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Open AccessReview

Research Progress on Skid Resistance of Basic Oxygen Furnace (BOF) Slag Asphalt Mixtures

1
School of Transportation, Wuhan University of Technology, Wuhan 430063, China
2
School of Materials Science and Engineering, Chang’an University, Xi’an 710061, China
3
Yunnan Communications Investment & Construction Group Co., Ltd., Kunming 650228, China
4
Road Network Monitoring and Emergency Command Center of Yunnan Provincial Department of Transportation, Kunming 650200, China
5
School of Civil Engineering and Architecture, Nanchang University, Nanchang, 330031, China
*
Authors to whom correspondence should be addressed.
Materials 2020, 13(9), 2169; https://doi.org/10.3390/ma13092169
Received: 19 March 2020 / Revised: 21 April 2020 / Accepted: 6 May 2020 / Published: 8 May 2020
(This article belongs to the Section Construction and Building Materials)
In order to ensure the safety of traffic, asphalt pavement is commonly required to utilize aggregates with excellent anti-abrasion property. This results in the lack of high-quality aggregates. The incorporation of solid waste in the aggregates is regarded as a high potential alternative for solving this problem. Since its material properties, such as rough surface, high Polished Stone Value (PSV) and the excellent adhesion property of asphalt, Basic Oxygen Furnace (BOF) slag can effectively improve the skid resistance of asphalt mixtures. First, the material properties of BOF slag are reviewed in this study. Then, the skid resistance of asphalt mixtures and aggregates are commendably evaluated by the Polished Stone Value test, Wehner/Schulze Tester, Aachen Polishing Machine, British Pendulum Test and Sand Patch test. The physical and mechanical properties of BOF slag play a key role in asphalt mixtures. This review found that the skid resistance mechanism of the BOF slag asphalt mixture is governed by factors such as BOF slag properties, incorporation methods and gradation types. Finally, the economic and environmental benefits of BOF slag asphalt mixtures were discussed. In addition, the function of gas catalysis and the melting of ice and snow can be added to the BOF slag asphalt mixture for a cleaner development in engineering. Furthermore, the existing problems, research directions and corresponding measures in this field are directed towards more durable and functional asphalt pavement construction. View Full-Text
Keywords: road engineering; asphalt mixtures; BOF slag; skid resistance; differential polishing principle road engineering; asphalt mixtures; BOF slag; skid resistance; differential polishing principle
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MDPI and ACS Style

Li, S.; Xiong, R.; Zhai, J.; Zhang, K.; Jiang, W.; Yang, F.; Yang, X.; Zhao, H. Research Progress on Skid Resistance of Basic Oxygen Furnace (BOF) Slag Asphalt Mixtures. Materials 2020, 13, 2169.

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