PC Strand (LRPC)
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Product Overview
Prestressed concrete steel strand (LRPC) composed of high-strength, low-relaxation steel wires for pre-tensioned and post-tensioned bridge and mega-structure projects.
Technical Specifications
| Strand Construction | 7-Wire Low Relaxation (LRPC) |
|---|---|
| Tensile Strength Level | 1860 MPa (Standard) / up to 2100 MPa |
| Standard Compliance | ASTM A416 / BS 5896 / ISO 6934 |
| Nominal Diameter | 9.53mm, 12.7mm (0.5"), 15.24mm (0.6") |
| Relaxation (1000h at 70% UTS) | ≤ 2.5% (Low Relaxation) |
| Yield Strength | ≥ 0.90 of Specified Minimum Breaking Strength |
| Application | Highway Flyovers, Bridges, Silos, Nuclear Plants |
Detailed Engineering Description
PC Strand, or prestressed concrete steel strand, is a twisted steel cable composed of 2, 3, 7 or 19 high strength steel wires and is stress-relieved (stabilized) for prestressed concrete or similar engineering purposes.
PC strand is classified according to the number of steel wires in a strand: 2 wire strand, 3 wire strand, 7 wire steel strand and 19 wire steel strand. It can be classified according to the surface morphology and can be divided into: smooth steel strand, scoring strand, mold pulling strand (compact), coated epoxy resin steel strand.
The main characteristic of the prestressed steel strand is high tensile strength and superior low-relaxation performance. Common tensile strength levels of 1860 MPa, as well as 1720, 1770, 1960, 2000, 2100 MPa. In most post-tensioned and pre-tensioned prestressed projects, smooth 7-wire steel strand is the most widely specified prestressed steel for bridges, flyovers, viaducts, and high-rise commercial structures.
PC strand is classified according to the number of steel wires in a strand: 2 wire strand, 3 wire strand, 7 wire steel strand and 19 wire steel strand. It can be classified according to the surface morphology and can be divided into: smooth steel strand, scoring strand, mold pulling strand (compact), coated epoxy resin steel strand.
The main characteristic of the prestressed steel strand is high tensile strength and superior low-relaxation performance. Common tensile strength levels of 1860 MPa, as well as 1720, 1770, 1960, 2000, 2100 MPa. In most post-tensioned and pre-tensioned prestressed projects, smooth 7-wire steel strand is the most widely specified prestressed steel for bridges, flyovers, viaducts, and high-rise commercial structures.
