ASTM E2380-2005 用出流量计测量铺面结构排水量的标准试验方法
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【英文标准名称】:StandardTestMethodforMeasuringPavementTextureDrainageUsinganOutflowMeter
【原文标准名称】:用出流量计测量铺面结构排水量的标准试验方法
【标准号】:ASTME2380-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:E17.23
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:流出;结构;路面;测量;试验;测量计;道路建筑;排水
【英文主题词】:
【摘要】:Thistestmethodissuitableasafieldtesttoevaluatethesurfacedrainage,andinsomecases,theinternaldrainageofthesurfacecourseofapavement.Whenusedwithothertests,theoutflowtimemaybeusedtoevaluatethetextureproducedbyanasphaltpavementmix,afinishingmethodusedonPortlandCementPavement,andrefinishingoperationsonanoldpavementsurface.TestresultswillcorrelatewithothermethodssuchastheCTMeter(TestMethodE2157),MPD(PracticeE1845)andMTD(TestMethodE965).Note18212;ThereciprocaloftheoutflowtimeishighlycorrelatedwiththeMPDexceptwhenthesurfaceishighlyporoussincetheMPDisameasureofthesurfacetextureanddoesnotaccountforthewaterflowingthroughthesurfacepores.Theoutflowtimesmeasuredbythismethodareanindicationonly,andarenotmeanttoprovideacompleteassessmentofthepavementsurfacefriction,orwetweathersafetycharacteristics.Thistestmethoddoesnotnecessarilycorrelateoragreewithothermethodsofmeasuringpavementsurfacecharacteristics.Itisuptotheoperatortodeterminethecorrelationofeachmethodconsidered.1.1Thistestmethodcoverstheconnectivityofthetextureasitrelatestothedrainagecapabilityofthepavementthroughitssurfaceandsubsurfacevoids.Thisisaspecificdevicethattimeshowlongittakesaknownquantityofwater,undergravitationalpull,toescapethroughvoidsinthepavementtextureofthestructurebeingtested.Thetechniqueisintendedtoprovideameasureoftheabilityofthepavementtorelievepressurefromthefaceofvehiculartiresandthusanindicationofhydroplaningpotentialunderwetconditions.Afasterescapetimeindicatesathinnerfilmofwatermayexistbetweenthetireandthepavement,thusmoremicro-texturecouldbeexposedtoindentthefaceofthetireandmoresurfacefrictionavailabletothetire.Thelowerthenumberofsecondsittakestoevacuatethewater,thelowerthewaterpressureunderthetire.Itwillbeuptotheoperatortocomparetheresultsofthistesttootherpertinentfactorssuchasexpectedrainfallintensityandfrequency,aggregatetype,consistencyoftexture,grade,slope,expectedvehicularspeed,andaccidenthistory,todeterminetherelationshipbetweentheoutflowmeterreadingandthelikelihoodofhydroplaningonagivensurface.Comparingtheoutflowmeterreadingofapavementknowntohaveahistoryofhydroplaning,againstonewithagoodhistory,withallotherfactorssimilar,willgivetheoperatoranindicationoftheoutflowmeternumberthatwillbenecessarytopromotewetweathersafety.1.2Theresultsobtainedusingthismethodarerelatedtothemeanhydraulicradiusofapavedsurfaceandmaycorrelatewithothermethodstomeasuretexture.1.3Theresultsobtainedusingthistestmethodarerelatedtothemeantexturedepth(MTD).1.4ThevaluesstatedinSIunitsareconsideredstandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishlimitationspriortouse.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N12
【国际标准分类号】:93_080_10
【页数】:4P.;A4
【正文语种】:
【原文标准名称】:用出流量计测量铺面结构排水量的标准试验方法
【标准号】:ASTME2380-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:E17.23
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:流出;结构;路面;测量;试验;测量计;道路建筑;排水
【英文主题词】:
【摘要】:Thistestmethodissuitableasafieldtesttoevaluatethesurfacedrainage,andinsomecases,theinternaldrainageofthesurfacecourseofapavement.Whenusedwithothertests,theoutflowtimemaybeusedtoevaluatethetextureproducedbyanasphaltpavementmix,afinishingmethodusedonPortlandCementPavement,andrefinishingoperationsonanoldpavementsurface.TestresultswillcorrelatewithothermethodssuchastheCTMeter(TestMethodE2157),MPD(PracticeE1845)andMTD(TestMethodE965).Note18212;ThereciprocaloftheoutflowtimeishighlycorrelatedwiththeMPDexceptwhenthesurfaceishighlyporoussincetheMPDisameasureofthesurfacetextureanddoesnotaccountforthewaterflowingthroughthesurfacepores.Theoutflowtimesmeasuredbythismethodareanindicationonly,andarenotmeanttoprovideacompleteassessmentofthepavementsurfacefriction,orwetweathersafetycharacteristics.Thistestmethoddoesnotnecessarilycorrelateoragreewithothermethodsofmeasuringpavementsurfacecharacteristics.Itisuptotheoperatortodeterminethecorrelationofeachmethodconsidered.1.1Thistestmethodcoverstheconnectivityofthetextureasitrelatestothedrainagecapabilityofthepavementthroughitssurfaceandsubsurfacevoids.Thisisaspecificdevicethattimeshowlongittakesaknownquantityofwater,undergravitationalpull,toescapethroughvoidsinthepavementtextureofthestructurebeingtested.Thetechniqueisintendedtoprovideameasureoftheabilityofthepavementtorelievepressurefromthefaceofvehiculartiresandthusanindicationofhydroplaningpotentialunderwetconditions.Afasterescapetimeindicatesathinnerfilmofwatermayexistbetweenthetireandthepavement,thusmoremicro-texturecouldbeexposedtoindentthefaceofthetireandmoresurfacefrictionavailabletothetire.Thelowerthenumberofsecondsittakestoevacuatethewater,thelowerthewaterpressureunderthetire.Itwillbeuptotheoperatortocomparetheresultsofthistesttootherpertinentfactorssuchasexpectedrainfallintensityandfrequency,aggregatetype,consistencyoftexture,grade,slope,expectedvehicularspeed,andaccidenthistory,todeterminetherelationshipbetweentheoutflowmeterreadingandthelikelihoodofhydroplaningonagivensurface.Comparingtheoutflowmeterreadingofapavementknowntohaveahistoryofhydroplaning,againstonewithagoodhistory,withallotherfactorssimilar,willgivetheoperatoranindicationoftheoutflowmeternumberthatwillbenecessarytopromotewetweathersafety.1.2Theresultsobtainedusingthismethodarerelatedtothemeanhydraulicradiusofapavedsurfaceandmaycorrelatewithothermethodstomeasuretexture.1.3Theresultsobtainedusingthistestmethodarerelatedtothemeantexturedepth(MTD).1.4ThevaluesstatedinSIunitsareconsideredstandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishlimitationspriortouse.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N12
【国际标准分类号】:93_080_10
【页数】:4P.;A4
【正文语种】:
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