Combined effect of carbonation and chloride ingress in concrete

Xingji Zhu, Goangseup Zi, Zhifeng Cao, Xudong Cheng

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

The combined effect of carbonation and chloride ingress in concrete is studied in this paper. Based on the change of the pore structure and the chemical equilibrium, a comprehensive model is proposed for this problem. A coupled simulation of the transports of carbon dioxide, chloride ions, heat and moisture is carried out. Several sets of experimental data were compared with the prediction by the numerical model developed in this paper, for its verification. Parametric study shows that the differences between the combined mechanism and the independent mechanisms are significant in many aspects.

Original languageEnglish
Pages (from-to)369-380
Number of pages12
JournalConstruction and Building Materials
Volume110
DOIs
Publication statusPublished - 2016 May 1

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Keywords

  • Carbonation of concrete
  • Chloride penetration
  • Combined action
  • Depassivation of reinforcement
  • Numerical modeling
  • Pore structure change

ASJC Scopus subject areas

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

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