Made out of concrete mix of suitable proportion. This is made by using cement, sand and metal chips. A hydraulic or manual pressing and vibrating machine is used for this. Normally this is made in a yard.
Compressive Strength - 35kg/cm2 and above
Sizes are - 40 x 40 x 20 cm
40 x 20 x 15 cm
40 x 20 x 10 cm
23 % of cost saving is achieved when compared with country burnt bricks