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WU Hao, ZHANG Jiu-peng, WANG Bing-gang. Relationship between characteristic of void and road performance of porous asphalt mixture[J]. Journal of Traffic and Transportation Engineering, 2010, 10(1): 1-5. doi: 10.19818/j.cnki.1671-1637.2010.01.001
Citation: WU Hao, ZHANG Jiu-peng, WANG Bing-gang. Relationship between characteristic of void and road performance of porous asphalt mixture[J]. Journal of Traffic and Transportation Engineering, 2010, 10(1): 1-5. doi: 10.19818/j.cnki.1671-1637.2010.01.001
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Relationship between characteristic of void and road performance of porous asphalt mixture

doi: 10.19818/j.cnki.1671-1637.2010.01.001
  • 1.

    Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang'an University, Xi'an 710064, Shaanxi, China

  • 2.

    Department of Transportation of Henan Province, Zhengzhou 450052, Henan, China

More Information
  • Author Bio:

    WU Hao(1973-), male, senior engineer, doctoral student, +86-29-62630058, fjwu26@live.cn

    WANG Bing-gang(1934-), male, professor, +86-29-82336162, wangbinggang999@163.com

  • Received Date: 2009-11-11
  • Publish Date: 2010-02-25
    Abstract
  • Three Marshall specimens of OGFC-13 with different gradations were selected, and their internal void distributions were obtained by using X-CT technique and digital graphic processing technique.The fractal characteristics of voids were computed by fractal theory, and the relationship between the void characteristics and the road performances for porous asphalt mixtures were analyzed.It is indicated that the split strength of porous asphalt mixture decreases with the increase of porosity, but increases with the increase of the fractal dimension of void profile.The permeation property increases with the increase of porosity, but decreases with the increase of the fractal dimension of void profile.The fractal dimension can explain the reason of the road performance difference for the mixtures with same porosity, so the fractal dimension may be adopted to analyze the void distribution and the changing law of road performance for porous asphalt mixture.

     

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