An experimental investigation on strength characteristics by partial replacement of rice husk ash and Robo sand in concrete

Abstract

The concrete is widely used in the construction industry. River sand is commonly used construction material. Natural weathering of rocks results in the formation of river sand, over millions of years. Robo Sand (R.S) which is eco-pleasant serves as a partially substitute material for the depleting river sand. The addition of Robo sand can reduce construction cost and also increase the strength of the concrete. Rice husk is by-product from crop growing waste and it is burnt to form Rice Husk Ash (R.H.A) which is used as partially substitute material for cement in concrete. In this study the concrete is prepared with RS as partially substitute material of fine aggregate in different proportions like 0%, 10%, 25%, 50%, 75%, and 100% and R.H.A as partially substitute material for cement in different proportions like 0%, 5%, 10%, 15%, and 20%. For normal and replaced concrete compression strength & split tensile strength is determined.