the diagrams below show the stages and equipment used in the cement-making process, and how cement is used to produce concrete for building purpose. summarize the information, and make comparison. write at least 150 words.

The illustrations demonstrate how

cement

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and concrete are produced in order to use them for building purposes.

Overall

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,

cement

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and concrete generations are a 7 stage, man-made,

lineer

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linear

process

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starting with limestone and clay

are

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apply

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being added to produce

cement

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and ending with concrete production. First of all, limestone and clay are

being

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apply

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added into a crusher machine to generate

powder

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a powder

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of these raw

materials

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and

this

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power is mixed in a mixer and conducted to a rotating heater for

heating

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the heating

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process

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. After the heating

process

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, the heated product is converted to

cement

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with the help of a grinder and

then

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it is put into bags. Following that, four concrete

materials

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are put into a concrete mixer to mix together. Gravel, small stones, is the major component of the mixture with half of the total raw

materials

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and

this

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followed

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is followed

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by sand with 15% of the mixture. The remaining

materials

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,

cement

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and water, are added with 15% and a tenth of the total raw

materials

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respectively. After the mixing

process

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, concrete is produced as a final product.