Reinforcement steel is widely used in construction along with other types of metal products. It is used mainly to fabricate all types of reinforced-concrete installations (including reinforced concrete products, reinforced concrete structures, and monolithic structures), which is necessary to improve the strength characteristics of concrete. For the most part, builders use flexible reinforcement steel in the form of bars, welded grids, and frames. However, it is sometimes necessary to use more rigid reinforcement - rolled H-beams, channels, and angles. The quality of structural reinforcement steel is divided into several strength classes based on its physico mechanical properties and other characteristics - hot-rolled steel, thermomechanically hardened steel, and thermally hardened steel. The characteristics of the reinforcement which is used in large part determines the effectiveness of using reinforced-concrete structures in construction.
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