Partial Replacement of Coarse Aggregate by Jhama Class Brick

Concrete is considered the world most used construction material. Typical concrete mixture are comprised of water, cement, sand, and an aggregate of rocks. This project focuses on the coarse aggregate in concrete. The other material will be used to replace the coarse aggregate of rock in typical concrete. This will include burn brick or jhama brick. This material was chosen because of their availability. The burn brick is available from brick manufacturing area. In brick making a large number of bricks rejected due to nonconformity is the distorted form of brick produced due to the uneven temperature control in kiln. These rejected brick can also be a potential source of coarse aggregate. In this project we replace the coarse aggregate by jhama class bricks bats up to 20% and 40% for M20 grade concrete. It is observed that workability decreased with replacement of coarse aggregate. One main things is that weight of concrete is decrease by use of jhama brick and cost of concrete is also decrease due to use of jhama brick. And in result see that there is no deference founded in strength of concrete due to use of jhama class brick. This material is chosen of their availability because a large number of bricks are rejected during the burning of brick due to unevenness of temperature. These rejected bricks can not be use in masonry work because their shape and size got change due to nonconformity.