Effects of Various Modifiers on the Bond Property and Moisture Damage Resistance of Asphalt

被引：0
|
作者：
Zhou L. [1 ]
Huang W. [1 ]
Lü Q. [1 ,2 ,3 ]
Zheng M. [4 ]
机构：
[1] Key Laboratory of Road and Traffic Engineering, Ministry of Education, Tongji University, Shanghai
[2] College of Transportation Engineering, Tongji University, Shanghai
[3] Shanghai Key Laboratory of Rail Infrastructure Durability and System Safety, Tongji University, Shanghai
[4] Sichuan Jiao Tou Construction Engineering Co., Ltd., Chengdu
来源：
Jianzhu Cailiao Xuebao/Journal of Building Materials | 2021年 / 24卷 / 02期
关键词：
Adhesion property; Asphalt; Binder bond strength test; Cohesion property; Moisture damage resistance; Road performance;
D O I：
10.3969/j.issn.1007-9629.2021.02.021
中图分类号：
学科分类号：
摘要：
The binder bond strength(BBS) test was conducted to evaluate the effects of five typical modifiers(SBS, crumb rubber, terminal blend rubber, gilsonite and polyphosphoric acid) on the cohesion and adhesion properties of asphalt respectively. Various contents were also investigated. Cantabro and wet Hamburg wheel-tracking(HWT) tests were also performed. The results show that SBS modifier would hinder the adhesion process between asphalt and aggregate, however, it enhances the cohesive performance and extends the load bearing capacity of asphalt. Both crumb rubber and terminal blend rubber harm the asphalt cohesion and adhesion behavior. Gilsonite significantly improves both the cohesion and adhesion strength while polyphosphoric acid can reduce the moisture sensitivity and improve the asphalt adhesion performance. The ranking evaluation of raveling and moisture damage resistance of different asphalt mixtures is obtained through Cantabro and wet HWT tests, and the accuracy and effectiveness of the BBS test in evaluating the asphalt raveling resistance and moisture damage resistance are valid. © 2021, Editorial Department of Journal of Building Materials. All right reserved.
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页码：377 / 384
页数：7
相关论文
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