STUDIES ON THE IMPACT BEHAVIOUR OF FIBER REINFORCED GEOPOLYMER CONCRETE

Mechanical properties of geopolymer concrete with and without fibers were also determined. Comparisons were made in terms of compressive strength, split tensile strength, flexural strength and impact energy. The effect of impact loading on geopolymer concrete was investigated at three different energy levels. Impact response of geopolymer concrete was investigated under three-point bending configuration based on free-fall of an instrumented impact device for notched (25mm) and un-notched prisms. It was observed that reinforcing geopolymer concrete with 0.75% of crimped stainless steel improved the mechanical properties. Experimental investigation have shown that the orientation of fibers play a significant role in the determining the behavior of geopolymer concrete under impact loading.