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Lap splice lengths of deformed bars and deformed wires in tension*

Rebar Diameter (mm): 10 mm 12 mm 14 mm 16 mm 18 mm 20 mm 22 mm 25 mm 28 mm 32 mm 36 mm Concrete Strength (MPa): Concrete density: Normal weight concrete Light weight concrete Rebar Yield Stress (MPa): 280 MPa 420 MPa 520 MPa Rebar Coating: Epoxy-coated or zinc and epoxy dualcoated reinforcement with clear cover less than 3db or clear spacing less than 6db Epoxy-coated or zinc and epoxy dual-coated reinforcement for all other conditions Uncoated or zinc-coated (galvanized) reinforcement Spacing and Cover **: Satisfied Not satisfied Casting Position: More than 300 mm of fresh concrete placed below horizontal reinforcement Other Splice Type***: Class A Class B

Required Splice Length: 0 mm

* Splice length is calculated according to ACI318-19 

** Spacing and cover conditions are satisfied when Clear spacing of bars or wires being developed or lap spliced not less than db, clear cover at least db, and stirrups or ties throughout ℓd not less than the Code minimum (or) Clear spacing of bars or wires being developed or lap spliced at least 2db and clear cover at least db

*** Define the type of  the splice (Class A or Class B) from the table below: