Corrosion of Steel in Concrete – Thermodynamical Aspects

Andre Küter, Per Møller, Mette Rica Geiker

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

Abstract

The present understanding of selected corrosion phenomena in reinforced concrete is reviewed. Special emphasis is given to chloride induced corrosion. There is a general acceptance of the basic corrosion mechanism for steel in concrete. However different anodic reactions governing the subsequent formation and composition of corrosion products have been proposed. Suggested reactions, except half-cell reactions, are verified or rejected based on their Gibbs free energy, while the electrode potential is calculated for half-cell reactions. Corrosion products postulated to form are related to observations. A thermodynamically possible reaction mechanism for the formation of green rust in the presence of chlorides is proposed. Initial verification of the suggested mechanism is given based on experimental data from the literature and own observations.
Original languageEnglish
Title of host publication13. Scandinavian Corrosion Congress : Abstracts
Number of pages46
Place of PublicationReykjavic, Iceland
PublisherThe Icelandic Building Research Insitute
Publication date2004
Edition1.
Publication statusPublished - 2004
Event13th Scandinavian Corrosion Congress: Nordisk Korrosionsmöte - Reykjavic, Iceland
Duration: 1 Jan 2004 → …
Conference number: 13

Conference

Conference13th Scandinavian Corrosion Congress
Number13
CountryIceland
CityReykjavic
Period01/01/2004 → …

Cite this

Küter, A., Møller, P., & Geiker, M. R. (2004). Corrosion of Steel in Concrete – Thermodynamical Aspects. In 13. Scandinavian Corrosion Congress: Abstracts (1. ed.). The Icelandic Building Research Insitute. http://www.ipl.dtu.dk/publikation/8526/dk/