| Customization: | Available |
|---|---|
| After-sales Service: | Pre-in-Post |
| Warranty: | Forever |
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Product Introduction
The 1x7 structure "12.7mm, 15.20mm,15.70mm,17.80mm" unbonded prestressed steel strand is a revolutionary prestressed steel bar enhanced with anti-corrosion grease and a protective sheath. These products are integral to water conservancy and hydro-power projects, which have been expanding to meet the demands of the rising wind power sector. As wind power towers reach soaring heights of up to and beyond 120m, the use of unbonded prestressed steel strands in concrete towers with external prestressing technology is becoming increasingly prevalent. Our products boast superior corrosion resistance and remarkable fatigue resistance, significantly enhancing wind resistance and extending the service life of structures.
Based on the JG/T 161-2016 Unbonded Prestressed Steel Strand standard, we've pioneered an innovative design that streamlines the testing methods for sheath tensile properties, boosting practicality and ease of use, while facilitating the performance of the sheath. This innovation not only standardizes the quality of the sheath but also elevates the safety standards of quality in various projects.
Product Characteristics
Designed for the outer cables of wind power concrete towers, our unbonded steel strands offer customizable sheath thickness and grease composition, tailored to the precise technical requirements of our clients. The sheath surface is meticulously crafted to be dense and smooth, while the contours of the steel strand are distinctly visible, ensuring a flawless surface quality that adheres to rigorous standards of no air holes, no mechanical damage, no cracks, and no noticeable wrinkles.
Product Application
Wind power, water conservancy
Hydro-power Stations
South-North Water Transfer Project
River Channels and other pivotal national 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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