The rapid development of the building materials market makes it possible to make a choice in the richest assortment of various materials needed in construction. Since ancient times, when building a house, important factors influencing this process have been environmental friendliness and the possibility of saving heat in the house. To this is usually added the desire to carry out construction at a minimum cost.
Various types of cellular concrete are especially popular with the consumer: foam blocks, gas silicate blocks, foam concrete. First, let's figure out why this material is popular with the consumer.
An important factor when choosing cellular concrete is its low thermal conductivity compared to brick. This is possible thanks to the technology of its manufacture.
The most common components: sand, water, cement, lime are raw materials for the production of cellular concrete, but its structure is unusual in the presence of numerous small pores and voids filled with air. Namely, air is the best and natural heat insulator.
Gas silicate blocks are an excellent replacement for bricks. Their standard size is 60x30x20 cm, and when using only one such block, a space equal to 18 bricks is closed. The mass of these bricks will be 65 kg, and the gas silicate block with a density of about 600 kg / m³ - only 23 kg! These blocks, having a convenient size for laying and an ideal geometric shape, greatly pressed ordinary bricks in the construction of buildings and structures.
The consumer justifies his choice in favor of gas silicate blocks due to its special thermal insulation properties. By reducing the funds spent on heating the house, the costs of gas silicate blocks are more than paid off.
In order to minimize heat loss in the room, when working with gas silicate blocks, it is necessary to use aerated concrete glue. Let's decide what the advantage of this glue is.
When using a conventional cement-sand mortar to connect the blocks, the thickness of the seam between the blocks turns out to be too wide - about 15-20 mm. Cement-sand mortar, having poor thermal insulation properties, does not allow to keep the heat in the room as much as possible, thereby reducing the use of the aerated concrete blocks themselves to almost zero.
But it is not possible to reduce the layer of cement-sand mortar to a minimum of 3-4 mm, since the blocks absorb the water contained in the mortar, and therefore the strength of the masonry is lost.
Unlike cement-sand mortar, special glue can significantly reduce the size of the resulting joint - up to 2 mm. However, it is not only the thickness of the seam.
In glue for working with gas silicate blocks, certain additives are used that significantly increase its thermal insulation properties.
The question arises: why, when laying gas silicate blocks, there can be such a small thickness of masonry, because this is impossible when working with bricks. This is primarily due to the shape and size of the blocks used; as mentioned above, blocks are made with minimal deviations from the ideal shape. Therefore, the use of glue becomes possible.
Let's make a list of the main advantages when using glue in working with gas silicate blocks:
The instructions indicate the ratio of parts of the mixture and water. An adhesive solution is prepared in an ordinary clean bucket. Following the advice of the instructions, the mixture is added to the water prepared in the bucket and mixed thoroughly. Mixing is carried out using a drill with a special nozzle.
After the first mixing, the solution should settle, then mix again. Having received a homogeneous mass, the solution can be considered ready for use. Since it tends to harden, you should not prepare an excessive amount in advance.
The resulting mixture is applied to the surface of the gas silicate block and leveled with a notched trowel.
When buying glue, due to the variety of materials on the market, a natural question arises: which manufacturer to prefer? Today, the choice of glue is not a problem, since this segment is quite saturated, and you can choose glue from both imported and domestic production.
Consider several noteworthy types of glue for gas silicate blocks.
Gas silicate blocks have many advantages over other building materials, however, when using them, there is also a need for “wet” processes when plastering and puttying. Let's consider how to properly apply plaster with a minimum of loss in time and loss of material.
The following tools are required for plastering a gas silicate block:
Before the process begins, the surface of the wall is cleaned of dirt and dust. To increase the adhesion of the mortar, notches are made on the surface of the gas silicate block - there is an increase in the area of contact of the plaster mortar with the wall.
With the help of a plumb line, the evenness of the walls is determined.
Typically, plaster compositions are applied with a thickness of 2 cm, since with a greater thickness they become loose. If for any reason a greater thickness of the solution is required, then the application is done in several layers.
