Choosing glue for gas silicate blocks

Modern methods of building private houses delight their diversity. Previously, thinking about building their own homes, people knew for sure: we take a brick, we select the rest as we go. Today, the situation has changed somewhat, the interest of newly minted developers has shifted towards porous gas silicate blocks. This material is good because it has an almost perfectly flat surface, has good thermal insulation properties, is convenient and easy to install. Another of its indisputable advantage is the use of a special fastening compound, the features of which will be discussed later.

The glue used to build housing from gas silicate blocks is a universal mixture of elements that make it possible to fasten porous building material to each other as quickly and easily as possible.

The main features of this glue are its main advantages over the classic cement mortar:

• Low thermal conductivity. This is due to the absence of voids in the seams and the so-called "cold bridges".
• High percentage of adhesion to any surface. Glue is universal for any blocks: a brick classical and ceramic, foam - and gas concrete and other.
• Economical consumption. Due to the minimum layer thickness for setting (no more than 7 mm), the adhesive consumption is less than 6-8 times the consumption of cement mortar, which significantly affects the total cost of building materials.
• The versatility of this composition lies in the fact that it can be used as a means for leveling the surface in the horizontal and vertical direction.
• Comfort in operation. The main convenience of glue for gas silicate blocks is that it is easily kneaded, simply applied, and within 15 minutes after application the position of the block can be changed.
• The presence of mixtures for work in the cold season.

Of course, with so many advantages, it is very difficult not to look at the main disadvantages of glue for porous surfaces.Among others, for example, the exacting requirements for near-perfect surface flatness are often indicated. As well as the high cost of the bag - from 150 to 250 rubles for 25 kg. However, all these disadvantages are compensated by the advantages of the mixture.

Due to the large variety of manufacturers and forms of release of glue for gas silicate blocks, you can choose the most suitable option for you.

Glue production is focused on two main groups: winter and summer versions. Since it may be necessary to build a house of gas silicate blocks on the territory of our country at any time of the year, this plus is very good.

Frost-resistant glue should be used at a temperature not higher than +5 and not lower than -15 degrees Celsius. This ensures maximum effect, no errors, shrinkage and cracks. So, for example, if the process of glue drying occurred at a temperature of 10-20 degrees, there is a risk of cracks in the joints and, as a result, depriving the gas silicate of its main advantage - low thermal conductivity. Thus, all the heat will go out through the walls.

Another recent innovation was the release of glue for gas silicate blocks in foam format. As well as assembly, glue-foam is sold in cylinders that require a special construction "gun". The only "but" in the use of this type of glue for porous structures is its incomplete approbation. So far there is no information about how long such a mixture can last and how well.

As you know, every kulik praises his swamp. The same happens with the leading manufacturers of building mixtures. There are many of them and they all very actively distribute their products, calling it the very-most. Let's try to figure it out.

The ideal option is the acquisition of gas silicate blocks and glue for them from one manufacturer. This immediately increases the efficiency and durability of the future building.But some companies may deliberately put a higher price on their building mixtures. Therefore, experienced professionals know who is better to buy blocks, and who has glue. We will understand "by name".

Aerostone - mix from Dmitrovsky plant of gas-concrete products. Available in winter and summer versions. Product based on cement with the addition of water-retaining polymer additives.

Zabudova. It is considered one of the best adhesives for working in the cold for a small price - about 120 rubles per bag. It is easily mixed and applied even in -15, does not shrink, is not susceptible to the influence of the environment and atmospheric phenomena.

"Prestige" it is convenient for use not only with gas silicate blocks, but also with other porous plates. On the manufacture of the adhesive mixture takes a minimum of time.

Bonolit Noginsk company "Bonolit - building solutions". This glue is absolutely clean and safe. It has no toxic artificial impurities. It can be used for stacking blocks outside, and for interior work.

Unic uniblock - one of the most popular manufacturers of glue and gas silicate blocks. The main advantages of this particular mixture are a complete set of characteristics allowing to make the most efficient, functional and durable construction:

• high thermal insulation properties;
• resistant to moisture and temperature changes;
• excellent ductility allows you to change the position of the unit within 20-25 minutes after installation;
• environmental friendliness;
• average price category.

Aeroc produced by the plant for the production of cellular concrete "Aerok SPb" in the city of St. Petersburg. The high strength of the finished material and the unique thin layer (up to 3 mm) bring this glue to the leading positions of the building materials market in Russia.

