Title
Smart cathodic protection systems
Author
Polder, R.B.
Leggedoor, J.
Schuten, G.
Sajna, S.
Kranjc, A.
TNO Bouw en Ondergrond
Publication year
2010
Abstract
Cathodic protection delivers corrosion protection in concrete structures exposed to aggressive environments, e.g. in de-icing salt and marine climates. Working lives of a large number of CP systems are at least more than 13 years and probably more than 25 years, provided a minimum level of maintenance is applied. This involves routine checks of power units and testing depolarisation of reinforcement, usually under a maintenance contract and for a low annual fee. Regular design of CP is conservative, but lightweight anode materials and numerical modelling in the design phase may provide more cost effective systems, which can be termed "smart CP systems". For a CP trial lightweight anodes and numerical modelling were beneficial in terms of cost. Applying CP to the trial site, it was demonstrated that up to 10% lower life cycle costs over a period of 25 years were possible compared to conventional repair. © 2010 Taylor & Francis Group, London.
Subject
High Tech Systems & Materials
Architecture
Industrial Innovation
Aggressive environment
Anode material
Cathodic protection systems
Cost effective
Deicing salts
Design phase
Lifecycle costs
Maintenance contracts
Numerical modelling
Power units
Regular designs
Working life
Anodes
Cathodic protection
Life cycle
Maintenance
Numerical methods
Numerical models
Marine engineering
To reference this document use:
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TNO identifier
332077
ISBN
9780415877862
Source
5th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2010, 11 July 2010 through 15 July 2010, Philadelphia, PA, 2262-2267
Document type
conference paper