Corrugated Duct
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Smooth Flat Oval Duct
Model: 70*20mm, 90*20mm
Galvanized steel belt thickness: 0.4mm
Common Length: 5.8m/pc
Application: The smooth flat oval duct produced is mainly used as the bonded post-tensioning concrete structure, such as the large span railway, highway, bridge, etc.
This smooth flat oval duct is made by the galvanized steel belt. It is ideal for bonded post-tensioning concrete slabs. The duct encases strands from the live-end to the dead-end to seal the strand from concrete until grouting. Being strong and easy to cut, it is also used with bar chairs to achieve the desired tendon profile. The duct is mainly used as the bonded post-tensioning concrete structure, such as the large span railway, highway, bridge, etc.
Specifications of Smooth Flat Oval Duct
| Model | Maximum Strand Capacity | Length/pc | A | B | |
| 12.7mm strand | 15.2 mm strand | (m) | (mm) | (mm) | |
| 70X20mm | 5 | 4 | Available upon request | 70 | 20 |
| 90X20mm | 6 | 5 | 90 | 20 | |
