Journal of South China University of Technology(Natural Science Edition) ›› 2012, Vol. 40 ›› Issue (10): 166-173.doi: 1000-565X(2012)10-0166-08

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Basic Methods of Digital Image Technology for Material Structure of Asphalt Mixtures

Zhang Xiao-ning   

  1. School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2012-07-10 Online:2012-10-25 Published:2012-09-01
  • Contact: 张肖宁(1951-) ，男，教授，博士生导师，主要从事沥青及沥青混合料研究． E-mail:prozxn@163. com
  • About author:张肖宁(1951-) ，男，教授，博士生导师，主要从事沥青及沥青混合料研究．
  • Supported by:

    国家自然科学基金重点项目( 51038004) ; 国家西部交通建设科技项目( 2009318000078)

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Abstract:

For asphalt mixtures,the digital image technology has been used to obtain the internal structure,analyze the volume parameters and complete the computer-assisted design. These aspects have been hot research topics in the asphalt pavement technology area. In this paper,the relevant research results achieved by the author and his team are introduced,focusing on: ( 1) the statistics of the volumetric component of asphalt mixtures,the identification of the different components of asphalt mixtures and the extraction of the morphological characteristics of coarse aggregates,which are all based on the 2D digital image technology; ( 2) the 3D reconstruction of the internal structure of asphalt mixtures; and ( 3) the virtual mechanics test method. Meanwhile,the cases for the industrial applications of these research results are presented.

Key words: road engineering, asphalt mixture, components of material structure, industrial computed tomography, research progress