Estudo do reforço à flexão de corpos de prova de concreto empregando compósitos de fibra de carbono

Abstract

The necessety to use technological materials to reinforce concrete structures that require less complexity in handling has become an important topic in civil engineering. The use of reinforcement with carbon fiber composites is one of the alternatives for increasing structural resistance, since it presents superior specific characteristics in its mechanical properties. The aim of this study is to investigate the mechanical behavior of simple concrete beams using carbon fiber fabrics as an external reinforcement technique. For the execution of the study, bending tests were carried out on prismatic bodies-of-proof, reinforced in accordance with the international standard ACI Committee 440.9R. The prisms were divided and analyzed into two different groups, for comparison purposes between the group that received carbon fiber reinforcement and the one dosen't. As a result, an increase in the maximum load supported until failure was observed in the flexion test with the reinforced CFRP samples, reaching a value of 228.18% in relation to the control samples.