Designed specifically for the installation of walls made of gas silicate building blocks.
Features of adhesives for gas silicate blocks
Gas silicate block adhesives are a type of foam block adhesives that are produced on the basis of cement, sand, modifiers and plasticizers to impart certain characteristics. The main feature of the glue is its thin-layer application, which makes it possible to minimize the "cold bridges" in the masonry as much as possible without losing the adhesion strength.
To minimize the consumption of glue, use high quality building blocks with an even surface without cracks or dents. Manufacturers recommend applying glue with a layer of 1-5 mm and strictly follow the instructions for preparing the solution. This will ensure that there are no breaks in the adhesive layer, frost resistance and thermal insulation properties of the masonry.
If you started construction in the cold season, use winter modifications of adhesives for gas silicate blocks with antifreeze additives.
It is not recommended to use tile glue and ordinary masonry mixtures, which have completely different properties, for laying cellular blocks.
The high moisture resistance of the adhesive provides protection against moisture penetration and prevents the development of mold and mildew.
Buy glue for gas silicate blocks in Moscow
If you are a fan of energy-saving construction technologies and have chosen warm gas silicate blocks, then for the best result you need to use special adhesives for gas silicate blocks. This will minimize the future heat loss of the house and the cost of heating it. V Moscow buy glue for gas silicate blocks you can in our online store with delivery or pickup from the warehouse. We offer prices from the manufacturer, and for wholesale customers - favorable conditions.
For quick installation of slabs and blocks made of aerated concrete, aerated concrete and gas silicate, glue for gas silicate blocks is used. The price of glue for blocks depends on the type, brand, base material and field of application. Adhesive for gas silicate blocks is made on a cement basis and fine-grained sand with various additives.
- plastic;
- weatherproof;
- moisture resistant;
- economical.
- sets quickly.
Before applying the glue for gas silicate blocks, carefully prepare the base - clean it from dirt and degrease it. The dry mortar is mixed with water until a ready-made mortar is obtained, after which it is applied to the surface with a notched trowel. Such glue forms a thin strong seam between the blocks, which significantly improves the durability of the structure.
Construction hypermarket "Master Tybot" sells a wide range of not only adhesives for gas silicate blocks, but also adhesives for aerated concrete blocks. You can buy glue for gas silicate blocks from us at the most affordable price in the city. We deliver goods across Moscow and the Moscow region. You can clarify the cost of the selected products in our online store.
In the construction of buildings made of porous concrete, glue for gas silicate blocks is in demand, which stands out with a lot of competitive advantages compared to classic cement mortar. The product is a universal mixture for the highest quality bonding of aerated and foam concrete slabs, ceramic blocks and brickwork.
The composition of the glue for gas silicate includes the following components:
- a binder base in the form of high-quality Portland cement;
- fine sand;
- polymer additives;
- modifying inclusions.
Polymer components are designed to ensure the plasticity of the mass and improve the adhesive properties of the solution. Modifiers help to retain internal moisture, which prevents seams from cracking.
High adhesion properties are among the key features of adhesives. They also note a low level of thermal conductivity of the product, which is due to the absence of voids in the seams.
Which adhesive is best for silicate: selection criteria
When choosing a binding material for laying porous blocks, it is recommended to be guided by several criteria:
- reputation of the manufacturer. Renowned suppliers of construction resources value their own reputation and carefully control the quality of the materials produced. If you are confused by the high cost of a product of a well-known brand, remember the proverb "a miser pays twice." To buy branded products at competitive prices, you should use the services of branded salons and participate in company promotions;
- storage conditions and packaging. The dry adhesive concentrate is stored in a dry ventilated room. Factors such as high humidity in the environment or damage to the packaging indicate poor product quality. You should not buy a mixture for laying gas silicate by weight, as this is fraught with low quality material;
- it is worth giving preference to the products of the manufacturer, which makes both blocks of porous concrete and glue for masonry;
- before buying a mixture for laying gas silicate, it is necessary to calculate the consumption of material.
