Brick


 * BRICK **



A **brick** is a block of ceramic material used in masonry construction, usually laid using mortar.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. Bricks dated 10000 years old were found in the Middle East. Examples of the civilizations who used mud brick are the ancient Egyptians and the Indus Valley Civilization, where it was used exclusively. In particular, it is evident from the ruins of Buhen, Mohenjo-daro and Harappa.

Bricks can be made from clay, ceramic, concrete, or shaped from quarried stone. bricks are used to build, they can serve as a structure, facades or decoration. Bricks come in all shapes and sizes, and are made from many different  types   of materials in various ways of manufacture. the most common type of brick are: mud bricks, rail kilns, dry pressed bricks and calcium silicate bricks. Are the different ways of working with bricks and mortar to make a wall or a part of a building.
 * Pre-reading **
 * What are they made of? **
 * What are they used for? **
 * How many types of brick are there? **
 * What is the meaning of **//** brick laying techniques **//** ? **

. Bricks are cheap They are strong in compresion Bricks are very heat resistant and thus provides good fire protection. Full brick houses are cooler in summer and brick houses are warmer in winter.
 * Brick laying techniques **
 * What are their advantages and disadvantages? **
 * Advantages **

Bricks are heavy and weak in tension.