Bar configuration
Specify solid or hollow construction, diameter, thread or surface geometry, length and any coupler arrangement. Each construction needs its own qualification.
Custom product inquiry
FRP Rock Bolts
GFRP rock bolts are a specialist ground-support assembly: the bar, nut, bearing plate and grout interface must work together. Send F1 Composite the support specification for a sourcing and qualification review before confirming a supply package.
FIG. 1 FRP Rock BoltsConcept diagram · not to scale
Define the product for your assembly
Tunnel face reinforcement, mine support and selected ground-anchor applications where the design calls for qualified GFRP reinforcement or cuttable components.
End assembly
Nut, plate, washer and connection details must match the bar and required installation procedure. Assess the full assembly capacity.
Bonding and installation
Identify cementitious grout or resin cartridge, borehole geometry, installation equipment, cure conditions and acceptance testing.
Send the required configuration for review. The quotation confirms availability, production or sourcing scope, tooling, minimum order, documents and delivery. Performance values must come from the offered grade and assembly.
Resolve these checks before ordering
CHECK 1
System capacity
Evaluate tensile rupture, bar shear across joints or bedding planes, thread stripping, plate bearing, bond failure and displacement. The nominal tensile strength of a bar alone is insufficient to specify the anchor.
CHECK 2
Temporary or permanent support
State service duration, sustained load, groundwater chemistry and temperature. For permanent support, expect a sustained-stress limit well below the short-term tensile strength and request creep-rupture evidence (ASTM D7337/D7337M) for the offered bar.
CHECK 3
Project acceptance
The responsible ground-support designer defines the support pattern and acceptance tests. Cut-through behavior, mine fire requirements and other special conditions require project-specific confirmation.
FRP Rock Bolts: purchasing questions
Can ordinary GFRP concrete rebar be used as a rock bolt?
Only a qualified ground-support design can establish suitability. A concrete reinforcing bar does not automatically include the thread, nut, plate and bond performance needed for a rock-bolt assembly.
Are cuttable bolts automatically approved for tunneling?
No. The tunnel designer and equipment requirements determine acceptability. Submit the cutting, load, installation and testing requirements with the inquiry.
Custom profile development →Review available product evidence →
Request FRP Rock Bolts
Start with a drawing and the intended use. These details help define the proposed supply package and qualification plan. We reply within one business day; a formal quotation follows once the specification and delivery are reviewed.
- Support design and temporary or permanent duty
- Bar diameter, construction, length and quantity
- Required assembly load and displacement criteria
- Nut, plate, coupler and grout specifications
- Groundwater, temperature and project acceptance documents