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.
Answer:
The two diagrams display the steps and apparatus required for the production of cement and use of cement to form concrete that is used in construction.
Overall, it is apparent that cement production is five stage process starting with crushing of two raw materials and ending with packaging of cement, while concrete production is a one step process.
There are mainly five steps involved in the production of cement. First, limestone and clay are crushed together between two rollers of a crusher to produce a powder. After that, this powder is thoroughly mixed in a mixer and then the mixture is heated by passing through a rotating heater. Heat is applied from the other end of the heater. Once this mixture is heated, it is ground in a grinder to produce fine cement which is then packaged in bags for delivery.
On the other hand, concrete making is a simple process and four ingredients are used in different proportions. 50% of gravel, one fourth of sand, 15% of cement and 10% of water are mixed together in a concrete mixer to produce concrete.
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