For laying gas silicate blocks, special glue or regular glue can be used. building mixture. According to experts, it is best to use glue for the construction of external walls.
For laying gas silicate blocks, it is best to use special glue.
The use of special glue for masonry has the following advantages:
Glue for gas silicate blocks allows you to connect elements with a masonry joint thickness (2-10 mm).
- cement-sand mortar is much more expensive than glue. The consumption of adhesive is six times less, and its price is only two to three times more;
- the use of fine-grained glue completely eliminates the appearance of “cold bridges” (a layer of material with high thermal conductivity, which leads to a significant decrease in the uniformity of the entire masonry and a significant increase in heat loss);
- Using glue, you can lay walls made of aerated concrete, gas silicate blocks, shaped bricks and other foam silicate elements. The adhesive composition makes it possible to connect masonry elements with a masonry joint thickness (2-10 mm). It can be used to level horizontal and vertical surfaces, and the layer thickness can reach 5 mm;
- the adhesive composition has excellent thermal insulation properties, high adhesion, good strength, excellent ductility;
- if necessary, after laying the gas silicate block, it is allowed to correct its position within 10-15 minutes;
- The glue is quite easy to prepare and apply, which makes this material very convenient to use.
Adhesive composition
Glue for gas silicate blocks is a dry adhesive mixture of cement with small additives and fillers in the form of water-retaining, plasticizing, air-repellent substances. These additives help increase the strength, frost resistance, water resistance and other parameters of the glue.
Why is adhesive for a gas silicate block better than a solution of cement and sand?
All elements that make up the adhesive for blocks have increased strength, frost resistance and water resistance.
There are opposing opinions among builders. Some claim that it is absolutely not difficult to lay blocks with glue, while others claim the opposite: in order to lay blocks with glue, competent masons are needed. The situation is further complicated by the fact that there are regions for which it is absolutely not common and in which it will be quite problematic to find specialists to perform such work. But, according to experts, even a non-professional can lay blocks. To do this, you just need to carefully study the topic of execution construction work using gas silicate and foam concrete blocks, and then strictly follow the instructions you have studied.
A distinctive feature of the adhesive mixture for gas silicate and foam concrete blocks is the presence of a special additive that prevents the blocks from quickly absorbing moisture from the adhesive mixture. This additive retains moisture in the adhesive solution, which allows for reliable bonding. gas silicate blocks.
Glue selection
Of course, it is most reliable to purchase glue from the direct manufacturer of the blocks. But very often its cost is unreasonably high. As a rule, the price tags for such goods are increased several times.
Experts say that any glue that is intended for outdoor work can be suitable for building a private house using gas silicate blocks.
Preparing the mixture
In order to prepare the glue, you need a construction bucket with a small amount Add the dry mixture to the water, stirring constantly. After 7-10 minutes, stir again.
Dry adhesive mixture for gas silicate and foam concrete block mixed with water using a construction mixer or drill with a special attachment. If you don’t have a mixer, you should take into account that the greater the power of the drill, the better the adhesive mixture will be mixed. You can use any water; the water consumption is indicated on the packaging of the dry mixture.
So, pour into a construction bucket required amount water. While stirring constantly, gradually add the adhesive dry mixture. Approximately 7-10 minutes after complete dissolution, re-mix the adhesive mixture.
To maintain the required consistency of the glue during construction work, it is necessary to stir it periodically.
In order to properly prepare glue, there is no universal recipe. Each brand and each manufacturer has its own recipe for preparing the adhesive solution. Before purchasing, you should remember that the quality of the glue is directly dependent on the amount of water added to the solution and the dry mixture is added to the water, and not vice versa.
You should also know that an overdose of water significantly worsens the characteristics of the adhesive mixture. Therefore, before preparing the working mixture, you need to carefully study the instructions for its preparation.
Very often, some home craftsmen ask the question: what glue to use when laying blocks in winter? Experts say that in winter time years, when the air temperature reaches -15°C, you need to use frost-resistant glue, which includes antifreeze additives, as evidenced by the inscription on the packaging of the dry mixture.
The order of laying blocks
The blocks themselves are laid 15 minutes after the working surface is prepared.
First of all, if necessary, you need to prepare work surface. It should be firm, dry and free of foreign materials. Soot, dust, oil and loose elements must be removed. Significant surface unevenness must be leveled; for this purpose, glue for gas silicate and foam concrete blocks can be used.
