The waterborne epoxy resin(EP) modified emulsified asphalt was prepared using the method of first emulsification and then modification.The performance of the emulsified asphalt with different contents of waterborne EP was studied,and the optimum content of waterborne EP was determined to be 10% (mass ratio).The mix design of waterborne EP modified emulsified asphalt mixture was carried out by modified Marshall test.The optimum emulsion content was 9% (mass ratio) and the compaction time was 4h.The test results showed that the high-temperature performance and fatigue performance of the emulsified asphalt mixture were significantly improved compared with neat asphalt and emulsified asphalt mixture,and its low-temperature performance was good.The water stability of the emulsified asphalt mixture was basically equivalent to that of neat asphalt mixture and better than emulsified asphalt mixture.
Wang Panpan, Wang Shuangshuang, Zhen Shaohua
. Study on design and performance of waterborne EP modified emulsified asphalt mixture[J]. New Chemical Materials, 2021
, 49(1)
: 273
-278
.
DOI: 10.19817/j.cnki.issn 1006-3536.2021.01.060
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