摘要
主要介绍了排水性沥青路面的研究现状,特别是材料组成及其对排水性沥青路面性能的影响。以张石高速为实例,采用均匀试验的试验方法,分析得到了级配空隙率经验公式,利用该公式可以得到目标级配。除此之外,通过一系列的试验研究得到了空隙率和排水效能的数量关系公式。结果表明,排水性沥青路面有着很好的表面特性,为了解决由于大的空隙率引起的性能缺陷,建议采用高弹沥青以保证高的密度、稳定性和耐久性。
This paper deals with the present research, especially the material composition and its impacts on the performance of porous asphalt pavement. In this study, based on Zhangshi Highway as example, the empirical equation of air void versus gradation was derived fi＇om uniform experimental analysis so that the target gradation could be achieved by using the formula. In addition, the quantitative relationship between air void and drainage efficiency is obtained by a series of experimental studies. The results show that the porous asphalt pavement exhibits good surface characteristics,to compensate disadvantages induced by high void ratio, high viscosity bitumen is strongly recommended to ensure high intensity, stability and durability
出处
《工程建设与设计》
2016年第10期78-80,共3页
Construction & Design for Engineering
关键词
沥青路面
排水性材料
空隙率
排水
asphalt pavements
porous materials
void ratio
drainage
