Designation:D6449−99(Reapproved2015)StandardTestMethodforFlowofFineAggregateConcreteforFabricFormedConcrete(FlowConeMethod)1ThisstandardisissuedunderthefixeddesignationD6449;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversaprocedure,usedbothinthelaboratoryandinthefield,fordeterminingthetimeofeffluxofaspecifiedvolumeofthefineaggregateconcretethroughastandardizedflowconeandusedforfabricformedconcrete(FFC);however,thetestmethodmayalsobeusedforotherfluidconcrete.1.2ItisforusewithfineaggregateconcretecontainingfineaggregateasdefineinSpecificationC33.1.3Thistestmethodisintendedforusewithfineaggregateconcretehavinganeffluxtime9to15s.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C33SpecificationforConcreteAggregatesC39/C39MTestMethodforCompressiveStrengthofCylin-dricalConcreteSpecimensC94/C94MSpecificationforReady-MixedConcreteC109/C109MTestMethodforCompressiveStrengthofHydraulicCementMortars(Using2-in.or[50-mm]CubeSpecimens)C1064/C1064MTestMethodforTemperatureofFreshlyMixedHydraulic-CementConcrete3.SummaryofTestMethod3.1Thetimeofeffluxofaspecifiedvolumeoffineaggregateconcretefromastandardizedflowconeismeasured.4.SignificanceandUse4.1Thistestmethodisapplicabletothedeterminationofthefluidityofvariousfluidfineaggregateconcretemixtures.5.Interferences5.1Thepresenceofsolidparticlesretainedonthe9.53mm(3⁄8in.)sieveorlumpsofunmixedmaterialinthefineaggregatemaycausethefineaggregateconcretetoflowunevenlythroughthedischargetubeoftheflowconeorstoptheflowcomple...
