摘要
排水沥青混合料(PAC)最早起源于欧洲,我国在20世纪80年代引入,经过40年的不断研究和应用,逐渐成为我国沥青路面面层应用最为广泛的混合料之一。PAC的主要特点是大空隙率,具有横向排水的功能,且排水性能较好,能切实提高雨天行车的安全性,特别适合雨水多的地区。广西南宁绕城高速公路西段路面改造工程铺筑了PAC-13路面上层,取得了良好效果。
Asphalt mixture(PAC)originated from Europe at the earliest,and was introduced into China in 1980s.After 40 years of continuous research and application,PAC has gradually become one of the most widely used asphalt pavement mixtures in China.PAC is characterized by its large void ratio,horizontal drainage function and good drainage,which can effectively improve the safety of driving in rainy days,and is especially suitable for rainy areas.The upper layer of PAC-13 pavement has been paved in the pavement reconstruction project of the west section of Nanning Ring Expressway,and good results have been achieved.
作者
谢天
XIE Tian(Guangxi Road and Bridge Engineering Group Co.,Ltd.,Nanning 530000,China)
