Electrochemical chloride extraction (ECE) is an effective method to remove chloride ions in reinforced concrete. In addition, cracks in concrete have self-healing properties. The self-healing properties of concrete may affect the ECE process. Based on moving mesh technology, this paper simulates the ion migration process of ECE in crack-self-healing concrete. According to the simulation results, the distribution of ions in the reinforced concrete and the electric potential change law inside the concrete are analyzed during the ECE process. The effects of cracks or no cracks in the anode area of ECE, self-healing or no self-healing, and different self-healing rates on the efficiency of ECE were discussed. This research will have a positive impact on ECE's research.

中文翻译：

---

裂缝自愈混凝土中电化学氯化物提取的多阶段模拟

电化学氯化物萃取（ECE）是去除钢筋混凝土中氯离子的有效方法。此外，混凝土中的裂缝具有自愈特性。混凝土的自愈性能可能会影响 ECE 过程。本文基于移动网格技术，模拟了ECE在裂缝自愈混凝土中的离子迁移过程。根据仿真结果，分析了ECE过程中钢筋混凝土中的离子分布和混凝土内部的电势变化规律。讨论了ECE阳极区有裂纹或无裂纹、自愈或无自愈、不同自愈率对ECE效率的影响。这项研究将对ECE的研究产生积极影响。