Construction

The deep knowledge of cements, hydraulic mortars and clays and the constant demand of our customers have helped TEKNA to expand its range of additives also in the field of tunneling, geotechnical engineering and restoration. Therefore, to the existing additives we have implemented new products such as protective colloids, foaming agents and admixtures for Spritzbeton.



Products For TUNNELS, GEOTECHNICS & RESTORATION

TEKGUN

Alkali-free setting accelerator agent for shotcrete. It generates the immediate loss of consistency and rapid hardening of mortar or shot concrete, allowing complete adhesion to any kind of support. Dosages vary widely depending on the type of product and conditions of use.

TEKGUN NAF

Alkali-based setting accelerator for shotcrete. It generates the immediate loss of consistency and rapid hardening of mortar or shot concrete, allowing complete adhesion to any kind of support. Dosages vary widely depending on the type of product and conditions of use.

ESPANS DRY

Shrinkage reducer and anti-cracking. Prevalent use: grouts, mortars and controlled-shrinkage concrete. Features: powder admixture to add in the preparation phase. It contrasts the effects of cement shrinkage by generating a controlled expansion. Shrinkage control.

ESPANS 100

Expanding demolition agent. Demolition agent for concrete and rocks in those cases where it is not possible to use of explosives. Powerful expansive agent able to break and demolish the material in which it is confined.

ESPANS FLOW

Super fluidifying agent for grouts, mortars and controlled-shrinkage concrete. Main Use: grout, mortars and controlled-shrinkage concretes. Powder admixture to add during the preparation phase. This product has a double effect: it contrasts the shrinkage effects of cement and reduces the water supply, improving the workability and fluidity.

AETERNUM CABLE

Injection mortar for restoration. Main use: Injection and filling for postcompression cables and construction poles. Features: injection grout ready to use, that only needs a specific quantity of water addition. By using the right dosage of additives it guarantees a perfect result in terms of fluidity, resistance, shrinkage control.