Polymer waterproofing NOVACOL. Modern waterproofing materials in individual construction: from the basics to the specifics Properties of bitumen-polymer waterproofing

Not a single construction of a residential building or institution, not a single interior design is complete without the use of waterproofing. The wide range of waterproofing compounds offered will allow you to easily choose what you need. One of the widely used compositions is polymer waterproofing.

Peculiarities

Polymer waterproofing mostly consists of a bitumen emulsion, which includes latex particles. The choice of this waterproofing solution on the shelves of construction stores is huge. Composition may vary. The contents of the composition are directly influenced by the manufacturer and purpose of the solution.

Do not forget that a certain air temperature can affect insulating compounds. This provokes polymerization. As a result, a strong and viscous membrane is formed. Its characteristics satisfy all requirements in the process construction work.

Advantages and disadvantages

The use of a polymer base as insulation has many advantages. By correctly selecting the waterproofing composition and the specifics of its application, you will receive a surface with moisture-repellent properties.

In addition, there are a number positive aspects that are worth considering in more detail:

• Today, up to 400% elasticity can be achieved from a polymer base.
• The service life of the resulting waterproofing surface can range from 25 to 50 years.
• Guaranteeing the possible ingress of water eliminates the formation of monolithic coatings in which there are no joints.
• This material makes it possible to use it for any type of structure, including a complex or non-standard configuration, and even in the presence of relief.
• Polymer waterproofing is one of the most durable compounds, which is unshakable to any kind of mechanical, chemical, ultraviolet and temperature (from -60 to +110 degrees) influences.

• High wear resistance of the composition. The polymer base is characterized by the creation of a layer that subsequently does not become thinner, while remaining a reliable and uniform coating, regardless of the conditions and period of operation.
• Economical consumption of material is achieved by the insignificant thickness of the coating of the polymer composition. This is quite enough to create durable waterproofing.
• Creates adhesion to a variety of materials such as concrete, metal or wood, as well as many different types of finishes.
• This waterproofing composition is easy to apply. In this case, it is possible to choose necessary technology application depending on the presence or absence of certain skills and knowledge.
• The time required for the waterproofing composition to harden is minimal, which has a beneficial effect on the overall progress of construction work.
• The absence of toxic fumes and toxic substances in the composition guarantees the safety and harmlessness of the polymer base.

• The insulating coating is highly repairable. In other words, if any defect occurs on the surface of the polymer composition, it is quite easy to restore it. To do this, you will need to apply an additional layer to the existing one around the entire perimeter or in the required area.
• The polymer composition has vapor permeability, which is one of the fundamental qualities in order to create a comfortable microclimate and protect certain building materials from the adverse effects of water.
• A huge range of color shades of the polymer composition will allow you to use this composition as a finishing decorative material.

Like any product, a polymer waterproofing composition has disadvantages, of which its high cost can be particularly highlighted. The composition is much more expensive than its analogues, such as roofing felt and bitumen. But it is worth noting that the quality of the resulting coating fully justifies the high cost.

Recognizing the advantages and benefits of this option will allow reducing financial costs for additional renovation work and replacement of lower quality waterproofing coating.

Types and selection rules

A wide range of waterproofing polymer bases can confuse consumers, and therefore it is recommended to familiarize yourself in advance with the variety of insulating compositions offered by manufacturers.

There are several criteria to help you choose required material, meeting all your requirements and wishes:

• Density. The consistency of waterproofing, which is based on a polymer solution, is usually divided into liquid and semi-liquid composition. It is worth noting that there is an alternative in the roll membrane format, which is not inferior to liquid bases, but it is in little demand among consumers.
• Function. Today, the manufacturer is developing a huge range of models for its branded line. Each product is necessarily produced with recommendations for application and an indication of the specific structural element of the structure for which it is intended (roof, floor surface, foundation or metal structures).
• Components included. The elements used and their combination divide the polymer waterproofing composition into several types. The most popular today are cement-polymer and bitumen-polymer compositions.

