Concrete

Concrete is a great material which is a manufactured mixture between water, sand and cement. We can say that concrete is a great material because it has many advantages like their shape that can be turn into any form you want and need, it also has high compressive strength, the life of the concrete is very long and because it`s fire and water resistant it is very safe to use. Like all the other materials this one has too disadvantages like as it matures concrete shrinks, all concrete structures will crack to some exten t, due to shrinkage and tension, it is not very resistant to tension, that is why the reinforced concrete was invented and became very popular for their infinite use and for the construction area. The most important that we can say about concrete is that this construction material has the strength in compression of the concrete and the tension of the steel.
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