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A new arrangement of galvanic anodes for the repair of reinforced concrete structures
journal contribution
posted on 2013-11-19, 12:57 authored by Christian Christodoulou, Chris GoodierChris Goodier, Simon Austin, Gareth K. Glass, John WebbDiscrete galvanic anodes are traditionally embedded in the patch repairs of steel reinforced concrete (RC) structures to offer corrosion prevention. This research investigated the performance of galvanic anodes installed in the parent concrete surrounding the patch repair, in order to explore the performance of such a new arrangement and identify its potential for wide-scale application.
This arrangement was tested on a RC multi-story car park and a RC bridge, with both suffering from chloride-induced corrosion of the reinforcement. The performance of the anodes was assessed using close-interval potential mapping for 215 days after installation. The results indicate that the anodes polarised the steel at a significant distance away from the patch repair interface, up to 600 mm in some cases. It illustrates that such an arrangement may be advantageous when repairing RC structures as the corrosion prevention can be targeted at the steel in the surrounding parent concrete, which is traditionally considered to be at higher risk due to incipient anode development.
History
School
- Architecture, Building and Civil Engineering
Research Unit
- Centre for Innovative and Collaborative Engineering (CICE)
Published in
Construction and Building MaterialsVolume
50Pages
300 - 307Citation
CHRISTODOULOU, C. ... et al, 2014. A new arrangement of galvanic anodes for the repair of reinforced concrete structures. Construction and Building Materials, 50, pp. 300-307.Publisher
© ElsevierVersion
- AM (Accepted Manuscript)
Acceptance date
2013-09-24Publication date
2013-10-17Notes
This is the author’s version of a work that was accepted for publication in Construction and Building Materials. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published at: http://dx.doi.org/10.1016/j.conbuildmat.2013.09.062ISSN
0950-0618Publisher version
Language
- en
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