 This study assessed the feasibility of using geopolymers for repairing reinforced concrete beams. It found that geopolymers had higher compressive strength and shrinkage rates than epoxy resin mortars, and that carbon fiber sheets added further strengthening. Additionally, the carbon fiber reinforced specimens were able to withstand more than 200 cycles of repeated loading at 0.8 times their ultimate load, whereas the benchmark specimens could only withstand 7 cycles. This article was authored by Yu Fangli, Guo Weihao, Jin Yuan Siu, and others.