• Application technology. The application technology is influenced by several aspects, including the availability of experience with waterproofing work, the available time frame for completing the work, as well as the presence or absence of the necessary tools. In this connection, it is customary to divide it into the following types composition: coating polymer waterproofing, liquid, solution homemade(which is based on epoxy resin). Waterproofing polymer compositions produced for self-cooking, require strict adherence to the recipe, specified by the manufacturer. Also, do not forget that it is necessary to strictly follow the deadlines for working with the polymer composition, otherwise there is a high probability that the composition will harden while still in the preparation container. Such quick-hardening compositions will cost you less if the work is carried out by a person with special skills and knowledge necessary equipment. For self-execution For construction work, it is recommended to purchase a more expensive and ready-made waterproofing composition.

Waterproofing work using a polymer base is not limited to its intended purpose. For example, it is often used for above-ground and underground structures, hydraulic installations, and wet rooms. Elastic polymer-cement two-component waterproofing is most often performed in mixtures. Sprayed waterproofing also has good reviews.

Specifics of application

As when working with other waterproofing compounds, the process of applying polymers is carried out in several stages:

• decide on the type of polymer composition that meets all your wishes and requirements;
• make sure you purchase required amount mixtures;
• prepare the surface for further finishing work;
• treat all necessary structural elements with a polymer composition, following the manufacturer’s recommendations;
• wait until the surface hardens completely.

Before proceeding with the actual waterproofing procedures, it is recommended to choose for yourself optimal technology application. To do this, it is necessary to assess the availability of experience or knowledge, budget, technical equipment and other factors characteristic of construction work.

So, there are two ways to apply polymer waterproofing:

• coloring– to carry out this procedure, it is recommended to purchase a paint brush and roller in advance;
• atomization– this technology will require an airless pumping unit.

The first application option is designed to perform waterproofing work for a spacious room or large structure.

When deciding to carry out the waterproofing process as quickly as possible, spraying technology will suit you. For correct execution process you need to follow a simple algorithm:

1. Prepare the airless pumping unit. Make sure fully equipped equipment.
2. Prepare non-concentrated calcium chloride. If you purchased a ready-made solution, fill the container with it.
3. Connect the container to the airless pump unit.
4. Also connect a container with a polymer composition for waterproofing.
5. Next, spray the mixture onto necessary elements structures or surface.
6. Make sure that when spraying, two containers are working simultaneously, since the compositions must be mixed.
7. Ultimately, you should get an even layer, the thickness of which will be from 2 to 4 millimeters (depending on the design configuration), so try to direct the stream in such a way as to achieve this result.

Budget option waterproofing will be using coating application technology. Using this method, you have the opportunity to perform high quality waterproofing small space or individual structural elements, while the consumption of the polymer composition will be minimal.

Let's take a closer look at the stages of waterproofing work:

1. Acquire and Prepare necessary tools. The choice in favor of a fine-pile paint roller or wide brushes will depend on what type of structure you are processing.
2. Dab the lint of the roller or brush into the waterproofing polymer compound.
3. Paint all necessary areas, trying to cover the surface so that the coating is two to four millimeters thick.
4. Wait until the surface is completely dry.
5. Repeat the procedure by applying another layer.

If it is important for you to obtain uniform and smooth surface, it will help to check the quality of the work done building level. Thanks to it, you will be able to identify all the defects that have arisen.

When using any material and, in particular, a waterproofing composition, it is recommended to prepare the base - the surface - in advance. To do this, you will need to mark areas that are more susceptible to moisture. It is worth noting that waterproofing is applied to the lower area of ​​the wall surface and floor. They should be cleaned in advance of dust, cracked plaster and large irregularities, which are recommended to be smoothed before applying the polymer base.

Notice: Undefined variable: class in /home/srv51957/site/catalog/view/theme/default/template/information/information.tpl on line 21 ">

Polymer waterproofing

Polymer waterproofing

IN Lately Waterproofing materials have become extremely widespread different types. Quite common polymer insulation, presented on the market almost the largest number brands and materials.

The use of polymer is one of the most promising ways to develop construction, since polymer materials provide increased resistance of structures and buildings to aggressive forces environment, as well as restoration of the lost life of the structure.

Today, the most widely used effective waterproofing materials for protection against moisture are: bitumen-polymer, acrylic and polyurethane.

