all offices

Telephon

32376 17,3233841

{ 33737 846 99,337 912526,337

1 600 380

1 23535 025 16,235 0439,235

832 92 95,832 78 832 78 91,832 78 9

PATNA. PUNE. THIRUVANANTHAPURAM.

Printed at Dee Kay Printers, New Delhi, Indi

8/12/2019 8112-OPC 43 Grade

11/20

AMENDMENT NO. 1 J ANUARY 1991TO

IS 8112 : 1989 43 GRADE ORDINARY PORTLAND

CEMENT -SPECIFICATION

Fi r st Revi si on )

Page 3, Chuse 9.2.1.1 ) - Insert the following new clausesafter 9.2.1 .l:

9.2.2 When cement is intended for export and if the purchaser sorequires, packing of cement may be done in bags other than those givenin 9.2 and 9,2.1 with an average net mass of cement per bag as agreed to

between the purchaser and the manufacturer.9.2.2.1 For this purpose the permission of the certifying authority shallbe obtained in advance for each export order.

9.2.2.2 The words FOR EXPORT and the average net mass of cement perbag shall be clearly marked in indelible ink on each bag.

9.2.2.3 The packing material shall be as agreed to between the supplierand the purchaser.

9.2.2.4 The tolerance requirements for the mass of cement packed inbags shall be as given in 9.2.1.1 except the average net mass which shallbe equal to or more than the quantity in 9.2.2.

(CED 2)

8/12/2019 8112-OPC 43 Grade

12/20

AMENDMENT NO. 2 NOVEMBER 1991TO

IS 8112 : 1989 43 GRADE ORDINARY PORTLANDCEMENT - SPECIFICATION

First Revision)

Page 4, clause B-l.2 ) - Substitute up to 25 tonnes for of 20 to 25tonnes.

(CED2) -Printed at Dee Kay Printers, New Delhi- 1 iO0 15, India.

8/12/2019 8112-OPC 43 Grade

13/20

AMENDMENT NO. 3 NOVEMBER 1993TO

IS 8112 : 1989 43 GRADE ORDINARY PORTLANDCEMENT - SPECIFICATION

First Revision)

[ Page 3, clause 9.2.1.1 ( see also Amendment No 1 )] - Substitute thefollowing for the existing matter:

9.2.2 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 massof cement per bag or drum as agreed to between the purchaser and themanufacturer.

9.2.2.1 For this purpose the permission of the certifying authority shall beobtained in advance for each export order.

9.2.2.2 The words FOR EXPORT and the average net mass of cement perbag/drum shall be clearly marked in indelible ink on each bag/drum.

9.2.2.3 The packing material shall be as agreed to between the manufacturerand the purchaser.

9.2.2.4 The tolerance requirements for the mass of cement packed inbags/drum shall be as given in 9.2.1.1 except the average net mass which shallbe equal to or more than the quantity in 9.2.2.

(CED2)Printed at Dee Kay Printers, New Delhi-l 10015, India.

8/12/2019 8112-OPC 43 Grade

14/20

AMENDMENT NO. 4 OCTOBER 1998TO

IS 8112 : 1989 43 GRADE ORDINARY PORTLANDCEMENT - SPECIFICATION

FkstRevEon)

Page , clause 94.1) - Substitute the following for the existing clause:

93.1 The average net mass of cement per bag may also be 25 kg, 10 kg, 5 kg,2 kg or 1 kg, subject to tolerances as given in 9.2.1.1 and packed in suitable bagas agreed to between the purchaser and the manufacturer.

Page 3, clause 93.1.1) - Substitute the following for the existing clause:

9.2.1.1 The number of bags in a sample taken for weighment showing a minuserror greater than 2 percent of the specified net mass shall not be more than5 percent of the bags in the sample. Also the minus error in none of such bags inthe sample shall exceed 4 percent of the specified net mass of cement in the bag.However, the average mass of the cement in a sample shall be equal to or morethan 25 kg, 10 kg, 5 kg, 2 kg or 1 kg, as the case may be.

