2021 High quality Low Relaxation Seven-Wire Strand For Prestressed Concrete - Mine Supporting Big Diameter PC Bar – Silvery Dragon
2021 High quality Low Relaxation Seven-Wire Strand For Prestressed Concrete - Mine Supporting Big Diameter PC Bar – Silvery Dragon Detail:
PC bar for mine anchor cable (mine supporting big diameter PC bar)
This product is heat-treated spiral rib bar with resin anchoring structure for mine anchor cable. Its specifications are φ16.0mm, φ18.0mm, φ20mm, and the tensile strength grade are 1080Mpa, 1270Mpa, and 1420Mpa. The product has the characteristics of high strength, high toughness, low relaxation, total elongation under maximum force Agt≥3.5% and impact absorption energy Akv/J≥32. Its shape is spiral rib. It is a new type of support material that combines the advantages of ordinary resin anchor rod and high-strength PC strand materials. During application, it adopts tensioning method to apply preload and only the tail of the bar is stretched to avoid the torsion of traditional anchor rods caused by applying preload through pre-tightening torque and breakage in shear. The tensioning method can also greatly increase the pre-tightening force and improve support effect. It is a new type of material for mine support.
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Key parameters & reference standards
| Appearance | Nominal Dia.(mm) | Tensile Strength(MPa) | Relaxation(1000h) | Standards |
| Spiral Groove | 6.1,7.1,9.3,10.0,10.7,12.67.4,9.2,11.0,13.0 | 1230,1420 | Low relaxation≤2.5% | JIS G3137, GB/T5223.3KS D3505 |
| PC bar for mine anchor cable | 16.0,18.0,20.0 | 1080,1270,1420 |
Product detail pictures:
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We are also specializing in improving the things management and QC method in order that we could retain terrific edge inside the fiercely-competitive small business for 2021 High quality Low Relaxation Seven-Wire Strand For Prestressed Concrete - Mine Supporting Big Diameter PC Bar – Silvery Dragon, The product will supply to all over the world, such as: Oslo, Cyprus, Hyderabad, Our company warmly invites domestic and overseas customers to come and negotiate business with us. Allow us to join hands to create a brilliant tomorrow! We've been looking forward to cooperating with you sincerely to achieve a win-win situation. We promise to try our best to deliver you with high quality and efficient services.
By Hellyngton Sato from Malawi - 2017.07.07 13:00
The company has rich resources, advanced machinery, experienced workers and excellent services, hope you keep improving and perfecting your products and service, wish you better!
By Jenny from Nicaragua - 2018.12.28 15:18
