Rebar
Reinforcement is one of the two main elements that make up the reinforced concrete element. Although concrete is a material that works very well against pressure, its tensile strength is very low. Steel bars are placed in this region to compensate for the stresses in the drawing zone. Round bars are generally used as reinforcement in reinforced concrete.
How does rebar work?
Structural elements need rebar to carry the tension in the reinforced concrete. Rebar helps control concrete cracking due to shrinkage cracks from curing or from temperature changes. Concrete alone is very strong when dried but does not have tension strength to stop cracking and erosion. When rebar is in place before the concrete is poured, once poured they both form a bond that strengthens the structure as a whole.
Rebar
Galvanized Rebar