The price of injection materials depends on the properties of the composition. Hidrozo employees will help you select injection materials for specific tasks and calculate their cost.

We offer injection materials of our own production

The Gidrozo company produces resins, gels, injection foams on polyurethane, acrylate, siloxane and epoxy bases, injection mixtures on mineral based. The line also includes catalysts, removers, plasticizers and other auxiliary products for effective management injection work and modification of the properties of compositions.

The use of injection technologies has a number of advantages:

• high adhesion and optimal pumpability of the compositions allow you to thoroughly seal seams, voids, defects, and cavities;
• high physical and mechanical properties final products ensure the reliability of the solution;
• the use of the injection method for waterproofing and repair is possible not only at the construction stage, but also for the repair of buildings and structures that were previously put into operation;
• you can solve any waterproofing problem - including in the presence of pressure leaks, voids, various types cracks, including during restoration work;
• injection of buried structural elements, for example, a foundation, does not require digging from the outside;
• the materials used are environmentally friendly, their contact with drinking water;
• high dry residue in the composition ensures no shrinkage and high efficiency;
• the durability of the solution allows you to significantly increase the time between repairs.

Application of injection materials for waterproofing and repair

Injection is used for interior and exterior work, such as:

• force closure and sealing of wet and dry cracks;
• eliminating leaks;
• sealing cold and expansion joints, input nodes engineering communications;
• device of capillary cut-off and anti-filtration curtain;
• strengthening and consolidation of soils and rocks.

The materials have positive experience of being used at transport infrastructure facilities (interchanges, bridges, tunnels, subways and other structures), at civil and industrial facilities (underground parking lots, basements, technical structures, tanks, swimming pools), etc.

Injection compounds increase the service life of the structure, effectively protecting it from negative influences. The compositions are resistant to aggressive environments and temperature changes.

You can buy injection materials for a variety of tasks on this website

Buying injection materials for waterproofing from Gidrozo is quite simple. You can place an order in several ways:

1. Fill out the form on the website.
2. Call or write to the main office of Gidrozo, located in Moscow, or to other branches.

Various containers are used for packaging: buckets from 1 to 25 kg; bags 15 kg, 16 kg, 20 kg; canisters from 5 to 20 kg; 1 kg cans.

All presented products comply with the requirements of ISO, SNiP, GOST.

The purpose of waterproofing a building and structure is to maintain the strength of the foundation, and, consequently, the entire structure as a whole, extending its service life and minimizing possible repair costs.

Typically, a protective waterproofing layer is created during the construction process. But it often happens when the owner of a property acquires it in a state where he has to think about updating the waterproofing. What to do in this case?

The most promising option is to expose the foundation and re-create a protective layer.

The method of such work is always chosen individually, based on the characteristics of the building and the reasons for the insulation failure. Applying new waterproofing material to the foundation is not as difficult or expensive as it seems. But manipulations with soil require large time and financial investments. And the subsequent need to improve the territory makes the project even more expensive.

The way out of this situation is the injection waterproofing method. It gained great popularity in countries Western Europe, where they learned how to protect buildings from water and moisture at any time of the year. Moreover, this method allows you to work indoors.

Work technology

Before starting waterproofing work using the injection method, they inspect the object and draw up detailed plan necessary operations. This work should be entrusted to experienced specialists who will correctly identify the problem by determining what substance needs to be treated. underground part structures, and calculate the volume of polymers.

Depending on the density of the concrete and the intended purpose, the type of composition of the injection solution is determined. In this case, injection polymers can be introduced directly into the body of the building structure, as well as into seams and cracks in the foundation. If necessary, the solution is also supplied behind the structure of the structure, thereby creating a protective screen. If you completely waterproof an object, you will need a large amount of solution. It will be more economical to fill only cracks and seams with it. However, the possibility of this must be determined by specialists.

In terms of waterproofing work, there must be a diagram that indicates the number and location of boreholes, each of which has its own number. Boreholes, or small holes, are drilled in a checkerboard pattern in increments of 25-30 cm. Their depth should be approximately 70% of the wall thickness. Through holes are drilled only to create waterproofing of filter surfaces.

To restore the waterproofing of the horizontal layer, holes are made in two rows at the level of the beginning of the wall. Parquets are attached to the resulting holes, through which the injection solution is injected using special equipment capable of creating a pressure of 250 atmospheres. Then all auxiliary devices are removed, and the surface of the wall and foundation is cleaned of excess mortar. Next stage finishing works It is recommended to start by covering the restored area with a special sealant. This will make it possible to level out traces of repairs and improve the water protection of the material surface.

Types of Injectables

Today, a variety of innovative compositions are used to create injection waterproofing, and their list is constantly expanding. But the most popular are polymer solutions.

Depending on their chemical composition, they can have different elasticity, porosity, ability to increase in volume and polymerize. The ability of polymer solutions to fill microcracks and other voids is based on the property of polyurethane to expand several tens of times under the influence of moisture. In addition, such compositions adhere well to the surface of almost all types of materials.

Polyurethane injection solutions are used for:

• eliminating persistent leaks;
• insulation of working seams and damaged butt joints of the structure;
• horizontal waterproofing;
• filling voids in the foundation;
• strengthening the foundation;
• strengthening the load-bearing capacity of the structure.

