Geofoam/Wilkit T - rapidly reacting - strongly expanding

Geofoam is a high-efficiency, low exothermic dual component “Urethane-Silicate” injection grout, specially designed for the immediate stabilisation of unconsolidated geological formations during tunnelling, drilling, etc. in civil engineering, mining, tunnelling, and geotechnical application.

Advantages

· Extremely quick reaction times, effectively reducing stand-still times
· Lower consumption due to very high expansion and penetration
· Use of Minova standard injection pumps
· Injection against the water-flow possible
· Environmentally engineered system
· Once cured, Geofoam can easily be cut through by TBM
· Highest progression speeds in broken strata due to effective front and radial cohesion of the soils and rocks
· Lower disc and wheel maintenance costs due to even spread of penetration forces
· Low exothermic reaction temperature makes it a unique alternative for injections in mines etc.

Unit

Density at 25 °C

kg/m3

1 455 ± 30

1 220 ± 15

Flame Point

° C

--

> 200

Viscosity at 25 °C

mPa*s

270 ± 70

140 ± 15

Start of foaming

End of foaming

Foaming factor

Geofoam consists of 2 components which react immediately after mixing and transform very quickly into extremely resilient and durable foam. The mixed resin can be injected into the rock through a packer. Within a few seconds, the reaction sets in along with an increase in volume and the resin mixture starts foaming. The low viscosity of the grout, combined to the high foaming factor, not only allows the grout to enter into the finest cracks, but due to its particular structure, Geofoam is particularly suited for the filling of large voids and cavities without the well-known shrinkage problems, while offering a very strong bond against pressurised water flows.

Standard dual component injection equipment can be used for the application of Geofoam. It ensures that the volumetric mixing ratio is kept even at high pumping pressures during application.

Geofoam is supplied in 20 and 30 litre disposable containers. Further packaging information is available on request.

For further details please see the Technical Data Sheet and Safety Data Sheets.

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