So, on a previously prepared work surface, apply a layer of adhesive mixture using a trowel, then level it using a notched trowel. must be laid no later than 15 minutes after you apply the glue to the work surface. You can adjust the position of the block within 10-15 minutes after you have laid it. The setting time of the adhesive at air and base temperatures from -15 to +25°C is 2 days, and the adhesive solution gains full strength after 72 hours.
Correct laying of the block involves applying glue to the horizontal surface of the already laid bottom row and to the vertical part of the previous block. If it is necessary to lay an additional sawn block, it must be coated with glue on both sides.
The correct order of applying glue is: on the horizontal surface of the already laid out bottom row and on the vertical part of the previous block.
Adhesive for gas silicate and foam concrete blocks allows you to significantly reduce the consumption of the adhesive solution due to its special composition, which allows you to lay blocks with seams of 2-3 mm. Of course, glue consumption primarily depends on the quality of the blocks used. When using blocks with a perfectly flat surface, the adhesive consumption will be approximately 20 kg/m³ with a masonry layer thickness of 2 mm. Well, and, accordingly, if there is a need to lay blocks with a thicker layer, then the amount of glue will be increased. Experts say that it is always necessary to purchase a dry adhesive mixture with some reserve.
Features of use
When using glue for laying gas silicate and foam concrete blocks, it should be taken into account that only the second row of blocks is laid on the glue. The first row must be laid on cement mortar. This is done in order to somehow smooth out the existing unevenness of the foundation surface.
Cold bridges appear due to a decrease in the thermal conductivity of a structure during its operation.
If you plan to lay gas silicate blocks in one row, then you must use glue. Since it has the same density as gas silicate. By laying gas silicate and foam concrete parts on cement mortar, which has a density of about 2000 kg/cm², the end result will be “cold bridges” in the form of masonry joints. The consequence of the formation of “cold bridges” will be a significant decrease in the thermal conductivity of the structure during its operation. Based on this, experts who have experience using glue for, claim that the most practical way of laying such blocks is in 2 rows (20 cm each).
You need to remember that only the second row of blocks is placed on glue, and the first is placed on cement mortar.
Carrying out masonry work, one should take into account external influences that play a fairly important role. In particular, this refers to the air temperature and humidity in the room. For example, a decrease in room temperature, as a rule, entails a significant increase in the setting time of the glue. And, conversely, increasing the temperature sharply reduces the setting time. In addition, due to room temperature, shrinkage cracks may form. In rooms with high humidity drying of dry adhesive mixtures is significantly slower. And in rooms with insufficient humidity, due to the enormous speed of setting, microcracks appear in masonry joints. So, if you don’t want to get an extra headache, monitor the humidity and temperature in the room.
The more the adhesive solution costs, the more professionalism will be required to use it. A good adhesive mixture must be applied correctly (thinly), otherwise using it will cost you a pretty penny.
And for such work you will need a certain skill, dexterity and a fairly smooth foam concrete or gas silicate block! It should be taken into account that expensive mixtures are not designed for thick masonry layers; they will simply crack and burst. If everything listed above is missing, then the masonry should be done using a regular mortar of cement and sand.
It is necessary, and rightly so! But this is not always possible. The reason lies in the lack of experienced specialists who could provide a masonry joint of 2-3 mm. Not every qualified mason is capable of performing such work. Based on this, when hiring masons, immediately discuss this condition with them.
Designed specifically for the installation of walls made of gas silicate building blocks.
Features of adhesives for gas silicate blocks
Adhesives for gas silicate blocks are a type of adhesives for foam blocks, which are produced on the basis of cement, sand, modifiers and plasticizers to impart certain characteristics. The main feature of the adhesive is its thin-layer application, which makes it possible to minimize “cold bridges” in the masonry without losing adhesion strength.
To minimize glue consumption, use high-quality building blocks with a smooth surface without cracks or gouges. Manufacturers recommend applying glue in a layer of 1-5 mm and strictly following the instructions for preparing the solution. This will ensure the absence of breaks in the adhesive layer, frost resistance and thermal insulation properties of the masonry.
If you start construction in the cold season, use winter modifications of adhesives for gas silicate blocks with antifreeze additives.
