Products
Galvanized Strand with WAX and HDPE sheathing
(fib bulletin 30, PTI recommendations, BS EN 10244-2009)
- High tensile galvanized strand with strong fatigue resistance
- Coated with high impact resistant HDPE
- Void among wires and HDPE are filled with substantial filler
- Ease of replacement
Durable and efficient long span cable stayed bridges require high strength and high amplitude fatigue resistant stay cables.
Galvanized strand with Grease or WAX and HDPE sheath is widely applied to Cable Stayed Bridges, cable supported roofs and other building structures in the World.
The strands are galvanized, waxes and individually sheathed with a continuous and wear resistant HDPE sheathing, providing each strand with a triple protection system. SEI strands meets various requirements such as fib, PTI-Recommendations for stay cables, ASTM and BS as well as other national or International standards.
Typical properties of strand
| Nominal diameter [mm] | Tensile strength [MPa] | Cross Section [mm2] | Recommended tolerance on mass [%] |
Breaking load [kN] | Elongation at break [%] | Weight of Zinc coating [g/m2] | Relaxation 1000h at 0.7GUTS |
|---|---|---|---|---|---|---|---|
| 15.2 | 1860 | 140 | ±2 | ≥260 | ≥4.5 | 190-350 | ≤2.5 |
| 15.7 | 1770 | 150 | ±2 | ≥265 | ≥4.5 | 190-350 | ≤2.5 |
| 1860 | 150 | ±2 | ≥279 | ≥4.5 | 190-350 | ≤2.5 |
These are typical properties. It needs to be considered on each occasion in their specifications.
Typical properties of HDPE sheathing
| Outer diameter [mm] |
Sheathing thickness [mm] |
Friction resistance [N] |
Leak tightness / migration | Impact resistance |
|---|---|---|---|---|
| Max. 19.2 | Min. 1.5 | Min. 1000 | No increase of mass due to absorption of water | No perforation of the sheathing |
These are typical properties. It needs to be considered on each occasion in their specifications.