全比例温拌再生沥青混合料的路用性能  

Pavement Performance of Full-scale Warm Mix Recycled Asphalt Mixture

作　　者：蔡祥 彭馨彦[2] CAI Xiang;PENG Xinyan(Guangzhou Weixin Material Technology Co.,Ltd.,Guangzhou 510000,China;Guangzhou Municipal Engineering Maintenance Co.,Ltd.,Guangzhou 510000,China)

机构地区：[1]广州市市维新材料科技有限公司,广州510000 [2]广州市市政工程维修处有限公司,广州510000

出　　处：《科技和产业》2024年第19期309-313,共5页Science Technology and Industry

摘　　要：废旧沥青混合料的回收再利用是推动节能减排的重要举措。针对RAP(废旧沥青混合料)利用率较低等问题,提出全比例温拌再生沥青混合料的技术方案,实现100%RAP利用率,同时以马歇尔试验确定最佳外掺剂用量。将全比例温拌再生沥青混合料与常规热拌沥青混合料进行性能比对。结果表明:再生AC-13C沥青混合料的60、70℃车辙动稳定度分别为6364、3158次/mm,低温弯曲破坏应变为2834με,其水稳定性等路用性能测试指标也满足现行规范的技术要求。The recycling and reuse of waste asphalt mixture is a crucial initiative for promoting energy conservation and emission reduction.In order to address the issue of low RAP(reclaimed asphalt pavement)utilization rate,technical solution for full-scale warm mix recycled asphalt mixture is proposed,achieving 100%RAP utilization rate.Meanwhile,the optimal dosage of admixture is determined through the Marshall Test.A comparative analysis of the performance between the full-scale warm mix recycled asphalt mixture and the conventional hot mix asphalt mixture is conducted.It reveals that the rutting dynamic stability of the recycled AC-13C asphalt mixture at 60℃and 70℃is 6364 and 3158 times/mm,respectively.Its flexural strain at low-temperature failure is 2834με.Additionally,the pavement performance indicators such as water stability also meet the technical requirements of the current specifications.

关 键 词：全比例RAP(废旧沥青混合料) 温拌 性能比对 路用性能 

分 类 号：U416.26[交通运输工程—道路与铁道工程]