For internal plastering, gypsum and gypsum-lime mixtures are used; for outdoor work - cement.
The plaster mixture is prepared in a plastic container: the dry mixture is poured with water and stirred with a drill to a creamy consistency.
The plaster is applied to the surface of the wall with a ladle or trowel. The life time of the cement mortar for plastering is about 30 minutes, gypsum - 20 minutes. Therefore, the preparation of the solution is carried out gradually.
Since gas silicate blocks are afraid of water, it is recommended to use special plaster, which should have the following characteristics:
Walls of gas silicate blocks must be prepared for finishing as follows:
Gas silicate blocks are a very popular material among builders. Their performance characteristics are simply amazing. The walls of them are laid out not with the help of cement mortar, but using a special glue. Of course, the box will turn out to be reliable only if a high-quality fastening composition is used. We will talk further about which glue to choose for gas silicate blocks.
First of all, glue for must have properties such as:
moisture resistance;
frost resistance;
high degree of plasticity;
good adhesiveness.
In order to make the masonry comfortable, this type of adhesive should also not set too quickly. In this case, the master, if necessary, will be able to correct the position of the already laid block. It is believed that the glue for gas silicate blocks should not harden for at least 10-15 minutes. However, of course, a composition that sets too long cannot be considered of high quality. The optimal setting time is 3-4 hours.
Experts advise purchasing glue and gas silicate blocks in the kit. In this case, the composition will be the most suitable. However, it often happens that manufacturers of gas silicate blocks unreasonably overestimate the cost of glue. Therefore, many owners of suburban areas who decide to build houses from foamed concrete prefer to purchase a bonding compound separately. When buying such a mixture, you should first of all pay attention to the brand of the manufacturer. This greatly increases the chances of acquiring a quality composition with good performance and performance.
If you are wondering which glue to choose for gas silicate blocks, you should consider buying the material of the following brands:
"Prestige".
Eunice Uniblock.
"Win-160".
"Bonolith".
"Zabudova".
All these compounds are environmentally friendly and have a high degree of plasticity. It is about them that the network has the best reviews.
The main advantage of the compositions of this brand is considered fast cooking. Prestige glue can be used for laying not only blocks, but also cellular slabs. This brand is inexpensive. For a bag of kg you will have to pay about 140 rubles.
This is perhaps the most popular glue for gas silicate blocks today. "Which one to choose the best composition?" - this question usually does not arise from specialists. This mixture has just a lot of advantages:
excellent thermal insulation performance, as close as possible to the characteristics of the foam concrete materials themselves;
moisture resistance and frost resistance;
ease of use;
environmental safety.
The glue of this variety costs about 200 rubles per bag.
The main advantages of the adhesive of this manufacturer include a high degree of strength. Most often it is used to perform thin-walled masonry. The advantages of this option are also considered frost resistance, moisture resistance and vapor permeability. The thickness of the joints in the masonry when using this adhesive can be 1-3 mm, which completely eliminates the occurrence of cold bridges. A bag of such glue costs about 250 rubles. In terms of performance, this is perhaps the best adhesive for gas silicate blocks at the moment.
The main advantage of this glue is its environmental friendliness. There are absolutely no impurities in its composition that are harmful to health. Its performance characteristics are also simply remarkable. And it costs a little cheaper than the adhesives of most other popular manufacturers - about 180 rubles per bag.
This adhesive is characterized by such advantages as ease of use and ease of application. Glue "Zabudova" is the cheapest version of the mixture of all gas silicate blocks intended for laying. Those who want to choose a good quality adhesive for gas silicate blocks and save money at the same time should consider purchasing this particular option. A bag of 25 kg of the composition of this manufacturer costs only 120 rubles.
Next, let's see which glue to choose for gas silicate blocks if the walls are laid in winter. For the construction of foam concrete houses in the cold season, almost all of the options described above can be used. However, when choosing the most suitable composition in the store, you should ask for the option with special additives (winter). Such compositions cost a little more than summer ones.
