Effect of Crushed Clay Bricks as Partial Replacement of Fine Aggregate in Concrete of M35 and M40 Grade

Concrete is the most material being used in infrastructure development throughout the world. Sand is a prime material used for preparation of mortar and concrete and which plays a major role in mix design. Natural or River sand are weathered and worn-out particles of rock and are of various grades or sizes depending upon the amount of wearing. Now-a-Days good sand is not readily available, it is transported from a long distance. Those resources are also exhausting very rapidly. The nonavailability or shortage of river sand, such that excess river erosion and harm to environment is prevented. Many researchers are finding different materials to replace sand. This study aimed to investigate the suitability of using of using crushed clay brick in concrete. Crushed brick originated from demolished masonry was crushed in the laboratory and added partial sand replacement. Eight replacement levels 10%,15%,20%,25%,30%, and 32%, were compared with the control for M35, and M40 design mix concrete grades. The tests on concrete showed that mechanical properties (compressive strength, and split tensile strength) of concrete containing crushed clay brick were well comparable to those of the conventional concrete. The reuse of construction and demolition wastes, especially crushed clay bricks (CCB), represents a major contribution to the environment. Due to the nature of clay bricks, it can be considered as source of fine and coarse aggregates to produce structural concrete. This research has been conducted with the objectives of highlighting the effect of crushed clay bricks as partial replacement of fine aggregate in concrete