【英文标准名称】:StandardTestMethodforDeterminingShort-TermCompressionBehaviorofGeosynthetics
【原文标准名称】:土工合成织物短期压缩处理测定的标准试验方法
【标准号】:ASTMD6364-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D35.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:复合材料;压缩;变形;标记;塑料;试验方法
【英文主题词】:compression;deformation;geocomposite;indextest;yieldpoint
【摘要】:Thecompressionbehaviortestforgeosyntheticsisintendedtobeanindextest.Itisanticipatedthattheresultsofthecompressionbehaviortestwillbeusedtoevaluateproduct.Theresultsoftheanalysesmayalsobeusedtocomparetherelativecompressiveyieldpointsofmaterialsthatexhibitadetectablecompressiveyieldpoint.Itisanticipatedthatthistestwillbeusedforqualitycontroltestingtoevaluateuniformityandconsistencywithinalotorbetweenlotswheresamplegeometryfactors(forexample,thickness)ormaterialsmayhavechanged.Note18212;Thisisaone-dimensionaltestforcompressiveloadingofageosynthetic(s)inoneplane.5.1.1Thecompressiveyieldpointofgeosyntheticsmaybeevaluatedfromthestress/strainrelationship.Manymaterialsexhibitcompressivedeformationbutmaynotshowadistinctcompressiveyieldpoint.Thistestmethodcanbeusedtoevaluatetheshort-termstress/strainbehaviorofgeosyntheticsundercompressivestresswhileloadedataconstantrateofdeformation.Thistestmethodmaybeusedforacceptancetestingofcommercialshipmentsofgeosyntheticsbutcautionisadvisedbecauseinterlabtestingisincomplete.5.3.1Inthecaseofadisputearisingfromdifferencesinreportedtestresultswhenusingthistestmethodforacceptancetestingofcommercialshipments,thepurchaserandthesuppliershouldconductcomparativeteststodetermineifthereisstatisticalbiasbetweentheirlaboratories.Competentstatisticalassistanceisrecommendedfortheinvestigationofbias.Asaminimum,twopartiesshouldtakeagroupoftestspecimensfrommaterialshippedtotheproject.Thetestspecimensshouldthenberandomlyassignedinequalnumberstoeachlaboratoryfortesting.TheaverageresultsfromthetwolaboratoriesshouldbecomparedusingtheStudentrsquo;t-testforunpaireddataandanacceptableprobabilitylevelchosenbythetwopartiesbeforethetestingisbegun.Ifbiasisfound,eitheritscausemustbefoundandcorrectedorthepurchaserandsuppliermustagreetointerpretfuturetestresultsinthelightoftheknownbias.1.1Thistestmethodcoverstheproceduresforevaluationofthedeformationsofageosyntheticorcombinationofgeosynthetics(thatis,geocomposite(excludinggeotextiles,geomembranes,andgeosyntheticclayliners))undershort-termcompressiveloading.Thistestmethodisstrictlyanindextestmethodtobeusedtoverifythecompressivestrengthconsistencyofagivenmanufacturedgeosynthetic(s).Resultsfromthistestmethodshouldnotbeconsideredasanindicationofactualorlong-termperformanceofthegeosynthetic(s)infieldapplications.1.2Sincethesegeosyntheticsmayexperiencemuti-directionalcompressiveloadingsinthefield,thistestmethodwillnotshowactualfieldperformanceandshouldnotbeusedforthisspecificobjective.Theevaluatoroftheresultsshouldalsorecognizethatthedeterminationoftheshort-termsingleplanecompressivebehaviorofgeosyntheticsdoesnotreflecttheinstalledperformanceofsyntheticdrainagesystemsand,therefore,shouldnotbeusedastheonlymethodofproductspecificationorperformancewithrespecttosyntheticdrainagesystems.Thisstandarddoesnotpurporttoaddressallthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatehealthandsafetypracticesandtodeterminetheapplicabilityofregulatorylimitationspriortouse.1.3ThevaluesinSIunitsaretoberegardedasthestandard.Valuesininch-poundunitsareprovidedinparenthesesforinformation.
【中国标准分类号】:W59
【国际标准分类号】:83_140_99
【页数】:6P.;A4
【正文语种】: