Investigation on mechanical properties and microstructure of high performance polypropylene fiber reinforced lightweight aggregate concrete

The purpose of this study is to investigate the effect of high performance polypropylene (HPP) fiber on the mechanical properties of lightweight aggregate concrete (LWC). The mechanical properties include the compressive strength, splitting tensile strength, flexural strength, flexural toughness and the impact resistance. Two types of interfacial transition zone (ITZ) at aggregates/cement paste and fibers/cement paste were investigated by using...