To repair materials with a finely porous structure, as well as to eliminate cracks and protect the separating layers of the foundation from water, epoxy and polyurethane resins are used. They are very durable, have good adhesion qualities to concrete, steel and other materials that may be included in the foundation structure. This resin is not used when working with PVC, polyesterol and polyethylene. The main purpose of epoxy resins is to strengthen small damaged areas of the waterproofing of an object.

In some cases, instead of polymers, acrylate gels can be used, which can contain up to five different components. Acrylates do not have a high degree of viscosity. However, they perfectly penetrate the structure of the material, filling the smallest pores and voids. Moreover, such gels are elastic and fit perfectly onto building structures. The introduced acrylate is in a gel state. It increases in volume and hardens only upon contact with water. This injectable composition is suitable for eliminating active leaks, as well as for restoring waterproofing and creating new barriers.

Organosilicon compounds are used to create waterproofing and strengthen old foundations. They consist of silicone and silicon. Such compounds have high adhesion and fill micropores, cracks and other voids well. You can also strengthen the foundation and soil using microcements.

Difficulty of choice

Before starting waterproofing work, the question always arises of what composition and solution is best suited for injection. Only a specialist can answer it correctly. But, general principles the choices are:

1. To create waterproofing of masonry on large areas solutions with low viscosity and a long curing period are suitable. At the same time, the composition penetrates better into the brickwork and fills the pores of the building material.
2. It is recommended to treat cold working seams of the foundation and walls with acrylic gels.
3. Communication entries are protected with polymer resins.

In addition to creating an insulating film, cracks can be eliminated using injection waterproofing. This increases the strength of the object and bearing capacity building structures.

Depending on the task, injection technology may vary. If a vertical seam or crack is being processed, the solution is applied from bottom to top. Large horizontal cracks are filled from the center to the edges. If the work is done epoxy resin, then before starting work, the defective area is treated with polyurethane.

Non-shrinking compounds are used to seal cold joints. They allow more targeted use of the pressure of injection solutions inside the structure, displacing moisture from it and filling cracks in the edge zones.

And although the cost of injection waterproofing is quite high, the effectiveness of such work is great. But, in order to accurately indicate the consumption of materials and financial costs for protecting the object from water and moisture, this work must be carried out by experienced specialists who will identify the problem and find ways to solve it.

Today, the concept of “injection waterproofing” can be understood as a very wide area of ​​waterproofing work.

Moreover, there is often a substitution of concepts or simple confusion.

The purpose of this article is not the ultimate truth, but our idea of ​​this fairly popular concept at present, which we want to convey to you, based on concrete example: availability of materials for injection waterproofing in the line of materials of the PENETRON waterproofing system.

First, let’s understand the terms a little so that we ourselves do not allow substitution of concepts or confusion.

Waterproofing - a sequence of measures using special building materials, the purpose of which is to prevent contact with a specific building structure or to prevent water from penetrating into the building structure.

Types of waterproofing

All of the above types of waterproofing share the following disadvantages:

• they all form a waterproof coating on the concrete surface
• with the exception of plaster waterproofing they all require a device protective coating from mechanical damage
• in the event of mechanical damage or destruction of the integrity of the waterproofing coating created with their help, the concrete structure becomes defenseless to the effects of water
• to prevent contact or penetration of water into a concrete structure, all of the above types of waterproofing can only be used during the construction phase, since they are applied only with outside protected structure, forming a waterproofing coating on the concrete structure from the ground (for underground structures) or water (for structures that come into contact with water during operation)
• When water penetrates into the premises, restoring waterproofing of the above types requires complete excavation of the structure, creation of a new waterproofing coating and backfilling of the pit.

Penetrating and injection waterproofing: buy and ensure waterproofing of concrete

The following types of waterproofing are fundamentally different from those listed above, since they change the internal structure of a concrete structure in different ways, turning the concrete itself into a waterproof environment.

These types of waterproofing can be divided into the following categories:

1. Penetrating waterproofing:

The principle of operation of this waterproofing is due to the special chemical composition waterproofing material with penetrating action and a method of “delivery” of these special chemical components inside the concrete mass with a subsequent change in the structural composition, giving the structure the property of water resistance.

The second name for this type of waterproofing is penetrating, which is no coincidence.

So this type of waterproofing began to be called by the name of the company that 50 years ago was the first to produce waterproofing materials penetrating action - PENETRON.

And when these materials began to gain more and more popularity every year, these materials, and then the type of waterproofing, began to be called “penetrating”.

2. Pressure or injection waterproofing, the price of which, by the way, is quite low:

To perform waterproofing work using injection waterproofing technology, special equipment is required, since, unlike penetrating waterproofing (when the penetrating waterproofing material “PENETRON” penetrates into the concrete as a result of physical processes, and waterproofness is imparted to the concrete over the entire thickness of the concrete as a result of chemical processes)
injection materials are injected into the concrete under pressure by special pumps.

In addition, injection materials, unlike penetrating materials, are not chemically similar to concrete; they are usually polymer compositions, which, due to their initial viscous-flow state, are called injection resins.

