Abstract
Near-surface mounted (NSM ) fiber-reinforced polymer reinforcement is one of the latest and effective strengthening techniques for reinforced concrete structures. Existing structural components require strengthening due to increase in service load, error in design, mechanical damage thereby extending the service period. The present experimental work is carried out on NSM technique incorporating NSM composites, namely glass fiber-reinforced polymer (GFRP) strips, as reinforcement. A total of 9 concrete beams were tested. Out of which 6 beams were strengthened with GFRP strips and remaining 3 beams are unstrengthen. A four-point bending test was applied on beams strengthened with different sizes of NSM reinforcement. Efficiencies of RC beams strengthened in flexure when different sizes of GFRP strips are compared. The failure characteristics, yield, and ultimate capacities, deflection, strain and cracking behaviour of the beams will be studied based on the experimental output. The test results indicate an increase in the ultimate load of 30% to 50% compared with that of control beam.
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