透水性沥青混合料目标空隙率研究  

Study of target porosity of permeable asphalt mixture

作　　者：陶志鹏 刘福明[1] 吴迪 黄志刚 张振 TAO Zhipeng;LIU Fuming;WU Di;HUANG Zhigang;ZHANG Zhen(School of Civil and Architectural Engineering,Nanchang Institute of Technology,Nanchang 330099,China;Tianquan County Transportation Bureau,Yaan 625500,China;Jiangxi Traffic Engineering Group Co.Ltd,Nanchang 330000,China)

机构地区：[1]南昌工程学院土木与建筑工程学院,江西南昌330099 [2]天全县交通运输局,四川雅安625500 [3]江西省交通工程集团有限公司,江西南昌330000

出　　处：《南昌工程学院学报》2021年第3期37-41,108,共6页Journal of Nanchang Institute of Technology

基　　金：江西省交通厅科技计划项目(2019H0005,2016T0033).

摘　　要：为了更好地确定透水性沥青混合料的目标空隙率,设计了测量连通空隙率的试验,采用相同的原材料、级配组成以及制备方法,按照不同的油石比,制备了6组不同空隙率的透水性沥青混合料试件并测定了它们的空隙率、连通空隙率以及2.0%坡度下的透水系数;对三者的关联性进行了研究分析,结果表明,空隙率与连通空隙率呈线性关系,空隙率与透水系数呈指数关系。基于降雨强度,推导出了横坡为2.0%的透水性沥青路面混合料的目标空隙率的设计公式。In order to better determine target porosity of permeable asphalt mixture,we designed a test method to measure connected porosity,used the same raw material,gradation composition and preparation method according to different asphalt aggregate ratio,made six groups of different porosity test specimen of permeable asphalt mixture,measured their porosity,connected porosity and the permeable coefficient under 2.0%slope,and studied their correlation.The results show that porosity and connected porosity is linear relation,porosity and permeable coefficient is exponential relationship.Based on rainfall intensity,this article inferred design formula which targeted porosity of permeable asphalt mixture when transverse slope was 2.0%.

关 键 词：道路工程 目标空隙率 透水性能 降雨强度 

分 类 号：U416[交通运输工程—道路与铁道工程]