Structural behavior of self-compacting and fiber reinforced concrete under shear loading

Abstract

Shear behavior of concrete elements made with traditional concrete (TC), self-compacting concrete (SCC) and fiber reinforced concrete (FRC) was analyzed. Three reinforced concrete beams were tested using three different kinds of concrete: TC, SCC and FRC, and two prestressed reinforced beams with SCC and FRC. Minimum traditional shear reinforcement was fixed so that a shear failure took place. Displacements, load and crack width were measured during the tests. Subsequently, the values obtained during the tests were analyzed by comparing the results of the different kinds of concrete. By means of video recording and subsequent image analysis, crack widths in beams were measured. Crack opening was controlled at the fixed control points. Shear experimental strength and behavior were compared. A safety margin was obtained for the analyzed cases.