Concrete is one of a brittle material which has low strain and strength capacity when load applied. In order to make the concrete strong in tension, they are supplemented with reinforcement. Both materials are structural in levels; fibers used in this project can improve the strength level, load carrying capacity and ductility of concrete by changing the percentage and aspect ratio in fibers. When a large portion of short fibers are mixed they control micro-cracks. This concept has been used for hybrid fiber reinforcement. Supplementary Cementations Material (SCM) like Silica Fume (SF), Rice Husk Ash (RHA) are generally in use as cement replacement materials which present a possible solution for sustainable development united with multiple benefits of savings in cost as well as energy. The different types of fibers ware used in this project study are Polypropylene fibers (PEF). The mixture of these fibers in suitable proportion give desired properties. This project is concerned with the strength, durability and flexure investigation of a new innovative concrete named as Fiber Reinforced Blended Concrete (FRBC) in M20, M25 grade of concrete. FRBC is a concrete made up of PEF in mono form and in hybrid form gained thorugh partial replacement of SF and RHA as binary and ternary blend. To enhance the material properties numerous test such as cube compressive strength, cylindrical split tensile strength, modulus of elastic and impact strength.

Keywords : SCM, SF, RHA, PEF, FRBC.