长寿命沥青混合料在上海长江隧桥铺面工程中的应用

Application of Long-life Asphalt Mixture in the Pavement Project ofShanghai Yangtse River Tunnel and Bridge

长寿命沥青铺装对于保证交通畅通、节省养护资金以及提高全寿命周期的总效益都具有重要的现实意义。以长江隧桥工程为背景,采用SBS+湖沥青复合改性SMA沥青混合料、温拌SMA沥青混合料和阻燃SMA沥青混合料为长寿命铺装材料,分别进行性能研究,结果表明:各项指标均能达到相关标准的技术要求,对长江隧桥铺面的设计和施工起到了指导作用。

Long-life asphalt pavement has important practical significance to ensure unblocked traffic,reduce maintenance cost and improve the general benefit of pavement life cycle.Basing on Shanghai Yangtse River Tunnel and Bridge project,this paper researched three long-life pavement mixtures,which are SBS and lake asphalt compound modification SMA,warm-mixed SMA and retardant asphalt mixture.The results show that all performance index can satisfy the technical standards.This research guided the designing and construction of Yangtse River Tunnel and Bridge Pavement Project.