ASTM D4694-1996(2003) 落重型脉冲负荷装置测量弯曲性的标准试验方法

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【英文标准名称】:StandardTestMethodforDeflectionswithaFalling-Weight-TypeImpulseLoadDevice
【原文标准名称】:落重型脉冲负荷装置测量弯曲性的标准试验方法
【标准号】:ASTMD4694-1996(2003)
【标准状态】:现行
【国别】:
【发布日期】:1996
【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】:(TestMethod)
【标准水平】:()
【中文主题词】:承重面的表面修饰;建筑;额定值;精整;试验;施工材料;公路建设;路面(道路);路面;材料;表面;挠曲;挠曲试验
【英文主题词】:deflectionsurveys;deflectiontesting;fallingweight;deflectometer(FED);impulsedeflectiontestingdevice;load/deflectiontesting;nondestructivetesting(NDT);pavementdeflection;pavementtesting
【摘要】:Thistestmethodcoversthedeterminationofpavementsurfacedeflectionsasaresultoftheapplicationofanimpulseloadtothepavementsurface.Theresultingdeflectionsaremeasuredatthecenteroftheappliedloadandatvariousdistancesawayfromtheload.Deflectionsmaybeeithercorrelateddirectlytopavementperformanceorusedtodeterminethein-situmaterialcharacteristicsofthepavementlayers.Someusesofdataincludestructuralevaluationofloadcarryingcapacityanddeterminationofoverlaythicknessrequirementsforhighwayandairfieldpavements.1.1Thistestmethodcoversthemeasurementofdeflectionsofpavedandunpavedsurfaceswithafalling-weight-typeimpulseloaddevice.Thesedevicesarecommonlyreferredtoasfalling-weightdeflectometersorFWDs.1.2Thistestmethoddescribesthemeasurementofverticaldeflectionresponseofthesurfacetoanimpulseloadappliedtothepavementsurface.Verticaldeflectionsaremeasuredontheloadaxisandatpointsspacedradiallyoutwardfromtheloadaxis.Note18212;SubcommitteeD04.39iscurrentlyworkingonthedevelopmentofaPrecisionandBiasstatement.Therefore,thecommitteerecommendsthattheresultsfromthistestmethodshouldnotbeusedinabuyingorsellingrelationshipforconstructionmaterialsorconstructionmaterialsacceptance.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.AspecifichazardstatementisgiveninSection6.
【中国标准分类号】:P66
【国际标准分类号】:
【页数】:3P.;A4
【正文语种】: