BS 6073-1-1981 Precast concrete masonry units. Specification for precast concrete masonry units

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1、BRITISHSTANDARDBS6073-1:1981IncorporatingAmendmentNos.1,2and3Precastconcretemasonryunits—Part1:SpecificationforprecastconcretemasonryunitsICS91.100.30

 
 Licensedcopy:PONTYPRIDDCOLLEGE,29/02/2008,UncontrolledCopy,©BSIBS6073-1:1981

2、CommitteesresponsibleforthisBritishStandardThepreparationofthisBritishStandardwasentrustedbyTechnicalCommitteeB/519,Masonryandassociatedtesting,toSubcommitteeB/519/1,Masonryunits,uponwhichthefollowingbodieswererepresented.AutoclavedAeratedConcreteProductsAssociationBrickDevelopmentAssoci

3、ationBritishCeramicResearchLtd.BritishCivilEngineeringTestEquipmentManufacturers’AssociationBritishPrecastConcreteFederationLtd.ConcreteBlockAssociationDistrictSurveyorsAssociationLocalAuthorityOrganizationsMortarIndustryAssociationNationalHouse-BuildingCouncilOfficeoftheDeputyPrimeMinis

4、ter—BuildingRegulationsDivisionOfficeoftheDeputyPrimeMinister—representedbytheBuildingResearchEstablishmentStoneFederationThisBritishStandard,havingbeenpreparedunderthedirectionoftheCement,Gypsum,AggregatesandQuarryProductsStandardsCommittee,waspublishedundertheauthorityoftheExecutiveBoa

5、rdandcomesAmendmentsissuedsincepublicationintoeffecton31July1981Amd.No.DateofissueComments©BSI29August20033944March1982ThefollowingBSIreferences4462February1984relatetotheworkonthisstandard:CommitteereferenceB/519/11452329August2003IndicatedbyasidelineDraftforcomment79/10450DCISBN0580121

6、895Licensedcopy:PONTYPRIDDCOLLEGE,29/02/2008,UncontrolledCopy,©BSIBS6073-1:1981ContentsPageCooperatingorganizationsInsidefrontcoverForewordii1Scope12References13Definitions14Bindersandbinderconstituents25Aggregates26Admixtures27Chloridecontent28Externalshellthicknessofblocks29Dimensional

7、deviations310Strength311Dryingshrinkage312Certificateofcompliance313Independenttesting414Identificationofmasonryunits4AppendixAMeasurementofdimensions5AppendixBDeterminationofcompressivestrength8AppendixCDeterminationoftransversestrength11AppendixDDeterminationofdryingshr