The first diagram shows how to make cement
and the second diagram depicts the process of making concrete.
Looking at the first diagram, limestone and
clay is used for making cement. These materials is crushed going through the
crusher so that they are been powder. Before the powder goes into the rotating
heater, they are mixed. In the rotating heater, all of the mixed powder is
heated. Finally, a grinder makes the heated and mixed powder become cement and
is packaged in bags.
Concrete needs some of cement, 15%, 25% of
sand, 10% of water, at last the most proportion of gravel, 50%, which is small
stones. All of these materials are put into a concrete mixer. Mixer rotates one
way and materials are mixed and being concrete.