Concrete


 * CONCRETE**

Concrete is a very strong and with a low cost construction material composed of cement, sand, water and other aggregates. It is used to fill streets, to construct rustic tables for external areas and other things, to construct bridges and domes. Cement with water gives the property of firmness to the concret. Concrete is used more than any other man-made material in the world. This material were used for the first time in 1840, so it is a very recient construction material.

It is fireproof and weatherproof, it can molds to any shape and it is strong in compression.

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