Concrete Repairing

What do we need?

After demoulding appear small or large voids and nests in the concrete, the columns, the beams or slabs. Sometimes insufficient vibration, knocks, abrasion, carbonation or other causes, the damaged edges and / or surfaces of the columns, stairs and concrete walls. Similar damage can be observed in pipes, gutters, or other concrete elements.

How do we do it?

The repair of the gaps that have been created will be with high strength, fiber reinforced repair mortar WRM 525 which has strong adhesion to the substrate, no shrinkage and high strength similar to those of the concrete for rehabilitation.

Products used

WRM 510

WRM 525

Step by step

  • With Percussion tool or reed remove loose or charred parts of concrete. If metal reinforcement has been revealed clean it from concrete debris and corrosion and prime it with anticorrosion brushable mortar WRM 510 (see . Corroded reinforcement repairing). If reinforcement is worn largely must be restored.
  • Wash surfaces with water under pressure  before apply the repairing material and let it dry.
  • Apply fiber reinforced repairing mortar WRM 525 to close the gaps and nests in damaged concrete. Where necessary molding to restore part of the concrete and then inject repair mortar WRM 525 taking care to make diligent laying and cover all the gaps. Be sure to get out all the produced air and there are no gaps. The screed thickness may be up to 4 cm. The repair mortar should be applied with diligence and pressed firmly to cover all the gaps of the depth to the outer surface. With extreme care should cover the metal reinforcement.
  • When we closed the gap, smoothing the outer surface or roughened if you will be apply plaster. To obtain uniform strength and prevent cracks, the final surface must be kept moist for the first few days after application, and prevent fast drying with suitable liquid cover. Particular care should be taken during the summer months and on surfaces that are under strong sunlight. The material must be applied when the external temperature is between + 5C and + 35C, and not in the rain.

Product Categories : Repairing mortars

Products used: