After winter, many owners of houses and industrial facilities face the same problem: foundations, cement screeds begin to collapse, concrete blind areas, stairs and fences crack. And it is important to understand that in most cases it is not the quality of the concrete that is the problem. The main reason is that the concrete was not protected from moisture and frost.

The main cause of concrete failure

Concrete has a porous structure. This means that it absorbs moisture from the environment: rain, snow, condensation. 

Next, the destructive process is launched:

  • water enters the pores of the concrete

  • when the temperature drops, it freezes

  • increases in volume when frozen

  • creates internal pressure

  • breaks concrete from the inside

After several freeze-thaw cycles, the following appear:

  • microcracks

  • surface peeling

  • concrete crumbling

  • loss of strength

That is why even good concrete can quickly collapse without proper protection.

How to protect concrete from destruction

To ensure that concrete lasts for years, it is necessary to minimize water absorption and strengthen its surface.

1. Surface protection with varnish

Teknocila - acrylic varnish based on organic solvent:

  • closes the pores of concrete

  • reduces moisture penetration

  • strengthens the surface layer

  • suitable for exterior and interior work

This is a basic level of protection that already significantly reduces the risk of destruction.

2. Protection with epoxy paint

Teknobond 600 is a two-component epoxy paint:

  • creates a dense, durable coating

  • resistant to aggressive environments and chemicals

  • suitable for concrete, metal and wooden surfaces

Ideal for garages, warehouses, and production facilities.

3. Polyurethane protection against ultraviolet and moisture

Teknobond 650 P — polyurethane paint:

  • UV resistant

  • does not fade in the sun

  • withstands rain, snow and temperature changes

  • retains color and shine

Recommended for exterior concrete structures.

4. Reinforcing concrete with topping

Teknoser 300 — concrete hardener with corundum chips:

  • increases wear resistance

  • significantly strengthens the surface

  • increases the strength of concrete up to 2 times

Used for floors in garages, warehouses, and parking lots.

5. Deep strengthening by impregnation

Teknoser Sodyum — lithium sodium silicate liquid hardener and deduster for concrete:

  • penetrates deep into concrete

  • strengthens the structure from the inside

  • reduces dust

  • increases durability

This is one of the most effective ways to strengthen and dedust concrete. 

What to do if the concrete is already crumbling

If the concrete has already started to crumble or peel, simple protection is not enough - repair is needed.

Teknogrout EX is a self-leveling, one-component, non-shrinking mixture with high adhesion to concrete and metal:

  • quickly gaining strength

  • curing time — 2 hours

  • compressive strength — 60 MPa

  • application thickness - 10-60 mm

Teknogrout RAPID is an ultra-fast, self-leveling, non-shrinking bulk repair compound. It begins to set in 5 minutes.

  • super fast strength gain

  • walking load — 5 min

  • commissioning — 1 hour

  • compressive strength — 65 MPa

  • application thickness - 10-40 mm

Teknogrout 350 is a bulk, non-shrinking, fast-setting concrete repair compound based on special cement and fine-grained aggregate. When mixed with water, the material forms a fluid composition with good adhesion to concrete and metal.

  • commissioning — 24 hours

  • compressive strength — 60 MPa

  • application thickness — 10-75 mm

Teknorep 200 is a thin-layer polymer-cement repair mixture for concrete. It is used for repairing vertical and horizontal surfaces, reinforced with polymer fibers.

  • commissioning — 24 hours

  • compressive strength — 25 MPa

  • application thickness — 3-30 mm

Teknorep 200 EX is a thin-layer polymer-cement reinforced repair mixture for vertical and horizontal surfaces, reinforced with polymer fibers.

  • commissioning — 24 hours

  • compressive strength — 35 MPa

  • application thickness — 1-30 mm

Teknorep 300 is a thixotropic, non-shrinking repair compound reinforced with polymer fibers.

  • commissioning — 24 hours

  • compressive strength — 45 MPa

  • application thickness - 10-40 mm

Teknorep 300 EX is a non-shrinking, high-strength repair compound for repairing vertical and horizontal surfaces. It is used for deep structural damage. 

  • commissioning — 24 hours

  • compressive strength — 50 MPa

  • application thickness - 10-40 mm

Teknoself is a self-leveling cementitious thin-layer mixture reinforced with synthetic fibers and with increased adhesive strength, designed for effective repair and leveling of existing floors in residential, commercial and public buildings.

  • commissioning — 24 hours

  • compressive strength — 25 MPa

  • application thickness — 1-10 mm

Teknoself 500 is a reinforced self-leveling concrete repair mortar with synthetic polymer additives and increased adhesive strength.

  • commissioning — 18 hours

  • compressive strength — 40 MPa

  • application thickness — 1-30 mm

How to choose the right repair mixture in our material:  Concrete repair without mistakes: how to choose a repair mixture so as not to redo it every year.

Concrete collapses not because it is “bad”, but because of the influence of external factors and the lack of protection. The main reason is moisture, which penetrates the pores of the concrete, and when it freezes, it expands and creates internal pressure. This leads to microcracks, delamination and gradual crumbling of the surface. Additionally, the situation is aggravated by temperature changes, salts and chemical reagents that destroy the structure of the concrete. If the concrete surface does not have a protective layer or waterproofing, the destruction process only accelerates, and even a strong structure loses its integrity over time.

To avoid problems: