【英文标准名称】:StandardTestMethodforDeteriorationofGeotextilesfromOutdoorExposure
【原文标准名称】:暴露于室外的地工织物损坏的标准试验方法
【标准号】:ASTMD5970-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:D35.02
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:degradation;geotextile;outdoorexposure;strengthretained;ultravioletdegradation;Deterioration;Geotextiles;Outdoorexposuretesting
【摘要】:Outdoorexposuretestsatonelocationmaynotbeapplicabletoaprojectsiteatanotherlocation.Thistestmethodevaluatesgeotextilesundersitespecificatmosphericconditionsoveran18monthperiod.AdegradationcurveasperSection10.8,basedonstrength,elongation,ormodulus,orallofthese,maybedevelopedforthegeotextilebeingevaluated.Thistestmethodcanbeusedforcomparativetestingofthedegradationofgeotextiles.Thistestmethodisconsideredtobeaperformancetestandassuchtheresponsibilityforitsperformancerestswiththespecifyingorpurchasingagency.Note18212;Theintentofthisprocedureistoprovidetheuserofthistestmethodandgeotextilesastandardbywhichtoevaluateultravioletdegradationintermsofsitespecificconditions,notintermsofincidentradiationandtemperature.Ifdesired,theusermaywanttohavethenecessarymeasurementandrecordingequipmentateachsitetodothis.However,theexpenseofdoingsoateachsitemaybeprohibitive.Therefore,thisisnotaspecificrequirementofthistestmethod.1.1Thistestmethodcoversevaluatingthedeteriorationintensilestrengthandstrainafteroutdoorexposure.1.2Thedeteriorationisassessedasareductioninstrengthandstrainatfailurefromtheunexposedgeotextile.1.3Thespecificlocationofthelightandweatherexposureismadeonthebasisofasitespecificdecisionbetweenthepartiesinvolved.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Theinch-poundunitsgiveninparenthesesareforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W59
【国际标准分类号】:59_080_70
【页数】:3P.;A4
【正文语种】:英语