GROUTED CABLE BOLTS

These products were designed to improve the productivity of ground support installation in underground mining and tunnelling applications. Using the pumpable resin enables the load to be taken up in minutes rather than the typical 24 hours from cementitious grouted systems.

CarboThix™ Fast

CarboThix™ Fast is an immediate partially stiffening and very fast curing dual component silicate resin for bonding injection drilling anchors, also for rock stabilization and water sealing. CarboThix Fast was developed to improve the productivity of ground support installation in underground mining and tunnelling applications. Using the pumpable resin enables loads to be taken up in minutes rather than the typical 24 hours from cementitious grouted systems. Typical applications of CarboThix Fast include grouting of cable bolts, steel or GFRP bolts, and sealing of roof bolts.

CarboThix™ 2

Typical applications of CarboThix™ 2 include sealing of injection bolts, steel or GFRP rods, and sealing of roof bolts. During application, the two components are intimately mixed and achieve a grease-like viscosity (the so called Thix effect) so that the grout stops flowing and cures to form a tough elastic and non-porous resin that will not mix with water or be diluted in wet holes.

Cable Bolts incorporate much higher strengths than  traditional bolts do, providing a much greater range of flexibility that adjust to the movement of the earth’s strata. 

Cable Bolts are applicable where standard ground support is marginal or inadequate. Common application areas include: tail gates, bleeders, recovery rooms, set-up rooms, head gates, intersections and other mine areas where longevity and additional support is required.

Significant Advancement in Roof Support Technology

• Exclusive bulbing system provides improved resin mixing and anchorage
• Available in passive or post-tensioned systems
• Available in two diameters
• Galvanized strand is available for applications where stand times are greater than one year

The new cable connector system eliminates the waste created when separate barrel and wedge units are provided.

This unique design incorporates the wedges and helps keep them “clean” for maximum installation loads. The cable connector can be loaded to the cable tensile strength without shearing the strand. Our research indicates that the design capacity of the CSS should be limited to the ultimate strength of the cable being used, approximately 30 or 40 tons.

SDS Square Head Cable Bolts can be used in every application where traditional cable bolts are used and where standard ground support is marginal or inadequate. Common application areas include: gate roads, bleeders, recovery rooms, set-up rooms, intersections and other mine areas where additional support is indicated.

Added benefits of this cable bolt with its innovative square head indented strand design are improved resin/strand mechanical interlock, eliminated or reduced bulbs, lower hydraulic pressure during insertion and better encapsulation.

It incorporates various truss anchor types and two different truss shoe assemblies along with a cable cross member in concert with threaded U-bolts for re-tensioning without requiring hydraulic power, thus making it a very strong and highly flexible system.

Truss systems have evolved and currently many systems incorporate high strength cables as a key component to add flexibility and capacity. One such system is the Minova U-Bolt Hybrid Truss System.

Specifications

• Truss bolts made from 7/8” Grade 75 material
• Cross-members made from 0.6” (270K) low relaxation, 7-strand cable
• Nominal strength of 30 tons
• Hole diameters – 1”, 1-3/8”