Norcure Electrochemical Chloride Extraction (ECE) is a treatment which a) extracts chloride ions from contaminated concrete and b) reinstates the passivity of steel reinforcement. Chloride extraction is carried out by temporarily applying an electric field between the reinforcement in the concrete and an externally mounted anode mesh. During the process chloride ions are transported out of the concrete. At the same time, electrolysis at the reinforcement surface produces a high pH environment. This process returns the steel reinforcement to a passive condition.
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- Decks
- Beams
- Columns
- Pier caps
- Other chloride contaminated
areas
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Features and Benefits
- Mitigates active corrosion – addresses the cause of corrosion by reducing chloride content and repassivating the reinforcing steel.
- Long term protection – corrosion will not re-initiate unless recontaminated with sufficient chlorides.
- Global protection – treats the entire structure, not just isolated patches.
- Low maintenance – no permanent system to maintain or monitor.
- Environmentally friendly – vastly reduced concrete break-out reduces noise, dust and environmental pollution.
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