IS 516 (1959): Method of Tests for Strength of Concrete

1 Disclosure to Promote the Right To InformationWhereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public. ! $ ' + - Satyanarayan Gangaram Pitroda Invent a New India Using Knowledge 0 1 ' 5 Jawaharlal Nehru Step Out From the Old to the New 1 + , 1 + Mazdoor Kisan Shakti Sangathan The Right to Information, The Right to Live !

2 > 0 B Bhart hari N ti atakam Knowledge is such a treasure which cannot be stolen Invent a New India Using Knowledge IS 516 (1959): Method of Tests for Strength of Concrete [CED 2: cement and Concrete ]Gr6IS : 516 - 1959( Reaffirmed2004 )IndianStandardMETHODS OF 'rESTS~'ORSl~RENGTIIOFCONCRErI~EEighteen thReprint JlJNE 2006( Incorporating Amendment No 1 and Including Amendment No2) 620 17 JCopyright197~8 UREAU 0 FINI)IAN Sl'AN]).~I~I) SMANAK0111\VA N()n"II1\DIIR\ HAIILA I \R~11\R(JNI"1>11 III110002 December1959 IS:51&-1959 IndianStandardMETHODS OF Tests FORSTRENGTH OF CONCRETETheConcreteAssociationofIndia, IIndia).CalcuttaCementand Concrete SectionalCommittee,BDC 2 Cui"'"f" ,~ ). ~DASSHRIG1!ORGEOONlIIEIISKRlS. R.}IXHKAC entralHoardotIrrigationetPower(!lfimstry 01 Irrigation&:Power)Engineer-in-Chief'sBra nch, (;encralojSupplies&:Disposals(Ministryof Works,Hou-ang&:Supply) ~.

3 LrchInstitute(CSIR).Roarke"SHIIJC. \DILKA&(Alt"nale)SHklC: ~ll<tl~, 'AGAII(Altenulte) \:\GADITheAssociatedCementCompaniesLtd, (:t(i,"mll/!)SHillP. \OMR. ~ \IIlESGeologicalSurvevofIndsa,CalcuttaCentralWattr8; CommissionI!lfinistrv"IIrrigatron&Power)fAlltmate) ""Co,BombayCentralRoadResearchInstituteICSTfl).Ne\\ "Cakutta(Alternat )GammonIndiaLtd,Bombav,andInman}{oad~Conzress,New !tBPRI l> , }{IJHWAl>lCentralPublic:Work., (Altfrl/fJle)SHMINm,\R(HANDRA(tOYDalrmaC ement(Bharat)Ltd, \'o\RllIAlttmaf,')S1l1l1 SAllUI'SINGlINationalBuildingsOrganivatr ou(~1inistrvofWor"~.Housing'&SUT'pl)\DBP UTY1)11t1tC'COM(~1.\ThIU,\L\(AU"nale)(Co nlltliledOftpatti2 )BlJR IS :516-1959(Continuedfrompage1) ~ ~ ~ (AltrrnatC')SHIHJ{. ,Design&StandardizationOrgantaation( \'ARMAtAttrrnatevDr< \1."~(I::r-olfinn)J>Uf"ctOT,IndianStandardsInstitutionvrrret arvSHkjt.}

4 \NnRA~ <ADeputyDirector(Bldg),IndianStandardsInstt-tution(OJUft'IU' ,BD(~2: ,BombavSHRJSARlTPSINGHSURII,. ! J 'S,UHJ~. ~,I J. BII \ (~\v \ x \~,SURI) \'..IJA,(.H<J{)1J< }{AZRAT>I( !'TheASSO ciatedCementCompaniesLtd.,BombayEnzineer -in-Chief'sBranch,ArmyHeadquartersCentra lPublicWorksDepartment(Alternate)Enginee ringResearchLaboratories,Hyderabad(;eolo gicalSurveyofIndia,CalcuttaCentralWater& PowerCommission(MinistryofIrrrgation&Pow er)~HJU(.L.;\.IY1-:~ <TheConcreteAssociationofIndia, }:ATt"PublicWorksDepartment, \ (Alternate)~ ~ICOLAIJ>E!->GammonIndiaLtd.,BombayDRJ< (MinistryofIrrtgation&Power)NationalBuildingsOrganisation( ) ~.\V\NM"~(Alternatt) ~)-f>\RoadsWing,MinistryofTransport&:Communic a-tionsResearch,Design&StandardisationOr ganization(Ministr~TofRailways)2 :1959 METHODSOFTESTSFORSTRENGTHOFCONCRETE(Page 6, )-Substitutethefollowingfortheexistingcl ause:' Cube Moulds-Themouldshallbeof150mmsizeconform ingtoIS J0086 :1982*.))))

