Fiber-Reinforced Asphalt Mixture Design on Anti-Skid Surfacing for Field Testing High-Speed Vehicles on Pavements

被引:5
|
作者
Liu, Hao [1 ,2 ]
Li, Yunyu [3 ]
Li, Jixin [1 ]
Wang, Feng [2 ]
Peng, Longfan [1 ,2 ]
Li, Chao [2 ]
Wang, Tianlei [2 ]
Lin, Juntao [4 ]
机构
[1] China Construct Second Engn Bur Ltd, Beijing 100176, Peoples R China
[2] Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan 430070, Peoples R China
[3] Wuhan Univ Technol, Sch Transportat & Logist Engn, Wuhan 430070, Peoples R China
[4] China Univ Geosci Wuhan, Fac Engn, Wuhan 430074, Peoples R China
基金
中国国家自然科学基金;
关键词
fiber; asphalt mixture; skid resistance; vehicles testing field pavement; surface texture; BINDER;
D O I
10.3390/ma16020549
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Fiber can absorb asphalt binder and therefore reinforce and stabilize the asphalt mixture structure and also prevent the asphalt from the leaking, which occurs in the process of mixing and transport. In this study, three kinds of fiber (polyester fiber, polypropylene fiber, and lignin fiber) are used to evaluate the relationship between the fiber types and mechanic performance of SMA-13 fiber asphalt mixture, which is specially designed for field tests of high-speed vehicles on pavements. The micro-surface characteristics of fiber and aggregates were studied by SEM and image analysis. Marshall stability and splitting strength were used to measure the properties of the asphalt mixture. In addition, a field test, including measures for curve-section edge, curve-section center, straight-section edge, and straight-section center, was conducted to evaluate the skid resistance of the high-speed vehicles that test field pavement. The results show that the Marshall stabilities of asphalt mixture with three kinds of fibers have been improved, whereas the stability of asphalt mixture prepared by polypropylene fiber and polyester fiber particularly increased before immersion. Among the three kinds of fiber asphalt mixtures, the polyester fiber asphalt mixture has enhanced water susceptibility. Skid resistance in the field test indicated that high skid resistance and good surface-texture depth were achieved.
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页数:13
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