Effect of Replacing Natural Coarse Aggregate by Brick Aggregate on the Properties of Concrete

This paper presents an experimental investigation on the properties of concrete obtained replacing stone aggregate (partly or fully) by crushed clay-brick. The target compressive strength of stone aggregate concrete was 24 MPa. Remaining concretes were made by replacing the stone aggregate (partly or fully) by equal volume of brick aggregate while everything else was kept unchanged. The only variable considered in this study was the volumetric replacement (0%, 25%, 50%, 75%, and 100%) of stone aggregate by brick aggregate. The use of brick aggregate as a replacement of stone aggregate resulted reductions in unit weight, compressive strength, and modulus of elasticity of concrete by about 14.5%, 33%, and 28% respectively. Different relations for determination of compressive strength, splitting tensile strength, and modulus of elasticity of mix-aggregate concrete have been tentatively proposed.