Probabilistic evaluation of initiation time of chloride-induced corrosion

Dimitri V. Val, Pavel A. Trapper

Research output: Contribution to journalArticlepeer-review

167 Scopus citations


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.

Original languageEnglish
Pages (from-to)364-372
Number of pages9
JournalReliability Engineering and System Safety
Issue number3
StatePublished - 1 Mar 2008
Externally publishedYes


  • Chlorides
  • Concrete
  • Corrosion
  • Probabilistic models
  • Reinforced

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Industrial and Manufacturing Engineering


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