For the laying of aerated concrete blocks , a specially designed mounting adhesive is used. It allows you to stack the products as tightly as possible to each other, so that the building receives increased thermal insulation qualities. After all, these products are used not only for construction, but also for warming buildings and structures for various purposes. Mixtures for aerated concrete blocks must have high adhesive and heat-insulating qualities. They are made on the basis of polymer additives, cement, as well as sand and mineral fillers. Each ingredient performs its functions, providing plasticity, resistance to moisture, as well as increasing the strength characteristics. These are the qualities that the composition that you will use in the process of work should have.
Reviews of the advantages of glue for aerated concrete blocks over analog options
Glue for gas blocks has certain advantages, which is true if we compare with analog compositions that have a different purpose. Thus, these mixtures are characterized by high ductility, frost resistance, quite fast setting, water-repellent characteristics, as well as an excellent degree of adhesion. According to users, due to the presence of Portland cement and high-quality sand, during the laying process it is possible to make the thickness of the joints, which is equal to two millimeters. If we are talking about polyurethane adhesive, then it does not shrink during the drying process, which prevents the occurrence of cold bridges. After all, they become the reason that the walls let heat out.
As the home masters who were engaged in laying the described products emphasize, glue for gas blocks is very convenient to use, for its preparation it is enough to mix dry concentrate with liquid, the proportion recommended by the manufacturer should be taken into account. Despite the quick setting, the solution remains viable for several hours after mixing. Consumers choose these formulations for the reason that they have a 95 percent moisture resistance, their exposure time is fifteen minutes, and the blocks can be adjusted within three minutes after being put in place. Internal fillers have a grain size of 0.67 millimeters, and you can work with these mixtures at a wide temperature range - from +5 to +25 degrees Celsius.
Reviews of frost-resistant adhesives for aerated concrete
Adhesive for gas blocks may have increased frost resistance. According to customers, these formulations should differ in certain features. Despite the fact that antifreeze additives are included in the composition, it is not recommended to use winter glue if the temperature has dropped below -10 degrees Celsius. Adhesive for gas blocks of increased frost resistance, according to users, should have a gray color, environmental friendliness, resistance to aggressive natural influences, the ability to operate both indoors and outdoors. In this case, the mixture should be characterized by low heat loss, as well as the ability to prevent the appearance of cold bridges.
Reviews on products from different manufacturers
If you want to use glue for gas blocks for work, it is recommended to read reviews about it. As users emphasize, the Kreps mixture has the optimal composition and high performance. This product can be used both outdoors and indoors, among its characteristics are efficiency and profitability.
It is important to pay attention to technical specifications before purchasing, among them the maximum grain size of the filler, which can reach a parameter of 0.6 millimeters; and also the thickness of the layer, in this case it is 3 millimeters. As practice shows and the masters say, the exposure time is equivalent to 10 minutes, you can adjust the block during the same period. Full drying will occur after 4 hours. You should consider the average consumption, this will save money that could be spent on the purchase of unclaimed packages of glue. About 1 kilogram of composition will take about 1 kilogram meter.
Reviews about the adhesive "Azolite"
The Azolit compound is no less effective for winter construction, which differs in moisture-repellent characteristics and is intended for laying not only aerated concrete, but also silicate, as well as foam concrete products. Consumers claim that the average consumption per 1 cubic meter is 25 kilograms, the glue mobility is maintained for a maximum of 7 minutes, the bending strength is 4.1 MPa. Complete drying should be expected 2 hours after mixing, and the moisture content by mass is 0.08%. Quite often, specialists are interested in such a parameter as compressive strength, in the case of the Azolit composition it is equivalent to 11.2 kgf / m². Moisture absorption by mass is 2 percent, but the adhesion to the concrete base is 0.4 MPa.
Axton Glue Reviews
Axton gas block glue is now popular among consumers, it is a dry mixture, which is intended for solution preparation. You can apply this composition for outdoor work, where not only gas blocks are involved, but also brick, as well as any other products. Users like that this glue is able to undergo the effects of temperatures in a fairly wide range - from -50 to +50 degrees Celsius. Among other things, the products are notable for simplicity of preparation, high strength of the compounds formed, accurate dosage of components, and also low consumption of the mixture during work.
The described adhesive for laying a gas block is made in Russia, so its cost is negligible and amounts to 185 rubles. per 25 kg bag. Drying should be expected after 24 hours minimum, while the maximum limit is 48 hours. The adhesion is 0.4 MPa. According to users, the thickness of the seam can vary from 2 to 5 millimeters, this allows you to level the irregularities of the blocks. The composition can be stored for 120 minutes, and to adjust individual blocks after installation - for 10 minutes.
Qualitative characteristics of Axton glue
If you decide to use glue for Axton gas blocks (25 kg), you should know that the mentioned volume will be enough for 1.22 cubic meters. The composition is presented for sale in the form of a gray powder, which can be used after mixing during the installation of blocks that have grooves or are deprived of them.
Use of glue "Axton"
According to experienced users, to work with this glue, you need to prepare a notched trowel, trowel or steel spatula. Drawing on a surface is made as even as possible a layer, which can be leveled by means of a gear working surface. As soon as the adhesive for Axton gas blocks, reviews of which will help you make the right choice, has been applied to the base, you can lay the product, the position of which is aligned with a hammer. Excessive mixture must be removed with a trowel.
Reviews recommend that you prepare such an amount of the composition that you will be able to develop in a short time, otherwise the solution will lose its elasticity, and you will run into an overrun of the material. It is important to prepare hot water for mixing, the temperature of which is 60 degrees.
Conclusion
Adhesive for Axton gas blocks (25 kg), reviews of which are positive, should be applied to a previously prepared surface, which should be dust-free. To do this, the base is cleaned with a soft brush. It must also be ensured that there are no greasy stains on the surface of the products, otherwise the base must be degreased.