It is not recommended to use tile adhesive and conventional masonry mixtures, which have completely different properties, for laying cellular blocks.
The high moisture resistance of the adhesive composition provides protection against the penetration of dampness and prevents the development of mold and fungi.
Buy glue for gas silicate blocks in Moscow
If you are a fan of energy-saving construction technologies and have chosen warm blocks from gas silicate, then for best result need to use special adhesives for gas silicate blocks. This will minimize the future heat loss of the house and its heating costs. IN Moscow buy glue for gas silicate blocks Available in our online store with delivery or pickup from the warehouse. We offer prices from the manufacturer, and favorable conditions for wholesale customers.
Gas silicate blocks have become widespread. The motives are clear: low price on the material, high speed of construction of structures, as well as relatively low weight, which in turn makes it possible to abandon deep foundations.
However, gas silicate itself is a porous material, which makes it colder and reduces the thermal efficiency of the building. Heat escapes through many small holes in the block. It is these features that should be taken into account when choosing masonry adhesive.
For gas silicate blocks, glue based on sand, cement, plasticizers of organic and mineral origin is used. The thickness of the seams and glue consumption will depend on the manufacturer and the elements included in the glue.
Composition and properties of adhesive for gas silicate blocks
The composition of the adhesive for gas silicate blocks necessarily includes:
- fine sand;
- binder base in the form of high-quality Portland cement;
- modifying inclusions.
Polymer additives provide plasticity and adhesive properties of the solution. Modifying inclusions retain internal moisture, which protects the seams. The solution ensures high adhesion of the blocks, is not absorbed by them and reduces their thermal conductivity.
These properties of the composition are among the main features of gas silicate adhesive.
Which glue is best for gas silicate blocks
- Manufacturer. Well-known suppliers value their reputation and carefully monitor the quality of their products.
- Storage and packaging. Important condition for glue - a dry, ventilated room. If you are not sure exactly how to store the product or the packaging is damaged, it is better to refuse. Also, experts do not recommend taking the dry mixture by weight.
- Advance paynemt. Before purchasing glue for gas silicate blocks, it is recommended to make a preliminary calculation of material consumption, which will allow you to more accurately determine your needs and save money. cash not allowing you to buy too much.
Pros and cons of gas silicate glue
The advantages of adhesive for laying blocks include:
- increased level of adhesion;
- resistance to low temperatures and moisture;
- the adhesive composition does not shrink, and also has high speed grasping.
It should also be noted that the products are of interest due to their final budget cost. Although the adhesive mortar costs twice as much as ordinary cement mortar, the adhesive consumption is 4-5 times less (the mortar is applied with a minimum thickness of 2-3 cm).
This also has its advantages:
- increasing the strength of the structure;
- increased thermal insulation;
- Due to the small thickness of the seams, the laying of gas silicate blocks turns out smooth and beautiful.
The disadvantages of gas silicate glue include increased requirements for evenness and the surface being treated.
Where to buy glue for gas silicate blocks
You can buy glue for gas silicate blocks in our online store at a price of 144 rubles per 25 kg bag.
In our store there are different companies and glue packaging, so you can calculate the required volume and choose the option that is suitable for your purposes.
For finishing building facades in modern construction Special blocks from modern materials. They have good technical characteristics, look great, are relatively inexpensive and very easy to use. For fastening, adhesive for gas silicate blocks is used, which fully satisfies all current safety standards.
Light blocks made of modern materials, thanks to their special structure, retain heat well inside the building. And in order not to deteriorate this property, for installation it is necessary to use not an ordinary solution, but a special mixture. Therefore, many are interested in the question, which adhesive for gas silicate blocks is better?
It is very difficult to give a definite answer, since there is no single brand on the market that would surpass all competitors in all respects. Each situation requires its own approach, so you must first of all pay attention to the technical characteristics of the glue and be guided by the operating conditions of the building, the climatic zone, and the average annual air humidity level.
Types and composition of glue
There are several types of glue:
- - mixture for indoor masonry;
- - mixture for masonry outside;
- - mixture for masonry indoors and outdoors;
- - a mixture for laying on top of heated floors with special enhanced thermal conductivity and resistance to temperature effects;
- - a mixture for masonry in places with high humidity and for finishing swimming pools. Highly resistant to moisture;
- - universal mixture with increased hardening speed.
