乳化沥青破乳速度定量研究进展  

Research Progress on Guantitative Measure of Demulsification Rate of Emulsified Asphalt

作　　者：王怀庆 马培建[1] WANG Huaiqing;MA Peijian(School of Civil Engineering of Qingdao University of Technology,Qingdao 266011,Shandong,China)

机构地区：[1]青岛理工大学土木工程学院,山东青岛266011

出　　处：《路基工程》2021年第3期19-23,共5页Subgrade Engineering

摘　　要：破乳速度是乳化沥青性能的重要指标,为了控制乳化沥青在施工中的破乳速度,介绍了目前乳化沥青破乳机理和影响乳化沥青破乳速度的因素,包括乳化剂、集料、pH值、温度、添加剂等。由于现行测量方法无法对乳化沥青破乳速度定量测定,因此分析了新型定量测定乳化沥青破乳速度的方式。结果表明:这些因素对于乳化沥青的破乳速度都存在影响,道路施工时应进行综合考量。The demulsification rate is an important index of emulsified asphalt performance.In order to control the demulsification speed of emulsified asphalt in construction,this paper introduces the demulsification mechanism of emulsified asphalt and factors influencing the demulsification speed of emulsified asphalt,including emulsifier,aggregate,pH value,temperature,additives,etc.Because the current measurement methods can not quantitatively measure the demulsification rate of emulsified asphalt,a new method for quantitative determination of the demulsification rate of emulsified asphalt is analyzed.The results show that:all these factors have an impact on the demulsification speed of emulsified asphalt,which should be considered comprehensively in road construction.

关 键 词：乳化沥青 破乳速度 破乳影响因素 乳化剂 集料 PH值 定量测定 

分 类 号：TU535[建筑科学—建筑技术科学]