【英文标准名称】:StandardTestMethodforMeasuringRoadRoughnessbyStaticLevelMethod
【原文标准名称】:用静态水平仪法测量道路不平度的测试方法
【标准号】:ASTME1364-1995(2005)
【标准状态】:现行
【国别】:
【发布日期】:1995
【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】:E17.31
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:公路建设;车行道(公路);表面粗糙度;试验;道路建筑
【英文主题词】:
【摘要】:Thistestmethodprovidesameansforobtainingastandardroughnessindexusinggenericequipment.Thisparticulartestmethodissimplebutlabor-intensive,andismostappropriateforestablishingreferenceroughnesslevelsforalimitednumberoftestsites.Testsiteswhoseroughnessismeasuredwiththistestmethodcanbeusedtocalibrateresponse-typemeasuringsystems(seeTestMethodE1082).Suchsitescanalsobeusedtoverifyproperoperationofotherprofilemeasuringsystems,andtoestablishaccuracylevelsforotherprofilemeasuringsystems(seeTestMethodE950).1.1Thistestmethodcoversthemeasurementofalongitudinalprofileofatravelledsurfaceusingastaticlevelforthepurposeofobtainingaroadroughnessindex.Thistestmethodissuitableforallsurfacetypesthataretravelledbyconventionalgroundvehicles,includingpavedandunpavedroads.1.2Thistestmethodislabor-intensivewithrespecttoothermeansformeasuringlongitudinalprofile,andisusedmainlyfor(1)validatingotherprofile-measuringmethodsand(2)calibratingresponse-typeroughness-measuringsystems.Note18212;Whenmeasuringroadroughnesswithastaticlevelforthepurposesofvalidatingotherprofile-measuringmethodsorcalibratingresponse-typeroughness-measuringsystems,thestaticlevelmeasurementprocessshouldbeevaluatedtoensurethemeasurementsarewithintheresolutionrequiredin.Itisrecommendedthatseverallocationsbemarkedatvariousdistancesfromthelevelandtheselocationsbemeasuredinsequenceseveraltimestoestablishifthereadingsstaywithintheresolutionrequired.Wind,distancebetweentherodandthelevel,surfacetexture,andpositioningoftherodallhavesignificantimpactontherepeatabilityoftheelevationmeasurements.Anyvariationfromthetrueelevationswillprimarilyaffectthebiasasexplainedin.Todeterminetheeffectofrandomvariations,randomvariationscanbeaddedtoanexistingprofileandtheIRIrecalculatedtodeterminetheimpactofthevariations.1.3Thistestmethoddescribesthecomputationrequiredforoneparticulartypeofroughnessindex,thevehiclesimulationusedintheInternationalRoughnessIndex(IRI).Additionally,theprofileobtainedwiththistestmethodcanbeprocessedtoobtainotherroughnessmeasures.1.4Thistestmethodincludestwolevelsofaccuracythatcanbechosenaccordingtoneed.Themoreaccurate,designatedasClass1,reducesthemeasurementerroroftheroughnessindextolessthan2%ofthetruevalueoftheindex.Thesecond,designatedasClass2,involveserrorslessthan5%.1.5Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P66
【国际标准分类号】:93_080_20
【页数】:6P.;A4
【正文语种】:


Product Code:SAE AS81765/1
Title:Insulating Components, Molded, Electrical, Heat Shrinkable Polyolefin, Crosslinked, Semi-Rigid and Flexible
Issuing Committee:Ams P Polymeric Materials Committee
Scope:No scope available.