Designation:D4842–90(Reapproved2001)StandardTestMethodforDeterminingtheResistanceofSolidWastestoFreezingandThawing1ThisstandardisissuedunderthefixeddesignationD4842;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversproceduresfordeterminingmateriallossesproducedbyrepeatedfreezingandthawingofsolidwastespecimens.Italsocoversthevisualobservationofthedisintegrationofsolidspecimens.1.2Thistestmethodintendsthatthematerialusedintheprocedurebephysically,chemically,andbiologicallyrepresen-tative,henceitdoesnotaddressproblemsasaresultoftheinhomogeneityofspecimens.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:C305PracticeforMechanicalMixingofHydraulicCementPastesandMortarsofPlasticConsistency2D2216TestMethodforLaboratoryDeterminationofWater(Moisture)ContentofSoilandRock33.SignificanceandUse3.1Thistestmethodisintendedfortheevaluationofthefreezingandthawingresistanceofmonolithic,solid,solidified/stabilizedwastesunderthetestingconditionsofthistestmethod.3.2Thistestmethodmaybeusedforthecomparisonoffreezingandthawingresistanceofwastes.3.3DatatabulatedinthechartsshowninFigs.1-3maybeusedtoobserveirregularitiescausedbyinhomogeneityofspecimensorcomparisonofmassloss-cyclerelationsofdifferentwastes,orboth,aswellastomeasuremethod-relatedweightlossessuchasmatrixdissolution.4.Apparatus4.1DisposableMolds,44-mminsidediameterby74-mminlength.4.2BalanceorScale,withacapacityatleast50%greaterthantheweightofthespecimenandbeaker,andasensitivityof0.01g.4.3DryingOven,athermostaticallycontrolleddryingovencapableofmaintainingatemperatureof...
