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IS 16172:2014 Reinforcement Couplers for Mechanical Splices of Bars in Concrete - Specifications Class H  – Couplers which meet both Low cyclic fatigue test and high cyclic fatigue test requirements shall be classified and Designated as  Class H Couplers Class L  – All other Coupler which meets only low cycle fatigue requirements shall be designated as  Class L Couplers   Grade Fy (yield strength) Fu (Ultimate Strength) % Elongation of Bar (min) Fe 500 500 N/mm^2 545 N/ mm^2 12% Fe 500D 500 N/ mm^2 565 N/ mm^2 16% Fe 550 550 N/ mm^2 585 N/ mm^2 10% Fe 550 550 N/ mm^2 600 N/ mm^2 14.5% Fe 600 600 N/ mm^2 660 N/ mm^2 10%     IS 16172 :2014   ...

What are Reinforcement Coupler's Reinforcement Coupler's are used to join Reinforcement bar's that are used in Reinforced concrete structures, as a replacement for conventional lapping method of joining Reinforcement bar's. Mechanical Splice / Coupler's are  mechanical connections between two pieces of reinforcing steel that enable the bars to behave in a manner similar to continuous lengths of reinforcing steel bars. Mechanical splice join rebar end-to-end, provides many advantages of a continuous piece of rebar. Mechanical Splice  system is used in connecting Reinforcement Bar of respective/ different diameter using the respective Coupler's as per applications and standards/criteria. All Coupler Standards  IS 16172 : 2014                 Click here.. ACI 318 / ACI 133              Click here.. BS 8110                         ...