AN EXPERIMENTAL INVESTIGATION TO DETERMINE THE CEMENT CONCRETE STRENGTH WITH SILICA FUME AND CENOSPHERE

Concrete is one of the important materials of the construction industries. Now a days due to increase in a population, the demand of infrastructure is increasing day by day. This leads to increase in production of cement. In the present time the world wide cement production is about 1.6 billion tons. This huge amount of production leads to consumption of natural resources and it is also harmful for environment. The main components of the gases emitted from cement industries are CO2, N2, O2, SO2, water vapors and micro components i.e. CO and NOx. Large quantity of waste by products are produced from the manufacturing industries such as mineral slag, fly ash, silica fumes etc. Cenosphere is a lightweight, hollow sphere made largely of silica and alumina and filled with air, metals, or gas. The Cenosphere was produced as a byproduct of coal combustion at thermal power plants. On the other hand silica fume industrial by product found to be an attractive cementations material which is by product of smelting process in the silicon and ferrosilicon industry. The aim of this study is to evaluate the performance of Silica Fume and Cenosphere an industrial by product as a admixture in concrete. The main parameter investigated in this study M-30 concrete mix with partial replacement by silica fume with varying 0, 10, 20, 30 and 40% by weight of cement and Cenosphere with 0, 2, 4 and 6% by weight. The paper presents a detailed experimental study on compressive strength, flexural strength and split tensile strength for 7 days, 14 days and 28 days respectively.