Injection of polymer resins

Injection works with PU (polyurethane)-systems

1. Rehabilitation of failed concrete structures.
2. Compacting within tunnel sections.
3. Compacting withing dilatatation fugues and working boundaries.
4. Support of fundaments.
5. Consolidation of supporting constructions.
6. Укрепване на забоя в тунелното строителство чрез "защитен чадър".

Technology of the PU-injection works

1. Analyzation of the problem and choosing the right materials and technology.
2. Bore openings in the requisite sections of the construction.
3. Mounting of injection packers.
4. Mounting of PU-injection pump.
5. Injection of PU resins within water-saturated rifts and caverns.