海洋环境中混凝土结构易受氯盐侵蚀发生钢筋锈蚀，引发海工构件耐久性问题。双向电渗修复技术在去除混凝土中氯离子的同时可在钢筋表面形成阻锈剂钝化膜，是一种良好的结构延寿技术。采用1，6-己二胺为阻锈剂，在通电电流3 A/m²，通电时间9 d条件下，对氯盐侵蚀钢筋混凝土构件进行修复，研究了混凝土强度及保护层厚度对双向电渗修复效果的影响规律。结果表明：双向电渗有效提升了混凝土中钢筋的耐久性；混凝土中氯离子去除率、阻锈剂迁移量及钢筋耐蚀性随混凝土强度增加而降低。

Concrete structures in marine environment were susceptible to corrosion by chloride salts, causing corrosion of steel bars, and causing durability problems for offshore structures. The two-way electroosmosis repair technology could form a rust inhibitor passive film on the surface of steel bar while removing the chloride ions in the concrete, which was a good structure life extension technology. Using 1,6-hexamethylene diamine as rust inhibitor, under the condition of energizing current of 3 A/m² and energizing time of 9 d, the chloride salt corroded reinforced concrete members were repaired. The influence of concrete strength and protective layer thickness on the effect of the two-way electroosmosis repair was studied. The results showed that the two-way electroosmosis effectively improved the durability of the steel bars in the concrete; the chloride ion removal rate, the migration amount of rust inhibitors and the corrosion resistance of the steel bars in the concrete decreased with the increase of the concrete strength.