Development of chloride induced reinforcement corrosion in cracked concrete after application of a surface protection system

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4 Scopus citations

Abstract

Crack formation is inherent for Reinforced Concrete (RC) structures. The reduction of the concrete’s barrier property against chlorides often leads to a local depassivation of the reinforcement. A macro-cell corrosion element is formed in the cracked area.To protect direct driven concrete surfaces such as in multi-storey car parks, German Standards demand the application of surface coatings. In a research project, basic electrochemical parameters of reinforcement corrosion are measured on cracked RC beams to investigate the influence of an applied surface coating on the corrosion process. The paper presents results of the short-time chloride exposure and discusses the development of these parameters throughout the coating period. Furthermore first findings from the destructive investigation are presented. Chloride contamination led to active corrosion whereas after the coating macro-cell corrosion mostly decreased.

Original languageEnglish
Title of host publicationConcrete Solutions - Proceedings of Concrete Solutions, 6th International Conference on Concrete Repair, 2016
EditorsKosmas Sideris, Ioanna Papayianni, Michael G. Grantham
PublisherCRC Press/Balkema
Pages595-602
Number of pages8
ISBN (Print)9781138030084
StatePublished - 2016
Event6th International Conference on Concrete Repair, 2016 - Thessaloniki, Greece
Duration: 20 Jun 201623 Jun 2016

Publication series

NameConcrete Solutions - Proceedings of Concrete Solutions, 6th International Conference on Concrete Repair, 2016

Conference

Conference6th International Conference on Concrete Repair, 2016
Country/TerritoryGreece
CityThessaloniki
Period20/06/1623/06/16

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