Cathodic protection (CP) is being increasingly used on reinforced concrete structures to protect steel reinforcing bars from corrosion in aggressive conditions. Due to the complexity of environmental conditions, the design specifications in national and international standards are still open to discussion to achieve both sufficient and efficient protection for reinforced concrete structures in engineering practices. This paper reports an experimental research to investigate the influence of chloride content on concrete resistivity, rebar corrosion rate and the performance of CP operation using different current densities. It aims to understand the correlation between the chloride content and concrete resistivity together with the CP current requirement, and to investigate the precision of the CP design criteria in standards.

中文翻译：

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氯化物污染钢筋混凝土阴极保护试验研究

阴极保护 (CP) 越来越多地用于钢筋混凝土结构，以保护钢筋免受侵蚀条件下的腐蚀。由于环境条件的复杂性，国家和国际标准中的设计规范仍有待商榷，以期在工程实践中对钢筋混凝土结构实现充分有效的保护。本文报告了一项实验研究，以研究氯化物含量对混凝土电阻率、钢筋腐蚀速率和使用不同电流密度的 CP 操作性能的影响。它旨在了解氯化物含量与混凝土电阻率之间的相关性以及 CP 电流要求，并调查标准中 CP 设计标准的准确性。