Impact of chloride redistribution on the service life of repaired concrete structural elements

A. Rahimi, T. Reschke, A. Westendarp, C. Gehlen

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

Abstract

This paper presents a simplified probabilistic approach to estimating the residual service life of concrete structural elements after repair. The repairs consist of replacing the concrete cover either partially or entirely with a cement-based repair material. In particular, the presence of a residual contamination in the remaining concrete layer and how the redistribution of the residual chlorides affects the determination of the service life are considered. Partial removal of the concrete cover may be appropriate for economic, execution-or construction-related reasons or also as a preventive measure etc. In such cases, it must be asked whether the remaining concrete layer has to be free from chlorides or to what extent it may still be contaminated with chlorides and how the residual contamination will affect the residual service life of the concrete structural element after repair (i.e. after the concrete cover has been partially removed and replaced with a repair material).

Original languageEnglish
Title of host publicationProceedings of the 4th International Conference on Concrete Repair, Rehabilitation and Retrofitting, ICCRRR 2015
EditorsH.-D. Beushausen, M.G. Alexander, P. Moyo, F. Dehn
PublisherCRC Press/Balkema
Pages200
Number of pages1
ISBN (Print)9781138028432
StatePublished - 2016
Event4th International Conference on Concrete Repair, Rehabilitation and Retrofitting, ICCRRR 2015 - Leipzig, Germany
Duration: 5 Oct 20157 Oct 2015

Publication series

NameProceedings of the 4th International Conference on Concrete Repair, Rehabilitation and Retrofitting, ICCRRR 2015

Conference

Conference4th International Conference on Concrete Repair, Rehabilitation and Retrofitting, ICCRRR 2015
Country/TerritoryGermany
CityLeipzig
Period5/10/157/10/15

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