Iron+&+Steel

Iron  Is a material composed of iron and large amounts of carbon. Iron is very expensive, has the advantages of being molded in any way and is resistant to compression, but with the compression is weak and breaks without notice. Iron is used to build bridges, canyons and archs.

Steel  Steel is a material composed of iron and a touch of carbon, is one of strongest materials used in construction, is strong in tension and compression. Steel is as expensive as iron but is heavier and has the disadvantage that it oxidizes and loses its strength in extreme temperatures. Steel is used in cables for suspension bridges, trusses, beams and columns.



Corrugated Iron (CGI) in Australia Corrugated iron or Corrugated Galvanized Iron (CGI) is a widely used material in construction and is composed of galvanized iron sheets. CGI is a very cheap material, it is also easy to find and transport and most importantly a strong and durable material. For these reasons it has been a very material to used history in many countries, especially in Australia it was used in all types of construction such as farms, houses, churches and industrial buildings. CGI today for its characteristics, it remains a material used in construction.

**........................................................................................................................................................................................**

Steel & Iron Workers The iron and steel workers must be in good physical condition and have very strong due to the weight of these materials(iron and steel), also need to have balance and be very careful because we are working at high altitude and therefore they not have to be afraid of heights and dizziness.

**.......................................................................................................................................................................................**

“the old cast iron buildings died out. I'm not really sure whether the new skyscrapers killed them, or the new esthetics"  I think that the old cast-iron buildings did not become extinct have evolved so equal have evolved the methods of iron and steel construction. Today skyscrapers, its form and aesthetics are the result of that evolution through the properties offered by the steel and iron in the construction.



__**Concrete**__ is one of the most currently used materials in construction. The concrete has advantages and disadvantages, the advantage is that it works very well in __**compression**__ but the disadvantage is not resists __**tension**__. Actualmente buildings is made of various materials such as brick, steel and concrete, but because of the heavy the concrete usually found in certain parts of the building as __**beams**__ and __**columns**__ .