ASTM D4602-1993(2008) 使用循环负荷动态偏转设备的路面无损检测的标准指南

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【英文标准名称】:StandardGuideforNondestructiveTestingofPavementsUsingCyclic-LoadingDynamicDeflectionEquipment
【原文标准名称】:使用循环负荷动态偏转设备的路面无损检测的标准指南
【标准号】:ASTMD4602-1993(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1993
【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】:E17.41
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:cyclic-loading;deflection;elasticmoduli;nondestructive;Asphaltpavingmixtures;Dataanalysis--pavingapplications;Temperaturetests--soil/rock/relatedmaterials;Deflection--pavementsurfaces/applications;Dynamicdeflection(“Dynaflect&rd
【摘要】:Nondestructivetestingofpavementstoobtaindeflectiondataforuseinpavementevaluationandoverlaydesignhasbecomecommon.Whilethediversityofequipmentanddataapplicationsmakespecificproceduresinfeasible,thisguideisintendedtoencouragethecollectionofsufficientdeflectiondata,adequatecalibrationofequipment,andimplementationofgeneralproceduresleadingtobetterqualityandmoreuniformdeflectionmeasurements.1.1Thisguidecoversthepreparation,equipment,calibrationofequipment,locationoftestpoints,magnitudesandconfigurationsofappliedloads,cyclicfrequencies,andpresentationofdatafornondestructivetestingofpavementsusingcyclic-loadingdynamicdeflectionequipment.1.2Cyclic-loadingdynamicdeflectionequipmentincludesagroupofdevicesthatinduceasteady-statesinusoidalvibrationinthepavementthroughcyclicgenerationofadynamicload.Allsuchdevicesapplyastaticloadonthepavementsurface,resultinginastaticdeflection,andtheninducesomesinusoidalloadandconsequentdeflectionaroundthestaticloadanddeflectionthroughanappliedsteady-statedynamicload.1.3Astherearegreatdifferencesbetweenvariouscyclic-loadingdynamicdeflectiondevices,thisguideisintendedtogiveuniformly-applicableguidance,ratherthanspecificinstructions,fortheiruse.Forinstance,itwillspecifythatcalibrationofthedevicesandtheirinstrumentationbecarriedoutatthefrequenciesandinaccordancewithproceduresrecommendedbytheirmanufacturers,ratherthanprovidingspecificinstructions.Also,dataisspecifiedforcollectionthatshouldproveadequateforusualapplicationsofsuchdeflectiondata,butnoproceduresareincludedforx201C;back-calculatingx201D;elasticmoduliofpavementlayersorothersuchapplications.1.4Thisguidedoesnotapplytostaticdeflectionequipment,suchasthex201C;BenkelmanBeam,x201D;automatedbeamdeflectionequipment,suchasthex201C;CaliforniaTravelingDeflectometer,x201D;orimpulsedeflectionequipment,suchasthex201C;FallingWeightDeflectometer.x201D;1.5Itiscommonpracticeintheengineeringprofessiontouseconcurrentlypoundstorepresentbothaunitofmass(lbm)andofforce(lbf).Thisimplicitlycombinestwoseparatesystemsofunits,thatis,theabsolutesystemandthegravitationalsystem.Itisscientificallyundesirabletocombinetheuseoftwoseparatesetsofinch-poundunitswithinasinglestandard.Thisguidehasbeenwrittenusingthegravitationalsystemofunitswhendealingwiththeinch-poundsystem.Inthissystem,thepound(lbf)representsaunitofforce(weight).However,theuseofbalancesorscalesrecordingpoundsofmass(lbm),ortherecordingofdensityinlbm/ft3shouldnotberegardedasnonconformancewiththisguide.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.7Thisguideoffersanorganizedcollectionofinformationoraseriesofoptionsanddoesnotrecommendaspecificcourseofaction.Thisdocumentcannotreplaceeducationorexperienceandshouldbeusedinconjunctionwithprofessionaljudgment.Notallaspectsofthisguidemaybeapplicableinallcircumstances.ThisASTMstandardisno......
【中国标准分类号】:R18
【国际标准分类号】:93_080_20
【页数】:4P.;A4
【正文语种】:英语