Since injection resins have a much higher viscosity than water, they cannot fill the capillaries of concrete, so concrete injections, as a rule, are work to waterproof cracks formed during operation.
Injection resin, for example, when penetrating cracks in the floor or walls, turns into a solid state, reliably waterproofing static cracks, that is, not subject to deformation.

But, often, cracks in concrete form in those places where periodic deformations of concrete occur.

Cracks in such places are characterized by a change in the width of their opening over time.

They are called dynamic, and for their waterproofing an injection resin is used, which, after entering the floor or wall, forms an elastic filling of the crack cavity, which allows waterproofing to be provided when the width of the crack opening changes.

If water flows from a crack, the cavity of which must be filled with injection material, then before using injection waterproofing it is necessary to stop this leak.

To do this, an injection is carried out into the concrete in such a way as to get into the crack as close as possible to the outside of the concrete structure.

In this case, an injection resin is used, which is hydroactive, i.e. which, upon contact with water, begins to increase very quickly in volume, filling the crack, thereby preventing the flow of water. After the water stops flowing, the cavity is filled with injection resin, which creates a long-lasting waterproofing of the cavity.

Injection resins included in the line of materials of the PENETRON waterproofing system are efficient materials to create waterproofing of cracks that have arisen during operation concrete structures by injection (pumping) into concrete. You can buy injection waterproofing from the Penetron-Moscow company.

Materials for creating injection waterproofing
Name of material	Description	Peculiarities		Cost, rub. (in view of VAT)
PENESPLITSIL	Two-component polyurethane resin for injection into dry and wet cracks, including moving ones. Polymerization time - 40 min. Purpose: sealing static and moving cracks, cutting off capillary rise of moisture.	Low viscosity, which makes it possible to seal cracks with an opening width of 0.15 mm; High adhesion to concrete, metal and plastic; Resin reaction products are resistant to acids, alkalis and microorganisms.	Metal canisters 19.2 kg + 22.8 kg	46 872,00
PENEPURF	A two-component hydroactive polyurethane resin that foams upon contact with water to form a waterproof foam. Purpose: stopping pressure leaks through cracks. There are three types of material, differing in polymerization time: 1. PenePurFom N - 5 min. 2. PenePurFom NR - 3 min.	Low viscosity, due to which the material penetrates cracks with an opening width of 0.15 mm; Possibility of sealing cracks and seams through which water is abundantly filtered; Possibility of choice required type material, depending on the intensity of water filtration.	Metal canisters 20 kg + 24 kg	36 212,00
	3. PenePurFom R - 1.5 min.			36 617,00
PENEPURFOM 65	One-component, hydroactive, injection material based on polyurethane resins. Foams on contact with water to form a waterproof rigid foam. Purpose: stopping pressure leaks through static cracks in concrete, brick and stone structures.	Possibility of adjusting the polymerization time using a catalyst; Possibility of sealing cracks and seams through which water is abundantly filtered; The ability to effectively fill voids and compact soil behind the structure, thanks to low viscosity and a large increase in resin volume (65 times).	Metal canister	19 680,00

Name of material	Description	Peculiarities		Cost, rub. (in view of VAT)
PENEPURFOM 1K	One-component, hydroactive, injection material based on polyurethane resins. On contact with water it foams, forming a waterproof elastic foam. Purpose: stopping pressure leaks through static and moving cracks; filling the cavity of expansion joints.	Possibility of adjusting the polymerization time using a catalyst; Possibility of sealing cracks and seams through which water is abundantly filtered; The ability to effectively seal moving cracks due to the elasticity of the material.	Metal canister	17 820,00
Catalysts for one-component resins
	Catalyst PenePurFom 65 The catalyst is an accelerator that significantly reduces the polymerization time of polyurethane resin "PenePurFom 65"		Metal can 1 kg	2 070,00
	Catalyst PenePurFom 1K The catalyst is an accelerator that significantly reduces the polymerization time of PenePurFom 1K polyurethane resin.		Metal can 1 kg	2 340,00
Equipment
	Manual piston pump EK-100M Designed for injection of polyurethane resins.			32 000,00
	Electrically driven piston pump EK-200 Designed for injection of polyurethane one- or two-component resins.			90 000,00
	Injector (packer) For piston pumps EK-100 and EK-200.

Often we all encounter cases when from some place building structure there is a water leak. AND in the usual ways it is not possible to fix this problem. However, in modern world There are new technologies that solve such problems quickly, very efficiently and at an affordable price. One of these technologies is injection waterproofing. It has features of use for different buildings and conditions.

Injection waterproofing is an excellent method of protecting a structure from moisture. It even copes with pressure leaks in the building. The operating principle is based on pumping waterproofing materials under high pressure using special pumping equipment.

For long-term operation of the structure, good waterproofing of the foundation is necessary. Therefore, during construction, 20–30% of the estimate of the cost of the building is spent on the foundation. And that is why it is very important that the foundation is built in compliance with all norms and rules. And one of these standards is high-quality foundation waterproofing.

Application

For every building, the foundation is the main foundation. And the lifespan of a building depends on the quality of the foundation. Therefore, at the beginning of construction, waterproofing of the base should be done. It will make the foundation resistant to corrosion and protect from rain and groundwater.

