DOI QR코드

DOI QR Code

Experimental study on the dynamic behavior of pervious concrete for permeable pavement

  • Bu, Jingwu (School of Hydraulic Energy and Power Engineering, Yangzhou University) ;
  • Chen, Xudong (College of Civil and Transportation Engineering, Hohai University) ;
  • Liu, Saisai (College of Civil and Transportation Engineering, Hohai University) ;
  • Li, Shengtao (College of Civil and Transportation Engineering, Hohai University) ;
  • Shen, Nan (College of Civil and Transportation Engineering, Hohai University)
  • 투고 : 2017.02.21
  • 심사 : 2018.09.11
  • 발행 : 2018.09.25

초록

As the concept of "sponge city" is proposed, the pervious concrete for permeable pavement has been widely used in pavement construction. This paper aims at investigating the dynamic behavior and energy evolution of pervious concrete under impact loading. The dynamic compression and split tests are performed on pervious concrete by using split Hopkinson pressure bar equipment. The failure criterion on the basis of incubation time concept is used to analyze the dynamic failure. It is demonstrated that the pervious concrete is of a strain rate sensitive material. Under high strain rate loading, the dynamic strength increases while the time to failure approximately decreases linearly as the strain rate increases. The predicted dynamic compressive and split tensile strengths based on the failure criterion are in accordance with the experimental results. The total damage energy is found to increase with the increasing of strain rate, which means that more energy is needed to produce irreversible damage as loading rate increases. The fractal dimensions are observed increases with the increasing of impact loading rate.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China

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피인용 문헌

  1. Fractal equations to represent optimized grain size distributions used for concrete mix design vol.26, pp.6, 2018, https://doi.org/10.12989/cac.2020.26.6.505