Chloride-induced corrosion of reinforcement has endangered the safety of reinforced concrete (RC) structures. It is, therefore, necessary to strengthen the corroded RC members to ensure structural safety. This study aims to investigate the effectiveness of alkali-activated slag (AAS) ferrocement jackets in strengthening corroded RC columns. AAS ferrocement specimens with various layers of stainless steel wire mesh (SSWM) were subjected to direct tensile tests. Square RC columns suffered artificially accelerated corrosion and were subsequently strengthened by AAS ferrocement jackets. Axial compressive tests were conducted on the column specimens. Experimental results have shown that corroded specimens suffer severe losses in loading capacity up to 46% as compared with the control one. Volume fraction of transverse SSWM (ρ_v) plays primary role in loading capacity and ductility of ferrocement and its confinement on column specimens. Ferrocement with ρ_v of 0.266% can rehabilitate loading capacity of specimens with corrosion degrees of 8.9% and 18.3% by 37% and 46%, respectively. Corroded specimen strengthened by ferrocement with ρ_v of 0.532% achieves approximately two times the ductility than the one without strengthening. Ferrocement jackets provide better and uniform confinement to core concrete than new stirrups. Analytical models are proposed to predict tensile strength of AAS ferrocement and loading capacity of specimens strengthened by ferrocement jackets. The prediction is in good agreement with experimental results.

氯化物引起的钢筋腐蚀已经危及钢筋混凝土（RC）结构的安全性。因此，有必要加强锈蚀的钢筋混凝土构件以确保结构安全。这项研究的目的是调查碱活化矿渣（AAS）钢筋护套对加固锈蚀RC柱的有效性。带有各种不锈钢丝网（SSWM）的AAS钢筋试样均经过直接拉伸测试。方形RC柱受到人为加速腐蚀，随后通过AAS防锈套进行加固。在圆柱试样上进行了轴向压缩试验。实验结果表明，与对照组相比，腐蚀后的试样在承受高达46％的载荷时会遭受严重损失。横向SSWM的体积分数（ρ_v）在钢筋混凝土的承载能力和延展性及其在圆柱试样中的约束中起主要作用。与铁ρ_v为0.266％可以恢复腐蚀度分别为8.9％和18.3％的试样的承载能力，分别为37％和46％。受腐蚀的标本通过加筋强化ρ_v为0.532％时，其延展性约为未强化时的延展性的两倍。与新型马stir相比，铁皮夹克对核心混凝土的密封效果更好，更均匀。提出了分析模型来预测AAS钢筋的抗拉强度和由钢筋护套增强的试样的承载能力。该预测与实验结果非常吻合。