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Jul 2, 2019
Effect of Surface Texture Variation on Skid Resistance of Asphalt Pavement
Authors: Han-Yu Zhang [email protected], Xian-Hua Chen [email protected], Gang Xu [email protected], Di Huang [email protected], and Jia-Chen He [email protected]Author Affiliations
Publication: CICTP 2019
Abstract
Surface texture is significant in skid resistance of asphalt pavement. This paper investigates the effect of surface texture variation on skid resistance of asphalt pavement during service. Texture depth (TD), British pendulum number (BPN), and dynamic friction coefficient (DF) of two different asphalt mixtures were tested by laboratory experiments under different polishing times. Fractal dimension was calculated according to the surface texture data of specimens obtained by 3D laser scanner. A numerical model of road surface texture and friction coefficient was established, and the correlation between calculated friction coefficient and friction coefficient measured in practice was analyzed. The results show that the fractal dimension and skid resistance of asphalt pavement both weakened with increased polishing time. It was also found that fractal dimension is in good correlation with skid resistance indicators. Moreover, the proposed numerical model can effectively predict road surface friction coefficient from macro- and micro-texture at any speed.
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© 2019 American Society of Civil Engineers.
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Published online: Jul 2, 2019
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School of Transportation, Southeast Univ., Nanjing 211189, China. E-mail: [email protected]
School of Transportation, Southeast Univ., Nanjing 211189, China. E-mail: [email protected]
School of Transportation, Southeast Univ., Nanjing 211189, China. E-mail: [email protected]
School of Transportation, Southeast Univ., Nanjing 211189, China. E-mail: [email protected]
LIN Tung-Yen and LI Guo-Hao Consultants, Ltd., Shanghai 200437, China. E-mail: [email protected]
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