Electrochemical Chloride Extraction (ECE) is a non-destructive rehabilitation technique which can extend the service life of chloride contaminated reinforced concrete bridge elements. After extensive testing and evaluation, ECE is gaining acceptance as a cost effective alternative to more destructive concrete removal and replacement methods. This paper describes the principle behind ECE and presents descriptions and summary results of projects completed in North America. Electrochemical Chloride Extraction reduces the chloride content within the concrete, eliminates harmful corrosion potentials, and reduces corrosion currents.
Keywords: Electrochemical Chloride Extraction, Chloride Removal, Reinforcing Steel Corrosion, Corrosion Potentials. Concrete Restoration.