The main parameter when calculating the consumption of the solution per 1 m³ of the base is the thickness of the bonding layer. With a layer thickness of no more than 3 mm per 1 m³ of surface, 8-9 kg of working composition is required.
Advantages and disadvantages
Adhesive for masonry of gas silicate blocks is characterized by high performance characteristics and is appreciated for its ease of use. Key advantages of building material:
- an increased level of adhesion and excellent indicators of plasticity;
- resistance to moisture and low temperatures;
- non-shrinking adhesive material and high setting speed.
The products are of interest for their budgetary cost and economical consumption. Although a universal dry concentrate costs twice as much as a classic cement-sand mortar, the consumption of glue for gas silicate blocks is 5 times less: the mass is applied with a minimum layer thickness not exceeding 2-3 mm. It also contributes to:
- an increase in the strength of the structure, since the minimum thickness of the seams ensures the solidity of the structure;
- improving the thermal insulation of the building by reducing heat loss through the seams, since the effect of cold bridges is leveled.
In addition, due to the minimum thickness of the seams, the laying of aerated blocks is smooth and beautiful.
The presence of water-retaining components in the adhesive eliminates the formation of mold between the blocks of aerated concrete, which has a positive effect on the operational characteristics of the structure.
The disadvantages of glue for gas silicate include exactingness to the evenness of the treated surface and high prices for products, although due to the economy of consumption, the high cost of building materials is leveled.
Types of mixtures for aerated concrete masonry and application features
There are seasonal varieties of dry adhesive concentrates on the market based on white and gray Portland cement, as well as compositions in the format of foam in cylinders:
- The white version of the building resource - summer glue for gas silicate - provides for use in the warm season. The composition owes this color to the base of white Portland cement. The attractive appearance of the fastening solution makes it in demand in interior work, which makes it possible to save on finishing.
- Gray glue is considered winter glue, although it is a universal option for aerated concrete masonry in any season. The composition has anti-freeze additives and is intended for use at temperatures in a wide range of up to -10 ° C.
According to experts, for the maximum effect, the frost-resistant mortar is recommended to be used at temperature ranges from + 5 ° C to -15 ° C, this guarantees the absence of errors and cracks in the seams.
The process of drying out the masonry at an elevated environment temperature mode is fraught with the risk of microcracks in the bonding layer, and as a result, the thermal conductivity characteristics of aerated concrete deteriorate.
Aerated concrete blocks are known to be inert to changes in ambient temperature. In this case, the correct technology for applying the adhesive plays an important role, while strictly following the manufacturer's instructions.
- a heated room should be used for storing bags with dry concentrate;
- preparation of the solution is carried out in a warm room, the water temperature for diluting the dry mixture should be at least + 20 ° C;
- working solution temperature - not lower than + 10 ° C;
- the ready-made solution is used for its intended purpose within half an hour.
Freezing of moisture is fraught with a deterioration in the quality of the seam, therefore, during winter work, the aerated concrete masonry should be covered with a tarpaulin.
Foam adhesive for gas silicate is an innovative solution in this segment. The building resources market offers an adhesive composition for porous concrete blocks in the format of foam in cylinders, for which a special device is used in the form of a construction gun.
Popular adhesive mixtures
When deciding which glue for gas silicate blocks to choose, it is worth studying the features of current proposals.
- Aerostone is a product of the Dmitrovsky aerated concrete product plant. Cement-based mixture with polymer additives. The product is presented in winter and summer versions.
Adhesive for gas silicate blocks Aerostone - Thermocube is an adhesive mixture for indoor and outdoor use, designed for thin-joint masonry of walls and partitions based on groove and non-groove gas silicate blocks. The building material is distinguished by high qualities of strength, frost resistance and ductility. Provides economical consumption.
- Ilmax2200 - glue for masonry blocks made of porous concrete, including gas silicate, aerated concrete, expanded clay concrete slabs and other wall panels. The frost resistance of the product is 75 cycles, the operating temperature ranges from -30 ° C to + 70 ° C, the temperature for laying blocks varies from + 5 ° C to +25 ° C. The ready-made solution is used within 4 hours.
