Advantages and Characteristics
The DYWIDAG Extruded Coupler System produces a positive mechanical splice by hydraulically cold-extruding a coupler sleeve joining the butted ends of two reinforcing bars. The bar deformations are pressed into the softer coupler material using a specially developed extender.
- Highly effective slipfree splice capable of withstanding dynamic loads
- Fully bearing splice with lowest space requirements, even for highly loaded areas
- All bars can be spliced at a single cross section, eliminating the need to stagger joints
- Compact dimensions of the jack permit small bar spacing
- Splicing of multi-layer reinforcement possible without problems
- High production efficiency: up to 30 splices per hour
- Transition couplers are available to join rebars in different sizes
- Alternative couplers for special requirements available
- Short lengths for load transfer due to slip-free end anchorages
- Easy installation even of bent bars
Splicing
1. h = height of bar end above concrete
2. mark bar one half coupler length from end of bar
3. place coupler over bar and attach with set screw (tapered end will point upward)
4. insert matching bar
5. install extruder - extrude - remove extruder
6. inspect the engagement length of bars, also note the elongation of the coupler