For reliable waterproofing concrete base needs to be monitored. Such supervision is not easy to organize, since it is not very visible behind the backfill and building materials. IN in this case Effective waterproofing is provided by waterproofing materials with penetrating action.

One of the problems during construction is the capillary rise of groundwater. It occurs between the foundation and the wall, and the free space quickly fills with water. Such water is often saturated with salts and acids, and during capillary rise it moistens the structure to a height of 10 m. Good waterproofing of the base of the building will protect against such a disaster.

Horizontal waterproofing for cold rooms can be carried out by injection. Recovery brick walls will happen much faster.

What's the point?

The essence of injection waterproofing is to create a membrane between a layer of moisture-saturated soil and the enclosing structure (wall or foundation). That is, a hydrophobic gel is injected, which hardens, clogging the pores in the wall and in the soil.

In addition, such a membrane, depending on the type of injection substance, has different levels rigidity. The gel plays the role of not only waterproofing, but also a reinforcing frame. And the technique itself functions no worse than the well-equipped external waterproofing system.

This technology is used during planned repairs of tunnels, underground parking and other objects.

Advantages

Injection waterproofing has special advantages over its analogues.

• Saves time. Injection can be carried out both after completion and during construction.
• Saves finances. High-quality waterproofing lasts a very long time and does not require frequent repairs.
• Solves most leakage problems.
• The injected material is able to penetrate even the smallest pores and cavities.
• Possesses high quality waterproofing membrane.
• A high-quality seamless waterproofing coating is created.
• This waterproofing is safe for drinking water.
• The hardening time with a certain composition reaches a couple of seconds.

However, due to the difficult work of injection waterproofing, which thickens very quickly, specialists are needed for it. Therefore, this method is not found in the list of services of every construction company.

Flaws

This method has the following disadvantages:

• Expensive materials and equipment.
• Specialists are needed for quality work.

However, these disadvantages are quickly compensated by the excellent quality and speed of work.

Materials

The following compositions are usually used as an injection base:

• Polyurethane polymer gels. Quite cheap and have high efficiency. When interacting with water, the polymer gel increases its volume by almost 20 times. This material provides high-quality clogging of cracks, leaving no space for moisture.
• Gels based acrylic acid , are called acrylate. Acrylate gels have almost the same density as water. This gel cures quickly in soil, concrete or brick, creating a very strong bond. Also, depending on the temperature and ratio of substances in the gel, the hardening time can be adjusted. Mixing with the soil, the gel becomes stronger, which protects it from washing out and secures it in cracks and crevices.
• Epoxy options. This composition hardens upon contact with air, and moisture only interferes with its hardening. It is used in dry construction.
• Cement-sand(microcement). This composition is able to completely fill all internal spaces, thereby improving the internal structure and creating water protection.

The most commonly used injections are polymer and acrylate gels. They harden upon contact with water and have good penetrating ability.

Supporting Features

By introducing additional components into the gel, the following properties are achieved:

• fungus removal;
• mold control;
• improving chemical protection of buildings;
• reducing the risk of reinforcement corrosion.

Process

Injection waterproofing technology occurs in the following steps:

• First, we study the surface, where and in what places we want to inject.
• Then we drill small (20 mm in diameter) through holes along the wall in increments of 0.25–0.5 m.
• Next, holes of the same diameter are drilled along the crack.
• At the next step, metal or polymer tubes (fittings) are inserted into the holes, and valves are attached to the other end.
• A tank with an injection solution is connected to the ends of the valves. Due to the increase in pressure in the tank, the solution is transported through the tube behind the wall.
• When the solution hardens, the tubes are removed from the wall and the outer surface is treated with moisture-resistant plaster.

MOSCOW PROSPECTIVE DEVELOPMENT COMPLEX

DEPARTMENT OF OFF-BUDGETARY PLANNING OF THE CITY

MASTER PLAN DEVELOPMENT DEPARTMENT

NIIMOSTROY

DEPARTMENTAL
BUILDING STANDARDS

INSTRUCTIONS
BY DEVICE TECHNOLOGY
WATERPROOFING AND STRENGTHENING
WALLS, FOUNDATIONS, FOUNDATIONS
POLYMER HYDROPHOBIZING COMPOSITIONS

VSN 64-97

MOSCOW 1997

“Instructions for the technology of waterproofing and strengthening walls, foundations, and foundations with polymer water-repellent compounds” was developed by NIIMosstroy (PhD B.V. Lyapidevsky, Ph.D. A.F. Lander, senior researcher T. A. Kleiman).

When using these instructions, you should take into account the approved changes made to the standards and technical specifications for materials used for waterproofing and strengthening walls, foundations, and foundations with polymer water-repellent compounds.

Complex for the future development of Moscow	Departmental building codes	VSN 64-97
	Instructions for the technology of waterproofing and strengthening walls, foundations, foundations with polymer water-repellent compounds	Introduced for the first time
Office of Extra-Budgetary City Development Planning
General Plan Development Department

1. GENERAL PROVISIONS

1.2. When carrying out the work specified in ., it is necessary to comply with the requirements of SNiP 3.04.01-87 "Insulating and finishing coatings" and these instructions.

