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.

The two diagrams illustrate how

cement

and concrete are produced by adding some materials.

Overall

, there are five stages for producing

cement

that begins with passing the limestone and clay through a crusher and ending with packing

cement

into bags.

While

concrete production has a lesser extent stages. Limestone and clay are blended and passed through the crusher to produce the

powder

.

Then

produced

powder

is entered into a mixer. Next stage, the

powder

is heated by the heat

at the end

of the rotating heater cylinder and rotates. Before packing

cement

into bags for distribution to the markets, the

powder

is passed on to the grinder to produce soft

cement

. The right diagram shows that four materials are combined that the gravel has the biggest share among others with half of the share.

In addition

, water (10%),

cement

(15%), sand (a quarter of all share), and gravel are mixed in a concrete mixer.

Next,

the concrete mixer rotates to produce fine concrete for building purposes.