INVESTIGATION ON FLEXURAL BEHAVIOUR OF CONCRETE SLABS REINFORCED WITH HYBRID REINFORCEMENTS

civil

Fiber reinforced polymer (FRP) composite has gained considerable worldwide and growing acceptance in the construction industry as internal reinforcement in concrete structures. The weakening of Reinforced Concrete (RC) structures has been a permanent problem mainly due to the corrosive condition of reinforcements surrounded in the concrete. Several suggestion like the use of water proofing admixtures in concrete, impermeable membranes, epoxy coated reinforcements are attempted to overcome the corrosion problem of steel reinforcement; all the efforts are not economically and commercially much feasible. In order to conquer the corrosion problem, several methods, such as epoxy coated bars, synthetic membranes, or cathode protection, have been developed as repair techniques. Non metallic reinforcement is used as the replacement to steel bars and to improve the life span of the concrete structures. The initial cost of this composite bars are high so wide distribution of this bars had not received but the maintenance cost of the structures with this type of reinforcements are comparatively lesser than conventionally reinforced structures.

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