Brick

They are made out of clay. They are used, mostly, for structure. Wedge-shaped bricks, rounded bricks, headers and stretchers. It means that you can place the bricks in many different ways. Stretchers: bricks placed with the long side out. Headers: bricks placed with the short side out.
 * 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//?
 * Describe 2 brick laying techniques
 * What are their advantages and disadvantages?
 * 1) Advantages: it's resistance to fire and weather and, the fact that, it is so easy to be produced, transported and layed.
 * 2) Desadvantages: in construction, it has to be used together with mortar because it can't be stabilized with weight because of it's dimensions.

__**Worksheet**__

a. Comparison and contrast Brick compares favorably with stone as a structural material. b. Description The commonest ancient Roman bricks were cut into triangles and laid with the base out and the apex set into a concrete filling that provided additional strength. c. Exemplification Special shapes can be produced by molding to meet particular structural or expressive requirements (for example, wedge-shaped bricks are sometimes employed in arch construction and bricks with rounded faces in columns). d. Cause/Effect The versatility of the medium was expanded in ancient Rome by improvements in the manufacture of both brick and mortar and by new techniques of laying and bonding. e. Chronology Brick which has been used since the 4th millennium BC, was the chief building material in the ancient Near East.[...] Employed throughout the Middle Ages, brick grained greater popularity from the 16th. Century on, particularly in northern Europe. It is widely used in the 20th Century, often for nonbearing walls in steel frame constructions.