5 '(Page6 ) -Insertthefollowingfoot-noteatthebottom: '.Specificationformouldsforusein Tests ofcementandconcrete.'(Page7, )-Exceptthelastsentence,substitutethefol lowingfortheexistingmatter:'Thecylindric almouldsshallbeof150 romdiameterand300 mmheightconformingtoIS 10086 : 1982*.'(Page" )-Substitutethefollowingfortheexistingcl ause:' (a)ofIS 10086 :1982 .'(Page7 ) -Insertthefollowingfoot-noteatthebottom: '*Specificationformouldsfor use in Tests of cement andconcrete:(Pages15anti16, ) -Substitutethefollowingfortheexistingcla use:' IS 10086 :1982 .Inassemblingthemouldfor usc, topreventadhesionoftheconcrete.'(Page15 ) -Insertthefollowingfoot-noteat thebottom:-'Specificationformouldsforuse Intc",t~ :(Page16, ) -Substitutethefollowingfor theexistingclause:' ! (b)ofIS10086:1982 .'(CEO2) IS:516-1959 Indian ThisIndianStandardwasadoptedbytheIndianS tandardsInstitutionon10 November1959, ,thefreshcon-creteandthehardenedconcrete is simple, beenpreparedwiththisobjectin view andprovidesaguidetothedeterminationofcom pressivestrength, thepreparationofthisstan-dardhastakenint oconsiderationthe viewsofconcretespecialists,testingauthor ities,consum&sandtechnologistsandhasrela tedthestandardtothepracticesfollowedinth ecountryinthisfield.

6 The need forinter-nationalco-ordinationbetweensta ndardsprevailingindifferentcountriesofth eworld has also the Sec-tionalCommitteetoderiveassistancefro mthepublishedstandardsandpublicationsoft hefollowingorganizations:BRITISHSTANDARD SINSTITUTIONAMERICANSOCIETYFORTESTINGMAT ERIALSAMERICANCONCRETEINSTITUTECANADIANE NGINEERINGSTANDARDSASSOCIATIONRESEARCH,D ESIGN&STANDARDIZATIONl)RGANIZATION,MINIS TRYOFRAILWAYS, ofSamplingandAnalysisof Concrete (IS:1199-1959)is , thisstandardrequiresreference tothefollowingIndianStandards:-IS:269-19 58 SPECIFICATIONFORORDINARY, rapid - hardening ANDLowHEATPORTLANDCEMENT(Revised) IS:516-1959 15 :383 1952 SPECIFICATIONFORCOARSEANDFINEAGGREGATESF ROMNATURALSOURCESFORCONCKETEtIS:455-1953 SPECIFICATIONFORPORTLANDBLASTFURNACESLAG CEf\fENT*IS ~ON CRETEFORGENERALBt:ILlJINGCONsTRucnoN(Rev ised)-IS=460-1953 SPECIFICATIO~ , ,itshallbetakenas , ,the atestoranalysis,shallberoundedoff inaccordancewlth IS:2-1949 RulesforRoundingOftNumericalValues, Thisstandardisintendedchieflytocoverthet echnicalprovisionsrelatingtothetestingof Concrete ,anditdoes notincludeallthenecessaryprovisionsof ;forthedeterminationofcompressivestrengt h, ofaR~re~atedoesnotexceed38 ;n~c-rcv,scd:---iSecond' ~\'; ,\el ondrevisionJs~uedInJ9M.

