Penetrating waterproofing for concrete

Penetrating waterproofing is an option to think about when shielding concrete structures from water damage. Penetrating waterproofing functions by penetrating deep into the concrete, in contrast to conventional waterproofing techniques that create a barrier on the exterior. This contributes to preventing water from passing through, increasing the concrete’s resilience and longevity.

This kind of waterproofing works particularly well in damp environments like basements, foundations, and retaining walls. It shields against the damaging effects of freeze-thaw cycles and chemical exposure in addition to keeping water from seeping in. Penetrating waterproofing reduces the likelihood of cracks and other types of damage developing over time in structures.

This post will discuss the advantages of penetrating waterproofing for concrete, its operation, and the reasons it might be the best option for your project. Making educated decisions regarding waterproofing can be aided by knowing the ins and outs of this technique, whether you’re working on a new construction or trying to prolong the life of an existing structure. Let’s examine the specifics and discover how to successfully shield your concrete surfaces from problems caused by water.

How penetrating waterproofing works

Although the technique of waterproofing concrete with a finely dispersed cement-based mixture was developed in the 1950s of the 20th century, this technology has only recently become widely used.

The technology’s main function is to seal concrete’s pores, capillaries, and tiny cracks by coating the surface with a liquid composition made of a finely ground cement and sand mixture. The treatment causes a protective waterproof coating to form on the surface and fills the tiniest holes in the concrete body, known as micropores and microcracks, with water-insoluble waterproofing crystals.

The waterproofing composition can penetrate up to 40 cm into the concrete, filling in gaps and fissures as large as 3–4 mm and strengthening the structure. For 70 to 100 years, there won’t be a need for reapplication or the use of additional waterproofing materials thanks to the durability of this type of moisture protection.

Features of application

Concrete waterproofing through penetrating composition technology can be applied to any type of structure, subterranean or above ground, depending on its design and location. In addition to strengthening the concrete itself, the waterproofing substance keeps moisture from penetrating the reinforcing elements, extending the service life of reinforced concrete by two to three times.

Concrete surfaces can be treated with the protective composition both when new buildings and structures are being built and when existing ones are being repaired or restored.

Concrete penetrating waterproofing is made from a dry mix. Using a hand tool, the liquid composition is sprayed on or applied. This enables you to cover the whole surface of any shaped structure with a seamless, robust protective layer.

Vaporizable roll and coating materials that are intended to keep out moisture create an environment that is conducive to the growth of fungus when they are applied or laid on concrete that has retained moisture in its pores. On the other hand, penetrating waterproofing can be used on wet concrete because, as the cement hardens, the growing crystals will absorb or displace all of the moisture in the outer layer.

Advantages of the technology

A list of penetrating waterproofing for concrete’s advantages can be made based on studies and reviews:

  • wide scope of application;
  • quick preparation, ease of application to horizontal, vertical, curved surfaces;
  • no need to dry the concrete before treating it with a waterproofing compound;
  • environmental safety, harmlessness to human health;
  • work can be carried out at temperatures from -30°C to +75°C; there are mixtures designed for use on hot concrete surfaces (up to 85-105°C);
  • The protective coating formed on the surface of concrete is resistant to mechanical damage, does not peel off, is not afraid of exposure to aggressive environments, and does not require a primer before further finishing.

Scope of use

The purpose of penetrating waterproofing is to shield:

  • foundations;
  • walls and floors of basements and basements;
  • water tanks, wells, swimming pools, etc.d.;
  • walls and floors in rooms with high humidity – showers and bathrooms, laundries, cellars, etc.d.;
  • objects located underground – mines, tunnels, bunkers, storage facilities;
  • concrete boxes and trays for laying underground utilities.

Concrete penetrating waterproofing is a potent remedy that provides protection below the surface by penetrating into the concrete to create a barrier against moisture and water. By shielding concrete structures from internal corrosion, cracking, and water damage, this technique extends their lifespan. Penetrating waterproofing is a great solution for areas that are exposed to water, such as basements and foundations. It offers a durable and efficient defense that preserves the structural integrity and aesthetic appeal of concrete surfaces.

