Shop Rebar Coupler with Rod Threading -20mm

WHY USE REBAR COUPLERS?

• Traditional methods of lapped joints are not always suitable for connecting reinforcing bars. Lapped joints rely on the concrete for load transfer, which can be time-consuming in terms of design and installation. Additionally, the increased amount of rebar creates congestion within the concrete.
• Couplers mechanically join two bars together, forming an end-to-end connection. This creates a continuous load path that is independent of the condition and quality of the concrete. Mechanical splices are reliable under cyclic loading conditions and are advantageous in locations where inelastic yielding may occur.

• Spliced rebar performs like continuous reinforcement due to the mechanical joints, unlike lapping that relies completely on concrete.
• Steel wastage is significantly reduced. Couplers save lap length steel, allowing a 12m rebar to be divided into 3m or 4m bars as needed, preventing wastage of end pieces.
• The staggering of bars is not necessary.
• There is no reduction in the bar cross-sectional area.
• Couplers can replace dowel bars, saving formwork materials.
• Steel congestion is minimized due to the elimination of laps.
• Using couplers provides superior cyclic performance compared to lap joints.
• Installation is easy, requiring no torque wrench.

• Couplers are manufactured from EN material.
• High carbon content in reinforcing bar couplers results in greater strength and thickness, making them more sustainable and effective.
• These couplers increase the efficiency and quality of project execution.
• They simplify the design and construction of reinforced concrete, reducing the amount of reinforcement needed, which is an important national resource.
• No torque wrench is needed for assembly; hand tightening suffices.
• Our couplers are suitable for use in power plants, bridges, and all types of R.C.C. structures.

• I. ACI: 318:
  • Type 1 joint requires a minimum of 1.25Fy, e.g., for Fe500, the expected tensile strength is at least 625 N/mm² (Clause 12.14.3.4).
  • Type 2 must comply with the 1.25Fy requirement and meet the specified tensile strength, e.g., for Fe500 the ultimate stress expected is at least 700 N/mm².
• II. BS Part 1, Section 3:
• Specifies tensile testing and slip tests for joint acceptance.
• In precise types, permanent elongation after loading to 0.6fy must not exceed 0.1mm. For grade 460, tensile strength should exceed 497 N/mm².
• III. IS:
  • Type 1 for Fe500 is acceptable if it meets ultimate strength of 545 N/mm², which is much lesser than 1.25Fy (Clause 8.1, Table 3).
  • Type 2 must have a minimum condition of at least 625 N/mm².
• IV. IS:
  • 1. Manufacturer's code for production of couplers.
  • 2. Coupler to be designed for Fe550 grade.
  • 3. Only static tensile tests are recommended for acceptance on projects.
  • 4. A Fe500 rebar breaking at a stress of 580 N/mm² is acceptable per IS requirement of 545 N/mm².

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