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Cathodic protection on the UK’s Midland Links motorway viaducts

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journal contribution
posted on 22.08.2013 by Christian Christodoulou, Ali Sharifi, Sunil Das, Chris Goodier
The Midland Links motorway viaducts (MLMV) are a series of reinforced concrete structures comprising 21 km of elevated motorway around the outer circumference of Birmingham. Deterioration was identified early in their serviceable life due to chloride induced corrosion of the steel reinforcement. An electrochemical treatment utilising an impressed current cathodic protection (ICCP) was successfully trialled in 1987 with the first large-scale commercial application of the treatment on the network in 1991. Since then it has been the principal corrosion management strategy for the MLMV, with 740 structures currently protected by ICCP. The aim of this paper is to offer a brief historical review of the MLMV network, discuss the deterioration mechanisms and review the historical developments of ICCP together with its overall performance as a corrosion-management method. Recent developments in cathodic protection technology and secondary beneficial effects of the ICCP previously not recognised are also discussed on how they can potentially result in significant cost savings for maintenance agencies for this and other similarly protected structures.

History

School

  • Architecture, Building and Civil Engineering

Citation

CHRISTODOULOU, C. .... et al, 2013. Cathodic protection on the UK’s Midland Links motorway viaducts. Proceedings of the Institution of Civil Engineers: Bridge Engineering, 167 (1), pp. 43 –53.

Publisher

© ICE Publishing

Version

VoR (Version of Record)

Publication date

2013

Notes

This article was published in the journal, Proceedings of the ICE - Bridge Engineering: http://www.icevirtuallibrary.com/content/serial/bren Permission is granted by ICE Publishing to print one copy for personal use. Any other use of these PDF files is subject to reprint fees.

ISSN

1478-4637

Language

en

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