All of the listed varieties are present on the building materials market in unlimited quantity. The price of glue for gas silicate blocks depends on the country of origin and technical characteristics. In general, it is accessible to most ordinary Russians. When making large wholesale purchases, you can save a decent amount, so it is important to correctly calculate the amount of materials required for repairs, so that during the work you do not have to purchase the missing amount.
The more universal properties the glue has, the more expensive it will cost. But save on building materials it is forbidden. A small gain now will lead to huge losses in the future. Any repair is carried out with a long-term perspective, which means that the materials used must be of the highest quality and durable. This is the only way to resolve the issue of home decoration for many years to come.
The adhesive contains fractionated sand, Portland cement and special chemical compounds that are responsible for its properties. Moreover, all elements are non-toxic and absolutely safe for humans. During operation, they also do not react and do not create new compounds, which has a positive effect on the durability of the masonry. Preparation of the working solution is no different from the standard procedure. Simply add the required amount of dry mixture to a container with water and mix thoroughly until a homogeneous mass is formed.
Features of working with glue
The work is done using a regular trowel or spatula. Laying of gas silicate blocks on glue is carried out sequentially in a pre-selected direction. The master simply moves from one corner of the room to another, gradually covering the entire treated area. The blocks are pressed against each other as tightly as possible so that the seams are not visible. The width of the adhesive layer should be 2-15 millimeters, depending on the situation. Excess solution is removed from the surface using a damp cloth.
The glue dries in 2-24 hours depending on atmospheric conditions. It will take 7-10 days for it to reach its maximum density, so for the first time after repair it is better not to perform any manipulations with the treated surface. Glue consumption is approximately 15-20 kilograms per cubic meter. There is no need to add additional additives to the solution; the dry mixture already contains everything necessary for use.
The treated surface is pre-prepared for repair. To do this, it is leveled and primed. You can also carry out antifungal treatment using a special liquid. You can work with glue at temperatures from -8 to +30 degrees Celsius. The lower value is typical for winter, frost-resistant adhesive for gas silicate blocks. It may differ for other models.
Useful tips from professionals:
- The tools used in the work must be made of corrosion-resistant metal alloys of medium hardness.
- At high temperature environment and low air humidity, it is necessary to prime the surface to be treated immediately before installation. This will increase the level of adhesion of the mortar to the walls.
- It is necessary to carry out work wearing protective gloves and special glasses. If the composition gets into your eyes, you should immediately consult a doctor.
- Not worth it for a long time store the dry mixture under conditions high humidity, as this may render it unusable.
Working with glue is no more difficult than with regular glue. cement mortar. You just need to follow the manufacturer's recommendations, and then everything will work out without any problems. The main thing is to always remember safety and not work without protective accessories to normal repairs did not turn into a useless sick leave.
Glue is a mixture of elements, thanks to which it is possible to achieve tenacity with various materials. But for the durability of the resulting seam, you should focus on a quality product, especially if you have to glue gas silicate blocks. Such glue can be obtained from sand, cement, plasticizers of organic and mineral origin. Today on construction market There are a large number of compositions for gluing gas silicate blocks, the choice of which depends on the preferences of the owner, as well as the conditions for laying the material. Let's consider which options are best to choose in terms of price/quality ratio.
Frost-resistant for laying blocks in winter
When determining the best adhesive for gas silicate blocks, it is necessary to take into account reviews from consumers who have already been able to evaluate the quality of the product from their own experience. Let's consider the most popular and high-quality brands of masonry adhesive in winter.
Zabudova
This composition is perfect for laying blocks in winter. The reason is in the components that make up it. There is a special additive that is not affected even by severe frost (frost-resistant). Many builders speak positively about this product, because the glue is characterized by such advantages as ease of application and ease of use. In addition, the cost of Zabudov is not high, which allows the adhesive composition to occupy a leading position in the market of ready-made dry mixes. The cost of production is 120 rubles per bag.
Prestige
This composition is also not afraid of frost. It can be used for laying cellular blocks and even slabs. Characteristic feature glue remains it quick cooking. The cost of the composition is slightly higher than that of the first option. For a 25 kg bag you will pay an average of 140 rubles. You can find out which foam glue to use for the ceiling from the article. 
Bonolite
This adhesive for aerated concrete blocks can also be used in winter. The main advantage of the mixture is its environmental friendliness. The glue contains no harmful impurities or toxins. It is completely safe for human health. But its cost is higher than the previously described options. You will have to pay 180 rubles for the bag. can be used in construction from the article by following the link. 
