| Customization: | Available |
|---|---|
| After-sales Service: | Pre-in-Post |
| Warranty: | Forever |
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Product Introduction
Introducing the remarkable 1x7 structure unbonded prestressed steel strand, available in diameters of 12.7mm, 15.20mm, 15.70mm, and 17.80mm. This exceptional prestressed steel bar is fortified with anti-corrosion grease and encased in a protective sheath. Primarily utilized in water conservancy and hydro-power projects, these strands are now gaining popularity in the burgeoning wind power sector. As the construction heights of wind power towers reach or exceed 120m, more projects are adopting concrete towers with external prestressing technology using our unbonded prestressed steel strand. Renowned for their outstanding corrosion resistance and fatigue endurance, these products significantly enhance wind resistance and extend the lifespan of structures.
In alignment with the JG/T 161-2016 Unbonded Prestressed Steel Strand standard, we have revolutionized the design to streamline the testing procedures for sheath tensile properties, thereby enhancing practicality and user-friendliness. The advancements in sheath performance effectively standardize its quality, ensuring superior project safety and reliability.
Product characteristics
The outer cable of the wind power concrete tower employs unbonded steel strands, with customizable sheath thickness and grease content tailored to user specifications. The sheath's surface is impeccably dense and smooth, visibly revealing the steel strand outline beneath. The surface quality adheres to high standards, ensuring no air holes, mechanical damage, cracks, or prominent wrinkles.
Product application
Wind power and water conservancy sectors
Hydro-power Station projects
Integral to the South-North Water Transfer project
Vital for river channel improvements and other national key water conservancy and hydropower projects
| UNBONDED PC STRAND | ||||||
| Size(mm) | Tensile Strength(MPa) | Section Area(mm2) | Gresase mass per meter(g/m) | Minimum thickness of coat(mm) | Friction factor(μ) | Effect modulus(K) |
| 12.7 | 1720,1860,1960 | 98.7 | 43 | ≥1.0 | 0.04~0.1 | 0.003~0.004 |
| 15.2 | 1570,1670,1770,1860,1960 | 140.0 | 50 | |||
| 15.24 | 1860 | 140.0 | 50 | |||
| 15.7 | 1860 | 150.0 | 53 | |||
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