Grouting – Resin Anchors
In 2008 Minova completed an extensive product development program focusing on improving the quality of installed resin bolts. Key product development objectives included improved mixing quality, and encapsulation consistency, reduction of hole back pressure, extended shelf life and a lower cost formulation. All the proposed development objectives were achieved culminating in the launch of the Lokset Supamix® range of resin capsules.
The Lokset Supamix® range incorporates significant improvements:
- Lowest available mastic:catalyst ratio of 2:1 - improving mixing quality and consistency.
- Lower viscosity and modified rheology - easier push through and improved encapsulation.
- Improved formulation providing extended shelf life - 6 months at 25OC to reduce wastage.
- Larger catalyst compartment - improved catalyst compartment mixing, bolt should not miss.
- Lower cost.
Punch Shear Test
Measured according to BS 2782 (Part 3), with slow set Lokset® resin. Typical results:
Push out Test
Measured on 22mm bolt, 50mm encapsulation in 28mm I.D. threaded cylinder, with slow set resin.
|Age||Push Out Force|
Pull out Test
Measured with fast set Lokset® resin. 300mm encapsulation in 60MPa grout using 21.7mm core diameter high tensile grade bolts in 28mm diameter hole. Typical results: