Designation:D8462−22StandardTestMethodforCyclicPlateLoadTeststoEvaluatetheStructuralPerformanceofRoadwayTestSectionswithGeosynthetics1ThisstandardisissuedunderthefixeddesignationD8462;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisstandardtestmethodoutlinestheprocedureusedtodeterminetheperformanceofunpavedandpavedroadwaycrosssections,withandwithoutgeosynthetics,thatarebuiltinacontrolledmannerandtestedusingastationary,cyclicloadappliedtothesurfacetosimulatetraffic.1.2Testsectionperformancefromthesetestsisnormallycalculatedasafunctionoflifeextension,butcanalsobedeterminedbasedonstructuralimprovement.Lifeextensionisrelatedtothenumberofloadcyclesthatcanbeaccommodatedbyaparticularconfigurationwhencomparedtoasimilarlyconstructedcontrol.Structuralimprovementsarebasedonelementalorsystem-widestiffnessincreases.1.3Thecyclicplateload(CPL)testisintendedtobeaperformancetestconductedascloselyaspossibletoas-builtunpavedandpavedroadwaycrosssections.Ithasbeenusedasatooltocomparedifferentgeosynthetics;soiltypes,strengths,andthicknesses;andconstructionproceduresforavarietyofpavementapplications.1.4Units—ThevaluesstatedinSIunitsaretoberegardedasstandard.Valuesinparenthesesareforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandard...
