The diagrams below show the stages and equipment used in the cementmaking process, and how cement is used to produce concrete for building purposes.

The given diagram illustrates different stages that must be taken to produce

cement

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and concrete for construction purposes.

Overall

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,

although

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there are six different stages in the process of making

cement

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, there are three main steps in the process of producing concrete.

Firstly

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, in the first stage of the production of

cement

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, limestone and clay are powdered by a crusher. In the next stage,

this

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powder goes through a mixer and is heated by a rotating heater. In the third stage,

this

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heated

mixture

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is put in the grinder to produce

cement

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.

Finally

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, they are packed to be used by customers.

Secondly

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, in the concrete production process, 10 and 15 per cent water and

cement

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respectively

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, respectively

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, are poured into the big

mixture

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.

Then

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25% sand and 50% gravel are added to the

mixture

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.

Finally

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, the

mixture

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rotates to produce concrete.