The diagrams below show the stages and equipment used in the cement-making process, and how cement is used to produce concrete for building purposes. Summarise it.

The processes illustrate the production of

cement

Use synonyms

and the following usage of it to produce concrete for

building

Fix the agreement mistake

buildings

show examples

. First of all, limestone and clay are mixed in a crusher where they are turned into a powder. Once the powder is made, it undergoes a mixing process in the mixer and

then

Linking Words

is

being

Unnecessary verb

apply

show examples

transported to a rotating heater where its temperature rises because of the heater on the bottom of the device. As soon as the product reaches the required temperature, it is transported to a grinder where the

cement

Use synonyms

is produced.

Finally

Linking Words

, the

cement

Use synonyms

is packed into bags and is ready to be used.

The concrete

Correct article usage

Concrete

show examples

production requires

sufficient

Add an article

a sufficient

show examples

amount of different substances to be mixed. In general, the process contains only 2 main steps. 50 per cent of gravel

,

Remove the comma

apply

show examples

and a quarter of sand are mixed in a concrete mixer with 15 per cent of

cement

Use synonyms

and 10 per cent of water. The mixer rotates and,

as a result

Linking Words

, produces concrete.