Current researches on waterborne epoxy emulsified asphalt are not deep enough and its application is also few due to the complexity of type.Laboratory tests were therefore conducted to systematically investigate the effects of curing conditions of waterborne epoxy emulsified asphalt,dosage of waterborne epoxy resin and curing agent on the performance of emulsified asphalt by taking the penetration and ductility as the index.Meanwhile,the curing conditions and optimum formulation of waterborne epoxy emulsified asphalt were determined based on the analyses of the above laboratory tests.The results shown that the curing time of the asphalt was 6 h at 120℃.The optimum formulation of the asphalt was as follows:the dosage of the asphalt,waterborne epoxy resin and curing agent were 85%,11.1%～11.5% and 3.5%～3.9%,respectively.The penetration at 25℃,ductility at 5℃ and softening point for the evaporative residues of the asphalt with the optimum formulation were 88.0(0.1mm),96mm and 49.8℃,respectively.
Guo Liuhong
,
Zhang Shujian
,
Chen Zhongda
,
Song Yong
,
Niu Xiaohu
,
Guo Mengzhuo
,
Xue Pengtao
,
Gu Xianjun
. Curing condition and optimum formulation of waterborne epoxy emulsified asphalt[J]. New Chemical Materials, 2021
, 49(3)
: 261
-264
.
DOI: 10.19817/j.cnki.issn 1006-3536.2021.03.058
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