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Title: | Performance evaluation of galvanic anodes through laboratory testing and on-site monitoring |
Authors: | Dodds, Wayne J. Christodoulou, Christian Goodier, Chris I. Austin, Simon A. |
Keywords: | Corrosion Galvanic anodes Potential mapping |
Issue Date: | 2014 |
Publisher: | RILEM Publications S.A.R.L. |
Citation: | DODDS, W. ... et al, 2014. Performance evaluation of galvanic anodes through laboratory testing and on-site monitoring. IN: Bjegovic, D., Beushausen, H., Serdar, M. (eds). Proceedings of the RILEM International Workshop on Performance-Based Specification and Control of Concrete Durability, Zagreb, Croatia, 11th - 13th June 2014, pp.175-182. |
Abstract: | This study examines the effectiveness of galvanic anodes installed both within the patch
repair and surrounding parent concrete through laboratory testing and on-site monitoring.
Sodium chloride was added during casting of the laboratory concrete specimens to induce
corrosion. The anodes were tested using surface potential mapping at 7 days, 8 months and
also 26 months after repair. Site monitoring of galvanic anodes was performed over a period
of 215 days.
The results showed that galvanic anodes installed in the parent concrete had a greater
polarisation effect on the surrounding steel, which is generally considered to be at highest
risk, as compared to galvanic anodes installed within the patch repair itself. This was in-line
with data obtained from similar installations in full-scale reinforced concrete structures. It
was also noted that, with increasing chloride content, the polarisation extent was reduced. |
Description: | This is a conference paper. |
Version: | Publisher version |
URI: | https://dspace.lboro.ac.uk/2134/15296 |
Publisher Link: | http://www.grad.unizg.hr/rilem_psc |
ISBN: | 9782351581353 9782351581360 |
Appears in Collections: | Conference Papers and Presentations (Architecture, Building and Civil Engineering)
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