Effect of crack width and chloride binding on chloride diffusivity in cracked RC beams

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1 Scopus citations

Abstract

This paper presents experimental and numerical results to study the effect of chloride binding and the crack width on the chloride transport in reinforced concrete beams subjected to flexure load. Reinforced concrete beams loaded in flexure to generate cracks were exposed to 8% of NaCl solution for three months. A crack influence function (Fw) was developed to correlate the crack width (w) and the ratio of chloride diffusion coefficient in the crack D cr to the chloride diffusion coefficient in sound concrete D e. Results of numerical simulation using COMSOL was seen to be in good agreement with the experimental results and thee mechanical behavior as well as the transport of the chloride in damaged RC beams was well predicted.

Original languageEnglish
Title of host publicationProceedings of the 8th International Conference on Fracture Mechanics of Concrete and Concrete Structures, FraMCoS 2013
Pages1877-1883
Number of pages7
StatePublished - 2013

Publication series

NameProceedings of the 8th International Conference on Fracture Mechanics of Concrete and Concrete Structures, FraMCoS 2013

Keywords

  • Chloride diffusion
  • Crack width
  • Finite element modeling
  • Scalar damage

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

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