Designation:D6489−99(Reapproved2012)StandardTestMethodforDeterminingtheWaterAbsorptionofHardenedConcreteTreatedWithaWaterRepellentCoating1ThisstandardisissuedunderthefixeddesignationD6489;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodprovidesaprocedureforthedetermi-nationofthewaterabsorptionbyacoreofconcretetakenfromasurfacetreatedwithawaterrepellent.1.2Theintendeduseofthewaterrepellentcoatingistoreducetheamountofwaterthatabsorbsintothesubstrate.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C42/C42MTestMethodforObtainingandTestingDrilledCoresandSawedBeamsofConcreteD1193SpecificationforReagentWaterD1763SpecificationforEpoxyResinsD3924SpecificationforEnvironmentforConditioningandTestingPaint,Varnish,Lacquer,andRelatedMaterialsE145SpecificationforGravity-ConvectionandForced-VentilationOvensE898TestMethodofTestingTop-Loading,Direct-ReadingLaboratoryScalesandBalances3.SummaryofTestMethod3.1Thespecimenisdriedtoaconstantweightandtheportionsofthespecimennottreatedwiththewaterrepellentaresealedwithanimpervioussealingmaterial.Thespecimensareweighedandimmersedinwater.Thespecimensareremovedfromthewater,weighed,andapercentwaterabsorp-tioniscalculated.4.SignificanceandUse4.1Researchersinthefieldofwaterrepellentcoatingshaverecognizedtheneedforastandardizedtestfordeterminingtheperformanceofwaterrepellentsappliedtostructuresinthefield.Manycoatingmanufacturer’ssupplywarrantiesfortheirproductsbasedonmaintainingaspec...
