The Talk:

Selection of cathodic protection systems for reinforced concrete structures

Cathodic protection is a corrosion management strategy for deteriorating reinforced concrete structures or it can be used as preventative measure in situations where corrosion may be expected during the service life as a result of the environmental exposure conditions. The technology has advanced over time. There are now a number of different systems that can conveniently be considered in three categories, including impressed current cathodic protection (ICCP), hybrid cathodic protection (HCP), and galvanic cathodic protection (GCP).

The selection of the most suitable cathodic protection system is dependent on various factors that include technical applicability, environmental impact, sustainability, health, safety and wellbeing and whole-life costs. The system with the lowest whole-life costs may not be the most sustainable and environmentally friendly solution over the whole life when the weighting of non-technical aspects is increased during such an assessment. In recent years there has been a significant push in the UK from authorities to improve sustainability, reduce the environmental impact and risk to health, safety and wellbeing in addition to mainly assessing construction and operation costs and technical applicability.

The presentation will give an overview of the various systems and their advantages and disadvantages to inform the option selection process with a focus on sustainability and environmental impact.

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