1.3. Polymer compositions proposed for waterproofing and strengthening structures made of brick, stone, and concrete are compositions based on water-repellent silicon compounds.

1.4. Compositions intended for waterproofing and strengthening the structure of walls and foundations must be tested for compliance with the technical requirements specified in these instructions.

1.5. Polymer compositions are delivered to construction sites ready for use.

1.6. Before starting work on waterproofing and strengthening structures, preparatory work must be completed.

1.7. When carrying out waterproofing work with polymer and polymer-cement compositions, it is necessary to comply with the requirements of SNiP III-4-80 * “Safety in construction” and these instructions.

Rice. 1.1. Diagram of the water absorption mechanism

Water absorption in liquid form:

1 - rainwater; 2 - filtration water; 3 - rising moisture;

Water absorption in the form of water vapor:

4 - capillary condensation; 5 - hygroscopic water absorption; 6 - condensation

Work is permitted under the following conditions:

The outside air temperature should not be lower than +5°C;

On the outside, the walls must be frostbitten to at least half their thickness, which is achieved by keeping them at a stable 24-hour temperature of +8°C for 5 days in a row.

It is prohibited to perform cover waterproofing work:

In hot weather at an air temperature in the shade of +27°C and with direct exposure to sunlight;

During rain and immediately after rain, on a surface that has not absorbed water;

In wind speeds exceeding 10 m/sec.

Waterproofing of internal surfaces may be carried out indoors at a temperature not lower than 10°C and a relative air humidity of not more than 80%.

2. TECHNOLOGY FOR PREPARING SURFACES FOR WORK ON HYDRAULIC PROTECTION AND STRENGTHENING STRUCTURES

2.1. Before starting work on waterproofing and strengthening the structures of parts of buildings and structures using injection and coating methods, it is necessary:

Carefully inspect the surface of the insulated structures;

Clear all defective areas (cracks, potholes, areas not connected with mortar);

The surface to be treated must be clean, strong, free from residual fuel oil, tar, cement mortar, oil and grease stains, rubber rubs, streaks, etc.;

If possible, the surface should be treated with scrapers or sandblasting;

Surfaces with absorbent properties must be evenly moistened with plenty of water, avoiding the formation of puddles;

Damaged areas (chips, holes, cracks, etc.) are rubbed with a polymer-cement solution from a dry mixture of a grade of at least 75, sealed with Asoplast-MC astringent emulsion. (Asoplast-MC - a synthetic emulsion based on butodiene and styrene - gives the frozen solution increased adhesion, increases elasticity and resistance to soaking, reduces water permeability, and increases chemical resistance).

2.2. In the case of immediate waterproofing of wet surface areas, places of water leakage and seepage in basements, mines, etc. sealing cement FIX-10s is used.

2.3. If it is necessary to install horizontal waterproofing in the external walls of a building, it is necessary to provide access for installing injectors and injection along the entire perimeter of the building (outside and inside).

2.4. Rusts and cracks in walls and ceilings must be filled with a polymer-cement composition using a dry mixture with Asoplast-MC and subsequent leveling.

The junctions of dissimilar materials must be glued with gauze on a 50% polyvinyl acetate plasticized (containing dibutyl phthalate GOST 18992-80) dispersion diluted with water 2:1 or Uniflex-B glue.

The gauze must be carefully smoothed, have no folds, swellings, and after the adhesive layer has dried, it must not peel off from the surface.

3. TECHNICAL REQUIREMENTS FOR INJECTION WATERPROOFING MATERIALS

3.1. Application area:

To stop capillary absorption by creating a horizontal barrier during renovation work on old buildings;

To eliminate voids and shells;

To eliminate leaks in concrete if there are various types of fastenings (anchors, consoles, protruding supports, sleeves, etc.);

For sealing sinuses in underground structures filled with crushed stone, pieces of concrete, construction waste or lumpy soil;

For pumping the mixture during the construction of tunnels in fractured rocky soils behind the tunnel shell to fill the free space;

In case of poor quality grouting of joints of prefabricated structures;

In those structures where the concrete has not been sufficiently compacted and there are separate gravel layers and loose working seams;

In case of violations of brick and rubble masonry, which occur due to uneven settlement of the foundation, in the absence of proper dressing of seams and poor-quality filling;

To fill voids to prevent metal corrosion, eliminate water seepage;

In order to make the structure solid and increase its strength;

To fill pores with a porous concrete structure;

In the presence of deep cracks extending throughout the entire thickness of the structure.

3.2. Requirements for injection formulations.

The composition must meet the following requirements:

Have a waterproofing property to stop capillary suction;

Be resistant to water-soluble salts;

Be resistant to aggressive substances;

Have good adhesion to masonry or concrete;

The applied pressure should not violate the strength of the structure or cause any deformation.