( Page 4, clause B-1.2 ) - Substitute up to 25 tonnes@ 20 to 25 tonnes.

(CED2)

Repqraphy Unit E, New Delhi, India

8/12/2019 8112-OPC 43 Grade

15/20

AMENDMENT NO. 5 OCTOBER1999TO

IS 8112 : 1989 43 GRADE ORDINARY PORTLAND

CEMENT - SPECIFICATIONFirst Reviim)

Page 1, clause 5.1) -Insert the following after the clause:

5.2 Total chloride content in cement shall not exceed 0.1 percent by mass forcement used in structures other than prestressed concrete. For determination ofchloride content in cement, IS 12423 may be referred.

NOTE - For use in special structures like prestressed concrete, where chloride is a critical

parameter, the limit of chloride content shall be 0.05 percent and shall be required to bemeasured if desired by the purchaser.

[ Page 1, Table 1, Sl No. (iii), co1 3 ] -Substitute 3.ofor 2.

[ Page 1, Table 1, Sl N o. (iv), co1 3 ] - Substitute 6.0 or 6.

( Page 1, Table 1, Notes 3 and 4 ) - Delete.

(CED2)

Reprography Unit, BIS, New Delhi, India

8/12/2019 8112-OPC 43 Grade

16/20

AMENDMENT NO. 6 J UNE 2000TO

IS 8112 : 1989 43 GRADE ORDI NARY PORTLANDCEMENT - SPECIFI CATION

( F ir st Revbion )

Substitute net mass for average net mass wherever it appears in thestandard.

( Cover page 2, para 3 ofForaoord ) - Substitute the following for theexisting text:

Specific requirements of ordinary Portland cement for manufacture of railway

sleepers to be designated as 43-S grade are given in the standard in 5.2, 6.1,6.2.2, 6.3, 6.4 and 9.1. To differentiateit with normal grade, 43-S grade shallbe marked on the bags/packages for such cement in place of 43-S grade.

Page 1, clause 5 )- I laert a new clause 5.2 as follows:

5.2 Cement used for railway sleepers shall satisfy the followingchemical/mineralogical requirements and shall be designated as 43-S grade:

i) Magnesia, percent by mass - Not more than 5.0

ii) Tricalcium atuminate content, percent -Not more than 10.0iii) Tricalcium silicate, percent - Not less than 45

Page 1 lause 6.1) - Insert the following at the end of the clause:

For 43-S grade cement, the specific surface shall not be less than 370 m2/kg.

Page 1 abZe 1, Note 1 ) - Insert the following at the end:

The tricalcium silicate content C3S) is calculated by the formula:

C3S = 4.07 CaO - 7.60 Si02 - 6.72 A203 - 1.43 Fe203 - 2.85 SO3 (Page 2, clause 6.2.1.1) - Insert a new clause 6.2.2 as follows:

6.2.2 For 43-S grade cement, soundness of unaerated cement when tested by theLe-Chatelier method shall not have an expansion of more than 5 mm.

1

8/12/2019 8112-OPC 43 Grade

17/20

Anrend No. 6 to IS 0112 : 19X9

(Page 2, clause 6.3 ) - Insert the following under (a) :

Initial setting time for 43-S grade cement in minutes - Not less than 60.

Page 2, clause 6.4 ) - Insert the following as new para:

For 43-S grade cement, compressive strength at 168 f 2 h shall not be less than37.5 MPa .

( Page 2, cluctse 9.1, line 12 ) - Insert the following after 43 GradeOrdinary Portland cement:

or 43-S Grade Ordinary Portland Cement, whichever is applicable.

