Mechanical Properties Of Hybrid Fibre Reinforced Composite Concrete. (HyFRCC)

The concept of hybridization can offer more attractive mechanical engineering properties by adding two or more types of fibre into concrete. For this purpose, type hooked-end deformed steel fibre (SF) with 60mm length and polypropylene fibre (PPF) type fibrillated virgin polypropylene with length 19mm were chosen as a compliment with C30 grade concrete. The specimens incorporated steel and polypropylene fibres in the mix proportions of 100-0%, 75-25%, 50-50%, 25-75% and 0-100% with total volume fraction (Vf) 1.5%. The research methodology were focused on experimental program to determine mechanical properties 28 days of hardened concrete HyFRCC such as compressive strength, flexural strength,splitting tensile and flexural toughness