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

The diagram illustrates

cement-making process

Suggestion

the cement - making process

and its various stages and equipments needed, it

also

shows the concrete production using

cement

for constructing buildings. Overall, limestone and clay

undergoes

Suggestion

undergo

through various stages for producing a bag of

cement

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

Initially

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

further

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

Finally

, the mixture is

grinded

the solid part of the earth's surface

ground

to produce

cement

, which is

then

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

second

diagram shows the production of concrete with

cement

. When

cement

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