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 figures illustrate the levels and tools used for manufacturing

cement

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followed by producing concrete in a factory.

Overall

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, the

cement

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process consists of six stages from crushing to mixing and heating packaging. In concrete production, we see how some materials are mixed together.

According to

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the figure for

cement

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production, first of all, both limestone and clay will be crushed by a roller and will changed into powder.

Secondly

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,

this

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powder will be mixed in a pipe and will be flowed in a rotating heater to be dried by heating.

Then

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after, it will be poured on a conveyer and will be grinned to be

cement

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.

Finally

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, it will be packed in bags. It can be seen that in the concrete process, they mix 15%

cement

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, 10% water, 25% sand, and 50% small stones which is called gravel in a concrete mixer to combine all the items by rotation movement.