ASTM D7402-2009 阳离子乳化沥青识别的标准实施规程

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【英文标准名称】:StandardPracticeforIdentifyingCationicEmulsifiedAsphalts
【原文标准名称】:阳离子乳化沥青识别的标准实施规程
【标准号】:ASTMD7402-2009
【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】:D04.42
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:asphaltemulsion;cationicemulsifiedasphalt;emulsifiedasphalt;emulsion;particlecharge
【摘要】:Cationicemulsifiedasphaltsareidentifiedbythemigrationoftheparticlestoanegativelychargedelectrode(cathode)bymeansofadirectcurrent.Aggregatesandsandsusedinconjunctionwithemulsifiedasphaltsareoftenpredominantlyeithernegativelyorpositivelycharged.Emulsifiedasphaltsshouldbeselectedtobecompatiblewiththeavailableaggregateorsand.ThispracticewillaidinidentifyingacationictypeofemulsifiedasphaltasdefinedbySpecificationD2397.1.1Thispracticeisusedtoidentifycationicemulsifiedasphalts.Positivelychargedparticlesareclassifiedascationic.Emulsifiedasphaltsthatdonx2019;tregisterapositivechargemayalsobeclassifiedascotionicslow-settingiftheycoataspecifictypeofnegativelychargedsilicasand.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E43
【国际标准分类号】:93_080_20
【页数】:3P.;A4
【正文语种】:英语