A simplified probabilistic model for the combined action of carbonation and chloride ingress

Xingji Zhu, Goangseup Zi, Lianfang Sun, Ilhwan You

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

This paper presents an improved numerical model for the reliability analysis of corrosion initiation due to the combined action of carbonation and chloride ingress. The coupled mechanism of carbon dioxide, chloride ions, heat and moisture is considered in the model. The probability of corrosion initiation is evaluated by means of a single limit state function in which the critical concentration of chloride ions depends on the degree of carbonation. In addition, the coupled diffusion coefficients are interpolated linearly depending on the degree of carbonation in order to simplify the structure of the model without compromising accuracy.

Original languageEnglish
Pages (from-to)327-340
Number of pages14
JournalMagazine of Concrete Research
Volume71
Issue number7
DOIs
Publication statusPublished - 2019 Apr 1

Keywords

  • carbonation
  • cement
  • cementitious materials
  • durability-related properties

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

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