高固含量乳化沥青储存稳定性影响因素研究  

Research on factors influencing storagestability of high solid content emulsified asphalt

作　　者：丁湛[1,2] 王爱波 张琳青 蒋双全 栗培龙[4] DING Zhan;WANG Ai-bo;ZHANG Lin-qing;JIANG Shuang-quan;LI Pei-long(School of Water and Environment,Chang’an University,Xi’an 710054,China;Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region,Ministry of Education,Xi’an 710054,China;Sichuan Road and Bridge(Group)Co.,Ltd.,Chengdu 610041,China;School of Highway,Chang’an University,Xi’an 710064,China)

机构地区：[1]长安大学水利与环境学院,陕西西安710054 [2]长安大学旱区地下水文与生态效应教育部重点实验室,陕西西安710054 [3]四川公路桥梁建设集团有限公司,四川成都610041 [4]长安大学公路学院,陕西西安710064

出　　处：《应用化工》2023年第4期1060-1065,共6页Applied Chemical Industry

基　　金：四川省交通科技项目(2022-ZL-13);四川路桥集团科技项目(KY2021SRBG-10-11)。

摘　　要：探究乳化剂掺量、乳化液pH、沥青温度、剪切时间对高固含量乳化沥青储存稳定性的影响。结果表明,各因素均可提高储存稳定性,随乳化剂掺量增加,乳化沥青稳定性呈现先增加后保持稳定趋势;随乳化液pH、沥青温度、剪切时间的增加,乳化沥青稳定性呈现先升高后降低趋势。乳化沥青制备工艺的最佳条件为pH值2.7,沥青温度139℃,剪切时间83 s。The effects of emulsifier content,emulsion pH,asphalt temperature and shear time on the storage stability of emulsified asphalt with high solid content were investigated.The results show that all factors can improve the storage stability.With the increase of emulsifier content,the stability of emulsified asphalt increases first and then keeps stable.With the increase of pH of emulsion solution,asphalt temperature and shear time,the stability of emulsified asphalt increases first and then decreases.The optimum conditions for preparation of emulsified asphalt are pH value 2.7,asphalt temperature 139℃and shear time 83 s.

关 键 词：乳化沥青 高固含量 储存稳定性 影响因素 响应面法 

分 类 号：TQ437[化学工程] TQ211[交通运输工程—道路与铁道工程] U414