ASTM D6574-2000(2006) 径向流动法测定土工合成物(平面)液压透射率的试验方法
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【英文标准名称】:StandardTestMethodforDeterminingthe(In-Plane)HydraulicTransmissivityofaGeosyntheticbyRadialFlow
【原文标准名称】:径向流动法测定土工合成物(平面)液压透射率的试验方法
【标准号】:ASTMD6574-2000(2006)
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:D35.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:geosynthetics;hydraulictransmissivity;indextest;in-planeflow;radialtransmissivity
【摘要】:Thistestmethodisanindextesttoestimateandcomparethein-planehydraulictransmissivityofoneorseveralcandidategeosyntheticsunderspecificgradientandstressconditions.Thistestmethodmaybeusedforacceptancetestingofcommercialshipmentsofgeosynthetics,butcautionisadvisedsinceinformationaboutbetween-laboratoryprecisionisincomplete.Comparativetestsasdirectedin5.2.1areadvisable.5.2.1Incaseofadisputearisingfromdifferencesinreportedtestresultswhenusingthisprocedureforacceptanceofcommercialshipments,thepurchaserandthesuppliershouldfirstconfirmthatthetestshavebeenconductedusingcomparabletestparametersincludingspecimenconditioning,normalstress,hydraulicsystemgradient,etc.Comparativeteststhenshouldbeconductedtodetermineifthereisastatisticalbiasbetweentheirlaboratories.Competentstatisticalassistanceisrecommendedfortheinvestigationofbias.Asaminimum,thetwopartiesshouldtakeagroupoftestspecimensthatareashomogeneousaspossibleandthatareformedfromalotofthematerialinquestion.Thetestspecimensshouldbeassignedrandomlytoeachlaboratoryfortesting.TheaverageresultsfromthetwolaboratoriesshouldbecomparedusingtheStudentrsquo;t-testforunpaireddataandanacceptableprobabilitylevelchosenbythetwopartiesbeforetestingisbegun.Ifbiasisfound,eitheritscausemustbefoundandcorrectedorthepurchaserandsuppliermustagreetointerpretfuturetestresultsinlightoftheknownbias.1.1Thistestmethodcoverstheprocedurefordeterminingthein-planetransmissivityofgeosyntheticsundervaryingnormalcompressivestressesusingaradialflowapparatus.Thetestisintendedtobeanindextestusedprimarilyforgeotextiles,althoughotherproductscomposedofgeotextilesandgeotextile-typematerialsmaybesuitablefortestingwiththistestmethod.1.2Thistestmethodisbasedontheassumptionthatthetransmissivityofthegeosyntheticisindependentoforientationoftheflowandisthereforelimitedtogeosyntheticsthathavesimilartransmissivityinalldirectionsandshouldnotbeusedformaterialswithorientedflowbehavior.1.3Thistestmethodhasbeendevelopedspecificallyforgeosyntheticsthathavetransmissivityvaluesontheorderoforlessthan2104m2/s.ConsiderusingTestMethodD4716forgeosyntheticswithtransmissivityvalueshigherthan2104m2/s.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P04
【国际标准分类号】:59_080_70
【页数】:5P.;A4
【正文语种】:
【原文标准名称】:径向流动法测定土工合成物(平面)液压透射率的试验方法
【标准号】:ASTMD6574-2000(2006)
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:D35.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:geosynthetics;hydraulictransmissivity;indextest;in-planeflow;radialtransmissivity
【摘要】:Thistestmethodisanindextesttoestimateandcomparethein-planehydraulictransmissivityofoneorseveralcandidategeosyntheticsunderspecificgradientandstressconditions.Thistestmethodmaybeusedforacceptancetestingofcommercialshipmentsofgeosynthetics,butcautionisadvisedsinceinformationaboutbetween-laboratoryprecisionisincomplete.Comparativetestsasdirectedin5.2.1areadvisable.5.2.1Incaseofadisputearisingfromdifferencesinreportedtestresultswhenusingthisprocedureforacceptanceofcommercialshipments,thepurchaserandthesuppliershouldfirstconfirmthatthetestshavebeenconductedusingcomparabletestparametersincludingspecimenconditioning,normalstress,hydraulicsystemgradient,etc.Comparativeteststhenshouldbeconductedtodetermineifthereisastatisticalbiasbetweentheirlaboratories.Competentstatisticalassistanceisrecommendedfortheinvestigationofbias.Asaminimum,thetwopartiesshouldtakeagroupoftestspecimensthatareashomogeneousaspossibleandthatareformedfromalotofthematerialinquestion.Thetestspecimensshouldbeassignedrandomlytoeachlaboratoryfortesting.TheaverageresultsfromthetwolaboratoriesshouldbecomparedusingtheStudentrsquo;t-testforunpaireddataandanacceptableprobabilitylevelchosenbythetwopartiesbeforetestingisbegun.Ifbiasisfound,eitheritscausemustbefoundandcorrectedorthepurchaserandsuppliermustagreetointerpretfuturetestresultsinlightoftheknownbias.1.1Thistestmethodcoverstheprocedurefordeterminingthein-planetransmissivityofgeosyntheticsundervaryingnormalcompressivestressesusingaradialflowapparatus.Thetestisintendedtobeanindextestusedprimarilyforgeotextiles,althoughotherproductscomposedofgeotextilesandgeotextile-typematerialsmaybesuitablefortestingwiththistestmethod.1.2Thistestmethodisbasedontheassumptionthatthetransmissivityofthegeosyntheticisindependentoforientationoftheflowandisthereforelimitedtogeosyntheticsthathavesimilartransmissivityinalldirectionsandshouldnotbeusedformaterialswithorientedflowbehavior.1.3Thistestmethodhasbeendevelopedspecificallyforgeosyntheticsthathavetransmissivityvaluesontheorderoforlessthan2104m2/s.ConsiderusingTestMethodD4716forgeosyntheticswithtransmissivityvalueshigherthan2104m2/s.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P04
【国际标准分类号】:59_080_70
【页数】:5P.;A4
【正文语种】:
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