TRADECC introduces new PU injection resin with self-injection capacity
TRADECC expands its product portfolio with the introduction of PC® Tunnelinject 2K 6822 LV. This very low viscous, fast reacting, two-component polyurethane injection resin uses the principle of self-injection to push itself further in the crack. The resin is ideal for the consolidation of soil and water sealing of structures with high water flow or pressure, often encountered in tunneling. In wet structures it increases 8 to 10 times in volume and forms a very strong polyurethane foam. In dry structures the product forms a solid mass. When the injection resin is completely cured, PC® Tunnelinject 2K 6822 LV becomes completely watertight and reinforces the treated structure.
The benefits of PC® Tunnelinject 2K 6822 LV are numerous. The resin has a very low viscosity (average of 175 mPas at 20 °C) that seals even the finest cracks, and a compression strength around 70 MPa, when reacted in a solid mass without presence of water. The strong foaming ensures that less resin needs to be injected to seal voids and cracks. And finally, the product reacts in contact with water via a pumping effect. As a result, the resin pushes itself deeper into the porous rock or concrete structure that needs to be reinforced.