The diagram illustrates the process that is used to manufacture bricks for the building industry. Summarise the information by selecting and reporting the main features and make comparisons where relevant. .

The diagram illustrates the various stages involved in the production of

bricks

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for the construction industry.

Overall

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, the process consists of seven main steps, beginning with the extraction of clay and ending with the delivery of finished

bricks

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. It is a linear, largely mechanized process involving both shaping and thermal treatment.

Initially

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, clay is extracted from the ground using a large digger.

This

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raw material is

then

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placed on a metal grid, where it is broken into smaller pieces with the help of a roller. After that, sand and water are added to form a mixture, which is shaped into

bricks

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either by a mould or by a wire cutter. The formed

bricks

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are

then

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dried in a drying oven for 24 to 48 hours. Once dried, they pass through two kilns:

first,

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a moderate-temperature kiln (ranging from 200

°C

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to 980

°C

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), followed by a high-temperature kiln (870

°C

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to 1300

°C

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). After firing, the

bricks

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are cooled in a cooling chamber for 2 to 3 days.

Finally

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, the cooled

bricks

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are packaged and transported for delivery to construction sites.