Iron+&+Steel

Strengths: Cheap, lightweight, moderately strong in compession and tension Weaknesses: Rots, swells and burns easily
 * //Wood//**

Strengths: Flexible, lightweight, long-lasting, strong in compression and tension Weaknesses: Expensive
 * //Plastic//**

Strengths: Lightweight, doesn’t rust, strong in compression and tension Weaknesses: Expensive
 * //Aluminum//**

Strengths: Cheap, strong in compression Weaknesses: Heavy, weak in tension
 * //Brick//**

Strengths: Cheap, fireproof and weatherproof, molds to any shape, strong in compression Weaknesses: Cracks with temperature changes, weak in tension
 * //Concrete//**

//**Reinforced** **Concrete**// Strengths: Low cost, fireproof and weatherproof, molds to any shape, strong in compression and tension Weaknesses: Can crack as it cools and hardens

Strengths: Molds to any shape, strong in compression Weaknesses: Weaker than steel in tension breaks without warning
 * //Cast Iron//**

Strengths: One of the strongest materials used in construction, strong in compression and tension Weaknesses: Rusts, loses strength in extremely high temperature
 * //Steel//**

It is a material that has covered walls and roofs throughout the continent, mostly view in poor zones
 * What corrugated iron is?**

It is cheap, strong, durable, easy to transport, supple and available everywhere
 * Characteristics**

In 1850, corrugate iron houses were transported from England. In a few years they can be found everywhere. Today it can be seen in farms in many forms. A lot of people in the world use corrugated iron because is a quick way to do cheap houses, also it is a quick solution to waterproof. In 1930 Australia becomes a country that manufactures corrugate iron. Modern artists and sculptors used corrugated iron as a symbol of Australia, for do things like clothing. Also it can be seen in a German plane.
 * Uses through history**

The iron workers are in every phases of the construction. For some of iron workers construction began in a fabricated job. They need cut and drill just like the specifications of a particularly job. They need use clear operators to know the positions of the others. Also, when they are in the factory, they need a good physical condition and a great strength and don’t be afraid of the heights. They need knowledge of mathematics too.
 * What it takes to be an iron worker**

Iron and steel are very important construction materials in architecture and urban planning because they are an evolution for traditional structural materials. Also it less expenditure of materials like stone, brick and wood. The iron and steel can be used for taller and stronger structures; also they have strong in compression and tension more than other materials. The iron and steel are very versatile, they are elastic, and workable, and are high resistance to fire and weather.
 * Reply to the iron & steel podcast**

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