Materials for waterproofing concrete. for injection,

Concrete, despite the high strength characteristics, needs protection from moisture. He, of course, does not have as pronounced hydrophobicity as wood, but over time, the water is still able to settle in the pores of its structure, giving rise to destructive processes. In this article we will look at the most popular and effective methods of waterproofing a cement surface in order to guarantee a long operational life.

The range of all kinds of waterproofing mixtures

Methods of waterproofing

Various waterproofers differ in their composition and method of application. They can be, as used for treating an already frozen surface, or for adding to the kneaded solution. But let's move on to more specific options.

Injection

Implementation of injection waterproofing

This is a very innovative method, which, as the name suggests, consists in introducing a gel-like substance into the concrete structure, where it is transformed into a waterproof, tight membrane.

It has several important advantages:

  1. Very high efficiency. Prevents any penetration of fluid for many years.
  2. Wide range of applications. It makes it possible to cope even with gushing leaks, and not only with increased dampness.
  3. Versatility. Application is possible not only to concrete, but also to such porous materials as brick, artificial foam concrete or real stone.
The elimination of porosity brick wall
  1. Strengthening the strength characteristics of the processed object.
  2. Easy to use do-it-yourself. WITHам процесс несложно осуществить во время заливки, после неё, и в процессе реставрационных работ.

There are also some drawbacks:

  1. High price. You need to pay for quality results, but you will be sure of it.
  2. The need for special equipment, including a high-pressure pump.
Unit for filling a water-repellent gel

WITHовет: есть смысл приобретать необходимое оснащение в том случае, если вы планируете заниматься монтажом гидроизоляции профессионально. Это позволит вам быстро окупить все затраченные средства.

For the introduction are used:

  • polymer gels;
  • epoxy mixtures;
  • acrylate gels;
  • special microcements.
Photo of containers with polyurethane resin for injection into concrete

Penetration

Applying a waterproofing mix to a concrete wall

Проникающая гидроизоляция бетона имеет широкое распространение благодаря простоте использования и высокому качеству конечного результата. WITHоответствующий раствор наносится на поверхность, после чего происходит её попадание в поры и последующая кристаллизация.

WITHхема действия проникающей гидроизоляции

Benefits of application:

  1. The possibility of use from the inside of the house under the finishing material.
Applying a moisture resistant solution to the basement walls
  1. The use of water as a catalyst.

Two positive points immediately follow from this:

  • The possibility of applying to a wet surface. This will only improve the result.
  • «WITHамозалечивание» – в результате появления новой порции влаги даже после длительного периода времени вновь спровоцирует химический процесс кристаллообразования.
  1. Vapor permeability Allows you to maintain a favorable microclimate inside the building.
  2. Long service life, which is almost equal to the durability of the concrete itself.
  3. Simple application instruction.

Tip: It is recommended to use a spray gun. It will significantly speed up and facilitate the process.

Liquid waterproofing of concrete is performed using a spray gun

The disadvantages of this option are very minor:

  1. The combination is possible only with concrete. On the other hand, we also consider the protection of this particular material from moisture.
  2. In the process of applying the necessary temperature of not less than +5 degrees Celsius. That is, either choose the summer period, or process the wall from inside the building.

The best representatives of this type of waterproofing today are the Millennium and Penetron brands of Spanish production.

Vdra with Penetron

WITHоздание разделительного слоя

Bituminous waterproofing - practical and inexpensive

Applying coating waterproofing on a concrete surface allows you to create a reliable water-repellent layer between the wall itself and the finishing material. It has the following features:

It is possible to distinguish the following types of this type of protection from moisture, depending on the base used and their characteristic technical characteristics:

The basis of the coating material pros Minuses
Cement
  • long operational term, lack of shrinkage;
  • low cost;
  • ease of operation
  • need for plastering skills
Cement-polymer
  • resistance to any chemical attack;
  • ecological purity
  • the need for special preparatory work;
  • very high cost
Cement chemical
  • easily tolerates prolonged contact with water;
  • deep penetration into the structure;
  • the possibility of applying, if necessary, urgent repair;
  • ecological purity
  • requires special handling skills
Polymer
  • ease of use;
  • universality, it is equally well combined with any surfaces;
  • deep penetration into the pores;
  • high resistance to frost, without consequences transfers up to -50 degrees Celsius
  • requires pre-treatment of the surface with a special acrylic solution
Polyacrylic
  • simple instruction manual;
  • universality;
  • very high moisture insulation, superior to 0.7 MPa
  • also needs careful pre-priming with special acrylic blends
Bitumen-latex
  • ease of use;
  • profitability;
  • increased fire safety
  • the need for preparatory work, and in some cases even reinforcement

Tekmadray elast - a two-component, hard-elastic material will be an excellent choice for the implementation of coating waterproofing.

Tekmadray elastat dry and liquid

Adding to the solution

Addition of waterproofing compound

WITHуществует множество модифицирующих добавок, позволяющих ускорить или замедлить темпы застывания, защитить от замерзания, усилить прочность. Также существуют и такие, которые попадая в бетон, кристаллизуются в нём, предотвращая проникновение воды.

In the method of using this moisture protection lies at the same time its advantage and disadvantage. Plus, ease of use, since you only need to pour the purchased solution into the total solution. The downside is that this can only be done at the concreting stage.

Conclusion

Concrete, despite its excellent strength, may eventually suffer from water. To avoid this, use one of the ways to improve the moisture resistance of cement, a brief summary of which is summarized in the following table:

Method and materials used Merits disadvantages
Injection waterproofing gel mixture High efficiency, versatility The need for special equipment
Penetrating waterproofing solution formed in crystals Possibility of combination with a wet surface, ease of use, the use of water as a catalyst The need to comply with the temperature regime not lower than +5 0WITH
Obmazochnoe waterproofing of concrete, creating a waterproof layer Frost resistance, profitability The need for preparatory processing of the concrete surface
Additives that increase the moisture resistance of the cement slurry Ease of use Ability to use only at the initial stage of concreting

The video in this article will provide you with more information. Take care to protect your concrete structures from the harmful effects of excessive moisture.

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