Designation:D7005/D7005M−16StandardTestMethodforDeterminingtheBondStrength(PlyAdhesion)ofGeocomposites1ThisstandardisissuedunderthefixeddesignationD7005/D7005M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Ithasbeenwidelydiscussedintheliteraturethatbondstrengthofflexiblemulti-plymaterialsisdifficulttomeasurewithcurrenttechnology.Theaboveisrecognizedandaccepted,sinceallknownmethodsofmeasurementincludetheforcerequiredtobendtheseparatedlayers,inadditiontothatrequiredtoseparatethem.However,usefulinformationcanbeobtainedwhenonerealizesthatthebendingforceisincludedandthatdirectcomparisonbetweendifferentmaterials,orevenbetweenthesamematerialsofdifferentthickness,cannotbemade.Also,conditioningthataffectsthemodulioftheplieswillbereflectedinthebondstrengthmeasurement.1.2Thisindextestmethoddefinesaprocedureforcompar-ingthebondstrengthorplyadhesionofgeocomposites.Thefocusisongeotextilesbondedtogeonetsorothertypesofdrainagecores;forexample,geomats,geospacers,etc.Otherpossibleusesaregeotextilesadheredorbondedtothemselves,geomembranes,geogrids,orotherdissimilarmaterials.Variousprocessescanmakesuchlaminates:adhesives,thermalbonding,stitchbonding,needling,spreadcoating,etc.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Specificprecau-tionarystatementsaregivenin11.1.1.2.ReferencedDocuments2.1ASTMStandards:2D76...
