ADVANTAGES OF THE STEEL REINFORCEMENT AND IT'S USES

ADVANTAGES OF THE RCC CONSTRUCTION:-- The following are the advantages of the RCC construction .(1) Concrete can be easily moulded to any desired shape and size.(2) The materials for the RCC are easily available.(3) It is easy to make (4) It is durable (5) By Proper proportioning of mix , concrete can be made water tight.(6) It's monolithic character gives it more rigidity (7) It is fire resisting (8) It's maintenance cost is practically nil .STEEL AS REINFORCEMENT :-- Steel is used as Reinforcement to take up tensile stresses in RCC structures because of the following reasons.(1) It's tensile strength is high (2) It can develop good bond with concrete.(3) It's coefficient of expansion is nearly same as that for the concrete.(4) It is easily available. The steel bars used for reinforcing Concrete are generally of plain round mild steel with diameters between 5mm to 50 mm. It is only in very heavy structures that bars of diameter larger than 40 mm are used .There is a growing practice to use high yield point steel bars which are usually mild steel bars that have been cold drawn to increase their strength, but the difficulty of placing and bending these bars may outweigh the initial saving in the weight of steel required .Mesh fabric is used frequently as reinforcement in concrete, roads ,walls and floor slabs .It can also be used in the column footing. It is used in place of the bar Reinforcement only when there are definite advantages in cost and placing.All Reinforcement in RCC construction shall be clean and free from loose mill scales,dust loose rust and coats of paints , oil or other coatings which may destroy or reduce bond .