Experimental Investigation on Fly Ash Based Micro Silica Concrete

This project work presents the strength characteristics of micro silica concrete. The micro silica concrete is an innovative and eco-friendly construction material and an alternative to Portland cement concrete. Use of micro silica concrete reduces the demand of Portland Cement which is responsible for high CO2 emission. Concrete is the most versatile used material which requires the large quantity of Portland cement. But the production of Ordinary Portland Cement (OPC) generates large amount of carbon-dioxide which is polluting the atmosphere. Hence it is inevitable to find an alternative material. Micro silica concrete is an innovative construction material which shall be produced by the chemical action of inorganic molecules .This depends upon thermally activated natural materials like fly ash, micro silica. Fly ash is a by-product of coal obtained from thermal power plants. This is rich in silica .Micro silica is the by- product of the silicon and ferrosilicon alloy production. The river is the most popular choice for the fine aggregate component of concrete. The present work involves to investigate the mechanical properties of concrete like compressive strength of cubes and spilt tensile strength of cylinders. Comparing with the test results of M40grade to reduce the usage of cement. On replacement of cement with fly ash and micro silica at 10%, 20% and 30% by weight of cement. Accelerated curing and conventional curing is adopted. Accelerated curing gives early and more strength compared to normal conventional curing.