Appearance: The blocks have the appearance which is extremely charming like concrete; Due to perfection and finish on their surface they require no putting for building work. These are reduced, consistently formed and liberated from noticeable breaks. They are lighter in weight than conventional mud blocks and are less permeable. The shade of these blocks can be adjusted by the expansion of admixtures during the interaction of block making. The size of these blocks can shift however they are for the most part accessible in similar sizes of the ordinary mud blocks.