Properties and mechanism of waterborne epoxy resin-SBR composite modified emulsified asphalt

被引：45
|
作者：
Liu, Fuqiang [1 ]
Zheng, Mulian [1 ]
Fan, Xianpeng [1 ]
Li, Hongyin [2 ]
Wang, Fei [2 ]
Lin, Xiaoyu [3 ]
机构：
[1] Changan Univ, Minist Educ, Key Lab Special Reg Highway Engn, Midsouth Erhuan Rd, Xian 710064, Shaanxi, Peoples R China
[2] SHANDONG HISPEED GRP, Jinan 250098, Shandong, Peoples R China
[3] Cent Southern Safety & Environm Technol Inst CO L, Wuhan 430051, Hubei, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2021年 / 274卷
关键词：
Micro-surfacing; Binder; Modified emulsified asphalt; Waterborne epoxy resin; SBR; Properties; Microstructure;
D O I：
10.1016/j.conbuildmat.2020.122059
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The objective of this paper is to investigate the properties and mechanism of Waterborne Epoxy Resin-SBR Composite Modified Emulsified Asphalt (WER-SCMEA), which can be used as the binder of microsurfacing. The properties of WER-SCMEA were investigated by a series of laboratory tests. The mechanism was analyzed by the fluorescence microscope and Infrared Spectroscopy. Results show that the Waterborne Epoxy Resin (WER) can improve the performance of SBR modified emulsified asphalt effectively, such as the thermal stability and adhesion. Besides, the WER system (WER and curing agent) has good dispersion and it is dispersed in asphalt evenly. However, the low temperature performance is weak. The strength mechanism of WER-SCMEA is the comprehensive effects of curing reaction, physical intertwine and chemical cross-linking reaction. Therefore, it can be concluded that the WER-SCMEA has good properties and stability. (C) 2020 Elsevier Ltd. All rights reserved.
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页数：15
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