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Rebar/RCC

Rebar (short for reinforcing bar), collectively known as reinforcing steel and reinforcement steel, is a steel bar or mesh of steel wires used as a tension device in reinforced concrete and reinforced masonry structures to strengthen and hold the concrete in tension. The full form of RCC is Reinforced Cement Concrete. Cement concrete is strong in compressive strength but weak in tensile strength. To increase the tensile strength, mild steel bars are used in cement concrete thereby reinforcing it. These steel bars are plain in surface or round sections (diameter from 6 to 50 mm.) These rods are manufactured in long lengths and can be cut quickly and bent easily without damage. Steel bars used in cement concrete provide good strength to the structure.

Usually steel bars are roughened or corrugated to further improve the bond or cohesion between the concrete and steel. Care must be taken that there should be no joints in steel bars used for RCC work. If full length steel bars are not available, proper overlap should be given in steel bars and overlap should be staggered. A care must be taken that the steel bars should not be disturbed during concreting. Steel rods should have proper bonding and planks or plates must be provided for walking of the people carrying concrete.