3.3. Compositions used for injection waterproofing (polymer).

3.3.1. Injection composition GUI-412e:

It is a hydrophobizing and strengthening solution consisting of a mixture of silicic acid esters with diluted solvents and hydrophobic - based on GKZh-11e with solvent and dilution - two-component for injection hydrophobization;

Designed for conservation of building materials, structural strengthening and volumetric hydrophobization of inorganic porous materials, as well as for external and internal work (injection waterproofing);

Prepared at the workplace in accordance with TU 2312-008-04000633-96;

Low toxicity and fire hazard before impregnation;

Storage: in tightly closed glass containers in accordance with GOST 9980.1-86* (shelf life 1 year);

Transportation at a temperature not exceeding +30°C;

Consumption for injection treatment per 1 hole with 2-fold filling is 1 liter.

3.3.2. Injection composition "Aquafin-F" from Schomburg:

Ready-to-use solution for silicatization based on hydrophobizing silicon compounds. When interacting with lime, it forms insoluble chemical compounds that stop capillary suction;

Designed to stop capillary absorption during renovation work on old buildings;

Hydrophobizes and narrows or blocks the capillary structure in concrete and masonry;

Does not cause corrosion of reinforcing steel;

Technical data: base - silicon compounds, liquid; color - transparent; specific gravity- 1.2 g/cm 3 ;

Storage: in a warm room in closed containers. Shelf life 1 year;

The consumption is calculated based on the absorbency of the wall, according to the processing data of the test hole.

For injection, it is necessary to make holes with a length of at least 2/3 of the wall thickness;

When processing walls more than 1 m thick, as well as in the corners of buildings, drill holes should be placed on both sides.

3.3.3. Injection composition "Akvafin-SMK":

Silicone microemulsion concentrate prepared on the basis of silanes and oligomeric siloxanes;

It is used for the installation of horizontal waterproofing - a barrier to rising capillary humidity;

Technical data: base - silane/siloxane; color - transparent; specific gravity - 0.95 g/cm3. Shelf life: 9 months, store in a warm place;

Consumption: 1.5 - 2 kg of concentrate per 1 m 2 area cross section walls;

Contains no solvents, odorless, non-flammable, harmless to health.

3.4. Compositions used for injection insulation (polymer cement).

3.4.1. Quick-setting compacting mixture (BUS):

Aluminate-silicate non-toxic binder;

Properties:

self-sealing;

intensive expansion;

waterproof when caulked;

ease of clumping and good caulking.

Technical data: base - aluminous expanding cement, Portland cement, aluminous cement, chrysotile asbestos; color - gray;

The water-cement ratio of cement paste is 0.28 - 0.32;

Waterproof - should be waterproof after 24 hours;

2) injections without excess pressure for solutions based on silicon compounds.

Injection holes should be drilled at intervals of no more than 15 cm with a diameter of 30 mm and at an angle of 45° to 30°. The length of the hole should be 5 - 8 cm less than the thickness of the wall.

Masonry with large cavities, hollow bricks, cracks or open seams of more than 5 mm should be filled with BUS or Asocret-BM materials before performing injection work. (.).

Before impregnation, drill cuttings should be removed from the boreholes.

When working with Aquafin-F material, boreholes should be filled with a 0.1% solution of lime water before impregnation. The impregnation time is at least 24 hours.

Rice. 3.1. Drilling holes in masonry structures

Rice. 3.2. Basement waterproofing diagram

Rice. 3.3. Scheme of basement waterproofing on site

Rice. 3.4. Basement waterproofing diagram

Rice. 3.5. Scheme of sealing individual leaky injection sites

Then the holes are filled with BUS or Asocret-BM material.

3.5.2. Technology for strengthening underground and above-ground parts of buildings and structures with polymer-cement compositions using the injection method:

The process of injecting a polymer cement mixture consists of three operations:

1) preparation of wells in the body of the structure for installing injection tubes in them.

2) installation and sealing of tubes.

3) injection of the mixture.

Preparation consists of clearing and expanding the area where it is planned to install tubes with a diameter of 19 - 25 mm.

This removes weak mortar and uncemented gravel.

The number of wells to be prepared is set working scheme depending on the size and distribution of the defect.

The depth of the well is drilled so that the tube enters it up to 50 - 70 mm at a certain angle, ensuring good flow of the solution into the defective area.

Cleaning of shells and expansion of cracks is carried out hand tools(scarpel, bolt, etc.). The prepared area is washed ().

When installing the tubes, you must ensure that they exactly fall on a crack or sink that goes deep into the structure ().

Injection tubes are sealed with a cement mortar of composition 1:3 with a cone draft of 2...3 cm. If the hole or crack is very large compared to the tube, then an impregnated liquid glass tow, which is tightly caulked.

The end of the tube should protrude 50...100 mm from the body of the structure to attach the hose to it.

The embedded tubes are kept for some time so that the solution gains the necessary strength ().

Cement mixture prepared from cement grade 400 with a composition of 1:1.5 (1 part cement and 1.5 parts water by volume). The mixture is prepared at the workplace in metal barrels with a capacity of 40 - 60 l, mix thoroughly for 2 - 3 minutes, filter through a metal mesh, and then enter the pump. BUS or Asocret is diluted with water.

Rice. 3.6. Installing injection tubes on the crack and pumping the solution with a pump

The injection is usually carried out by 2 people.

