摘要
Abstract
In order to reduce the risk of tunnel pavement fire and improve the safety of tunnel construction.Taking a highway tunnel in Sichuan Province as an example,this paper analyzes the design of the mixture ratio of SBS modified asphalt mixture,explores the construction technolo-gy of SBS modified asphalt pavement and evaluates its application effect.The practice shows that the average friction swing value of SBS modi-fied flame retardant asphalt pavement is 75,and the construction depth is greater than 0.83 mm,which meets the requirements of the specifi-cation,indicating that SBS modified flame retardant asphalt has good anti-friction performance.The oxygen index of the construction section exceeds 27%,which is higher than the standard value,and effectively improves the flame retardant performance of the tunnel pavement.关键词
隧道路面/SBS改性沥青/温拌阻燃/施工效果Key words
Tunnel pavement/SBS modified asphalt/Flame retardant with warm mixing/Construction effect分类
交通工程
