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Quality Assurance in ReinforcementSteel

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Detailed description of Quality assurance methods in reinforcement steel
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  for more presentations on Roads and Bridges, please visithttp://aproadbuildqa.blogspot.com Quality Assurance In Reinforcement steel D.V.Bhavanna Rao. M.Tech., F.I.E., Chief Engineer (Retired)Roads & Buildings DeptGovt of Andhra Pradeshemail: bhavannarao@yahoo.co.in  Thereinforcementshallbeofmildsteelandhighyieldstrengthdeformedbars,harddrawnsteelbars,deformedbars,coldtwistedsteelbars,harddrawnsteelwirefabricorstructuralsteelsectionsconformingtotherespectiveIndianStandardspecifications. Steel Reinforcement   Allthereinforcementshallbecleanandfreefromrust,mildscales,dust,paint,oil,grease,adheringearthoranyothermaterialorcoatingthatmayimpair thebondbetweentheconcreteandthereinforcement,orcausecorrosionofthereinforcementordisintegrationof concrete.  Grade designationBar type conforming to IS SpecificationCharacteristic strength f  y , MPaElastic modulus MPaFe 240IS:432 part1Mild steel240200Fe 415IS:1786-2008 Deformed415200Fe 500IS:1786-2008Deformed500200 Bridge Reinforcement requirements as per IRC:21-2000 Reinforcement shall consist of the following grades specified by their characteristic strength as the minimum value of 0.2% or yield stress

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