The diagrams below show the stages and equipment used in thecement-making process, and how cement is used to produce concretefor building purposes. Summarize the information by selecting and reporting the main features and make comparisons where relevant.

Here, the diagrams illustrate

the

Correct article usage

apply

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information about the stages and tools used in the

cement

-making process

as well as

how

cement

is used to produce concrete for construction purposes.

Overall

, it is worth noticing that limestone and clay are the main ingredients for

cement

production

,

where

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whereas

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in concrete

production

,

cement

, water, sand, and gravel are the foremost resources. At a fleeting glance, in

cement

production

, the first phase is to crush and mix powder of limestone and sand with the aid of a crusher and mixer.

Then

the next step is

to put the powder in the rotary heater machine and apply some heat.

Moreover

, the major phase is to grind the powder with a grinder after giving it proper heat; now the

cement

is ready to be packed in bags and delivered. The second diagram demonstrates how

cement

is used to produce concrete for building purposes. In concrete

production

,

cement

, sand, and small stones are raw materials used in a proportion of 50:25:15:10. The next and final stage is to put all the sources into a concrete mixer machine, which mixes all the elements perfectly,

thus

making proper concrete to use in premises.