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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    Title :

    Effect of Surface Texture Variation on Skid Resistance of Asphalt Pavement


    Contributors:
    Zhang, Han-Yu (author) / Chen, Xian-Hua (author) / Xu, Gang (author) / Huang, Di (author) / He, Jia-Chen (author)

    Conference:

    19th COTA International Conference of Transportation Professionals ; 2019 ; Nanjing, China


    Published in:

    CICTP 2019 ; 987-998


    Publication date :

    2019-07-02




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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