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.

The diagrams illustrate the various stages in the production of

cement

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and the way that

cement

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is used to make concrete.

Overall

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, there are five different steps in the

process

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of making

cement

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, from the mixing of two raw materials to the packaging of the finished products,

while

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the production of concrete is a simpler

process

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with only two main steps.

At the first stage

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in

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of

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the

cement

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-making

process

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, limestone and clay are crushed together into powder. After that, the powder is passed through a mixer and

then

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it is rotated and heated at a high temperature.

Next,

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the resulting mixture is ground into

cement

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, which is put into bags, ready to be used for different building purposes. Turning to the

process

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of producing concrete,

cement

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, water, sand and small stones called gravel, are added to a mixer and rotated to create concrete. Half of the resulting concrete is comprised of gravel, a quarter is sand,

cement

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accounts for 15%, and water constitutes the remaining 10%.