Eunice Uniblock
Uniblock glue is now actively used for laying gas silicate blocks. The reason for this popularity is due to the set positive qualities, which include the following:
AEROC glue
These products are characterized by high strength characteristics. Glue is actively used for laying blocks of cellular concrete when providing thin-layer laying of external and external walls. The thickness of the resulting layer is 1-3 mm. 
The high popularity of the product is due to its following characteristics:
- there is no formation of “cold bridges”;
- not affected by moisture;
- severe frosts are not scary;
- It is allowed to use the prepared solution within 2 hours, as it will not harden;
- vapor permeable.
Due to high adhesion, it is possible to achieve solidity and high strength characteristics of the building being constructed. The adhesive contains the following components: cement, mineral fillers, modifiers of organic and polymer origin. The cost of a bag is 250 rubles.
This composition is presented in the form of a multicomponent dry mixture, which is based on cement, quartz sand and various modifying additives. Glue is used for laying gas silicate blocks. You can purchase the mixture for work in summer or winter. This product is also very popular, because it is suitable for most gas blocks produced in Russia. After preparing the composition, it is characterized by high plasticity and manufacturability. It does not stick strongly to the instrument, and after application it forms a good moisture-resistant layer. The glue is characterized by high fixing ability. The cost of the product is 190 rubles per bag. 
EK Chemicals190
Purchasing this mixture involves its use for thick-layer laying of gas silicate blocks not only in winter, but also in summer. In addition to laying blocks, it is actively used in the installation of tiles, sides and slabs, as well as other highly porous materials with further coating. When using this glue, it is not necessary to level the surface. Changes and slopes can reach up to 15 mm. Can be used inside the house to level walls built from the sides. The product costs 190 rubles. 
Which gas silicate glue is better to choose?
There is no clear answer to this question. The reason is that the best adhesive compositions were presented above, according to the reviews of many people who have experienced all their pros and cons. The choice of adhesive composition should be made not only taking into account personal wishes. Here it is important to take into account the type of work and the conditions for laying the block.
Each of the available products has a safe composition, high plasticity, and can be used in severe frosts. Today, the best adhesive compositions are the products listed above, and only you can choose which is the best when you do your research when working with them. Some prefer to use it for installation.
The video explains which glue to choose for gas silicate blocks:
Flow calculation technology
If all the rules for producing the mixture and applying it to the blocks have been followed, then its consumption can be carried out in the following ways: glue is sold in bags weighing 25 kg. This value was not chosen by chance by the manufacturer, because the weight of dry glue is optimal for laying 1 m3 of blocks. Thanks to this, the consumption of the composition will be very easy to carry out. Let's look at this in more detail using an example:
- After you have calculated everything, it turns out that to lay the walls and partitions you will need, say, 63 m3 of aerated concrete.
- If the thickness of the laying layer is 3 mm, then the consumption of the adhesive composition per 1 m3 of blocks will be 63 bags.
- When the thickness of the seam between the laying blocks is 2 mm, the amount of glue consumed will decrease by 5 kg. Then for 63 m3 you will have to spend 20x63 = 1260 kg of mixture. Next, 1260/25= 50, 4 bags. Round up and get 51 bags of glue.
- The obtained value is the smallest amount of glue that needs to be spent to erect a building, the construction of which involves the use of 63 m3 of aerated concrete. When the price is known, you can simply find out the cost of the adhesive solution.
In the video - winter glue for gas silicate blocks:
If you use a cement-sand mortar for installation for such a volume of work, then here you will need 2 dm 3 of glue. Thus, 1 cube of the mixture will be used to lay 4 cubes of blocks. To prepare a cube of mortar, you will need 7 bags of cement. The price will also have to include the price of sand, purchase or rental of a concrete mixer. Taking all this into account, you can obtain the amount of mixture required to lay 1 m3 of aerated concrete: 7/5 = 1.4 bags.
Construction modern houses Most often it is carried out from gas silicate blocks. For a strong grip, it is very important to choose a quality adhesive composition and accurately calculate its consumption. Thus, you can save the money you spend if you buy glue from more. The constructed structure, if all conditions are met, will serve you for a long time without the formation of certain defects.
