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ZHAO Fang-ran, DU Shi-mei, LIU Xin-chen, AN Wen-bo, XU Xiao-lei. Damage characteristics of cement concrete pavement for airfield resulted from different de-icing techniques[J]. Journal of Traffic and Transportation Engineering, 2015, 15(4): 18-25. doi: 10.19818/j.cnki.1671-1637.2015.04.003
Citation: ZHAO Fang-ran, DU Shi-mei, LIU Xin-chen, AN Wen-bo, XU Xiao-lei. Damage characteristics of cement concrete pavement for airfield resulted from different de-icing techniques[J]. Journal of Traffic and Transportation Engineering, 2015, 15(4): 18-25. doi: 10.19818/j.cnki.1671-1637.2015.04.003
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Damage characteristics of cement concrete pavement for airfield resulted from different de-icing techniques

doi: 10.19818/j.cnki.1671-1637.2015.04.003

  • School of Airport, Civil Aviation University of China, Tianjin 300300, China

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  • Author Bio:

    ZHAO Fang-ran(1960-), male, professor, +86-22-24092475, frzhao@cauc.edu.cn

  • Received Date: 2015-02-12
  • Publish Date: 2015-08-25
    Abstract
  • Hot air de-icing and chemical de-icing with ethylene glycol and carbamide were simulated for cement concrete pavement of airfield, the mass loss and strength decrease ratio of each concrete specimen were tested, and the the damage rules of de-icing methods and de-icing numbers on cement concrete pavement were analyzed.Analysis result shows that hot air de-icing slowly damages cement concrete specimen, the distinct mass loss only appears after 45 times hot de-icing, but hot air de-icing severely damages the inside structure, and the strength decrease ratio is more than 35% after 50 times hot air de-icing.Though the strength decrease ratio of cement concrete specimen is less than 20% after 50 times chemical de-icing, but the corrosive mass loss of specimen surface is remarkable, and is 8.5%after 50 times carbamide de-icing and is5 times greater than the value after hot air de-icing.Therefore, chemical de-icing is more reasonable than hot air de-icing for protecting the structural strength of cement concrete pavement.On the other hand, hot air de-icing is preferred because of considering aeroengine damage induced by concrete spall on airfield runway, but its influence on pavement structural strength should be paid attention to.

     

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