a high- tech enterprise and devotes itself to the technological development, production, sales and service of FRP rebar, rock bolt, profile and related accessories.
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HIGH TORSION GFRP ROCK BOLT
Our products are widely used in tunneling, coal mine, metro, slope stabilization, rock surface anchoring, marine construction, port foundations and excavation project etc. The products have been exported to Europe, Oceania, East Asia, South Asia, Middle East, and America.
Category:
Solid FRP Rockbolt
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DESCRIPTION
Compared with steel bolts, low torque is the main reason for restricting the widespread use of FRP bolts. The company developed high-torque FRP bolts by improving the structure of the bolt and optimizing the material design, which overcomes the low torque of traditional FRP bolts. The shortcomings can be pre-stressed by torque to improve the stability of the supporting structure.
|
Classificatio-n |
Type No. |
Diameter (mm) |
Bolt ultimate load |
Thread ultimate load (kN) |
Cross section (mm2) |
Ultimate tensile strength (MPa) |
Modulus Of elasticity (GPa) |
Torsion (Nm) |
Ultimate shear strength (MPa) |
|
|
(Steel) |
(FRP) |
|||||||||
|
Normal high torsionrockbolt |
F61-18 |
18 |
140 |
/ |
50 |
214 |
650 |
≥40 |
60 |
≥150 |
|
F61-20 |
20 |
175 |
/ |
60 |
269 |
650 |
85 |
|||
|
F61-22 |
22 |
220 |
/ |
60 |
330 |
650 |
100 |
|||
|
F61-23 |
23 |
250 |
/ |
70 |
363 |
650 |
120 |
|||
|
F61-25 |
25 |
300 |
/ |
70 |
434 |
650 |
150 |
|||
|
Enhanced high torsionrockbolt |
F63-22 |
22 |
200 |
/ |
90 |
330 |
600 |
300 |
||
Key Words：FRP Rebar GRP Rockbolt FRP Profile Accessories FRP Production Machine
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