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Mechanical behavior and failure mechanism of recycled semi-flexible pavement material

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Abstract

The mechanical behavior and failure mechanism of recycled semi-flexible pavement material were investigated by different scales method. The macroscopic mechanical behavior of samples was studied by static and dynamic splitting tensile tests on mechanics testing system (MTS). The mechanical analysis in micro scale was carried out by material image analysis method and finite element analysis system. The strains of recycled semi-flexible pavement material on samples surface and in each phase materials were obtained. The test results reveal that the performance of recovered asphalt binder was the major determinant on the structural stability of recycled semi-flexible pavement material. The asphalt binder with high viscoelasticity could delay the initial cracking time and reduce the residual strain under cyclic loading conditions. The failure possibility order of each phase in recycled semi-flexible pavement material was asphalt binder, reclaimed aggregate, cement paste and virgin aggregate.

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Authors and Affiliations

  1. State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, China

    Qingjun Ding  (丁庆军) & Mingyu Zhao

  2. School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan, 430073, China

    Fan Shen

  3. School of Transportation, Wuhan University of Technology, Wuhan, 430070, China

    Xiaoqiang Zhang

Authors
  1. Qingjun Ding  (丁庆军)
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  2. Mingyu Zhao
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  3. Fan Shen
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  4. Xiaoqiang Zhang
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Correspondence to Qingjun Ding  (丁庆军).

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Ding, Q., Zhao, M., Shen, F. et al. Mechanical behavior and failure mechanism of recycled semi-flexible pavement material. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 30, 981–988 (2015). https://doi.org/10.1007/s11595-015-1261-z

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  • DOI: https://doi.org/10.1007/s11595-015-1261-z

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