The diagram provides a detailed information about the manufacturing process of bricks used for construction. The process consist of seven steps which begins in the extraction of the raw material and finishes in the delivery of the packaged product.
The process starts by extraction of the starting material, clay, by a mechanical digger from the soil. The extracted clay is then processed on a roller after filtered with metal grind to separate between the material and other unwanted residues from the ground. Next, the processed clay is added with a mixture of sand and water in order to create an intermediate mixture. This intermediate mixture undergoes a moulding process, or alternatively cutting process using a wire cutter, in order to produce construction bricks.
The bricks is consequently be processed further in the drying step using an oven for around 24 to 48 hours in order to eliminate the water content. After that, the dried bricks is hardened, it is treated further in a series of two ultra-heating treatments using a kiln. The first treatment uses moderate temperature of 200 C to 980 C and subsequently be heated again under second treatment which uses high temperature of 870 C to 1300 C, resulting in hard and sturdy bricks. The final step of manufacturing procedure involves a cooling treatment using a cooling chamber which will take around 48 to 72 hours. Finally, the finished product is packed to make it easy to move before being transported using trucks to get into the construction sites.