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:
Related Product Guide:
Our target should be to consolidate and improve the high-quality and repair of current goods, in the meantime regularly produce new solutions to meet unique customers' needs 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: Danish, Netherlands, Marseille, we rely on own advantages to build a mutual-benefit commerce mechanism with our cooperative partners. As a result, now we have gained a global sales network reaching the Middle East, Turkey, Malaysia and Vietnamese.
By Mabel from Mecca - 2018.05.15 10:52
The factory technical staff gave us a lot of good advice in the cooperation process, this is very good, we are very grateful.
By Zoe from Guatemala - 2017.07.28 15:46
