Combined Effect of Banana Fibre and Nano Silica on the Strength Properties of Concrete

Abstract

Abstract: This study investigates the combined effect of nano silica and banana fibres on mechanical properties of concrete of grade M-25. Nano silica has been used as a partial replacement of cement by weight. Nano silica has been kept constant at 3% as maximum strength was achieved at this percentage according to past studies. Banana fibre has been added by weight of cement in proportions of 0.5%, 1%, 2%, 3%, 4% and 5%. Length of banana fibres kept at 40mm. Compressive strength was determined by using different combinations of nano silica and banana fibre. Nano concrete provides good strength as compared to conventional concrete. The addition of banana fibres in nano concrete improved the strength properties of nano concrete as well as improvement in crack resistance of concrete. On the other hand, the addition of banana fibres resulted in reduction workability as well as permeability of concrete