(CED2)

Reprography Unit, BIS, New Delhi, India

2

8/12/2019 8112-OPC 43 Grade

18/20

AMENDMENT NO. 7 DECEMBER 2003TO

IS 8112:1989 43 GRADE ORDINARY PORTLANDCEMENT SPECIFICATION

( Page 1, clauseexisting sentence:

First Reviswtt )

4.1, last sentence ) Substitute the following for

No material shall be added after burning, other than gypsum (natural ochemical) or water or both; performance improvers; and not more than onepercent of air-entraining agents or other agents including colouring agentswhich have proved not to be harmful. Limit of addition of performanireprovers shall be as follows and shall be inclusive of one percent additives a

mentioned above:

Perfimnanw [mprowr Percentage RequirementAddition Max

Fly ash 5 As per IS 3812 (Part 1)

Granulated slag 5 As per IS 12089

Silica fume 5 As per IS 15388

Limestone 5 CaCO~ content calculated from CaO content sfrdl not b

less than 75 percent when tested as per IS 1760 (Part 3)Rice husk ash 5 a) Reactive sitica shaIl not be less than 85 percent whe

tested as per IS 3812 (Part I)b) Pozzolanic Activity Index shall nor be less than 90

percent when tesIed as per 10 of 1727c) f...osson ignition sha t not be more than 8 percent wh

tested as per 1S 1727

a) Sificon dioxide (Sioz) phss ahsminium oxide Abo3plus iron oxide (Fc203) in percent by mass shall not& less than 95 percent when tested as per IS 1727

b) Loss on ignition shall not be more than 1 percentwhen tested as per IS 1727

c Total alkalis as sodium oxide (NazO) in percent bymass shall not be more than 0.6 percent when testedas per IS 4032

d) Particles retained on 45 micron N sieve ( wet sievinshall not be more than 1 percent when test as perIS 1727

Metakaoline 5

8/12/2019 8112-OPC 43 Grade

19/20

Amend No. 7 to IS 8112:1989

If a combination of above performance improvers is added, the maximum limitof addition shall be 5 percent.

[ Page 1, Table 1, S1 No. iii see also Amendment No. 5 ) ] Substituthe following for the existing matter:

S1No. Characteristic Requirement(1) (2) (3)iii) Insoluble residue, percent a) [n case no flyash, silica fume, rice husk ash and

by mass metakaoline is added Not more than 3.0b) In case of addition of fly ash and/or silica fume an~or

rice husk ash and/or metakaoline Not more than 5.0

( Page 2, clause 6.3.1. line 6 Substitute less than for the words nless than.

( Page 2, clause 9.1, last sentence Insert the following sentence beforthe existing sentence:

Bags shall also be marked with the type and the percentage of performanceimprovers added.

( Page 4, Annex A ) Insert the following matter at the appropriate place:

IS No. Title

1727:1967 Methods of test for pozzolanic materials st revision

1760 (Part 3): Methods of chemical analysis of limestone, dolomite and allied1992 materials : Part 3 Determination of iron oxide, alumina, calcium

oxide and magnesia (first revision

3812 Part 1 ): Pulverized fuel ash Specification : Part I For u e w2003

12089:1987

15388:2003

CED2

pozzolana in cement cement mortar and concrete (seconrevision

Granulated slag for the manufacture of Portland slag cement Specification

Silica fume Specification

8/12/2019 8112-OPC 43 Grade

20/20

AMENDMENT NO. 8 MAY 2005

IS 8112:1989 43t iADE ORDINARYPORTLAND CEMENT SPECIFICATION

First Revisiun

Page 2, clause 8.2 Insert the following new clause after clause 8.2

8.3 In case performance improvers are added, the manufacturers certificateshall also indicate the type and percentage of performance impro~ers added.

[ Page 2, clause 9.1, last sentence see also Amendment No. 7) ] Substitute the following for the existing sentence before the last sentence:

In case performance improvers are added, the bags shall also be markedPermitted performance improvers are added.

(CED2)Reprography Unit, BIS, New Delhi, India