ASTM D4885-2001(2006) 用宽带拉伸法测定土工薄膜性能强度的标准试验方法
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【英文标准名称】:StandardTestMethodforDeterminingPerformanceStrengthofGeomembranesbytheWideStripTensileMethod
【原文标准名称】:用宽带拉伸法测定土工薄膜性能强度的标准试验方法
【标准号】:ASTMD4885-2001(2006)
【标准状态】:现行
【国别】:
【发布日期】:2001
【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】:D35.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:breakingstrength/tenacity;failureendpoint-soil/relatedmaterials
【摘要】:Thistestmethodisaperformancetestintendedasadesignaidusedtodeterminetheabilityofgeomembranestowithstandthestressesandstrainsimposedunderdesignconditions.Thistestmethodassiststhedesignengineerincomparingseveralcandidategeomembranesunderspecifictestconditions.Asaperformancetest,thismethodisnotintendedforroutineacceptancetestingofcommercialshipmentsofgeomembranes.Othermoreeasilyperformedtestmethods,suchasTestMethodsD751orTestMethodD882,canbeusedforroutineacceptancetestingofgeomembranes.Thistestmethodwillbeusedrelativelyinfrequently,andtoestablishperformancecharacteristicsofgeomembranematerials.5.2.1Thereisnoknowncorrelationbetweenthistestmethodandindextestmethods,suchasTestMethodsD751.Allgeomembranescanbetestedbythismethod.Somemodificationoftechniquesmaybenecessaryforagivengeomembranedependinguponitsphysicalmake-up.Specialadaptationsmaybenecessarywithstronggeomembranesorgeomembraneswithextremelyslicksurfaces,topreventthemfromslippingintheclampsorbeingdamagedbytheclamps.1.1Thistestmethodcoversthedeterminationoftheperformancestrengthofsyntheticgeomembranesbysubjectingwidestripsofmaterialtotensileloading.1.2Thistestmethodcoversthemeasurementoftensilestrengthandelongationofgeomembranesandincludesdirectionsforcalculatinginitialmodulus,offsetmodulus,secantmodulus,andbreakingtoughness.1.3Thebasicdistinctionsbetweenthistestmethodandothermethodsmeasuringtensilestrengthofgeomembranesarethewidthofthespecimenstestedandthespeedofappliedforce.Thegreaterwidthofthespecimensspecifiedinthistestmethodminimizesthecontractionedgeeffect(necking)whichoccursinmanygeosyntheticsandprovidesacloserrelationshiptoactualmaterialbehaviorinservice.Theslowerspeedofappliedstrainalsoprovidesacloserrelationshiptoactualmaterialbehaviorinservice.1.4Asaperformancetest,thismethodwillbeusedrelativelyinfrequently,andtotestlargelotsofmaterial.Thistestmethodisnotintendedforroutinequalitycontroltestingofgeomembranes.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W59
【国际标准分类号】:59_080_70
【页数】:10P.;A4
【正文语种】:
【原文标准名称】:用宽带拉伸法测定土工薄膜性能强度的标准试验方法
【标准号】:ASTMD4885-2001(2006)
【标准状态】:现行
【国别】:
【发布日期】:2001
【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】:D35.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:breakingstrength/tenacity;failureendpoint-soil/relatedmaterials
【摘要】:Thistestmethodisaperformancetestintendedasadesignaidusedtodeterminetheabilityofgeomembranestowithstandthestressesandstrainsimposedunderdesignconditions.Thistestmethodassiststhedesignengineerincomparingseveralcandidategeomembranesunderspecifictestconditions.Asaperformancetest,thismethodisnotintendedforroutineacceptancetestingofcommercialshipmentsofgeomembranes.Othermoreeasilyperformedtestmethods,suchasTestMethodsD751orTestMethodD882,canbeusedforroutineacceptancetestingofgeomembranes.Thistestmethodwillbeusedrelativelyinfrequently,andtoestablishperformancecharacteristicsofgeomembranematerials.5.2.1Thereisnoknowncorrelationbetweenthistestmethodandindextestmethods,suchasTestMethodsD751.Allgeomembranescanbetestedbythismethod.Somemodificationoftechniquesmaybenecessaryforagivengeomembranedependinguponitsphysicalmake-up.Specialadaptationsmaybenecessarywithstronggeomembranesorgeomembraneswithextremelyslicksurfaces,topreventthemfromslippingintheclampsorbeingdamagedbytheclamps.1.1Thistestmethodcoversthedeterminationoftheperformancestrengthofsyntheticgeomembranesbysubjectingwidestripsofmaterialtotensileloading.1.2Thistestmethodcoversthemeasurementoftensilestrengthandelongationofgeomembranesandincludesdirectionsforcalculatinginitialmodulus,offsetmodulus,secantmodulus,andbreakingtoughness.1.3Thebasicdistinctionsbetweenthistestmethodandothermethodsmeasuringtensilestrengthofgeomembranesarethewidthofthespecimenstestedandthespeedofappliedforce.Thegreaterwidthofthespecimensspecifiedinthistestmethodminimizesthecontractionedgeeffect(necking)whichoccursinmanygeosyntheticsandprovidesacloserrelationshiptoactualmaterialbehaviorinservice.Theslowerspeedofappliedstrainalsoprovidesacloserrelationshiptoactualmaterialbehaviorinservice.1.4Asaperformancetest,thismethodwillbeusedrelativelyinfrequently,andtotestlargelotsofmaterial.Thistestmethodisnotintendedforroutinequalitycontroltestingofgeomembranes.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W59
【国际标准分类号】:59_080_70
【页数】:10P.;A4
【正文语种】:
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