再生沥青混合料配合比设计参数研究  

Research on mix design parameters of recycled asphalt mixture

作　　者：戴胜 姚晓光[2,3] 王燕 张争奇[4] 栗培龙[4] DAI Sheng;YAO Xiaoguang;WANG Yan;ZHANG Zhengqi;LI Peilong(Zhuzhou City Planning and Design Institute,Zhuzhou 412000,China;School of Geographic Information and Tourism,Chuzhou University,Chuzhou 239000,China;Jiangsu Sinoroad Engineering Research Institute,Nanjing 211800,China;Key Laboratory of Highway Engineering in Special Region of Ministry of Education, Chang’an University,Xi’an 710064,China)

机构地区：[1]株洲市规划设计院,湖南株洲412000 [2]滁州学院地理信息与旅游学院,安徽滁州239000 [3]江苏中路工程技术研究院,南京211800 [4]长安大学特殊地区公路工程教育部重点实验室,西安710064

出　　处：《功能材料》2018年第9期9141-9147,共7页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(51008031);安徽省教育厅自然科学研究资助项目(KJ2016B02);交通运输部应用基础研究资助项目(2014319812151)

摘　　要：为弥补目前规范中再生沥青混合料配合比设计过程的不足,基于厂拌热再生技术对再生料配合比设计参数展开研究。根据回收SBS改性沥青混合料燃烧炉试验结果发现,路面在使用一定年限后,混合料的油石比降低,集料有细化现象,其中大粒径集料较易细化成中等粒径的集料,中等粒径的集料细化速度变缓,小粒径集料则基本不变;此外,再生料级配和最佳油石比的大小与其集料密度、最大理论相对密度关系密切,根据统计学原理及大量数据分析可知,使用"比例法"、"流程法"分别确定集料密度值和最大理论相对密度值更切合实际。In order to make up for the deficiencies of the design process of recycled asphalt mixtures in the current standard,the mix design parameters of recycled asphalt mixture was researched on the basis of the hot mix plant recycling technology in this paper.According to the burning furnace test results of the reclaimed SBS modified asphalt mixture,it is found that after using a certain number of years,the ratio of oil to stone of the mixture has decreased.The aggregate has the phenomenon of refinement,which the large particle size aggregate is easier to be refined into the medium particle size Aggregate,then medium particle size aggregate slowed down,small particle aggregate is basically unchanged finally.In addition,the size of reclaimed material and the ratio of the best oil to stone are closely related to the aggregate density and the maximum theoretical relative density of the reclaimed material.According to the statistical principle and the large amount of data analysis,it is more realistic that aggregate density and the maximum theoretical relative density are decided by“proportion method”and“process method”.

关 键 词：道路工程 再生沥青混合料 配合比 比例法 流程法 

分 类 号：U416[交通运输工程—道路与铁道工程]