Repair of concrete structures and reinforced concrete bridges. Teknorep 300 EX concrete repair compound is a professional solution.

The number of reinforced concrete bridges and structures in operation in the world is simply enormous. This is due to their reliability, durability, and wear resistance. However, such structures are constantly exposed to moisture, climate change, and mechanical loads and can lose their characteristics over time.

If defects such as cracks, spalling and corrosion of reinforcement are promptly repaired, reinforced concrete bridges can last for centuries. That is why a quality repair material such as Teknorep 300 EX is a key factor in restoring the strength and durability of structures.

 

Causes of destruction of reinforced concrete buildings and structures

  • Climate changes (temperature changes, humidity, frost)
  • Natural phenomena (earthquakes, floods, hurricanes)
  • High loads (heavy traffic, vibrations)
  • Constant contact with aggressive environments (salts, chemical reagents, humidity)

 

Over time, under the influence of these factors, the following may appear on the surface:

  • Corrosion of reinforcement and concrete
  • Cracks (oblique, normal, mesh)
  • Bulging or exposed reinforcement
  • Concrete chipping and peeling
  • Changing the color of the concrete surface

 

These defects reduce the performance of the structure, so it is necessary to use reliable repair materials that will protect the structure from further destruction. Teknorep 300 EX is an effective choice for the restoration of concrete structures.
Teknorep 300 EX is a one-component, non-shrinking cement-based repair mixture reinforced with polymer fibers. It is ideal for the repair of any concrete structures, including bridges, tunnels, roads, subways and other objects.

 

Main characteristics of the material

  • Compressive strength: 60 N/mm²
  • Elasticity: modulus of elasticity 20 GPa
  • Water resistance: protection against moisture, sulfates, chlorides
  • Application thickness: 10-40 mm
  • Consumption: 1.8 kg/m²
  • Resistance to low and high temperatures
  • Adhesion to concrete and metal: 2 MPa
  • Anti-corrosion properties

 

Areas of application Teknorep 300 EX

  • Elimination of defects on concrete surfaces (10-40 mm)
  • Filling holes after dismantling the formwork
  • Repair of concrete bridges, highways, tunnels, subways
  • Restoration of prefabricated reinforced concrete structures
  • Repair of vertical, horizontal and ceiling surfaces
  • Protection before applying waterproofing coatings

 

How to prepare the surface before repair?

  • To ensure reliable adhesion, it is important:
  • Clean the surface from dirt, oils, rust and detergents.
  • Expand cracks (minimum 20x20 mm) for better adhesion of the material.
  • Clean or replace the fittings, treat them with Tekno AD to protect against corrosion.

 

Teknorep 300 EX preparation and application process

  • Add 25 kg of the mixture to 3.5-4.5 liters of clean water.
  • Mix with a mixer on low speed for 5 minutes.
  • Leave the mixture for 3 minutes, then mix again for 2 minutes.
  • Apply to a pre-moistened surface in several layers (maximum thickness of one layer – 40 mm).

Recommendation: in adverse climatic conditions, after repair, it is worth applying Teknokur 100 varnish, which will prevent the formation of cracks.

If you need a fast and effective solution for repairing concrete surfaces, including bridges, tunnels, roads and other civil engineering structures, Teknorep 300 EX will be the best choice.

For additional information and the correct selection of material, call: +38 (067) 486 42 41