FEM-models of cathodic protection systems for concrete structures
conference paper
A significant number of reinforced concrete structures shows deterioration due to the reinforcement corrosion and requires interventions to guarantee their residual service life. A wide range of maintenance options is available, among which cathodic protection (CP) has been found to be a successful and reliable method even in heavily chloride contaminated structures. Presently, CP systems are designed without full consideration of electrochemical effects, but purely based on experience, which usually results in conservative design. Using numerical models for current and polarisation distributions, CP systems can be designed for critical aspects beforehand and made more effective and economical. In this paper numerical simulations for design of CP systems, in particular for protection of local damage in bridges (e.g. at leaking joints) are presented. From the solution of the models, potential and current distributions in the domain and on the boundary representing the steel/concrete interface are obtained. © 2008 Taylor & Francis Group, London.
TNO Identifier
428158
ISSN
0415468574
ISBN
9780415468572
Source title
1st International Symposium on Life-Cycle Civil Engineering, IALCCE'08, 11 June 2008 through 14 June 2008, Varenna, Lake Como. Conference code: 83650
Pages
119-124
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