Polymer waterproofing used for all types of structures. Its most effective use is for waterproofing industrial reinforced concrete and sanitary structures, various treatment facilities household, industrial and sewage wastewater, as well as containers for storing harmful liquids and complete chemical protection concrete. In the vast majority of cases, it is used in the form of mastics for coating the external parts of structures and structures.

Polymer compositions are intended mainly for waterproofing various dry surfaces, but there are compositions with special surfactant additives that significantly increase the adhesion of materials to a damp base. They are designed for waterproofing wet concrete surfaces. Most often, polymer compositions are prepared directly on the job site, for which a polymer cocktail of resin, plasticizer and hardener is mixed. Depending on the composition and purpose of the material, the viability period of the prepared solution ranges from several minutes to several hours.

Bitumen-polymer compositions are high-quality materials based on bitumen diluted with polymers and rubbers. These additives have improved the water resistance, durability and deformability of bitumen mastics, and they also regulate the operational and technological properties of bitumen-polymer compositions. Bitumen-polymer compositions are the development of bitumen waterproofing technology, inexpensive, but not very durable. Thanks to the addition of new types of materials, it was possible to obtain relatively inexpensive, but already durable and high-quality waterproofing.

In general, polymer waterproofing is confidently gaining popularity among domestic consumers. The main advantage of materials in this group is their relatively low cost with fairly high quality insulating layer.

The Khimsintez plant produces materials for external and internal seamless polymer waterproofing of concrete and metal structures (soft and hard).

For high-quality waterproofing, modern designers and technologists recommend using cold-curing polyurethane and polyurea mastics, as well as hot and cold-curing sprayed polyurea, as the most innovative and effective materials that provide high performance characteristics and a long service life. Curing of polyurethane mastics occurs as a result of: the mutual reaction of the components, as well as the effect of air moisture on the applied material and is determined by the composition of polyurethane waterproofing compositions. The curing product is a rubber-like (elastic) material with excellent physical and mechanical characteristics. NovaCol polymer materials are intended for effective solution tasks for waterproofing concrete tanks, reservoirs, dams, tunnels, swimming pools, ponds, reservoirs, etc. They are widely used as a waterproofing coating when installing new and repairing old roofs.

The company "PU INDUSTRY" LLC develops and produces the following types of polymer materials for seamless waterproofing:

Polymer waterproofing: cold-curing polyurethane and polyurea mastics “NovaCol” polymerize into a waterproofing membrane that combines characteristics such as: the highest adhesive strength, tensile strength, elasticity and durability, inaccessible to traditional bituminous materials. They are equally effectively used both in new construction and in capital and current repairs buildings and structures.
Polymer waterproofing: polyurea sprayed waterproofing of cold and hot cure “NovaCol” is, depending on the purpose, pure polyurea coating or hybrids of polyurea with polyurethanes and/or epoxy resins). Polymer waterproofing "NovaCol" combines waterproofing and anti-corrosion properties and can be used on horizontal, vertical and ceiling surfaces. Polymer waterproofing quickly cures, forming an elastic coating that is resistant to mechanical stress and aggressive chemical environments. The coatings have a 100% dry residue, resulting in no emission of highly volatile compounds from the applied material. This is certainly important from an environmental point of view and is also their undeniable advantage in addition to their high physical and mechanical qualities in comparison with bituminous materials.

You can buy polymer waterproofing as follows:
Polyurethane mastic NC-1 K/E Polymer waterproofing - a membrane with a thickness of 1.5-5.0 mm. depending on material consumption. Polymer mastic for waterproofing combines mechanical strength and elasticity. The color of the material is light gray. .
Polyurea NC-2 K-3P Polymer waterproofing is a highly reactive system based on two ready-to-use liquid components. It has high insulating and anti-corrosion properties, increased resistance to abrasive loads and protects structures, equipment and units from exposure to aggressive environments. It has high adhesion to metal, concrete, old bitumen, polyurethane foam, polystyrene foam and other materials. Suitable for substrates: concrete, metal and wood.
Polyurea UV-resistant NC-2 K-3PA Polymer waterproofing is a highly reactive aliphatic composition based on two ready-to-use liquid components. It has high insulating and anti-corrosion properties, increased resistance to ultraviolet radiation and abrasive loads and protects structures, equipment and units from exposure to aggressive environments. It has high adhesion to metal, concrete, old bitumen, polyurethane foam, polystyrene foam and other materials. Suitable for substrates: concrete, metal and wood.
Hand applied polyurea NC-2 K-8P The process of obtaining ready-to-use material NC-2K/PR does not require the use of high temperatures and special equipment. Polymer waterproofing is used for operational repair cracks, craters and other defects in the coatings of installation roofs, road surfaces, floors on reinforced concrete, asbestos-cement, wood and polyurethane foam bases that have a complex profile and large slopes. Can also be used for waterproofing building structures. Suitable for substrates: concrete, metal and wood.

