The diagrams 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.

Cement

Making

Process

and Concrete

Production

for Building Purposes There are two steps in the

process

. One is

cement

making processes and two is concrete

production

. There are several steps for each processes.

First,

to make

cement

, limestone, clay and several equipment are needed. In the first step of the

process

, limestone and clay were crushed and turned into powder. The powder

then

was mixed in a mixing barrel and

then

will go through a rotating heater the next. After it was crushed and heated, the heated and crushed limestone and clay will go through a grinder to make them even more fine. The result is what we know as

cement

. The

cement

then

was put into bags to be transported into the building site to be use for concrete

production

. The next

process

is concrete

production

. There are

also

several steps in the concrete

production

.

First,

15 percent of concrete and 25% of sand was added into the concrete machine. Ten percent of water

then

added into the

mix

. The

mix

then

was rotated in the mixer.

While

the mixture of

cement

, sand and water was mixed in the mixer, 50 percent of gravel was added

last

in the mixture. The

last

step is to let the mixer

mix

the mixture together until it formed a fine concrete

mix

, which

then

will be used for building purposes.