Brick


 * ** What are they made of? **

Bricks may be made from clay, shale, soft slate, calcium silicate, concrete, or shaped from quarried stone. Clay is the most common material, with modern clay bricks formed in one of three processes - soft mud, dry press, or extruded.

brick is mostly used in the construction of buildings, but it was also used to pavement the streets after the invention of the concrete or the asphalt. The brick is also used in metallurgical and glass industries to make molds, because the brick have good thermal shock resistance. the most common type of brick are: mud bricks, rail kilns, dry pressed bricks and calcium silicate bricks
 * ** What are they used for? **
 * ** How many types of brick are there? **


 * ** What is the meaning of //brick laying techniques//? **

Bricklaying is a trade that specialises in building and repairing walls, floors, partitions, fireplaces, chimneys, as well as other structures with brick or concrete block. A bricklayer may use their skills for residential or large commercial development projects. Additionally, bricklayers may also refurbish brickwork on restoration projects. Some advantages of brick are: The use of brick can reduce the noise. Full brick houses are cooler in summer. Brick houses are warmer in winter. The brick is safe in the interior of buildings because is strong and can resist high temperatures. The brick needs a low maintance in buildings.
 * ** Describe 2 brick laying techniques **
 * ** What are their advantages and disadvantages? **