Final UV resistant coating:

Two-component polyurethane varnish, UV-resistant NC-2K-60.1 Clear coat for a decorative finish and additional protection for base materials. polymer coatings from wear. The coating is formed into a matte (NC-2K-60.1M) or glossy (NC-2K-60.1) structure as a result of curing a mixture of initial components in the specified proportion. It has high vibration, weather, moisture and UV resistance. Environmentally friendly once approved. It is used in industrial, commercial and civil facilities.

Primer primers:

Universal polyurethane primer NC-030 Dry residue – 30%. A primer with a high degree of penetration into the pores of the material. Used when laying floor and sports surfaces on concrete, anhydrite, metal, wood and other substrates to give them abrasion resistance, waterproofing and chemical resistance. .
Universal polyurethane primer NC-060 Dry residue – 60%. Primer with a high degree of penetration into the pores of the material. It is used when laying flooring and sports coverings on concrete, anhydrite, metal, wood and other substrates to give them abrasion resistance, waterproofing and chemical resistance. Applicable on substrates: concrete, metal, wood, rubber-like.
Polyurethane primer for porous substrates NC-2 K-030P Two-component composition. Used for pre-treatment of concrete, foam concrete, cement screed, plaster, wooden surfaces, wall blocks, bricks and other porous materials in order to isolate pores, increase strength and remove dust from their surfaces and improve the adhesion of finishing polymer coatings to mineral substrates, as well as as a waterproofing mastic for cladding from ceramic tiles and under asphalt concrete road surfaces of engineering structures. .
-050M .
Polyurethane primer for metal NC-030M One-component prepolymer based on diphenylmethane diisocyanate. Cures with air moisture. Has high penetrating ability. Contains active compounds with high adhesion to the treated carbon or of stainless steel, providing activation, hydrophobization and reliable wetting of the surface with a quickly polymerizing coating, as well as chemical binding of traces of moisture both on the surface and in the micropores of the metal, and in the thickness of corrosion products. For use on metal substrates.
Two-component epoxy primer for porous substrates NC-2 K-090EP It is used for pre-treatment of concrete, wooden surfaces and other porous materials in order to isolate pores, increase the strength and remove dust from their surfaces and improve the adhesion of finishing polymer coatings to mineral substrates. The material is suitable for use in conditions high humidity, and also as a waterproofing mastic for ceramic tile cladding and asphalt concrete road surfaces of engineering structures. Used on substrates: concrete, wood.
Polyurethane primer for concrete NC-050B Dry residue – 50%. A composition cured by air moisture that is well absorbed into various porous surfaces and materials. It is used at industrial and civil facilities as protective impregnation concrete and cement floors, as well as to form a thin-layer coating and impart abrasion resistance, waterproofing and chemical resistance. When exposed to increased operational loads (driving on studded tires, exposure to metal objects with sharp edges on the floor), the coating primer is strengthened by sprinkling with quartz sand. Used on concrete bases.

In the recent past, they used to protect building structures from moisture. bituminous materials. They did not provide sufficient reliability and their service life was limited. Now a more effective alternative has appeared - elastic polymer waterproofing. Let's talk about its properties and application features.

What is polymer waterproofing?

The category of polymer waterproofing includes a wide range of materials with a diverse composition, physical and chemical properties. But they all contain high-molecular compounds - polymers, which give them special characteristics. The method of application is also common: most of these compositions are intended for coating insulation. The most common polymer materials are bitumen and cement based.

Advantages of polymer waterproofing

There are many polymer-based formulations, and they all have different positive qualities. But in general, we can highlight the following advantages of using this type of insulation.

