高掺量胶粉复合改性沥青制备及存储稳定性研究  

Research on the Preparation and Storage Stability of High Content Rubber Powder Composite Modified Asphalt

作　　者：林大军 Lin Dajun(Yantai Highway Development Center,Yantai,China)

机构地区：[1]烟台市公路事业发展中心,山东烟台

出　　处：《科学技术创新》2023年第24期169-172,共4页Scientific and Technological Innovation

基　　金：山东省地方标准《环保稳定型胶粉改性沥青及混合料施工技术规程》。

摘　　要：针对高掺量胶粉改性沥青性能差、离析严重等问题,对橡胶沥青的制备及存储稳定性能展开研究。制备了4种橡胶改性沥青,通过针入度、延度、软化点指标及存储稳定性试验对比研究并分析了SBS及HPT对橡胶改性沥青的性能的影响。结果表明CR-SBS/HPT整体性能最佳且存储最稳定性。Aiming at the problems of poor performance and serious segregation of modified asphalt with high content rubber powder,the preparation and storage stability of rubber asphalt were studied.Four kinds of rubber-modified bitumen were prepared,and the effects of SBS and HPT on the properties of rubber-modified bitumen were compared and analyzed by penetration,ductility,softening point index and storage stability test.The results show that CR-SBS/HPT has the best overall performance and the most stable storage.

关 键 词：高掺量胶粉 SBS 乙撑硬脂酸酰胺 存储稳定性 复合改性 

分 类 号：U414[交通运输工程—道路与铁道工程]