高黏沥青改性剂在贵州省干线公路养护工程中的应用

Application of high viscous asphalt modifier in maintenance engineering of Guizhou trunk highway

以自主研发的高黏沥青改性剂PEA为研究对象,以日本进口改性剂和某国产品牌改性剂作为平行对比,分别对高黏沥青和高黏沥青混合料的性能进行分析,并铺筑排水沥青路面试验段。结果表明,掺加高黏沥青改性剂PEA制备的混合料路用性能和施工性能优良,具有较好的耐老化性。路面经现场检测,各项技术性能符合《排水沥青路面设计与施工技术细则》(征求意见稿)要求。

In this paper,PEA,a high viscosity asphalt modifier independently developed,is taken as the research object,and the imported modifier from Japan and a domestic brand modifier are taken as parallel comparison.The performance indexes of high-viscous asphalt and high-viscous asphalt mixture are analyzed respectively,and the porous asphalt pavement test road is paved.The results show that the mixture prepared by PEA has excellent pavement performance and construction performance,and good aging resistance performance.Field test results show that all technical performances meets the requirements of the"Technical Rules for Design and Construction of Drained Asphalt Pavement"(Draft for Comment).