Study on Performance of Silica Fume and Waste Bricks in Concrete

ABSTRACT Concrete is made by mixing cement, sand, aggregates and water in required proportion, where aggregates occupy the major volume. Addition of aggregates in concrete improves properties of concrete. With the natural resources depleting rapidly, limiting the use of natural resources and enhancing the use of waste materials is very important for sustainable development. Used waste bricks are a waste material which cannot be used in construction directly because of their irregular shape. The present study focuses on the effects of silica fume at various percentages as a partial cement replacement in concrete with waste bricks as coarse aggregates and cement. The mechanical properties of hardened concrete such as splitting tensile strength, flexural strength and compressive strength are studied and analyzed. Keywords: Construction, Material, Rice husk ash and Coconut shell ash