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Probabilistic evaluation of initiation time of chloride-induced corrosion

Author

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  • Val, Dimitri V.
  • Trapper, Pavel A.

Abstract

The paper presents a model for chloride ingress into concrete. The model accounts for two mechanisms which control the chloride ingress—diffusion and convection. Using one-dimensional (1-D) formulation of the model, the influence of chloride binding and ambient humidity on chloride ingress into concrete has been investigated. Based on results of this investigation parameters for probabilistic analysis have been selected. Probabilistic evaluation of the time to corrosion initiation has then been carried out for a reinforced concrete (RC) wall (1-D problem) and a RC column (2-D problem) in a marine environment. Results of the analysis show that for the same thickness of the concrete cover the probability of corrosion initiation in the corner reinforcing bars of the RC column is much higher than in reinforcing bars in the middle part of the RC wall. The results demonstrate the importance of 2-D modelling for correct prediction of corrosion initiation in such RC elements as columns and beams.

Suggested Citation

  • Val, Dimitri V. & Trapper, Pavel A., 2008. "Probabilistic evaluation of initiation time of chloride-induced corrosion," Reliability Engineering and System Safety, Elsevier, vol. 93(3), pages 364-372.
    • Handle: RePEc:eee:reensy:v:93:y:2008:i:3:p:364-372
    DOI: 10.1016/j.ress.2006.12.010
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    Cited by:

    1. Xingji Zhu & Zaixian Chen & Hao Wang & Yabin Chen & Longjun Xu, 2018. "Probabilistic Generalization of a Comprehensive Model for the Deterioration Prediction of RC Structure under Extreme Corrosion Environments," Sustainability, MDPI, vol. 10(9), pages 1-17, August.
    2. Chao Jiang & Jing Fang, 2020. "Time-Dependent Reliability-Based Service Life Assessment of RC Bridges Subjected to Carbonation under a Changing Climate," Sustainability, MDPI, vol. 12(3), pages 1-18, February.
    3. Vishwanath, B Sharanbaswa & Banerjee, Swagata, 2023. "Considering uncertainty in corrosion process to estimate life-cycle seismic vulnerability and risk of aging bridge piers," Reliability Engineering and System Safety, Elsevier, vol. 232(C).
    4. Bigaud, David & Ali, Osama, 2014. "Time-variant flexural reliability of RC beams with externally bonded CFRP under combined fatigue-corrosion actions," Reliability Engineering and System Safety, Elsevier, vol. 131(C), pages 257-270.

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