Dual speed Resin Capsule is a two-speed polyester resin anchoring system increasing your productivity and efficiency. It allows for both fast and slow curing times.
This product eliminates the need to use multiple resin capsules to achieve pre-tensioning of fully encapsulated resin grouted rock bolts. It is used as an anchoring medium for rock bolts and long tendons to provide primary roof support in mines and tunnels.
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A special plastic cap with radial projected ends (known as a "parachute") may be fitted to one of the cartridge tips and acts as a retaining element preventing the cartridge from sliding out of the bore -hole. The choice of cartridges depends on the diameter of the rock bolt and bore -hole. An annular gap of 3 mm is ideal to permit rupture of the cartridge membrane and to ensure adequate mixing of the two components.
After drilling, the desired number of cartridges are inserted into the bore -hole followed by the rock-bolt. The end of the rock-bolt is angle cut so as to form a sharp tip to ease membrane rupture. As soon as the rock -bolt is inserted into the bore-hole it is spun in order to facilitate the mixing of the resin with the hardener. Spinning is stopped as soon as the rock -bolt is inserted to full length of the bore-hole and as per the recommended "Spin Time". The Rock-bolt is then left immobile (as per the recommended "Hold Time") in order to allow the hardening reaction t o take place.
The hardening time (hold time) depends on the resin set time, the rock temperature as well as to the energy given to the system while the rock-bolt is inserted into the bore-hole.
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