EXPERIMENTAL AND FEM INVESTIGATION OF SHEAR CAPACITY OF STEEL FIBER REINFORCED CONCRETE SUBJECTED TO IMPACT LOADING.

Abstract

Impact Tests were carried out on small concrete beams reinforced with steel fibers. The concrete mix had a constant 1% volume of fibers along with a constant aspect ratio throughout all the specimens. The impact load assembly was set up with a drop height allowing failure of specimens with the first drop weight impact. Thus, allowing the study to be limited to a single impact blow. The tensile strength of the steel fibers was varied to allow for a change in shear behaviour. Through these tests, it was found that steel fiber-reinforced concrete had a significantly greater shear capacity which increased with an increase in the tensile strength of the fibers.