Materials+Review

** BRICK **
 * Brick is a construction material made of fired clay. This material is used for to construct walls. The advantages of bricks are: aesthetic quality for facades and arches, and it is fire resistance. The most used technique is the alternation of the position of each brick, as much horizontal as vertical.**

The iron is** **resistant to compression but their weakness is the tension because it's easy to bend and break.**
 * [[image:Iron1.jpg width="144" height="123" align="left"]]IRON & STEEL **
 * Iron and steel are construction materials heavy and costly.
 * The steel is elastic thus it manages tension and compression very well. Their disadvantage is that it rusts when it is exposed to water.**


 * [[image:Concrete_Cracked.jpg width="145" height="120" align="left"]]CONCRETE **
 * Concrete is a construction material compound for a mixture of cement, water, sand ans stones. It is a material of great compressive. Their making is a slow and costly process. Concrete is used for to reinforce the steel in the constructions.**