微表处乳化沥青高温性能提升方案研究  

Research on High Temperature Performance Improvement Scheme of Micro-surfacing Emulsified Asphalt

作　　者：陆生华 朱鹏程 徐永成 张鑫玉 LU Shenghua;ZHU Pengcheng;XU Yongcheng;ZHANG Xinyu(Nanjing Road and Bridge Engineering Co.,Ltd.,Nanjing 211131,Jiangsu,China;College of Water Conservancy&Hydropower Engineering of Hohai University,Nanjing 210098,Jiangsu,China)

机构地区：[1]南京市路桥工程有限公司,江苏南京211131 [2]河海大学水利水电学院,江苏南京210098

出　　处：《工程技术研究》2024年第23期110-112,共3页Engineering and Technological Research

摘　　要：针对传统乳化沥青高温性能差的问题,文章以软化点、恩格拉黏度和破乳时间作为评价指标,通过室内试验,研究了SBS改性剂的类型和掺量对改性乳化沥青性能的影响,分析其高温性能影响趋势,确定乳化沥青高温性能提升方案。研究结果表明,随着SBS改性剂掺量的增加,软化点、恩格拉黏度和破乳时间呈上升趋势,选择掺量为4.8%的YH-791型改性剂作为最终优选材料。Aiming at the problem of poor high temperature performance of traditional emulsified asphalt,this paper takes softening point,Engler viscosity and demulsification time as evaluation indexes,studies the influence of the type and content of SBS modifier on the performance of modified emulsified asphalt through indoor test,analyzes the influence trend of its high temperature performance,and determines the high temperature performance improvement scheme of emulsified asphalt.The research results show that with the increase of SBS modifier content,the softening point,Engler viscosity and demulsification time show an increasing trend,and YH-791 modifier with 4.8%content is selected as the final preferred material.

关 键 词：乳化沥青 SBS改性剂 高温性能 

分 类 号：U416.217[交通运输工程—道路与铁道工程]