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

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

Overall

,

cement

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

lineer

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linear

process

starting with limestone and clay

are

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apply

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being added to produce

cement

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

and

this

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

. After the heating

process

, the heated product is converted to

cement

with the help of a grinder and

then

it is put into bags. Following that, four concrete

materials

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

and

this

followed

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is followed

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by sand with 15% of the mixture. The remaining

materials

,

cement

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

materials

respectively. After the mixing

process

, concrete is produced as a final product.