How to Attach Rebar to Rebar

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Rebar is often used in construction because of its low price and durability.
Rebar is often used in construction because of its low price and durability. (Image: Photos.com/Photos.com/Getty Images)

Reinforcing bar or rebar is used to add strength and rigidity to concrete and masonry in a whole host of construction-related applications. Because rebar has the same expansion coefficient as concrete, it is able to reinforce concrete without potentially damaging it from within by expanding too quickly. Further, the ribbed design of the rebar enables it to better attach to the concrete or masonry it is strengthening. Fortunately, there are a number of different ways to connect rebar. Each method has its own advantages and varies in terms of cost and complexity.

Things You'll Need

  • Quick wedge
  • Threaded coupler
  • Bar lock coupler

Utilize a quick wedge to connect pieces of rebar to one another. The wedge works by securing the two pieces of rebar together in a sleeve with a pin. Because the assembly of the wedge is simple, a large number of rebar pieces can be quickly connected even in poor weather conditions. Additionally, the design of the wedge allows for quick visual inspection to ensure the integrity of any connections made.

Take advantage of threaded couplers when connecting threaded sections of rebar. The couplers work by providing two “inputs” for the threaded ends of the rebar sections. In addition to providing an inexpensive and secure way to connect sections of rebar, the couplers can be removed and reused on other sections of rebar in the event of damage to either of the original rebar sections.

Use a bar lock coupler to attach sections of rebar that may be smoothed or otherwise deformed. The coupler is equipped with several bolts that secure the rebar sections in the coupler when tightened. Bar lock couplers are an excellent choice when connecting older sections of rebar as the bolts can be tightened to accommodate rebar that is severely misshapen or worn.

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