Journal of Engineering Research
DOI
https://doi.org/10.70259/engJER.2025.921989
Abstract
Chloride-induced corrosion poses a significant threat to the durability and service life of reinforced concrete structures, necessitating effective rehabilitation strategies. This research provides a comprehensive review of electrochemical chloride extraction (ECE) for reinforced concrete structures. It explores the mechanisms behind ECE and highlights the factors that influence the treatment's efficiency. Key elements discussed include ECE setup parameters (current density, treatment duration, anode/electrolyte type, temperature) and concrete mix properties (binder type, water-to-binder ratio, cover thickness, reinforcement details). The review also explores ECE's effects on concrete microstructure, including hydration products, porosity, alkali-aggregate reaction, and potential for hydrogen embrittlement, as well as its impact on steel-concrete bond and compressive strength. Understanding these interdependencies is crucial for optimizing ECE applications. Our analysis concludes that current density is paramount for ECE efficiency, with higher densities generally increasing removal. However, careful selection is crucial to prevent adverse effects like hydrogen embrittlement and bond loss between steel and concrete. Furthermore, the Well-considered choice of anode and electrolyte is critical for project-specific success and maximizing ECE effectiveness.
Recommended Citation
Ghazy, Mariam; Abd Elaty, Metwally; and Farouk, Lara A.
(2025)
"A Critical Review of Electrochemical Chloride Extraction: Mechanisms, Effectiveness, and Impact on Concrete Properties,"
Journal of Engineering Research: Vol. 9:
Iss.
2, Article 30.
DOI: https://doi.org/10.70259/engJER.2025.921989
Available at:
https://digitalcommons.aaru.edu.jo/erjeng/vol9/iss2/30