• High degree of moisture protection. For example, in the case of cement mixtures, the addition of polymer components helps solve the problem of pores through which moisture can seep. Polymer waterproofing forms a continuous waterproof layer, while the base retains the ability to pass air.
• Good adhesion to the surface being treated. For each type of building materials you can find the appropriate composition. For example, waterproofing brickwork It is best done using polymer-cement mixtures, and bitumen-polymer mastics are also suitable for concrete. Unlike roll coverings, the water-repellent layer obtained using these materials is inseparable from the surface.
• Resistant to any weather factors (temperature changes, ultraviolet radiation, precipitation), water pressure, and aggressive chemicals. This allows the use of polymer insulation for both internal and external work, including for the protection of buried structures.
• Elasticity. For some types of materials it reaches 400%. Thanks to this, polymer-based waterproofing is strong in tension and bending, and can withstand deformation loads well (including during soil movements and thermal expansion of structures).
• Polymer waterproofing fits well on any surface
• Flexibility. Elastic coating compositions can be applied to surfaces with any relief; they are easy to use in hard-to-reach places.
• Fluidity characteristic of many types of polymer waterproofing. The composition, which is almost equal in viscosity to water, fills even invisible pores and microcracks. This ensures absolute waterproofness.
• Long period of operation. While conventional bitumen coatings age, dry out and crack over time, polymer-based materials last an average of 25 years.
• Wear resistance. Even with prolonged use, the waterproof membrane does not lose its qualities, does not wear out or become thin.
• Economical. The material is applied in a thin layer and does not require much consumption.
• Safety, absence of toxic components in the composition.

What types of polymer waterproofing are there?

Materials are classified according to different criteria: by composition, by purpose, by method of use. Below we will discuss the main types of elastic polymer waterproofing.

Polymer-based insulation can have different consistencies.

As a solution consistency

Polymer-based elastic coating compounds are a ready-to-use mixture or require dilution (with water or a special liquid). The result is a solution of varying degrees of viscosity - from liquid to paste.

For appointments

Polymer waterproofing has a wide range of applications, which is due to the variety of materials and their universal characteristics. Manufacturers are striving to expand their product lines by producing mixtures for various purposes. Some of them are used for roofing work, others are used to protect the foundation from groundwater, others - for the floor, etc. Also, depending on the purpose, mastics and sealants are distinguished. The first are intended for large-scale work, the second - for sealing cracks, seams and other areas of local violation of the hydraulic barrier.

In the form of component composition

In terms of composition, polymer waterproofing is represented by two in large groups- materials based on bitumen and cement. The most commonly used additives are polyurethane, acrylic, epoxy resins, rubber, mineral components. With their help, mixtures are given required properties: plasticity, fluidity, frost resistance, ability to quickly harden, etc.

In the form of application methods

The technology for installing elastic polymer waterproofing depends on the consistency of the solution. Viscous compositions are applied with a spatula, semi-liquid and liquid - with a brush or roller, as well as by spraying. Depending on the scale of work, the experience of the master and availability professional equipment manual or mechanized method is used.

It is also important to take into account the peculiarities of preparing the mixture. One-component polymer insulation ready for application, two-component compositions mixed in the proportion recommended by the manufacturer. Polymer cement mixtures are supplied in powder form, which must be diluted with water.

Where is polymer waterproofing used?

Elastic polymer insulation is often used to protect roofs.

Polymer-based waterproofing is used almost everywhere in cases where it is necessary to protect structures from the destructive effects of moisture. The main area of ​​application of materials is construction. They serve to protect the above-ground and underground parts of buildings:

• roofs;
• walls (inside and outside);
• foundations;
• basements and ground floors;
• rooms with high levels of humidity (bathrooms, toilets);
• balconies and loggias.

Also, with the help of elastic polymer waterproofing, garages, parking lots, swimming pools, reservoirs, bridges, roads, and hydraulic structures are protected.

Existing application methods

When choosing an application technique, first of all, the volume of work is taken into account. In private construction and renovation, they usually deal with small areas. To install polymer insulation in this case, you need the simplest tools - a paint brush or roller. The viscous composition is applied with a construction spatula. These works can be performed independently, without the involvement of professional labor.

Liquid insulation is applied by spraying.

