Mineral Bolt
Resin Injection type bolting is an excellent new technology that can significantly increase safety and speed up development. In many instances, it can greatly improve rock support in all sorts of ground conditions. The most interesting such system is DSI’s silicate resin that we call “Mineral Bolt” resin.
The thixotropic silicate resin can be used with a wide variety of bolts, such as DSI’s bolts, standard and FRP rebar, both solid and hollow core, dynamic hollow core, cable bolts, VersaBolts™, cone bolts, etc. The resin chemistry is one of the most advanced in the market, and bond strength testing has
Mineral Bolt is a two-component, organic and mineral resin with high strength, designed for the installation of rock bolts. It is suitable to firmly fix mechanical bolts or anchors in the borehole, including the DSI Hollow Bar System. Mineral bolt is available in several versions, varying in reaction times and the thixotropy effect.
Organo-Mineral Silicate Thixotropic Resin for Bolting
| Product | Product Description |
|---|---|
Mineral Bolt MI | - For mechanized installations - Perfect for application when immediate support is required - Short setting time - Can be used in lower temperatures |
Mineral Bolt Medium | - Excellent for longer (>3 [m]) hollow bar grouting |
Mineral Bolt SLOW | - Extended setting time |
Mineral Bolt ULTRA SLOW | - Long setting time - Specifically designed for cable grouting in elevated temperatures |
Mineral Bolt injection resin is becoming increasingly used due to several advantages:
- set times can be configured to theindividual applications
- fast curing process speeds uprock reinforcement and thereforedevelopment
- component A and B are both low viscosity, making them easily pumped, including long distances
- the resin is thixotropic, and once pumping stops, viscosity increases and the resin will stay in place
- it is easily mixed
- can be used in difficult works in the presence of water and all types of ground conditions. It is especially useful in loose and fractured rock, but also when drill holes become oversized and conventional bolting proves difficult
- systems logistics, from small drums to higher volume containers
- no dust issue that is associated with mixing cement
- reduced physical handling in comparison with cement
- consistent quality control is assured with every bolt installed, when pumped in the proper ratio of 1:1
- can be used with automated bolters or with manual installations
