To Study the Effect of Wood Ash and Rice Husk as a Brick Material

Wood ash bricks can be extensively used in all building constructional activities similar to that of burnt clay bricks. But they are weaker than normal clay bricks. Wood ash is the by-product of the combustion from the wood fire boilers at a typical paper mills and other wood burning facilities. Fly ash is the by-product of coal combustion collected by the mechanical or electrostatic precipitator (ESP) before the fuel gases reach the chimneys of thermal power station in very large volumes. Fly ash one of the numerous substances that causes air, water and soil pollution, disrupt ecological cycles and set of environmental hazards. The primary raw material used for bricks is the soil, which is often taken from prime agricultural land. The primary object of present study is to investigate the compressive strength and water absorption on with different percentages of fly ash, wood ash by keeping rice husk as constant. As the percentage of fly ash and wood ash increases there was increase in the compressive strength and percentage of water absorption decreases.