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 chart illustrates the process for producing concrete for building by using

cement

two

steps and several

Correct quantifier usage

pieces of equipment

show examples

equipment

Change to a plural noun

equipments

show examples

.

Overall

, there are

two

main stages for producing concrete, including producing

cement

as raw material and using it to create concrete.

Besides

, there are

two

materials

needed in producing

cement

and additional three

materials

for concrete except for

cement

.

The first step is

cement

production. First of all, the original

materials

,limestone and clay are crushed into powder by a crusher.

Second,

the powder is delivered into a mixer for a complete mix of

two

materials

and sent to the next section of the equipment, a heater.

Third,

the mixed item is heated in a rotating heater by a heating device at its bottom and

then

falls to a conveyor belt.

Finally

, through the belt and grounded by a grinder, the

cement

is already created and

then

packaged into bags preparing for the next step. The second step is concrete production.

Cement

, water, sand, and gravel composed of small stones are mixed and blended with the proportion of 15%,10%,25%, and 50% respectively into a clockwise concrete mixer. And eventually finishing the process of producing concrete.