ASTM D3791-2004 评价热对沥青影响的标准实施规范

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【英文标准名称】:StandardPracticeforEvaluatingtheEffectsofHeatonAsphalts
【原文标准名称】:评价热对沥青影响的标准实施规范
【标准号】:ASTMD3791-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:D08.03
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:沥青;工艺;沥青制品;防水材料;评定;热学;地沥青;建筑;施工材料
【英文主题词】:asphalts;heatexposure;overheated;physicalpropertychanges
【摘要】:Whenasphaltsaremaintainedatelevatedtemperaturesinthepresenceofair,theircharacteristicsmaychange.Certainblownasphaltsalsosoftenwhenmaintainednear,andparticularlyabove,theirfinalblowingtemperaturesundervirtuallyair-freeconditions.Thismayhappeniftheasphaltisoverheatedforapplicationpurposes.Thispracticeprovidesauniformheat-treatmentprocedureandmethodsforevaluatingtheeffectofthistreatmentonsomeofthecharacteristicsofasphalts.Changesobservedwhenasphaltsareoverheatedarenotindicativeofchangestobeexpectedwhenasphaltsareheatedtonormalapplicationtemperatures.1.1Thispracticecoversaprocedureforevaluatingsomeoftheeffectsonasphaltsofheatinginthepresenceoflittleornoair.1.2Thisstandarddoesnotpurporttoaddressthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E43
【国际标准分类号】:91_100_50
【页数】:2P.;A4
【正文语种】: