Journal of South China University of Technology (Natural Science Edition) ›› 2013, Vol. 41 ›› Issue (4): 107-112.doi: 10.3969/j.issn.1000-565X.2013.04.018

• Traffic & Transportation Engineering • Previous Articles     Next Articles

Anti-Slide Properties of Meso-Structure of Dense Skeleton Asphalt Mixture

Qiu Zhi-xiong Li Zhi Li Dong-hai Zhang Xiao-ning Liu Tao   

  1. School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2012-08-06 Revised:2013-01-17 Online:2013-04-25 Published:2013-03-01
  • Contact: 李智(1971-)，男，博士，副教授，主要从事道路工程材料设计与性能评价研究． E-mail:lizhi@scut.edu.cn
  • About author:邱志雄(1976-)，男，博士生，高级工程师，主要从事道路工程材料研究．E-mail:xiong1111@163．com
  • Supported by:

    国家自然科学基金重点资助项目( 51038004) ; 广东省交通厅重点工程项目( 2009-01-003) ; 华南理工大学中央高校基本科研业务费专项资金资助项目( 2009ZM0099)

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Abstract:

The research on the meso-structure of asphalt mixture helps to describe the anti-slide structure and itsevolution more comprehensively and accurately and solve the prominent problem of how to design durable and structure-rich asphalt-layer material in lack of high-quality anti-slide stone material.In this paper,four kinds of denseskeleton asphalt mixtures GAC-13 with non-continuous gradation are designed,and a test device for rub evaluationis developed to simulate the traffic load and environment.Then,by analyzing the specimens in different rub stageswith high-accuracy industry CT scan,a method,which adopts the affecting-zone depth and the decay rate to evaluatethe anti-slide properties of meso-structure of asphalt mixture,is put forward.The results show that GAC-13 with acomplete granular gap of 2.36mm helps to obtain more ideal anti-slide structure.

Key words: asphalt mixture, anti-slide structure, meso-structure, granular area ratio, decay rate

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