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Product Introduction
The 1x7 structure '12.7mm, 15.20mm, 15.70mm, 17.80mm' unbonded prestressed steel strand is a marvel of modern engineering, meticulously crafted to deliver unparalleled performance and durability. This high-strength steel strand is imbued with anti-corrosion grease and encased in a formidable sheath, making it the ideal choice for grand-scale water conservancy and hydropower initiatives. The product has also gained prominence in the realm of wind power projects, where the towering heights of wind power structures often reach or surpass 120m. As a leader in concrete tower solutions with cutting-edge external prestressing technology, this product stands out for its outstanding corrosion and fatigue resistance, significantly bolstering wind resilience and prolonging the lifespan of the structures it fortifies.
In alignment with the JG/T 161-2016 Unbonded Prestressed Steel Strand standard, we have pioneered a transformative design that simplifies the sheath tensile property testing process, enhancing practicality andelevating sheath performance. This avant-garde method ensures a uniform standard of sheath quality, thereby considerably augmenting safety and reliability across all projects.
Product Characteristics
Our unbonded steel strand for wind power concrete towers is distinguished by its ultra-smooth and dense sheath surface, allowing the steel strand's contour to be distinctly visible. This product is designed with precision to cater to specific technical specifications, offering customizable sheath and grease thickness tailored to your exact needs. We uphold an unwavering commitment to superior surface quality, ensuring it is devoid of air holes, mechanical imperfections, cracks, and visible wrinkles, fully complying with stringent industry standards.
Product Application
Wind Power, Water Conservancy
Hydropower Stations
South-North Water Transfer Project
River Channels 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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