The effect of time dependent chloride diffusion coefficient on the chloride ingress in concrete

Yu Kuan Cheng, Isach W.Z. Karmiadji, Wei Hsing Huang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

A salt ponding test was conducted on mature concrete specimens dry-stored in laboratory condition. Analysis on the various properties of concretes with fly ash addition and their implication to chloride ingress were done. Experimental result indicates that fly ash addition increases the maximum surface chloride concentration of concrete while reducing the chloride diffusivity with time. These concrete properties proved to have an important effect on the prediction of chloride ingress using error function solution to Fick's second law. Comparison of calculated chloride profile curve using three different determination methods for the time-dependent diffusion reduction coefficient, m, indicates that the experimental curve fitted chloride profile would generally lie between calculated curve using total age and average age as the time basis.

Original languageEnglish
Title of host publication2011 International Conference on Electric Technology and Civil Engineering, ICETCE 2011 - Proceedings
Pages7098-7101
Number of pages4
DOIs
StatePublished - 2011
Event2011 International Conference on Electric Technology and Civil Engineering, ICETCE 2011 - Lushan, China
Duration: 22 Apr 201124 Apr 2011

Publication series

Name2011 International Conference on Electric Technology and Civil Engineering, ICETCE 2011 - Proceedings

Conference

Conference2011 International Conference on Electric Technology and Civil Engineering, ICETCE 2011
Country/TerritoryChina
CityLushan
Period22/04/1124/04/11

Keywords

  • chloride
  • diffusion
  • fly ash
  • ponding test

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