Compared with other building materials concrete more durable. For proper operation of concrete structures can serve indefinitely without reducing the carrying capacity, since the strength of concrete with time, unlike other materials, strength increases, and the steel in concrete is protected from corrosion. Fire resistance of reinforced concrete is characterized by the fact that the average intensity of the fires lasting up to several hours of reinforced concrete structures in which the fixture is installed with the necessary protective layer of concrete, are beginning to be damaged from the surface and decrease the load capacity occurs gradually.

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