DOI QR코드

DOI QR Code

Degradation mechanisms of concrete subjected to combined environmental and mechanical actions: a review and perspective

  • Ye, Hailong (Department of Civil Engineering, The University of Hong Kong) ;
  • Jin, Nanguo (Department of Civil and Architectural Engineering, Zhejiang University)
  • 투고 : 2018.04.21
  • 심사 : 2019.02.06
  • 발행 : 2019.03.25

초록

In-service reinforced concrete structures are simultaneously subjected to a combination of multi-deterioration environmental actions and mechanical loads. The combination of two or more deteriorative actions in environments can potentially accelerate the degradation and aging of concrete materials and structures. This paper reviews the coupling and synergistic mechanisms among various deteriorative driving forces (e.g. chloride salts- and carbonation-induced reinforcement corrosion, cyclic freeze-thaw action, alkali-silica reaction, and sulfate attack). In addition, the effects of mechanical loads on detrimental environmental factors are discussed, focusing on the transport properties and damage evolution in concrete. Recommendations for advancing current testing methods and predictive modeling on assessing the long-term durability of concrete with consideration of the coupling effects are provided.

키워드

과제정보

연구 과제 주관 기관 : Hong Kong Research Grants Council, National Natural Science Foundation of China

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피인용 문헌

  1. Influence of the Type of Cement and the Addition of an Air-Entraining Agent on the Effectiveness of Concrete Cover in the Protection of Reinforcement against Corrosion vol.14, pp.16, 2021, https://doi.org/10.3390/ma14164657