Abstract: In order to solve the problem of storage stability in anionic emulsified asphalt application, the test instruments such as optical microscope, laser particle size analyzer and storage stability tester were used to analyze the influence of raw materials, preparation process and storage environment on the storage stability of self-made anionic emulsified asphalt. The test results show that when the dosage of emulsifier, stabilizer and antifoaming agent are 3.0%, 0.1% and 0.1% respectively, the soaping temperature is 40 ℃, the asphalt temperature is 130 ℃ and the shearing time is 90s, the prepared emulsified asphalt has good storage stability. Microscopic analysis results show that the prepared emulsified asphalt has smaller particle size, more uniform distribution and better storage stability.

Key words: highway engineering, anionic, emulsified asphalt, storage stability, influencing factors

摘要： 为了解决阴离子乳化沥青应用中储存稳定性问题，采用光学显微镜、激光粒度分析仪及储存稳定性测试仪等试验仪器，分析原材料、制备工艺及储存环境对自制阴离子乳化沥青储存稳定性的影响。实验结果表明：乳化剂、稳定剂和消泡剂掺量分别为3.0%、0.1%和0.1%，皂液配置温度40 ℃、沥青温度130 ℃，剪切时间90 s时，制备的乳化沥青储存稳定性较好；微观分析结果表明制备的乳化沥青粒径较小，分布较为均匀，储存稳定性较好。

关键词: 道路工程, 阴离子, 乳化沥青, 储存稳定性, 影响因素