The Interlocking brick/tile is different from conventional block or bricks since they do not require mortar for its laying work. Because of this characteristics, the process of buidling walls and other structures are faster as the blocks are laid dry and lock into place. Almost any type of building can be constructed with interlocking block, which has projection and depression to key each other.
The composition of block depends on the availibility of materials and its use. The major components of interlocking block include Cement,Water and Fine and coarse aggregates. The size of aggregate affects the strength and loan bearing capacity of interlocking block.