Cyclic Response of Beams Casted with Different Types of Concrete

Abstract

The structural response of the concrete beams to the effect of repeated load is investigated. The beams specimens manufactured from three various concrete types; conventional concrete, high strength-concrete and modified reactive powder-concrete. The exploration results point out that the ultimate capacity of high strength-concrete and modified reactive powder-concrete beams increase by about 127.3% and 154.5% if compared with normal strength-concrete specimen. Also, the first crack loads increase about 188.9% and 222.2% in the case of high strength-concrete and reactive powder-concrete beams respectively. The results are found the degradation in stiffness of normal strength-concrete beam is higher than the other two types of beams. In general, the structural behavior is significantly improved when casting the beams with high strength-concrete and reactive powder-concrete if compared with the normal strength-concrete beam.