Quite often, property owners face a prosaic problem — the appearance of cracks in the walls. The reason for this may be different factors. We will tell you more about the main causes of cracks, the best way to repair walls and how to do it.
Why do cracks appear in the walls?
External cracks most often appear due to:
deformations, distortions of load-bearing structures in the process of soil shrinkage- defects in the drainage system, the impact of groundwater masses
- high load on the wall, which arose due to inaccuracy of calculations during construction
- incorrect choice of materials or incorrect preparation of building mixes
- regular changes in humidity and ambient temperature.
Internal cracks are often associated with:
- non-compliance with the requirements for humidity and air temperature during the hardening of the concrete screed
- incorrect composition of concrete and other mortar.
Which repairman is used to seal cracks in the walls?
It can be repaired quickly and efficiently with the help of one—component repair mixes based on cement - for example, Teknorep 200. This is a repair thin-layer mixture with a density of 2.05 kg/l. The substance reinforced with polymer fibers has a wide scope of application. It is used in the repair of any mineral surfaces, sealing cracks in engineering structures — highways, dams, mines. It is also suitable for filling voids left after removing the formwork during the construction of concrete structures, used for minor repairs to obtain a smoother plane.
The size of the granules is 0.700 mm, Teknorep 200 can be applied in a layer from 3 to 30 mm. The lifetime of the finished solution is ≥ 45 minutes. It is also worth paying attention to the high strength of the substance: the compressive strength is > 25 N/mm2, the adhesion strength with concrete is > 1.0 N/mm2. Shrinkage of the mixture > 0.8 N/mm2.
What are the advantages of Teknorep 200 cement repair mix
The main advantages of this thin - layer composition include:
safety, non-toxicity of the mixture- the possibility of applying a thin layer from 3 to 30 mm
- resistance to freezing and thawing
- Teknorep 200 does not cause corrosion
- ease of operation — the substance is kneaded in a clean container with water according to the instructions and applied to a pre-prepared surface with a spatula.