"Wins" - multicomponent mixture based on cement, silica sand and additional polymer impregnations. The composition of this glue almost completely repeats the composition of the main gas silicate blocks presented today on the Russian market. It is this quality that allows it to accurately and quickly engage with the surface, forming a unique monolithic structure, not afraid of moisture, frost and heat.

These are the main well-known manufacturers of glue for gas silicate blocks, which have confirmed their title as the best for years of use. The list did not include mixtures similar in properties: Thermocube (Kostroma), Poritep (Ryazan), Eco (Yaroslavl), which are less popular, but in no way inferior to their more famous "colleagues."

Choose a good mix is ​​easy. Based on the experience of professionals, their own needs and flair, you can get an excellent result for a little money, but of excellent quality. The main thing is to comply with all necessary requirements and technology.

When choosing a particular brand of glue should be guided by the following criteria.

• The name of the manufacturer. Very often there are insidious one-day firms that produce low-quality promotional materials, which turn out to be fiction and do not bring the necessary result, and sometimes even harm the building. In order not to be mistaken and do not fall for the scammers, it is better to trust the well-known and proven trademarks, and also remember that a quality product can not be cheap.

• Packaging and storage conditions. When choosing a product in stock, immediately pay attention to how it is stored. Increased humidity in the room, sudden changes in temperature, damage to the package, a bag with blurred letters and a company logo - all these are obvious witnesses of a poor-quality mixture.This material is so good, subject to the rules of its storage, how disgusting it is when at least one parameter does not correspond to reality.
• By weight. Never agree to buy glue for gas silicate blocks without packaging. No one can give you an absolute guarantee that there are no low-quality impurities.

Having decided on the brand-manufacturer of glue for gas silicate blocks, you can proceed to the calculation of material consumption. Often, all companies indicate this value on the packaging of their products, however, this information is only a reference, so for each individual case it is necessary to calculate the adhesive consumption per cube of blocks individually.

The main parameter, which determines the amount of solution consumption per 1 m3, is the layer thickness. If this figure is no more than 3 mm, then the amount of glue on average will be from 8 to 9 kg per cubic meter. At the same layer thickness of 3 mm or more, the consumption of the finished mixture increases by 3 times and is 24-28 kg for the same surface area.

In order to somehow optimize the consumption of glue, you can resort to the following technological tricks.

• Surface preparation. One of the important criteria for the laying of gas silicate blocks using specialized glue is ideal evenness. The smoother the blocks, the less will be the consumption of mortar.
• Compliance with the technology of preparation of the solution. Just take and knead the glue for laying gas silicate blocks, like dough for pies, will not work. It also has its own system: first, the glue-powder is poured directly into the water, collected in a clean container (plastic or galvanized bucket fits perfectly); secondly, mixing takes place in two stages, with a short break (5-7 minutes, not more); thirdly, it is not necessary to direct a large amount of the mixture at once, since it can not be fully used before it hardens (for most manufacturers this time is limited to 2 hours).
• Application methods also play an important role in reducing the consumption of glue. For example, the main tool for laying the mixture is a spatula with cloves. Putting gas silicate blocks is better 10 minutes after applying the adhesive, tightly pressing and tapping with a rubber hammer on the surface.

The first row of blocks is never put on the glue.Always under the initial "line" of the whole structure is the foundation: a concrete screed, screw piles, and so on. So the whole building will be much more stable and durable.

These are the main tricks that should be used in work to minimize the consumption of glue for gas silicate structures without compromising quality.

In order to position the blocks as accurately as possible and between the layers of glue, it is necessary to use mixtures designed for a specific case: for indoor or outdoor use, for laying silicate blocks at high or low temperatures.

It is also necessary to remember that the minimum period of hardening of the adhesive in a block or panel construction is 24 hours. But the best and final result is observed not earlier than the third day after laying.

Compliance with the main indicators of temperature and humidity allows the construction of a gas silicate structure with the use of special glue quickly, simply and efficiently, even to a beginner builder who does not have additional skills or education. Of course, it is very important to enlist the support of professional bricklayers and experienced builders in this difficult task.then just to rejoice and enjoy the positive result of their own efforts.

How to choose glue for gas silicate blocks, see the following video.