Designation:D5262−07(Reapproved2012)StandardTestMethodforEvaluatingtheUnconfinedTensionCreepandCreepRuptureBehaviorofGeosynthetics1ThisstandardisissuedunderthefixeddesignationD5262;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodisintendedforuseindeterminingtheunconfinedtensioncreepandcreeprupturebehaviorofgeo-syntheticsatconstanttemperaturewhensubjectedtoasus-tainedtensileloading.Thistestmethodisapplicabletoallgeosynthetics.1.2Thetestmethodmeasurestotalelongationofthegeo-synthetictestspecimen,fromthetimeofloading,whilebeingmaintainedataconstanttemperature.Itincludesproceduresformeasuringthetensioncreepandcreeprupturebehavioratconstanttemperatureofconditionedgeosyntheticsaswellasdirectionsforcalculatingtensioncreepandcreeprupturecurves.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D123TerminologyRelatingtoTextilesD1776PracticeforConditioningandTestingTextilesD2990TestMethodsforTensile,Compressive,andFlexuralCreepandCreep-RuptureofPlasticsD4354PracticeforSamplingofGeosyntheticsandRolledErosionControlProducts(RECPs)forTestingD4439TerminologyforGeosyntheticsD4491TestMethodsforWaterPermeabilityofGeotextilesbyPermittivityD4595TestMethodforTensilePropertiesofGeotextilesbytheWide-WidthStripMethodD6637TestMethodforDeterminingTensilePropertiesofGeogridsbytheSingleorMulti-RibTensileMethodE6TerminologyRelatingtoMethodsofMechanicalTesting3.Terminology3.1Definitions—Fordefinitionsofmanytermsusedinthistestmethod,...
