Reinforcement steel bar: Everything you need to know
Steel reinforcement bars, or rebars, are used to improve the tensile strength of concrete, which we all know is important because concrete is weak in tension but strong in compression. The steel reinforcement's tensile property will prevent and minimize concrete cracks under tension loads. Steel is only used as rebar because its elongation at high temperatures is nearly equal to that of concrete. Steel bars and mesh are made in steel mills around the world from iron ore and recycled steel. While iron ore is an excellent material, recycling steel is more energy efficient and has other advantages such as reduced pollution and natural resource exhaustion. Rebars must have some form of identification that can be used to identify the mill that manufactured the reinforcing steel bar. They are hot-rolled from various steel materials. When compared to galvanized and coated steels, stainless steels are easier to handle, manipulate, and weld, and they can withstand damage and abrasion duri...