The two diagrams present the processes of producing cement and concreteindividually, in which it is more complex to produce cement with four stepsinvolved, whereas only one procedure is required to manufacture concrete.

In terms of the way how to make cement, there are two raw materials required, say, limestone and clay, which are crushed into powder in a crusher at the first step. The crushed raw material

then

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is sent to the mixer. After being fully mixed, the mixture is to be heated in the rotating heater. The semi-products are ground with the grinder,

thus

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producing the cement, which will be packaged in bags as the final step in the manufacturing process. With regard to the procedure of making concrete, the process involves four raw materials with different proportions required. 15% of cement, 10% of water, 25%of sand and 50% of small stones(gravel) are added up in the concrete mixer,where all materials are mixed together.

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, the production ends up with manufacturing the concrete.