GFRP tube with integrated packer function for high pressure injection of weathered rock mass.
The high torque hollow bar is fitted with an expansion packer and integrated non return valve. Two additional valves are fitted to both ends of the tube, the top valve to open when the packer is inflated, the bottom valve to prevent backflow after injection.
The GFRP system allows cutting during heading or mining of ore. Rapid heading will not be delayed. Light weight makes handling easy, even in confined underground conditions.
|Outer Diameter (mm)||25|
|Inner Diameter (mm)||8|
|Cross Sectional Area (mm²)||350|
|Breaking Thread Load- Steel Nut||180|
|Beaking Thread Load- FRP Nut||70|
|Bending E-Modulus (Gpa)||40|
|Inner Pressure (MPa)||240|
|Strain At Failure (%)||2.1|
Bevedol® / Bevedan® is a two component, foaming polyurethane (PUR) injection system used to consolidate highly convergent strata. The system consists of a resin (Bevedol®) and a catalyst (Bevedan®) which is delivered into the strata via a pump unit and injection gun. The two components mix in the gun, which initiates the reaction of the product. The low viscosity mixture penetrates the smallest fissures, hardens and ensures the consolidation and sealing of the area submitted to treatment.
Carbofill® is a two component phenolic foam resin used for filling cavities. Component A is an aqueous phenolic resins containing a suspension of solid carbonates as a blowing agent and Component B is a blend of various acids which affect the foaming process and the curing reaction.
The final product is a lightweight material with a yellow to pink colour. Ideal for filling of cavities in underground roadways and longwalls and the stabilisation and prevention of gas accumulation, stabilisation of debris and forming temporary plug seals.
Geoflex® is a non-expanding, elasticised, two component injection resin system. Geoflex® Part A is a specialised sodium silicate with additives. Geoflex® Part B is a modified polyisocyanate.
The final product is a tough, flexible material with extremely high bond strength that is resistant against acids, alkalis, brines and many solvents. Ideal for grouting/injection coal and adjacent strata, sealing of injection anchors and stabilisation of debris.