A very popular product intended for winter is, for example, a special variety of Bonolit. Also, in the cold season, laymen often use winter glue for the KSZ gas silicate block, produced by the Kostroma silicate plant. Quite popular with builders are also adhesives intended for laying in cold weather:
So, what kind of glue for gas silicate blocks to buy - we figured it out. Next, let's see how to properly prepare the selected composition. When mixing adhesives intended for bonding gas silicate blocks in masonry, the following recommendations must be followed without fail:
The dry mixture must be added to the water, and not vice versa.
Mixing should be carried out with a drill with a special nozzle. In this case, the glue will turn out to be as homogeneous as possible, which means that it will be of high quality.
After the first batch, the composition should be kept for 5 minutes.
Use ready-made glue for a maximum of 2 hours.
When preparing glue, it is important to strictly observe the proportions indicated in the instructions. Too much water in the mixture significantly impairs its performance. During the production process, the finished adhesive should be periodically mixed to maintain concentration. When preparing the solution, use a powerful drill. Any water can be taken.
It is, of course, quite difficult to find out how good a composition this or that company offers when buying. However, it is still possible to determine which mixture is best suited for masonry. To do this, you just need to buy a little of each of the adhesives. Then they should be diluted according to the instructions in the same containers. After the glue dries, the resulting solid material must be weighed. The lightest glue can be considered the best. The lower the weight of the material, the lower its degree of thermal conductivity.
If desired, you can also check the strength of the composition and its adhesive qualities. To do this, you just need to glue two blocks together, wait a while and abruptly throw them to the ground. If they come apart at the seam, then it's worth looking for another glue.
Well, now you know which adhesive for gas silicate blocks is best to choose in one case or another. When buying, first of all, you should pay attention to the brand of the manufacturer. If the masonry will be carried out in the cold season, you should also look for the “winter” mark on the package.
The construction of buildings from aerated concrete has ceased to be outlandish. This material is rapidly conquering the market because of its lightness, good performance. Such construction requires the use of special mortars, since standard cement mortars are not particularly suitable for such purposes (the seams are too rough). Professionals recommend the use of special adhesives. What are they like, how to calculate the material costs, what do manufacturers now offer?
Adhesive for aerated concrete is a special dry building mix, which is diluted with water in the proportions specified by the manufacturer. It is used instead of the usual cement mortars for both external and internal work.
Use it for:
Now for the construction of buildings, two types of mixtures are used. Glue for aerated concrete blocks is:
The composition of the adhesive for aerated concrete includes:
Among the advantages of compositions for working with aerated concrete include its following characteristics:
To prepare the solution you will need:
For applying glue and laying, use a steel or notched trowel, a bucket trowel (carriage) for aerated concrete.
Dry mixes are sold in 25 kg bags. For the preparation of the adhesive composition, the calculation is as follows: five to five and a half liters of pure water are required for one factory package (that is, 200-220 milligrams are taken per 1 kg). Liquid should be warm (15-18 to 60°C).
After kneading, you should get a mass without lumps. She needs to be allowed to “settle” for five to ten minutes, and then stir again. Glue is usable for only a couple of hours, so it is prepared in portions.
On clean blocks (without dust, dirt, oil stains), aerated concrete adhesive is applied with a minimum layer. The thickness of the joints during laying should not exceed 2-4 millimeters. Excess is removed immediately or cut off with a trowel after hardening. You can correct the position of the blocks for about another ten minutes (permissibly with a rubber mallet). Level the surface with light tapping
Note. It is necessary to protect yourself from getting the finished solution into the eyes and on the skin, so it is recommended to use protective clothing and gloves. A respirator or gauze bandage will not interfere.
For laying in cold weather, a gray winter composition is used. However, as we already mentioned, there is also a certain threshold for it (the temperature "overboard" cannot be lower than -10 ° C, manufacturers usually recommend a value of 5 ° C). For the solution itself, the temperature is maintained above zero - only if this condition is observed, good adhesion of materials is ensured.
Note. Do not glue together frozen, snow-covered blocks - according to technology, this is not allowed.
