Reinforced Steel Protection System
Modern concrete and steel reinforcing systems require corrosion protection barriers, Civil Direct have developed numerous systems to address this issue in the way of sheaths and ducts.Each system typically requires a plastic sheath over the reinforcing components, as well as a protective polyethylene duct over the bundles.
In the past, the duct has been made from standard corrugated pipe. But recently the NZ Transport Agency issued a new specification with a minimum wall, pitch and amplitude for all external corrugated ducts, based of British Standard BS8081.This now meant for large jobs, standard corrugated pipe was no longer allowed. To combat this, Civil Direct invested in technology to manufacture a spiral pipe. This duct not only has the ability to resist moisture transfer, but supports the reinforcing bundle structure and acts as an anchoring system with filled with grout.
Systems are designed on an individual basis and an engineering solution can be developed for each application.
Proudly made in New Zealand by RD Manufacturing
GROUTING TUBES – Civil direct stocks two sizes of plastic sheaths or Grouting Tubes:
| Grouting Tube | ||||||||
|---|---|---|---|---|---|---|---|---|
| Nominal ID | Outside Diameter | Wall Thickness | Average Inside Diameter | Stocked Coil Size | ||||
| Min. | Max. | Min. | Max. | |||||
| mm | mm | mm | mm | mm | m | |||
| 14 | 15.9 | 16.5 | 1.1 | 1.2 | 13.9 | 200m | ||
| 16 | 19.0 | 19.6 | 1.7 | 1.8 | 15.8 | 200m | ||
SPIRAL PIPE – Dimensions
| Spiral Tube | ||||||
|---|---|---|---|---|---|---|
| Nominal ID | Average Internal Diameter | Outside Diameter | Min. Wall Thickness | Pitch | kg/m | |
| mm | mm | mm | mm | kg | ||
| 40 | 36 | 49.0 | 1.2 | 14.0 | 0.17 | |
| 50 | 47 | 63.3 | 1.4 | 16.0 | 0.26 | |
| 65 | 58 | 78.0 | 1.7 | 20.0 | 0.38 | |
| 80 | 76 | 97.0 | 2.0 | 24.0 | 0.58 | |
| 100 | 102 | 127.0 | 2.5 | 30.0 | 0.94 | |
