Perfect CC Blocks have a pleasing colour like are uniform in shape and smooth in finish, also, they require no plastering for building work. The Blocks are of dense composition, uniformly shaped with/without a frog, free from visible cracks, warp-age, organic matter, pebbles and nodules of free lime. They are lighter in weight than ordinary clay Blocks and less porous too. The color of flyash Blocks can be altered with the addition of admixtures during the process of brick making. They come in various sizes, but generally are similar to the sizes of clay Blocks.