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Significance of the concentration of chloride in the repair of concrete highway structures using surface applied corrosion inhibitors
Date Issued
2005-11
Date Available
2010-08-06T15:36:18Z
Abstract
Advances in surface-applied corrosion inhibitors suggest that they have the potential to prevent or significantly retard corrosion of steel in reinforced concrete structures. It is thought that the effectiveness of the inhibitor depends on both the chloride concentration at the steel reinforcement and the inhibitor concentration. This paper presents the preliminary findings of a laboratory study into this assumption. Concrete specimens were ponded with chloride solutions to initiate corrosion. Inhibitor was applied to one face and the influence on corrosion activity was monitored by linear polarisation resistance measurement. The preliminary results of this continuing study showed that the surface-applied inhibitors could reduce the corrosion rate and this reduction depends on the chloride concentration. The practical implication is that there exists a chloride concentration range within which inhibitor use is most effective.
Sponsorship
European Research Council
Other Sponsorship
SAMARIS project
Type of Material
Conference Publication
Publisher
Taylor & Francis
Copyright (Published Version)
Routledge, Taylor & Francis Group, 2005
Subject – LCSH
Corrosion and anti-corrosives--Testing
Reinforced concrete--Corrosion
Language
English
Status of Item
Peer reviewed
Part of
M. G. Alexander ... et al. (eds.). Concrete Repair, Rehabilitation and Retrofitting Proceedings of the International Conference, ICCRRR-1, Cape Town, South Africa, 21-23 November, 2005
Conference Details
Presented at the first International Conference on Concrete Repair, Rehabilitation and Retrofitting (ICCRRR 2005), Cape Town, South Africa, 21-23 November, 2005
ISBN
0415396565
This item is made available under a Creative Commons License
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