Through installed tubes or directly into the hole under a pressure of 0.2 - 2.0 MPa, injection compositions are pumped “to capacity”.

Maintaining maximum pressure in this state for 5 - 10 minutes.

After partial curing of the injection composition, the tubes are removed from the structure or cut flush with the surface of the structure, and the holes are sealed with a polymer-cement solution.

Depending on the design, nature of destruction, strength of the material and the depth of tube penetration, the appropriate pressure is assigned for each individual case. As the well becomes saturated, the pressure gradually increases to the maximum limit for a given design and material.

The applied pressure should not violate the strength of the structure or cause any deformation. During the injection process, there comes a point when the well stops accepting solution, and a rapid rise in pressure indicates that the existing voids in the structure are filled and further injection should be stopped.

Sometimes injection is carried out in several stages with a break of one day. Re-injection is especially useful in underground structures, where there may be voids behind the wall, and the solution escaping through through cracks creates layers and fills the voids between the structure and the ground.

The amount of cement mixture injected into one well depends on the volume of the structure, its location, the nature and size of the defect and the correct installation of the pipes.

A lot of the mixture is wasted when injecting underground structures due to the lack of proper compaction of the soil, the presence of various foreign inclusions in it - construction debris, formwork boards, frozen lumps of soil, etc. In this case, the solution sometimes spreads over considerable distances from the place of cementation ().

At the end of the work, the injection plastic tubes are removed either by cutting them flush with the structure, or by removing them from the concrete body, if no more than 16 - 24 hours have passed since the end of the injection. The remaining holes are filled with a solution.

3.5.3. The technology for strengthening underground and above-ground parts of buildings with polymer compounds using the injection method is performed in the following sequence:

Holes are being drilled Æ 20 - 25 mm along the axis of cracks in defective areas or over the entire area of ​​the structure. Injection technology, pitch, diameter, depth of holes depend on the nature of the damage and are determined by the author of the project at the work site;

When compacting structural materials (brick, stone, concrete, reinforced concrete) with undetected defects, the hole spacing is taken at the rate of 10 - 20 pcs/m2 of surface, and the depth of the holes is 2/3 of the thickness of the structure (;);

When creating horizontal waterproofing in external and interior walls The hole pitch is taken to be no more than 150 mm, the holes are arranged in two, three or more rows in a checkerboard pattern with a height offset of 100 - 150 mm (.; .; .);

Drill cuttings are removed from the holes using any method;

Metal tubes (fittings 10 - 15 cm long, which are strengthened with cement or polymer-cement mortars) are installed in the holes of the boreholes. For dense concrete (stone), installation of tubes is not necessary; in this case, injection is carried out using injectors;

For sealing cracks and in some cases (usually brickwork) surfaces of structures in order to prevent the leakage of injection compositions from it, as well as leveling the surface of brick or stone structures(in case of a subsequent device painting waterproofing) polymer cement plaster with a thickness of 10 - 20 mm (.) is performed.

Equipment for injection work is being prepared.

Injectable compositions are prepared.

Rice. 3.7. Installation of injection and cover waterproofing

3.5.4. Technological operations and equipment for drilling holes:

The special technology of NIIMosstroy includes the following technological operations:

marking drilling locations.

drilling holes,

installation of plastic tubes in the holes,

embedding the pipes with cement mortar - BUS,

pumping or pouring into the hole special compounds that fill microcracks and pores in the body of the wall and foundations and protect against water penetration;

The most labor-intensive and responsible operation is drilling blind inclined holes of a cylindrical shape with a diameter of 18 - 25 mm and a depth of up to 1 m. The angle of inclination of the holes and the horizontal plane is ~25°, the distance from the floor is ~100 mm. The holes are arranged in a checkerboard pattern, the distance between them horizontally and vertically is up to 150 mm;

The most effective means of making holes is to mechanize this work using various types of hand hammers. Right choice determines the optimal labor intensity and quality of holes;

The mechanical method makes it possible to obtain holes using drilling, drilling, punching, cutting the material of a building structure, or a combination of these methods, for example, rotary impact drilling;

Of all the mechanical methods of drilling holes, the most effective is rotary impact, since the wear of the drilling material during such drilling is approximately average wear by other methods (impact-rotary, rotational);

To make holes with a diameter of 18 - 25 mm, a depth of up to 0.1 m, the most suitable are heavy-duty hand-held electric drilling machines with a drilling diameter of up to 23 mm, such as RN-38 from AEG, GВН 7/45 from BOSCH, VN45E from ELU, equipped twist drills reinforced with hard alloy;

The drills have universal shanks with slots, which allows the use of drills from various foreign companies.