In industrial construction, as a rule, a mechanized installation method is used. Liquid mixtures are sprayed airless using a pump unit.

Technology of applying polymer waterproofing

Elastic polymer waterproofing is generally easy to use, but to obtain a high-quality result, you must strictly follow the technology. The process can be divided into several stages.

• Selection of material. In this case, the properties of the treated surface should be taken into account, technical condition structures, operating conditions, factors external environment. Often, professional advice is needed for proper selection.
• Calculation of the required amount of mixture based on data on consumption and insulated area.
• Surface preparation.
• Preparation of the solution, if necessary according to the technology.
• Application of the composition.

When working with some materials, you need to wait until the waterproofing fully develops its properties.

Material selection

When selecting a material, you should focus not only on its characteristics, but also on the manufacturer. The important criterion here is the ratio of price and quality. If the budget is not limited, it is recommended to pay attention to the products of well-known brands that have long established themselves in the market. Russian market. Bitumen-polymer mastics are produced under the brands TechnoNikol, Bitumast, Ecomast. Among the cement mixtures, the products of the brands Ceresit, Osnovit, Lakhta, Mapei are well known. Among epoxy-based materials, it is worth mentioning Masterseal from BASF and the more affordable domestic brand Blokada.

Calculate the solution consumption used

Polymer insulation is applied in a thin layer.

The calculation of the material depends on its consistency. Liquid waterproofing polymer-based coatings are applied in a thin layer, so less solution is required to achieve the desired result. The exact data is indicated by the manufacturer on the packaging, but the average consumption is 1 kg per 1 m2 of surface. This implies that the material is applied in one layer with a thickness of no more than 2 mm.

Preparatory work

Before applying elastic polymer waterproofing, you need to carefully prepare the base: the quality of adhesion of the material to the surface depends on this. The work is carried out in stages:

• the base is cleaned of debris and dust;
• remove irregularities, protrusions, sagging concrete, smooth out sharp corners;
• if necessary, level the surface cement mortar;
• remove dust again;
• apply a primer or primer.

Spraying waterproofing

An airless spraying unit is used to apply insulation.

Elastic polymer waterproofing Apply using an airless spray system. Contact with air is unacceptable, since this will cause the mixture to harden prematurely. Although it is possible to rent a pump, it is best to leave the spraying job to those who know how to handle it. Moreover, some materials are demanding when choosing equipment, and not every installation is suitable for their application.

Before spraying the polymer waterproofing is reinforced weak spots surfaces. These are primarily corners, joints and junctions of structures. Geotextiles are used for reinforcement.

Two-component polymer waterproofing is mixed during the application process. Containers with compounds are connected to the pumping unit. When spraying, make sure that the contents of both tanks are used evenly.

The polymer base used in coating waterproofing

Viscous polymer materials are not suitable for spraying; they are applied in another way. Such elastic waterproofing is called coating. Its installation is carried out manually, without the use of special equipment.

When using dry cement powder, the solution is prepared immediately before application in an amount no greater than can be consumed in one hour.

Conclusion

Polymer waterproofing is an effective and durable protection of any surfaces from moisture. Depending on the properties of the base, materials based on cement or bitumen are chosen. Before using the composition, carefully read the instructions.

Cement waterproofing provides protection various designs from exposure to moisture. Materials of this group are often used due to many advantages. Proper mixing of components ensures high reliability and increases the service life of the coating. Exist different types cement-based mixtures. When choosing, their composition and properties are taken into account.

Peculiarities

Waterproofing mixtures are used to protect various surfaces from water: floors, walls and ceilings, seams, etc. Cement-based materials have become widespread. This is due to its reasonable price and relatively simple use.

Although cement absorbs some moisture, mixtures containing this component provide high protection against water. At the same time, there are no contradictions in properties, since in the manufacture of cement-based waterproofing, special additives are used that repeatedly improve the characteristics of the material.

For waterproofing surfaces, compositions containing prestressing cement are used. It is distinguished by increased strength and resistance to cracking. Compared to other brands, this cement absorbs moisture minimally. The use of hydrophobic additives and plasticizers helps to increase resistance to water and enhance reliability by increasing the plasticity of the mixture.

