GFRP Solid Bolt System

FLEXIBLE. EASY TO HANDLE SYSTEM.

Glassfibre resin polymer (GFRP) bolting system is a comprehensive rock bolting system with various components that include a plastic nut, GFRP nut, steel nut, plastic plate, GFRP plate, couplings, adapter and injection connection. Available as solid and hollow bolts

The bolt has a high ultimate load and due to its profile, offers a maximum bond strength with all grouting materials. The bolt has a continuous thread and can be trimmed if required.

Solid bolts can be installed with cement grout or Lokset® resin capsules, while the installation of the hollow rods can be carried out with cement grouts or injection resins.

 

Continuously threaded, high strength rock bolting solution. Developed for strata support in mining and tunnelling, it has proven to be a versatile product for many applications. The GFRP system allows the bolts to be cut to length as required on location, as well as protecting equipment and machinery of they are required to be mined through. Due to it's high corrosion resistance, it is perfectly suited for long term and temporary ground support.

 

 

 

 

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Advantages
  • HIGH TENSILE STRENGTH
  • CUTTABLE
  • HIGH CORROSION RESISTANCE
Features
  • High ultimate load with a maximum bond strength between anchoring materials
  • High corrosion resistance and suitable for permanent support
  • Cuttable protecting machinery and equipment, preventing damage when drifting and enlarging tunnels
  • Continuous thread allows easy trimming of bolts if required
  • Low weight facilitating easy handling, minimises transport requirements
  • High flexibility suitable for applications without couplings in confined locations
  • Available in hollow and solid versions
  • Anti-static options available

Configurations

Mechanical Property (Typical) S20/200 Rock Bolt S22/250 Rock Bolt S25/350 Rock Bolt
Outer Diameter (mm) 20 22 25
Tensile Stress Area (mm2) 200 250 350
Ultimate Load (kN) 200 250 350
Breaking Load Thread - Steel Nut (kN) 100 120 180
Breaking Load Thread - GFRP Nut (kN) 60 70 70
Breaking Load Thread - GFRP Conical Nut (kN) 80 100 180
Torsion Resistance (Nm) 70 80 120
Tensile Modulus (GPa) 50 50 50
Strain at Failure (%) 2 2 2
Weight (g/m) 560 690 900

Related Products

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GFRP Mesh

Glassfibre resin polymer (GFRP) mesh provides surface support coverage to loose rocks between installed bolts. Suitable for temporary and permanent solutions. Low-weight, ideal for decreasing risks associated with manual handling.

This mesh complies with standard grid applications while providing the added benefits of durability and cuttability. The high load capacity at each joint, comparable to welded steel mesh, is unique and makes the design of GFRP grid reinforced RC structures a viable option. Available in a range of sizes to suit individual application.

 

 
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Lokset® Advance

Australia's only long life resin capsule offering 12 month shelf life. Improved efficiency & reduced storage, waste and disposal. This new resin offers 12 month shelf life with significantly enhanced storage abilities in both hot and cold conditions. A further reduction in resin volume will ensure cost reductions in freight, storage and waste.

The Lokset Advance resin capsule consists of a reinforced, thixotropic polyester resin mastic in one compartment and an organic peroxide catalyst separated by a physical barrier in the other. The rotation of the bolt during installation ruptures the capsule, shreds the skin and mixes the two components causing a chemical reaction and transforming the resin mastic into a solid anchor.

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