Rice. 3.8. Wall strengthening scheme

3.5.5. Technological operations, equipment and tools for injection and creation of a waterproofing barrier:

drilling and cleaning holes,

initial filling of holes with a polymer-cement composition,

re-drilling and cleaning holes,

injections from working compositions GU-412e and GUI-412e,

re-filling the holes with polymer cement mortar;

The initial filling of the holes with a polymer-cement composition is carried out after they are cleaned of drill cuttings. Filling and cleaning holes from drill cuttings can be done in any available way (washing, blowing, mechanical removal etc.);

The holes are filled through tubes without overpressure hand pump lever type, made specifically for injection cement mortars, previously passed through a 0.63 mm sieve. After filling, a technological pause of at least one day is maintained before further work;

re-drilling of the hardened material and cleaning of the holes is carried out after at least one day to the entire depth of the hole with a drill of the same diameter as during initial drilling. Cleaning is carried out by washing, blowing, mechanical removal, etc.;

Injection of the working composition is carried out after cleaning the holes from drill cuttings under a pressure of 0.1 - 0.2 MPa with the same pump or repeated filling without pressure until complete saturation;

The injection time under pressure is usually 5 - 10 minutes, pressing is considered complete when on the outer surface around the hole into which the injection is made, the working composition protruding on the surface in the form of a wet spot of a round shape becomes noticeable. If it is impossible to determine this, then a special graduated tape is glued to the surface. glass tube and is filled with special compounds, and the saturation of the wall is determined by the consumption of this composition;

Re-filling the holes with polymer-cement material is carried out after injections with the working composition with a technological pause until complete saturation.

3.5.6. Safety precautions during injection work.

When carrying out work on injection strengthening and waterproofing of structures of buildings and structures with compositions based on modified compositions, it is necessary to comply with the rules provided for by Chapter SNiP III-4-80 * “Safety in Construction”; SN 245-71 "Sanitary standards for the design of buildings and structures."

It is necessary to systematically monitor the state of the indoor air and the concentration of harmful substances in work area, without exceeding the maximum permissible concentrations (according to sanitary standards enterprise design). Work indoors can be carried out if there is effective ventilation of the basement.

Before being allowed to work independently, workers must undergo safety and fire safety training.

Those working with polymer materials and compositions must have special clothing and personal protective equipment (cotton gowns, cotton suits and rubber gloves).

In case of contact with the skin, clean the skin area with a swab and rinse with plenty of warm water.

The premises must be provided Fire safety: Fire prevention system and fire protection system are provided.

Persons at least 18 years of age who have undergone special training and received a certificate for the right to work with these tools, as well as those certified in the first group of safety precautions, are allowed to work with pneumatic tools.

If problems occur in the operation of the mechanisms necessary repairs It is allowed to carry out only after they are stopped, de-energized and the supply of compressed air is stopped.

The housings of all electrical mechanisms must be reliably grounded.

4. TECHNICAL REQUIREMENTS FOR POLYMER AND POLYMERCEMENT STRENGTHENING AND WATERPROOFING COMPOSITIONS

4.1. Application area.

The compositions are used for waterproofing concrete, masonry, plaster in underground structures (inside and outside), wastewater treatment plants, water tanks, swimming pools, heating plants, mines, dams, locks.

4.2. Requirements for covering materials.

Covering materials should:

have waterproofing properties;

be resistant to the action of water-soluble salts;

be resistant to aggressive substances;

have an antiseptic effect;

have good adhesion to masonry or concrete.

4.3. Materials used for integumentary waterproofing.

For the installation of coating coating waterproofing, materials based on organosilicon compounds are used - GU-412e and based on cement-containing coatings - Aquafin-1K, Aquafin-2K and others.

4.3.1. Polymer composition of GU-412e:

It is a composition consisting of a mixture of silicic acid esters with a solvent without dilution and a hydrophobic composition based on GKZh-PE without dilution - two-component for integumentary waterproofing.

Designed for the conservation of building materials, structural strengthening and for integumentary hydrophobization of inorganic porous materials, used for external and internal work;

Produced in accordance with technological regulations approved in the prescribed manner;

In terms of physical and chemical indicators, it must comply with the requirements and standards specified in the table.

The composition is prepared at the workplace in accordance with TU 2312-009-04000633-96.

Toxic and flammable before application to the surface.

Storage: in tightly closed glass containers in accordance with GOST 9980-1-86*; shelf life 1 year.

The polymer composition is transported at a temperature not exceeding +30°C.

Consumption: for cover treatment per 1 m 2 - 0.5 l.

4.3.2. Waterproofing coating Aquafin-1K from Schomburg:

Supplied in powder form and prepared in a clean container with required quantity clean water;

By stirring, it is brought to a consistency suitable for working with brushes, brushes or sprayers and applied to the prepared surface;

Does not contain substances that have a destructive effect on reinforcement and concrete.

After hardening, it forms a durable, hard coating.

If cracks are possible on the surface, then such surfaces must be treated with Aquafin-2K insulating agents.

4.3.3. Elastic cover waterproofing Aquafin-2K:

An elastic waterproofing coating consisting of three parts by weight of Aquafina-1K and one part by weight of Uniflex-B (liquid elasticizer);

The hardened Aquafin-2K coating resists the negative pressure of ground and standing water and is elastic enough to bridge hairline cracks;

It is also used for waterproofing surfaces covered with ceramic tiles(swimming pools, water storage tanks, etc.) and for terraces, balconies, roofing and during the restoration of old buildings;

In cold rainy weather and on heavily moistened surfaces, you should first apply a primer bonding layer of Aquafin-F and immediately Aquafin-1K.

Examples of waterproofing basements, foundations, underground garages, balconies, under tiles, etc. are given on ; ; ;