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ZHANG Shu, HU Sheng-neng, ZHAO Hong-duo, ZHAO Dui-jia. Characteristic of crack spacing for continuously reinforced concrete pavement[J]. Journal of Traffic and Transportation Engineering, 2013, 13(4): 1-7. doi: 10.19818/j.cnki.1671-1637.2013.04.001
Citation: ZHANG Shu, HU Sheng-neng, ZHAO Hong-duo, ZHAO Dui-jia. Characteristic of crack spacing for continuously reinforced concrete pavement[J]. Journal of Traffic and Transportation Engineering, 2013, 13(4): 1-7. doi: 10.19818/j.cnki.1671-1637.2013.04.001
shu

Characteristic of crack spacing for continuously reinforced concrete pavement

doi: 10.19818/j.cnki.1671-1637.2013.04.001
  • 1.

    Key Laboratory of Road and Traffic Engineering of Ministry of Education, Tongji University, Shanghai 201804, China

  • 2.

    Key Laboratory of Highway Construction and Maintenance Technology in Loess Region, Shanxi Transportation Research Institute, Taiyuan 030006, Shanxi, China

  • 3.

    School of Civil Engineering and Communications, North China University of Water Resources and Electric Power, Zhengzhou 450011, Henan, China

More Information
  • Author Bio:

    ZHANG Xiao(1980-), male, engineer, doctoral student, +86-351-7635087, xiaozhang2008@gmail.com

    ZHAO Hong-duo(1976-), male, professor, PhD, +86-21-69580415, hdzhao@tongji.edu.cn

  • Received Date: 2013-03-18
  • Publish Date: 2013-08-25
    Abstract
  • The characteristics of average crack spacing models for continuously reinforced concrete pavement (CRCP) in AASHTO—1993 and Mechanistic-Empirical Pavement Design Guide (MEPDG) were analyzed.A total of 1 171crack spacing data were collected from 29CRCP experimental sections.Classifying, statistical analysis, distribution fitting and variance analysis were conducted by using the data.The parameters of AASHTO—1993and MEPDG models were determined respectively, and two models were validated by using the data.Research result shows that cracks can be classified into six types according to the patterns, and CRCP crack spacing distribution is subject to four-parameter Dagum distribution.The differences of CRCP average crack spacings for different slab thicknesses at the same reinforcement ratio are not significant.AASHTO—1993model overestimates average crack spacing with an error of 0.13m, MEPDG model tremendously underestimates average crack spacing with an error of 1.7m.

     

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