Waterproofing is applied in a layer of significant thickness, due to which the structure being treated is better protected. The principle of application is similar to the method of use plaster mixtures. Thanks to the waterproofing layer, condensation does not form, which gradually destroys the structure and cladding. As a result, the fenced surfaces retain their attractiveness longer and also last a long time.

Advantages and disadvantages

Positive traits:

• wide range of applications: foundation protection, fencing of single-story and multi-story buildings, waterproofing of swimming pools and tanks in contact with water, preparation for cladding of bathrooms, balconies, application to structures that are exposed to a significant load of water under pressure, when premises are flooded;
• high degree of protection from moisture, cement-based waterproofing can be used in any conditions, even the most difficult;
• simple principle of application;
• the possibility of application to a moistened surface, which is due to the presence of cement in the composition, the adhesion of which only increases if the humidity of the enclosed surface is first increased;
• providing protection against corrosion;
• no chemical reaction upon contact with aggressive media;
• resistance to low temperatures;
• vapor permeability;
• absence of harmful components.

Such mixtures have few disadvantages. They note the possibility of application only to structures that have already gained strength. In addition, cement-based waterproofing materials provide high degree protection, provided that several layers of material are applied to the fenced structure.

Varieties by composition

When choosing, take into account the type of components and the structure of the mixture. The material is selected taking into account the intended purpose of the enclosed structure and operating conditions. Waterproofing must comply temperature conditions, at which it will be applied and serve in the future. Violation of this condition will lead to the gradual destruction of the protective layer.

Cement-sand waterproofing

The composition is produced in the form of a dry mixture. This is the simplest type of waterproofing in terms of properties, which is due to the use of cement as the main component. The mixture is quite hard during the drying process protective covering should be moisturized frequently - up to 3 times a day for 2 weeks.

For application, it is recommended to use the method of spraying the composition using special equipment. Main purpose cement-sand mixture— protection of the monolithic foundation of objects. If you plan to apply waterproofing yourself, you need to add special additives to increase the density of the composition. Without them, the service life of the waterproofing will be shortened, and the coating will not perform its functions.

The mixture is applied sequentially several times. When the work is completed, it is recommended to protect the enclosed structure from possible damage while it dries.

However, the surface of the waterproofing layer can still be deformed. In this case, moisture evaporates unevenly, which leads to a change in volume with different intensities.

With added latex

This composition ensures the plasticity of the material. Latex increases the resistance of waterproofing to cracking. The material withstands the effects of temperature changes and low values ​​of this parameter much better. As a result, the cement mixture resembles liquid rubber in appearance and properties. After applying the material, an impermeable coating is obtained that reliably protects the enclosed structure from moisture.

You can add latex to the cement mixture yourself, observing the proportions. However, it is much easier to use a ready-made mixture.

Mandatory conditions when working with such material:

• using the shotcrete or spraying method on a surface that has previously been carefully prepared;
• the mixture should be hot.

As a result we get seamless coating, which does not allow moisture to pass through, does not crack, is resistant to mechanical stress and lasts a long time, and also withstands high temperatures.

With liquid glass

This component is added to the cement mixture, which improves the properties of the rigid cement-sand mortar. Most often, the material is used to protect foundations, basement floors, and to form fire-resistant coatings.

Advantages of compositions based on liquid glass:

• protection from high temperatures;
• high adhesion;
• manifestation of antiseptic properties;
• absence of toxic components in the composition.

Different ways to use:

• liquid glass is applied to seams, joints, cracks, this option is used as an auxiliary measure; after applying waterproofing of this type, roll material is also used;
• Liquid glass is used as the main component of a cement mixture intended for pouring a foundation.

Cement-polymer

The composition includes Portland cement, sand, plasticizers. Cement-polymer waterproofing has improved properties. The main advantage of this material is considered to be high resistance to tensile and tearing loads. This is due to the formation of molecular bonds when the polymer components and cement are combined. As a result, the enclosed structure can withstand dynamic loads well and is resistant to cracking.

There are different types of polymer cement mixtures:

• waterproofing glue;
• waterproofing.

There are one- and two-component formulations. Moreover, the second option is more common. It contains acrylic emulsion and microfiber. This material is used when there is a high risk of exposure to deformation loads (cracks of more than 1 mm are formed). In other cases, dry one-component mixtures can be used.

