Designation:D4792/D4792M−13(Reapproved2019)StandardTestMethodforPotentialExpansionofAggregatesfromHydrationReactions1ThisstandardisissuedunderthefixeddesignationD4792/D4792M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofpotentialvolumeexpansionofdensegradedcompactedaggregatesthatcontaincomponentssusceptibletohydrationandconsequentvolumeincrease,suchasthefreecalciumandmagnesiumoxidesthatoccurinsomeindustrialby-products.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.NOTE1—SievesizeisidentifiedbyitsstandarddesignationinSpeci-ficationE11.Thealternativedesignationgiveninparenthesesisforinformationonlyanddoesnotrepresentadifferentstandardsievesize.1.3Thetextofthisstandardreferencesnotesandfootnoteswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2C702/C702MPracticeforReducingSamplesofAggregatetoTestingSizeD75/D75MPracticeforSamplingAggregatesD...