Strength and durability of crushed fire bricks by partial replacement with fine aggregate


N.Ramkumar, M.Tech Dr.M.Manikandan, Assistant Professor
Department of civil Engineering, Dr.M.G.R Educational and Research Institute, India.


The main objective of this investigation is to examine the properties of CSFB concrete. Partial or full replacement of fine aggregates by the other compatible materials like fly ash, crushed rock dust, quarry dust, glass powder, and recycled concrete dust.“Spent Fire bricks” (SFB) for partial replacement of fine aggregate in concrete Fire bricks are the products manufactured from refractory grog, plastic, and non plastic clays of high purity. M25 grade of concrete is designed as per code. Conventional concrete is taken as control mix CSFB is to be added in various proportions and concrete specimens are casted. The different raw materials are properly homogenized and pressed in high capacity presses to get the desired shape and size. In most structural applications concrete is used primarily to resist compressive stress. In those cases where strength in tension or in shear is of primarily importance, the compressive strength is frequently used as a measure of these properties. Conventional concrete is taken as control mix Conventional concrete specimens are also to be casted for comparison. Various tests for hardened concrete such a Compressive strengths, Split tensile strength, Flexural strength, Modulus of elasticity, Bulk density are to be performed.