Types of compositions by method of application

The materials differ in structure and method of application. The choice is made taking into account the condition of the enclosed structure. Penetrating compounds are preferable for use on surfaces that are porous. Coating-type cement waterproofing, plaster and elastic coating mixture are applied to the surface. Selected species materials are intended only for repair of objects.

Coating

This is the most common mixture; it is used to protect various surfaces during construction and at the renovation stage: floors, walls, ceilings, balconies, bathrooms, foundations, water tanks. Coating waterproofing allows you to create an impermeable layer on the fenced surface that thoroughly protects from water.

Used for a long period, fills the smallest cracks. This composition can be applied to surfaces made of different materials: drywall, metal, brick, wood, concrete, etc.

Elastic coating

This group includes materials containing plasticizers. These are auxiliary components that are used to increase the elasticity of the cement composition. This type of mixture is recommended to be used to protect surfaces of complex configurations that are prone to the formation of small cobweb-like cracks up to 0.5 mm wide.

The advantages of elastic waterproofing include increased strength. It is permissible to apply it on the surfaces of: swimming pool, terrace, balcony, water tank. It differs from classic coating-type waterproofing in its high price.

Plastering

This version of the material is susceptible to cracking, so it is not recommended to use it under increased dynamic loads. The surface of the enclosed structure should not be deformed, then a significant duration of waterproofing service is ensured. To improve the properties, it is allowed to add auxiliary components, for example, liquid glass. This type of material has the advantage of being able to level curved surfaces and at the same time provide protection from moisture.

Penetrating

Waterproofing of this type can only be used to protect structures made of concrete and reinforced concrete. This is due to the fact that the composition provides effectiveness provided that the enclosed surface is porous. Waterproofing penetrates into the structure of concrete, upon contact with moisture contained in such material, it crystallizes, clogging the pores.

This prevents the risk of moisture penetration. This composition is used when it is not possible to protect the outer surfaces of the structure using external waterproofing.

Repair compounds

They have a high drying speed. This type of material is recommended for filling seams and cracks. It can be used on different surfaces, including when restoring the foundation. The advantages of this mixture include the absence of shrinkage upon drying.

Water plug

The material is used when it is necessary to quickly restore the integrity of concrete pressure structures. Used for repairing objects made of stone, concrete, reinforced concrete. Available in dry form. Upon contact with water, when a deformed area in the thickness of a concrete or stone structure is blocked by the mixture, the cement composition instantly hardens, forming an impenetrable barrier to water. The advantage of the water plug is its high adhesion to the enclosed surface. It is used even if there is a leak.

Application technology

Instructions:

1. If the base is old, it is repaired: removed upper layer, cleaned, leveled using special mixtures.
2. Before applying cement compositions, the surface is moistened.
3. When the excess moisture has evaporated and the enclosed structure is slightly moistened, waterproofing is applied.
4. The work uses a spatula or special equipment to spray the mixture.
5. The material is applied several times. After the first layer is formed, you need to wait 2-3 days, during this period the surface is moistened.
6. For 3 days, until the first layer has dried, apply the next one, and then another. Cement based waterproofing should not be allowed to cover a dry surface.

Manufacturers

To purchase high-quality certified material, consider products from common brands. It should be taken into account that prices vary in Moscow and the regions.

Ceresit CR 65

This is a cement-based rigid waterproofing material. Application area:

• internal and external surfaces;
• structures buried in the soil;
• bath pool and other reservoirs;
• protection of walls, floors and ceilings in rooms with high humidity;
• waterproofing of hydraulic engineering and wastewater treatment facilities;
• protection of various objects from destruction and exposure to low temperatures.

On deformable objects, an elasticizer is added before using the mixture.

Bergauf Hydrostop

Waterproofing belongs to the group of coating-type materials. This is a one-component mixture, applied with a thickness of 1-5 mm. It gains strength after 28 days and is resistant to bending and compression loads. The composition can be used in conditions of high and low temperatures: -50…+70°C.

Cement NC

Tensile cement refers to separate group materials, because it has a high linear expansion rate, does not shrink, and does not deform. This is the most durable substance, and also outperforms Portland cement in terms of moisture resistance. The material contains almost no pores, so it protects well from moisture.