Best Penetrating Waterproofing for Concrete

The ratings of penetrating waterproofing for concrete are important considerations when selecting a material that effectively shields building structures from moisture.

The ready-to-use dry mixture typically consists of:

  • special cement;
  • fine-grained quartz sand;
  • chemically active additives that ensure crystallization of the substance in the pores of concrete structures.
  1. Penetrating waterproofing for concrete "Penetron" – time-tested material. It has long been known on the Russian market and is widely used by individuals and for industrial purposes. Its cost is quite high, but the quality of protection justifies it. Beware of numerous cheap imitations.
  2. "Kalmatron" – a composition that is suitable for waterproofing concrete and reinforced concrete structures with cracks, brickwork, aerated concrete, foam concrete blocks. A feature of the material is the ability to tightly seal large pores, cracks. But there is a limitation: "Kalmatron" is not recommended for use if the pH level at the site is in the range from 3 to 11.
  3. Penetrating waterproofing for concrete "Lakhta" – affordable domestic development. The advantages include the quality of protection almost at the level of "Penetron" and a wide range of compositions for various applications, including for the protection of seams.
  4. "KTtron 1" – penetrating waterproofing of concrete of Russian production. Protection from this material successfully resists the effects of sea water, highly aggressive environments. "KTtron 1" is affordable and economical to use.
  5. "Ceresit" – penetrating waterproofing for concrete, which is applied in two layers – with a brush and a spatula. The manufacturer offers a wide range of compositions for different conditions of use. In many cases, the treated surface needs to be protected from mechanical damage using cladding, screed or plaster that does not contain gypsum.

Restrictions on use

Structures composed of asbestos cement, gypsum-based materials, and lightweight porous concrete cannot be treated with penetrating waterproofing. This is because these materials have a lot of large pores and a low density, which means that they consume a lot of the working composition. In these situations, selecting a polymer coating composition or mastic made of bitumen is more cost-effective.

Moreover, penetrating concrete waterproofing is not the ideal choice for shielding damp foundations subjected to strong vibration loads.

These structures, in particular, include overpasses and supports for railroad, car, and metro bridges. This is because the waterproofing layer develops microcracks and becomes moisture-permeable.

Conclusion

A vast variety of penetrating waterproofing for both imported and domestic concrete is available on the Russian market. The specifics of the compositions’ application should be considered when making your selection. Chemically active substances and modifiers are chosen based on the material’s intended use.

It’s crucial to prepare the mixture and apply it according to the recommended technology. Concrete can be kept dry for many years by using a high-quality penetrating waterproofing and following the recommended procedures.

Aspect Details
Definition Penetrating waterproofing involves applying materials that seep into concrete, creating a barrier against water.
Benefits Improves durability, protects against water damage, and helps prevent cracks and corrosion.
Applications Commonly used in basements, foundations, water tanks, and other concrete structures exposed to moisture.
How it works The chemicals in the waterproofing material react with the concrete to form crystals, blocking water pathways.
Maintenance Requires minimal maintenance once applied, as the waterproofing properties are long-lasting.

One practical way to prevent water damage to concrete structures is to apply penetrating waterproofing. By creating a crystalline structure inside the concrete, it aids in obstructing water channels and guards against corrosion and leaks. This kind of waterproofing prolongs the life of the structure and improves the concrete’s durability.

The fact that penetrating waterproofing can be used on both new and old structures is one of its key benefits. It provides long-term protection without changing the concrete surface’s appearance because it functions from within. This makes it an adaptable option for a range of uses, including water tanks, tunnels, and basements and foundations.

Although effective penetration waterproofing necessitates appropriate surface preparation and application, the long-term benefits and financial savings make it an investment well worth making. You can make sure that your concrete structures are sturdy and weather-resistant for many years to come by using this method.

Video on the topic

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Anna Vasilieva

Journalist with a technical education, specializing in construction topics. I can explain complex technical topics in simple and accessible language.

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