摘要
为了补强宁宿徐高速公路沥青路面的结构,提高其性能和服务水平,采用"PAC-13+PAC-20"双层排水沥青路面结构形式对旧路面进行罩面养护,并对双层排水路面沥青混合料的配合比进行设计,分析上、下排水层的层间黏结性能,以及双层排水沥青路面的排水和降噪功能。研究结果表明:采用0.2kg·m^(-2)的黏层油用量,可保证上、下排水层的层间透水性和黏结性;双层排水沥青路面具有更加优异的排水、降噪功能。
In order to improve the performance and service of Ningsuxu expressway,an overlay of porous asphalt comprised of a PAC-13 layer and a PAC-20 layer was conducted on the existing pavement for structural reinforcement.The mix design for porous asphalt mixture was carried out;the bonding properties between layers were analyzed,as well as the performance of the double-layered porous asphalt pavement in drainage and noise reduction.The results show that an amount of tack coat at 0.2 kg·m^-2 can ensure the water permeability and bonding properties between the upper and lower drainage layers,and porous asphalt pavement with double layers shows excellent performance in drainage and noise reduction.
作者
段宝东
李明亮
李俊
曹东伟
尘福涛
DUAN Bao-dong1 , LI Ming-liang2 , LI Jun2 , CAO Dong-wei2 , CHEN Fu-tao2(1. Jiangsu Ningsuxu Expressway Co. , Ltd. , Suqian 223800, Jiangsu, China; 2. Research Institute of Highway of Ministry of Transport, Beijing 100088, Chin)
出处
《筑路机械与施工机械化》
2018年第4期82-85,91,共5页
Road Machinery & Construction Mechanization
基金
交通运输部企业技术创新项目(2015315Q11020)
交通运输部科技成果推广项目(2013316T05010)
关键词
双层排水沥青路面
罩面
黏结性能
降噪
double-layered porous asphalt pavement
overlay
bonding property
noise reduction