- Ceresit is perhaps one of the most popular construction brands, a supplier of high-quality mixes for work in various categories. Ceresit CT21 glue is made on the basis of cement; mineral fillers and organic modifiers are included as additives. The product is used for thin-layer masonry of gas silicate wall blocks and other types of aerated concrete panels.
- Knauf is a gypsum-based adhesive that provides strong adhesion to the surface. The products of this manufacturer are in demand due to their competitive quality, although they are sold in an expensive segment. The environmentally friendly Knauf Perlfix adhesive mixtures are easy to apply and allow for quick alignment of blocks.
- IVSILBlock - the mixture is used for laying grooved and ordinary aerated concrete blocks. Polymer inclusions increase adhesion, and modifying additives impart plasticity to the binder base. The position of the blocks when laying with this mortar can be adjusted within 25 minutes, which is considered a competitive advantage of the material.
- Aeroc is a product of an aerated concrete manufacturing enterprise from St. Petersburg, occupying a leading position in the domestic market of building resources.
- Zabudova is one of the best adhesives for gas silicate blocks. The products are appreciated for their high performance in winter use at a relatively low cost. The composition perfectly manifests itself at ambient temperatures down to -15 ° C, is easy to mix and apply, consumption is more than economical, the seams are not subject to atmospheric influences.
- Unic Uniblock - the brand manufactures high-quality gas silicate blocks and mortars for masonry, the products are sold in the middle segment.
- Bonolit, a dry concentrate for gluing gas silicate, deserves attention for its absolute environmental friendliness of the composition, does not have toxic impurities, and is in demand both in external and internal works.
Adhesive for gas silicate blocks Bonolit - "Prestige" - the mixture is used for masonry of all types of porous concrete blocks, it is distinguished by high frost resistance due to the composition with modifiers.
- "Pobedit" is a multicomponent cement-based adhesive with quartz sand and polymers, in composition it is completely identical to aerated concrete blocks and is capable of adhesion to the surface as high as possible, forming a monolithic composition.
- "EK Chemical" - a mixture intended for thick-layer masonry, suitable for work in any season. In addition to the construction of walls and partitions from blocks based on aerated concrete, the composition can be used when installing ceramic tiles and leveling wall surfaces.
Glue mixture solution preparation technology
The preparation of the working solution is carried out according to the instructions of the manufacturer of the dry concentrate. The general steps and principles for preparing an adhesive mixture include the following points:
- to prepare the solution, use a container of the appropriate volume and a drill with a mixer;
- measure the required amount of dry mixture and water, as indicated in the manufacturer's instructions. As a rule, the proportions are on average 1: 0.22, that is, 220 g of water is taken for 1 kg of dry concentrate;
- the range of water temperature for the solution is from +15 to + 60 ° C;
- knead the mass until smooth, then allow the solution to settle for 10-15 minutes and mix thoroughly again.
The solution is mixed in portions in accordance with the intensity of work on laying aerated concrete. The service life of the working mixture is about 3-4 hours, but this figure may vary depending on the brand, working conditions and other design factors. It is not allowed to add water to the finished solution, while the glue should be periodically stirred during operation.
It should be borne in mind that the consumption of glue for gas silicate depends on a number of factors, including:
- block geometry and surface defects;
- the presence of reinforcing elements;
- characteristics of the tool for applying the bonding agent;
- temperature and concentration of the solution;
- weather conditions and qualifications of the master.
The formula for the consumption of the adhesive solution looks like this: S = [(l + h) / l * h] * b 1.4, where:
- S - consumption of 1 kg of the mixture per 1 m³ of the base;
- l, h - dimensions of length and height in m;
- b - seam thickness in mm;
- 1.4 - conventional value of the consumption of dry concentrate in kg / m² with a thickness of the bonding layer of 1 mm.
In order to carry out the construction of walls made of porous concrete with the highest quality, it is necessary to use adhesive mixtures taking into account their purpose: for indoor or outdoor work, for laying gas silicate at positive or negative ambient temperatures. It is also worth paying attention to the setting speed of the working solution, this parameter varies from 5 to 25 minutes, depending on the brand of product.
