沥青定向覆盖路面解决方案.pdf

1、A solution for extending the life of an existing pavement investment.Image source:NAPAImage source:ACPATim Aschenbrener,P.E.Senior Asphalt EngineerPavement Materials TeamFHWA:Office of Infrastructure Disclaimer Except for any statutes or regulations cited,the contents of this presentation do not hav

2、e the force and effect of law and are not meant to bind the public in any way.This presentation is intended only to provide information to the public regarding existing requirements under the law or agency policies.The U.S.Government does not endorse products or manufacturers.Trademarks or manufactu

3、rers names appear in this material only because they are considered essential to the objective of the material.They are included for informational purposes only and are not intended to reflect a preference,approval,or endorsement of any one product or entity.None of the AASHTO and ASTM specification

4、s mentioned in this presentation are required under Federal requirements.2Acronyms and AbbreviationsAASHTO=American Association of Highway and Transportation OfficialsAC=Asphalt contentARGG=Asphalt rubber gap gradedCAM=Crack attenuating mixtureCP2=California Pavement Preservation CenterEDC=Every Day

5、 CountsGTR=ground tire rubberHiMA=Highly modified asphaltHPTO=High performance thin overlaysHWTT=Hamburg wheel track testMTV=Material transfer vehicleNCAT=National Center for Asphalt TechnologyNMAS=Nominal maximum aggregate sizeOGFC=open-graded friction coursePCC=Portland cement concretePG=Performan

6、ce gradeQPL=Qualified producer listRTR=Recycled tire rubberSBS=Styrene butadiene styreneSMA=Stone matrix asphaltTOM-C=Thin overlay mixture-coarseTOM-F=Thin overlay mixture-fineTSR=Tensile strength ratioUTBWC=Ultra thin bonded wearing courseVCA=Voids in the coarse aggregateVMA=voids in the mineral ag