AGPTT102—为实验室测试制备改性粘合剂的处理草案

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1、COMMENTARYTOAG:PT/T102-PROTOCOLFORHANDLINGMODIFIEDBINDERSINPREPARATIONFORLABORATORYTESTINGAG:PT/T102—为实验室测试制备改性粘合剂的处理草案PREFACE前言ThisModifiedBinderTestMethodwaspreparedbytheBituminousSurfacingsResearchReferenceGroupBSRRG(formerlyNationalBituminousSurfacingsRese

2、archGroup)onbehalfofAustroads.RepresentativesofAustroads,ARRBGroupandIndustrythroughtheAustralianAsphaltPavementAssociation(AAPA)havebeeninvolvedinthedevelopmentandreviewofthistestmethod・木改性粘合剂测试方法是由BSRRG(前国家沥青表血研究小组)以Austroads名义撰写的木改性沥青检测方法是［tlBSRRG以Austroads

3、名义撰写的。Austroads的代表，ARRB行业研究小组通过AAPA已经从事开发和审核本检测方法。FOREWORD序Modifiedbindersareheat-sensitivematerialsandmayundergosignificantchangesintestresultsandultimatelytotheirpropertiesasaresultofexposuretohightemperaturesforextendedperiods・Anadditionalpotentialproblemis

4、thattheymayseparatefromthemodifiedbinderdispersion.Improperheatingandhomogenisationofsamplescan,therefore,affectthetestresultsobtainedonsampledbinders,whichmaythusnottrulyrepresentthoseoftheoriginalmaterial.改性粘合剂是热敏材料并且可能在测试结果中经受重大变化，作为长时间暴露在高温下的结果最终达到其性能。Rece

5、nttestingexperienee,particularlywiththosebindersformulatedwithSBSpolymeratconcerntrationsgreaterthanfourpercentsuggeststhatthemannerofbinderhandlingpriortotestingcansignificantlyinflueneethe(empirical)testresults.Thislaboratoryhandlingprotocolrepresentsagreedb

6、estpracticebasedonanextensiveperiodofreviewandevaluation.最新测试经验，尤其是用浓度大于4%的SBS聚合物配置的那些粘合剂，在测试能重大影响(实证的)测试结果之前建议给出了粘合剂处理方式。EstimatesofprecisionreportedbyAustroadsandineludedintestmethodsreleasedsince2002wereobtainedonmodifiedbindershandledwiththisprotocol.从2002

7、年已经用本草案在处理改性粘合剂上得到Austroads所报告的评估精度R包含在发布的检测方法屮。SCOPE范圉ThistestmethodadoptstheprinciplesofAS2341.21andappliesthesetomodifiedbindersthataretobetestedinaccordancewiththetestmethodssetoutbyAustroads.Suchbindersineludepolymermodifiedbitumenandmultigradebitumen.本检测

8、方法采用AS2341.21原理并按照Austroads所述的检测方法运用这些到要测试的改性粘合剂。这样的粘合剂包括改性沥青和多级沥青。FurtherDevelopment进一步研发Thistestmethodisakeycomporientoflaboratorybestpracticeforthetestingofmod讦iedbinders・Furthe