Designed specifically for the installation of walls from gas silicate building blocks.
Adhesives for gas silicate blocks are a kind of adhesives for foam blocks, which are produced on the basis of cement, sand, modifiers and plasticizers to give certain characteristics. The main feature of the adhesive is its thin-layer application, which makes it possible to minimize the "cold bridges" in the masonry without loss of adhesion strength.
To reduce glue consumption as much as possible, use high-quality building blocks with a flat surface without cracks and potholes. Manufacturers recommend applying adhesive with a layer of 1-5 mm and strictly following the instructions for preparing the solution. This will ensure the absence of gaps 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 adhesive and conventional masonry mixtures for laying cellular blocks, which have completely different properties.
The high moisture resistance of the adhesive composition provides protection against moisture penetration and prevents the development of mold and fungi.
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. IN Moscow to 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.
In the construction of buildings made of porous concrete, glue for gas silicate blocks is in demand, which stands out for its mass of competitive advantages compared to classic cement mortar. The product is a universal mixture for the highest quality bonding of gas and foam concrete slabs, ceramic blocks and brickwork.
The composition of the adhesive for gas silicate includes the following components:
Polymer components are designed to ensure the plasticity of the mass and improve the adhesive properties of the solution. Modifiers help retain internal moisture, which protects the seams from cracking.
High surface adhesion properties are among the key features of adhesive formulations. Also note the low level of thermal conductivity of the product, which is due to the absence of voids in the seams.
When choosing a binder for laying porous blocks, it is recommended to be guided by several criteria:
The main parameter when calculating the solution consumption per 1 m³ of the base is the thickness of the binder layer. With a layer thickness of not more than 3 mm per 1 m³ of surface, 8-9 kg of the working composition is required.
Adhesive for laying gas silicate blocks is characterized by high performance and is valued for its ease of use. Key advantages of building material:
Products are of interest for their budgetary cost at an economical expense. 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 helps:
In addition, due to the minimum thickness of the seams, the laying of gas blocks is smooth and beautiful.
The presence of water-retaining components in the adhesive composition eliminates the formation of mold between aerated concrete blocks, which positively affects the performance of the structure.
The disadvantages of glue for gas silicate include exactingness in the evenness of the treated surface and high prices for products, although due to the cost-effectiveness of consumption, the high cost of building materials is leveled.
On the market there are seasonal varieties of dry adhesive concentrates based on white and gray Portland cement, as well as compositions in foam format in cylinders:
According to experts, for maximum effect, the frost-resistant solution is recommended to be used at temperatures ranging from + 5 ° C to -15 ° C, this guarantees the absence of errors and cracks in the seams.
The process of masonry drying at an elevated ambient temperature is fraught with the risk of microcracks in the bonding layer, and as a result, the thermal conductivity characteristics of aerated concrete deteriorate.
Porous concrete blocks are known for their inertness to changes in ambient temperature. In this case, an important role is played by the correct technology for applying the adhesive composition while strictly following the manufacturer's instructions.
Freezing 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.
Adhesive foam for gas silicate is an innovative solution in this segment. The building resources market offers an adhesive for porous concrete blocks in the form of foam in cylinders, for which a special device is used in the form of a construction gun.
When deciding which adhesive for gas silicate blocks to choose, it is worth studying the features of current offers.
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 the adhesive mixture include the following points:
The solution is kneaded in portions in accordance with the intensity of work on laying aerated concrete. The term of use of the working mixture is about 3-4 hours, but this figure may vary depending on the brand, operating 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:
The adhesive solution consumption formula looks like this: S \u003d [(l + h) / l * h] * b 1.4, where:
In order to perform the construction of walls from porous concrete with the highest quality, it is necessary to use adhesive mixtures, taking into account their purpose: for interior or exterior 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.
At the same time, the minimum curing time for the adhesive base in a block structure is 24 hours, and the final result requires a period of at least three days after laying.
kayabaparts.ru - Entrance hall, kitchen, living room. Garden. Chairs. Bedroom