The diagrams below show the stages and equipment used in the cement-making process, and how cement is used to produce concrete for building purposes. Summarise the information by selecting and reporting the main features and make comparisons where relevant.

The first diagram illustrates the materials and equipment necessary to produce

cement

and the second diagram shows how to produce concrete for building purposes from

cement

. In the first image, there are five stages to produce

cement

. The main inputs are limestone and clay, which both are crushed to powder in the first stage. The second step is mixing

this

powder and the third stage is a kind of cooking into a rotating heater.

Afterward

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Afterwards

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, in the fourth step, the output passes through a grinder, resulting in

cement

. In the final process, the

cement

is packed into bags. In the second image, it is possible to observe the process of transformation of

cement

into concrete.

Overall

, concrete is a mix of 15% of

cement

, 10% of water, 25% of sand, and

finally

half of gravel, which is a sort of small stones. All these materials are put together into a cylindrical mixer, called a concrete mixer. The final product known as concrete is used for building purposes, among other applications in the construction industry.