In this case, the minimum period of solidification of the adhesive base in a block structure is 24 hours, and for the final result, a period of at least three days is required after installation.
- The composition of the glue
- Glue consumption
- Storing glue
- Manufacturers and price
- Main characteristics
- Glue application tool
Choosing glue for aerated concrete, I want to know how they differ from each other and whether there are other adhesives. Yes, there are other adhesives (foam, cement mortar), which we wrote about in this article. Well, now specifically about the glue, which is very plastic, quickly sets, and also hardens without shrinkage.
Composition of glue for aerated concrete
The composition of any cement glue for gas blocks includes:
- Portland cement.
- Washed and sieved fine sand.
- Modifiers.
- Polymer additives.
Portland cement is the main binder of the adhesive. The finest sand is used as an aggregate. Modifiers retain moisture. Polymer additives improve the bonding properties of the adhesive and the adhesion to aerated concrete.
Performance characteristics of the adhesive
When choosing an adhesive, you need to pay attention to its performance characteristics, which can vary as follows:
- The holding time is 10-20 minutes.
- Blocks correction time - 3-15 minutes.
- The hardening time is 1-4 hours.
- Layer thickness - 1-8 mm
- Working temperature - from -25 ° С to + 35 ° С.
It is very important to choose the glue according to the ambient temperature, if the thermometer is below zero, use frost-resistant adhesives... Also try to choose an adhesive with the minimum recommended application thickness.
Advice! To reduce the consumption of glue, try to cook small portions, precisely sized for several gas blocks.
| № | Manufacturer | The price of glue for 25 kg (rub) | Consumption (kg) per 1 sq. M layer 2 mm | Seam thickness |
| 1 | Ceresit CT 21 (Winter) | 300 | 2.6 | 2-10 |
| 2 | Baumit PBK |
200 | 2.5 | 2 |
| 3 | Baumit (winter) | 270 | 3 | 3 |
| 4 | KREISEL | 250 | 2.5-3 | 1-3 |
| 5 | AEROC (winter) | 240 | 2 - 3 | 1-5 |
| 6 | Ytong (winter) | 260 | 3 | 1-3 |
| 7 | Bonolit | 220 | 3 | 2-8 |
| 8 | BIKTON KLEB FROST | 230 | 3 | 2-3 |
| 9 | Polimin - PB 55.75 | 160 | 2 | 2-10 |
For aerated concrete masonry they also use:
- Special glue;
- cement-sand mortar;
- polyurethane foam adhesive.
Polyurethane foam adhesive
Glue-foam for aerated concrete masonry is a fairly new material that has not been tested by time, and therefore it does not inspire confidence in many. In addition, the question of the environmental friendliness of this foam becomes. Not all foam is suitable for the construction of load-bearing walls, although some manufacturers have created this option as well.
If we compare the consumption of foam and ordinary glue, then they are approximately equal. It is believed that foam seams are 30% warmer than conventional glue seams. In terms of the price / consumption ratio, it comes out about the same as glue.
Testing of glue and foam for aerated concrete
Disadvantages of laying aerated concrete on a cement mortar
- Thick seams 8-15 mm;
- High consumption;
- Cold bridges at the seams;
- Stir the solution for a long time;
- Difficulty laying in frost;
Usually, the calculation of the glue is done by cubic meters of aerated concrete. Manufacturers write that the consumption is about 25 kg of dry mixture per cube, but in practice the consumption is higher, and amounts to all 35-38 kg, that is, exactly one and a half bags of dry mixture.
Such calculations are suitable for gas blocks of any thickness, as the total area of the applied surface of the blocks in the cube is considered.
The glue consumption is strongly influenced by the geometry of the blocks; the smoother the blocks, the better. You also need to take into account the glue for the reinforcement in every third row.
The adhesive can be applied with different tools, for example with a trowel paired with a notched trowel, or a notched bucket, or a carriage.
