DOA/SBS复合改性沥青及其混合料路用性能分析  

Study on the Pavement Performance of DOA/SBS Compound Modified Asphalt and Its Mixture

作　　者：张锋 刘攀 李凯[2] 盛兴跃 李璐 Zhang Feng;Liu Pan;Li Kai;Sheng Xingyue;Li Lu(Chongqing Zhixiang Paving Technology Engineering Co.,Ltd.,Chongqing 401336;Chongqing Jiaotong University,Chongqing 400074)

机构地区：[1]重庆市智翔铺道技术工程有限公司,重庆401336 [2]重庆交通大学,重庆400074

出　　处：《石油沥青》2020年第3期54-58,共5页Petroleum Asphalt

基　　金：重庆市重点产业共性关键技术创新专项重点研发项目(cstc2017zdcy-zdyf0297);重庆交通大学研究生科研创新项目(2019S0146)。

摘　　要：考察了DOA性能和复合改性沥青性能的关联性,探讨DOA/SBS复合改性沥青用于浇注式沥青混合料GA和SMA的可行性,评价了钢桥面铺装组合结构“GA+SMA”的综合性能。试验结果表明,DOA的性能直接影响复合改性沥青的性能,DOA的常规性能指标、蜡含量和组分分布对复合改性沥青性能影响较大;DOA/SBS复合改性沥青浇注式沥青混合料GA10和SMA路用性能良好,铺装组合结构具有良好的综合性能。DOA应用于钢桥面铺装材料在技术上及经济上均具有可行性。The relationship between DOA performance and compound modified asphalt performance is investigated.The feasibility of using DOA/SBS compound modified asphalt as GA and SMA is studied,and then the comprehensive performance of steel deck pavement composite structure"GA+SMA"is evaluated.The results showed that DOA performance directly effect compound modified asphalt performance.The wax content and composition distribution of DOA had a great effect on the performance of compound modified asphalt.DOA/SBS compound modified asphalt GA10 and SMA has better road performance,and the pavement composite structure has good comprehensive performance.The application of DOA to steel bridge deck pavement is feasible both technically and economically.

关 键 词：DOA/SBS复合改性沥青 浇注式沥青混合料 SMA 铺装组合结构 路用性能 

分 类 号：U414[交通运输工程—道路与铁道工程]