Bidirectional electromigration rehabilitation (BIEM) is a novel electrochemical rehabilitation method involving the injection of inhibitors into steel bar surface. The BIEM effect and hydrogen embrittlement (HE) risk depend on the electrochemical parameters (current density and duration) and operating condition (stress level and concrete cover thickness) of reinforced concrete structures. Experiments were performed in this study to investigate the relationships between the aforementioned factors. For a small current density group, a linear relationship was established between electric flux and chloride extraction. For a large current density group, the reasonable current density, stress level, and treatment time were obtained. Finally, the querying method of electrochemical parameters combined with treatment time and current density was proposed.

双向电迁移修复（BIEM）是一种新颖的电化学修复方法，涉及将抑制剂注入钢筋表面。BIEM效应和氢脆（HE）风险取决于钢筋混凝土结构的电化学参数（电流密度和持续时间）和操作条件（应力水平和混凝土覆盖层厚度）。在这项研究中进行了实验，以调查上述因素之间的关系。对于小电流密度组，在电通量和氯化物萃取之间建立了线性关系。对于较大的电流密度组，可以获得合理的电流密度，应力水平和处理时间。提出了结合处理时间和电流密度的电化学参数查询方法。