Competitiveness amoung high school students should be encouraged. Do you agree or disagree?

The diagram illustrates

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cement-making process

Suggestion

the cement - making process

and its various stages and equipments needed, it

also

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shows the concrete production using

cement

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for constructing buildings. Overall, limestone and clay

undergoes

Suggestion

undergo

through various stages for producing a bag of

cement

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and these cements need to be mixed in a proportion with sand, gravel and water to produce concrete.

Initially

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, limestone and clay are crushed with a crusher to make fine powder. It is

further

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mixed in a mixer and a pipe takes it to a rotating heater, where it is heated with fire continuously.

Finally

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, the mixture is

grinded

the solid part of the earth's surface

ground

to produce

cement

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, which is

then

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packed in bags and ready to be used. Whereas, the

second

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diagram shows the production of concrete with

cement

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. When

cement

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15% mixed with 25% sand, 50% gravel or small stones and 10% water in a concrete mixer, which continually rotates to combine these ingredients and ultimately produces concrete