Designation:D5101−12(Reapproved2017)StandardTestMethodforMeasuringtheFiltrationCompatibilityofSoil-GeotextileSystems1ThisstandardisissuedunderthefixeddesignationD5101;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversperformancetestsapplicablefordeterminingthecompatibilityofgeotextileswithvarioustypesofwater-saturatedsoilsunderunidirectionalflowconditions.1.2Twoevaluationmethodsmaybeusedtoinvestigatesoil-geotextilefiltrationbehavior,dependingonthesoiltype:1.2.1Forsoilswithaplasticityindexlowerthan5,thesystemscompatibilityshallbeevaluatedperthisstandard.1.2.2Forsoilswithaplasticityindexof5ormore,itisrecommendedtouseTestMethodD5567(‘HCR,’HydraulicConductivityRatio)insteadofthistestmethod.1.2.3Iftheplasticityindexofthesoiliscloseto5,theinvolvedpartiesshallagreeontheselectionoftheappropriatemethodpriortoconductingthetest.Thistaskmayrequirecomparisonofthepermeabilityofthesoil-geotextilesystemtothedetectionlimitsoftheHCRandGradientRatioTest(GRT)testapparatusbeingused.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesinparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D123TerminologyRelatingtoTextilesD422TestMethodforParticle-SizeAnalysisofSoils(With-drawn2016)3D653TerminologyRelatingtoSoil,Rock,andContainedFluidsD698TestMethodsforLaboratoryCompactionCharacter-isticsofSoilUsingStandardEffort(12,400ft-lbf/ft3(600kN-m/m3))D737TestMethodforAirPermeabilityofTextileFabricsD854TestMethodsforSpecificGravityofSoilSolidsbyWaterPycnometerD1587PracticeforThin-WalledTubeSampl...