7 Asmallportiontakenfromeachof anumberof bag-, '~ Allmaterialsshallbebroughttoroomtemperat ure,preferably27 ' 3~CbeforeL( 'IlClngthetl~:')t~.Thecementsamples,onar rivalatthelaboratory,<hallbetholoughlymixeddryeitherhyhandorinasuitablemixerillsuchamannerastoensurethegreatestpossibleblendinganduniforrnitvintllt\ <hallthenbestoredinadryplace, (lt~"'lrt'rlgradingandshallbe ~gregateshallbeseparatedintotint-andcoarsefractionsandrecombinedfor eachconcretebatchinsuchamannerastoproduceth~ ~Sieve480shallbenormallyusedforseparatingtht>fineandcoarsefrac-tions,butwherespecialg radingsarebeinginvestigated,Lothfinean-I coarsefractionsshallb furtherseparatedintodifferentsizes, ,including\\a{pr,inconcretemixesusedford eterminingthesuitabilitvofthematerialsav ailable,shallbesimilarin allrespectstothoseto beenlployed111th~A'ork.\Vh(~rctheproport ionsoftheingredientsoftheconcrete(i~used 'Inthesitearetobespecifiedbyvolume,theys hallbecalculatedtrurntheproportion-,bywe ightused111thetestcubesandtheunit\\t' ,each<izcofaggregatt",andwaterforeachbat chshallb determinedby\\'f l~ht,to anaccuracyof0 ,or pre-ferably,in alaboratorybatchmixer,insuchamanneras toavoidlossofwaterorothr-rmaterials, 'ofsuchc1SJ7eastoleaveabout10percentexce ssaftermouldingthedesiredIH1 Jll0c.)))}

8 Roftestspecimens, "'achine1\'1IX'''g--Whenthernixmgdrum1:; (')loader,allthemixingwatershallbeintrod ucedintotht'drnmhpfol~thesolidmaterials: theskipshallbeloadedwithaboutone-haltott 11, coarseaggregate,thenwiththefineaggregate ,thenwiththecementandhll~lllywiththerema iningcoarseaggregateontop.(If all in-agfZl~gatt ti~used,theskipshallbeloadedfirstwithabo utone-halfoftheag~r~gatrthenwiththecemen tandfinallywiththeremainingag~rt"'~att'o ntop.)"'herethemixingdrumishand-loadedit shallhechargedwiththt'drymaterialsin asimilarmanner, ofmixingshalls IS:516-1959benotlessthan2 minutesafterallthematerialsare inthedrum, , awater-tight,non-absorbentplatformwitha shovel,trowelorsimilarsuitableimplement, usingthefollowingprocedure:a)Thecementan dfineaggregateshallbemixeddryuntilthemix tureisthoroughlyblendedandisuniformin colour,b) Thecoarsedggregateshallthenbeaddedand mixedwiththecementandfineaggregateuntilt hecoarseaggregateisuniformlydistributedt hroughoutthebatch,andc)

9 Thewatershallthenbeaddedandtheentirebatc hmixeduntiltheconcreteappearsto ,becauseoftheadditionofwaterinincrements whileadjustingtheconsistency,thebatchsha ll bediscardedanda betestedforconsistencyimmediatelyaftermi xing,byone istakentoensurethatnowaterorothermateria lislost,theconcreteused fortheconsistencytestsmaybe asshortaspossibleyetsufficienttoproducea notexceed2 ern, 10 em cubesmaybeusedas twice 15 em indiameterand30 ofaggregateofnotlessthan3 to 1,exceptthatthediameterofthespecimen shall benotlessthan7 5 em formixturescontaining~~gregat~morethan5 percentofwhich isretainedon Moulds-'Themouldshall be otmetal,preferablysteelorcastiron, tofacilitatetheremovalofthemouldedspecim enwithoutdamage,andshall be ,when it isassembledreadyforuse,thedirnensionsand internalfaces shall beaccuratewithinthefoJlowinglimits:'Theh eightofthemouldandthedistancebetweenoppo sitefacesshallbethespecified size+0 2 IS:516-1959internalfacesandbetweenintern alfacesandtopandbottomplanesofthemouldsh allbe 90 +0-5.

10 Theinteriorfaces ofthemouldshallbeplanesurfaceswithapermi ssiblevariationof 0 03 shall heprovidedwithametalbaseplatehavinga baseplateshall be ofsuchdimensionsastosupportthe mouldduringthefillingwithoutleakageandit shallbepreferablyattachedto themouldbyspringsor screws, ,bothduringthefillingandonsubsequenthand lingofthefilledmould, use, thejointsbetween thesectionsofmouldshallbethinlycoatedwit hmouldoilandasimilarcoatingofmouldoilsha llbeappliedbetweenthecontactsurfacesofth ebottomofthemouldandthebaseplateinordert o ensurethatnowaterescapesduringthefilling . Theinteriorsurfacesoftheassembledmouldsh allbethinlycoatedwithmouldoil topreventadhesionof ofmetalwhichshallbenotlessthan3 beingopenedlongitudinallytofacilitaterem ovalofthespecimenandshallbt:providedwith a meansofkeepingitclosed ".. aplanesurface,perpendiculartotheaxisofth emould,bymorethan0 05 rnm.