Aerated concrete carriage is a professional tool that will greatly speed up the work. The carriage is designed in such a way that the thickness of the glue applied to it is always the same, and the special container with glue is very easy to replenish. The cost of the carriage is about 1000 rubles. Carriages come in various sizes for different gas blocks.
Storage and use of glue
Aerated concrete adhesive should be stored in a heated room with low humidity. Add to the dry mixture exactly as much water as is written on the package. It is advisable not to add very cold water, as it will not set well, the water should be warmer than +10. Before applying glue, the blocks must be cleaned of dirt, dust and all that is superfluous. It's pretty simple.
The construction of buildings from aerated concrete has ceased to be outlandish. This material is rapidly gaining market share due to its lightness and good performance characteristics. Such construction requires the use of special mortars, since standard cement ones are not particularly suitable for such purposes (the seams are too rough). Professionals recommend using special adhesives. What are they, how to calculate the material consumption, what are the manufacturers now offering?
Where is it used?
Adhesive for aerated concrete is a special dry construction mixture that is diluted with water in the proportions indicated by the manufacturer. It is used instead of the usual cement mortars for both external and internal work.
Use it for:
- masonry blocks of gas and foam concrete, expanded clay and bricks;
- alignment of wall surfaces, their putty;
- laying ceramic tiles.
Seasonal varieties
Universal gray glue is used not only in winter but also in summer. Now for the construction of buildings, two types of mixtures are used. Adhesive for aerated concrete blocks is:
- White. It is considered summer, it is used in a warm season. It owes a light shade (the same as that of) to white Portland cement, which makes it possible to save on interior decoration.
- Gray. Although this species is called winter, it is versatile, suitable for work in any season. Due to the presence of antifreeze additives in the composition, it is recommended for use in cold weather, however, it also has a certain temperature limit.
Composition and characteristics of the mixture
The composition of the glue for aerated concrete includes:
- high quality cement;
- fractional (specially sieved) sand;
- polymer additives used to improve the adhesive qualities of mixtures, their thermal conductivity;
- modifiers, due to which the seams do not crack when the temperature rises.
The advantages of compositions for working with aerated concrete include the following characteristics:
- the ability to make thin seams (only two to three millimeters thick), which allows you to reduce heat loss through the joints, reduce construction costs;
- frost and moisture resistance;
- the ability to work in cold weather (with winter glue);
- hardening without shrinkage.
Mode of application
Required tools
To prepare the solution you will need:
- a container in which you will need to stir the dry bulk mixture with water;
- a drill with a special attachment (to obtain the correct consistency of sour cream, use a construction mixer);
- measuring device to maintain the correct proportions.
To apply glue and carry out masonry, use a steel or notched trowel, a bucket trowel (carriage) for aerated concrete.
Cooking method
Sell dry mixes in bags of 25 kg. To prepare the adhesive, the calculation is as follows: one factory package requires five to five and a half liters of clean water (that is, 200-220 milligrams is taken per 1 kg). The liquid should be warm (15-18 to 60 ° C).
After kneading, you should get a mass without lumps. She must be allowed to "settle" for five to ten minutes, and then stir again. The glue is usable for only a couple of hours, so it is prepared in batches.
Application method
On clean blocks (without dust, dirt, oil stains), aerated concrete glue is applied with a minimum layer. The thickness of the seams during laying should not exceed 2-4 millimeters. The excess is removed immediately or cut off with a trowel after hardening. The position of the blocks can be adjusted for about ten minutes more (permissible - with a rubber hammer). Level the surface with a light tap
Note. It is necessary to protect yourself from getting the ready-made solution in the eyes and on the skin, therefore, the use of protective clothing and gloves is recommended. A respirator or gauze bandage will not interfere.
Winter works
For masonry in cold weather, a gray winter composition is used. However, as we have already mentioned, there is a certain threshold for it too (the temperature “overboard” cannot be lower than -10 ° C, manufacturers usually recommend a value of 5 ° C or more). For the solution itself, the temperature is maintained above zero - only if this condition is met, good adhesion of the materials is ensured.
Note. Do not glue together frozen, snow-covered blocks - according to technology, this is not allowed.