Do You Know PC Strand Unbonded?

Unbonded PC strand, also known as unbonded PC steel strand, is designed with enhanced corrosion resistance. Its surface is coated with a layer of special anti-corrosion grease and then encased in polyethylene plastic—typically low-pressure, high-density polyethylene (HDPE). This dual protection isolates the steel strand from the concrete, allowing it to move freely within the protective layer and making construction more convenient.

Thanks to its low friction and flexibility, unbonded PC strand can be easily bent into various curved shapes. This makes it particularly suitable for complex structural applications such as cast-in-place concrete floors and heavy-load precast beams.

Key Features of PC Strand

• High tensile strength with low relaxation – ensures superior load-bearing capacity and long-term performance.

• Space-efficient – requires no additional room for future expansion.

• Excellent corrosion resistance – designed to withstand harsh environments and extend service life.

• User-friendly – simple to handle and apply in construction projects.

• Material-saving – helps reduce overall material usage, making projects more economical.

• Flexible design – easy to bend and adapt to complex structural shapes.

• HDPE coating – provides extra protection and durability.

Applications of PC Strand

PC strand is widely used across many sectors of construction and infrastructure due to its strength, durability, and versatility. Typical applications include:

• Prestressed concrete structures – concrete silos, retaining walls, and dams.

• Building construction – factories, high-rise buildings, foundation pillars, hollow-core floor slabs, and building slabs.

• Bridges and roadworks – railway bridges, highway bridges, urban overpasses, and other prestressed concrete bridges.

• Protective structures – safety shells of nuclear power plants and other high-security facilities.

• Water conservancy and hydropower projects – water towers, sewage treatment plants, hydroelectric dams, and large-scale water pipes.

• Other specialized uses – TV towers, poles, crane beams, soil anchors, rock anchors, and more.

We are PC strand unbonded suppliers. Please feel free to contact us if you are interested in our products.