Cold Forged Rebar Coupler

By making use of quality packing material and with the assistance of our experts, we are able to meet diverse packaging requirements of the clients with ease. Thus, we make sure zero damage at client's end. Functioning smoothly from Coimbatore(India); we are capable enough of serving the clients in a shortest time possible.

Details  : In India, the structural consultant is free to define the code to which the couplers used for the project.

ACI: 318 - 2008:

• 1Type 1 joint required to achieve 1.25Fy as a minimum, e.g: For Fe5OO the tensile strengthexpected is at least 625 N/mm2 (Clause 12.14.3.4).

•  Type 2 required to comply with 1.25Fy requirement and also meet the specified tensile strength of the rebar. E.g: For Fe5OO the ultimate stress expected from the same is at least 700 N/mm2.

BS 8110 - Part 1, Section 3,1989 :

• 1. Specifies tensile testing and slip test for the joint for acceptance of the sample.

• 2. Testing the coupler of a precise type, the permanent elongation after loading to 0.6fy should not exceed O.1mm. E.g: For grade 460 the tensile strength should exceed 497 N/mm2.

IS 1786 - 2008 :

• 1. Type 1- For Fe5OO is considered acceptable for use anywhere in the structure ifit meetsultimate strength of 545 N/mm2 which is much lesser than the 1.25Fy. (Clause 8.1 -Tab1e 3).

• 2. Type 2 - Condition becomes at least 625 N/mm2 as well.

IS 16172 - 2014:

• 1. Manufacturers code for production of couplers.

• 2. Coupler to be designed for Fe55O grade.

• 3. Only tests recommended for acceptance on projects is static tensile tests.

• 4. Example, Fe5OO rebar breaking at a stress of 580 N/mm2 is acceptable as per IS 1786 requirement of 545 N/mm2.

Benefits of Couplers :

• Spliced rebar performs like continuous
• reinforcement due to mechanical joint, unlike
• lapping which has complete dependency on concrete. Steel wastage is reduced significantly. Using couplers saves lap length steel.

• A 12m rebar can be divide into 3m or 4m as bars as required which also prevents the wastage of end pieces of steel.

• Staggering of bars not required.

• Bar cross sectional area is not reduced.
• Couplers used as replacement to dowel bars which also saves formwork material.
• Steel congestion is reduced due to elimination of laps.
• Using couplers provides superior cyclic performance as compared to lap joint.
• Easy to install and no torque wrench required.

Contractors Preference :

• For the contractors, usage of couplers reduces labour cost for

• installation and handling of steel.
• The construction schedule is improved and there is saving on

• valuable crane time on the project.

• L ENBD material is used for manufacturing couplers.
• L Coupla reinforcing bar couplers having high carbon contents have high strength and in addition with greater thickness are more sustainable and effective.

• $· Coupla reinforcing bar coupler helps to increase the pace of execution and the quality of projects.

• L lt can simplify the design and construction of reinforced concrete and reduce the amount of reinforcement required, which is now a valuable national resource.

• I No torque wrench is required for assembling, Coupla reinforcing bar couplers.
• L Hand tightening of the bar or coupler is sufficient.
• Q Our couplers can be used in power plant, bridges and all types of R.C.C structures