【英文标准名称】:StandardTestMethodforWaterCaptureandMediaRetentionofGeocompositeDrainLayersforGreenRoofSystems
【原文标准名称】:新暴露顶板系统用土工合成排水层吸水和介质保持的标准试验方法
【标准号】:ASTME2398-2005
【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】:E60.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:geocompositedrainlayers;greenroof;mediaretention;watercapture
【摘要】:Determiningtheseperformancecharacteristicsofgreenroofsystemsprovidesinformationtofacilitatetheassessmentofrelatedengineeringaspectsofthefacility.Suchaspectsmayincludestructuraldesignrequirements,mechanicalengineeringandthermaldesignrequirements,andfireandlifesafetyrequirements.5.1.1Accurateinformationaboutthewaterandmediaholdingcapacityofgeocompositedrainlayersisessentialtopredictdeadloadforgreenroofsystems.Determiningtheseperformancecharacteristicsofgreenroofsystemsprovidesinformationtofacilitateassessmentoftheperformanceofonegreenroofsystemrelativetooneanother.5.2.1Watercaptureisalsousefulinassessingirrigationrequirementsforgreenroofdesigns.5.2.2Informationabouttheunitmediaretentionvolumeisrequiredtopredictthequantityofmaterialthatwillberequiredtoconstructagreenroofwithaspecifiedtotalthickness.1.1Thistestmethodcoversthedeterminationofthewaterandmediaretentionofsyntheticdrainslayersusedingreenroofsystems.1.2Thisstandardisapplicabletogeocompositedrainlayersthatretainwaterandmediaincup-likereceptaclesontheiruppersurface.Examplesincludeshapedplasticmembranesandclosed-cellplasticfoamboards1.3Thisstandarddoesnotapplytoproductsmanufacturedfromwater-absorptivematerials.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesandtodeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q17
【国际标准分类号】:65_020_20;91_060_20
【页数】:3P.;A4
【正文语种】: