Abstract

This paper explains the effectiveness and the use of two different methods of flexural strengthening of reinforced concrete (RC) beams using high performance concrete (HPC) layer. A 50 mm thick layer/jacket of HPC was directly applied to the beam surface in two forms. In one form, strengthening is done only at the tension face. In the other form, U-shape HPC jacketing was done. A total number of six RC beams are tested under flexure. The different test parameters studied are crack pattern, load-deflection curves, first crack load and ultimate load. Results indicated a significant increase in the flexural strength of RC beams in both methods of strengthening. Beams strengthened in the form of U-shape jacketing showed a higher gain in strength.

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