The diagram below shows the stages and equipment used in the cement-making process, and how cement is used to produce concrete for building purposes. Summarize and information by selecting and reporting the main features and make comparisons where relevant.

The diagram illustrates the process and equipment for the production of cement, which is

then

Linking Words

used to make concrete which is used in the construction of buildings.

Firstly

Linking Words

, clumps of limestone and clay are crushed to make fine powder.

This

Linking Words

fine powder is

then

Linking Words

put in a mixer to make the content equal.

This

Linking Words

mixture is

then

Linking Words

put in a rotating heater where it is heated till it forms a liquid.

This

Linking Words

liquid is

then

Linking Words

cooled off and ground again to remove any clumps that may have formed, the product of

this

Linking Words

process is the cement which is

then

Linking Words

packed in bags which are transported to construction sites. The production of concrete requires various types of materials which are put together and

then

Linking Words

mixed together to make concrete. Concrete consists of 15% of cement, 10% of water, 25% of sand and 50% of small stones which are often called gravel. These materials are mixed together in a concrete mixture until they form a liquid called concrete, which is used in the construction of buildings.