Abstract
Test results of 14 continuous concrete beams with corroded reinforcement of various severity are reported. Six corroded beams were tested to failure without repair. Carbon fabric-reinforced cementitious mortar (C-FRCM) repair solutions were applied to seven corroded beams. One virgin beam was used as a benchmark. Continuous beams with 20–40% sagging corrosion experienced 9–15% reductions in their load capacity. The beams with hogging corrosion experienced a maximum strength reduction of 9%. The C-FRCM repair solutions were successful in upgrading the response of the corroded beams. The corroded-repaired beams, except one, experienced a ductility index comparable to or higher than that of the virgin beam. The C-FRCM repair delayed yielding of the corroded steel and reduced the moments transfer after the occurrence of the first yielding. A simplified analytical model capable of predicting the load capacity of the tested beams was introduced and verified against the experimental results.
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