The chart illustrates the procedure through which bricks are produced for construction work.
Overall, the process of producing bricks is comprised of ten relatively simple stages during which clay, sand, and water are used to produce baked bricks.
It commences when raw clay is dug using a digger which is then sifted through a metal grid into finer fragments that then fall onto a conveyor belt. In the next stage, water and sand are added, and the resulting mixture is either pushed through a frame and cut into simple bricks or is molded into specially-formed bricks. These are then placed in a special oven for two to three days in order to minimize their moisture content. The following three stages involve the use of a couple of kilns and a cooling chamber: bricks are first heated moderately in the first kiln to reach a temperature of between 200 and 980 degrees centigrade before being subjected to a higher temperature (870 to 1300 degrees) in the second one. Next, they are allowed to cool down for two to three days in the cooling chamber.
The process ends with the bricks being packed on palettes and delivered to end users on trucks.