Increasing Impact Endurance of Fiber Concrete

Abstract

The study covers the optimization of physical and mechanical properties and operational characteristics of fiber concrete that include complex influence of a binding agent on structure formation. The optimal composition of concrete ensuring the maximum static and dynamic strength was selected (impact endurance increases 6 times). It was revealed that the concrete with minor defects, high packing density, high fillercement stone adhesion ratio, increased ratio of static tensile strength against static compression strength Rt/Rcom and plasticity is characterized by the best resistance to dynamic loads. The penetration test on reinforced and fiber concrete plates showed that unreinforced concrete samples were completely destroyed while fiber concrete samples demonstrated their through penetration under the striker load.