Designation:C1293−08b(Reapproved2015)StandardTestMethodforDeterminationofLengthChangeofConcreteDuetoAlkali-SilicaReaction1ThisstandardisissuedunderthefixeddesignationC1293;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversthedeterminationofthesus-ceptibilityofanaggregateorcombinationofanaggregatewithpozzolanorslagforparticipationinexpansivealkali-silicareactionbymeasurementoflengthchangeofconcreteprisms.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Nootherunitsofmeasurementareincludedinthisstandard.Whencombinedstandardsarecited,theselectionofmeasurementsystemisattheuser’sdiscretionsubjecttotherequirementsofthereferencedstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.(Warning—Freshhydrauliccementitiousmixturesarecausticandmaycausechemicalburnstoskinandtissueuponprolongedexposure.2)2.ReferencedDocuments2.1ASTMStandards:3C29/C29MTestMethodforBulkDensity(“UnitWeight”)andVoidsinAggregateC33SpecificationforConcreteAggregatesC125TerminologyRelatingtoConcreteandConcreteAg-gregatesC138/C138MTestMethodforDensity(UnitWeight),Yield,andAirContent(Gravimetric)ofConcreteC143/C143MTestMethodforSlumpofHydraulic-CementConcreteC150SpecificationforPortlandCementC157/C157MTestMethodforLengthChangeofHardenedHydraulic-CementMortarandConcreteC192/C192MPracticeforMakingandCuringConcreteTestSpecimensintheLaboratoryC227TestMethodforPotentialAlkaliReactivityofCement-AggregateCombinations(Mortar-BarMethod)C289TestMethodforPotentialAlkali-SilicaReactivityofAggregates(ChemicalMethod)C294DescriptiveNomenclatureforConstituentsofCon-creteAggregatesC...
