再生沥青混合料理论最大相对密度确定方法研究  

Research on Determination Method of Theoretical Maximum Specific Gravity Recycled Asphalt Mixture

作　　者：蒋煜 郭彧 朱煜 JIANG Yu;GUO Yu;ZHU Yu(East China Jiaotong University,Nanchang Jiangxi 330100,China;Guizhou Engineering Co.,Ltd.of China Railway Fifth Bureau Group,Anshun Guizhou 562102,China)

机构地区：[1]华东交通大学,江西南昌330100 [2]中铁五局集团贵州工程有限公司,贵州安顺562102

出　　处：《交通节能与环保》2020年第1期96-100,共5页Transport Energy Conservation & Environmental Protection

摘　　要：再生沥青混合料内部孔隙较多,掺入的旧料为沥青与集料裹合物,依据规范现有的计算法与试验法难以确定其理论最大相对密度。基于沥青混合料理论最大相对密度计算法和实测法测定原理,通过新拌不同级配类型的沥青混合料,建立理密计算值与实测值关系系数,以再生沥青混合料实测值计算真实值,修正再生沥青混合料理密计算和试验公式。There are many pores in the recycled asphalt mixture,and the mixed RAP is a coating material between asphalt and aggregate,it’s difficult to determine the theoretical maximum specific gravity according to the existing calculation method and test method. Based on the theoretical maximum specific gravity meter algorithm of asphalt mixture theory and the principle of measurement method,by mixing different types of graded asphalt mixtures,and establish the coefficient of relation between the calculated value and the measured value. The measured value of recycled asphalt mixture is used to calculate the true value,and the theoretical maximum specific gravity calculation and test formula of recycled asphalt mixture are modified.

关 键 词：再生沥青混合料 最大相对密度 计算法 真空法 溶剂法 

分 类 号：U416.26[交通运输工程—道路与铁道工程]