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 the information by selecting and reporting the main features, and make comparisons where relevant.

The diagram provides information about the stages involved in the

cement

-making process and how

cement

is used for building.

Overall

, in

cement

production, the process consists of six stages, beginning with limestone and ending with bags. Concrete production includes 5 stages, beginning with

cement

and ending with a concrete mixer. First of all, limestone and clay are crushed and

this

will be powder. Afterwards, the powder is mixed thoroughly before it is sent to a rotating heater. Having been heated, the resulting mixture is

then

ground and packed into bags of ready-to-use

cement

. As for producing concrete, the ingredients are

cement

, water, sand and gravel. It starts using

cement

less than a fifth,

while

water is one in ten.

Subsequently

, sand was used for a quarter and a half of the concrete consisting of small stones.

Finally

, all of the production concrete is mixed and ready to use.