To build a house from aerated concrete blocks, you need to think through all the nuances to the smallest detail, including choosing the most suitable mixture to be used in construction. The most beneficial option may be a special glue. By its properties, it is most resistant to severe frosts and a high level of humidity. It can also be used when leveling various rough surfaces and puttying buildings.
The main types, characteristics and benefits of adhesive for aerated concrete
Glue, which is used for aerated concrete structures, has some advantages compared to cement mortar. The composition of this tool includes Portland cement and fractional sand. Thanks to them, the thickness of the adhesive layer is 2-3 mm less. However, he does not lose his quality characteristics. Such glue is sufficiently plastic, it is moisture resistant, it catches to the surface instantly. It can harden without shrinkage and does not form “cold bridges”. Important properties of adhesive for aerated concrete are relative ease and practicality in use. To prepare it, you do not need to put much effort. It is only necessary to mix the dry product thoroughly with water - and you can safely begin work. The solution can be used for several hours.
The components that make up the adhesive
This product is made from special substances, such as:
- Portland cement of high quality.
- Sifted sand.
- Various additives from polymers.
- Additives that prevent seams from cracking.
The undoubted advantages of building material - before you:
- The temperature at which glue is used is from + 5 ° C to + 30 ° C.
- Moisture resistance reaches 95%.
- Glue is used within 2 hours.
- It freezes for about 15 minutes.
- Within 3 minutes, you can adjust the surface.
Apply this product to the surface using an ordinary spatula with a thickness of 2 or 3 mm. Alignment of the surface occurs with a light tapping on it. In order for the masonry to dry evenly, it is covered with some object. It can be a plastic film or tarpaulin. On average, glue is taken in the following proportions: one bag per one cube of concrete.
Choosing an adhesive in the winter
If you have to build a building in winter, then for work it is necessary to choose an adhesive that is suitable for cold weather, as well as one that can withstand low temperatures. The composition of such a product usually includes additives that protect the surface from frost. However, when applied to the surface, the air temperature should not be lower than -10 ° C.
The main properties of winter glue for aerated concrete:
- The presence of antifrosty additives.
- Grey colour.
- This material is used for any type of construction work.
- Lack of susceptibility to external factors.
- Resistance to frost.
- Does not absorb moisture.
- Ecologically, an absolutely pure product.
Frost-resistant adhesive must be stored in a warm room. The solution is done with the addition of warm water. Its temperature should not be lower than + 10 ° . The surface on which the adhesive will be applied must be absolutely clean. The time of use of such a tool is half an hour.
Glue consumption for aerated concrete
It is quite easy to choose a quality product, since there are a lot of good manufacturers in the building materials market. But, unfortunately, the consumption of glue for aerated concrete for each product is different.
This tool has its advantages. It needs two times less than the usual solution, which is used in construction work. The glue line should be 5 mm, while a regular joint reaches 10 mm. Buying the described tool, you can easily determine what the glue consumption is for each millimeter of the treated surface, since such numbers are indicated on the package. Still, theory is a theory, but in practice, things can be different. After all, many unforeseen moments affect the consumption of such a tool in work. This includes the features of the work of each worker, the tools that experts use, the weather in which such activities are performed.
Optimal price
As for the price of adhesive for aerated concrete, it can change. If you have a choice: the lowest price or a high-quality product, choose the second. You should not save on the quality of the goods, because otherwise you will have to spend twice as much money as planned. The price of glue for aerated concrete depends on its main components and on what additives are included in its composition. 25 kg of funds are in the range of 300-800 rubles.
The relatively inexpensive glue of a little-known brand is unlikely to boast any unique properties. When you purchase it, you will spend a lot, and the work will be done with low quality material. Therefore, before making such a purchase, you need to carefully study the manufacturer, find reviews on products that come out under this brand. Let you give a little more money for the purchase, but it will be worth it. The results will pleasantly surprise you.
Consumption per 1 m³
The use of adhesive for aerated concrete blocks in construction provides good savings. To work it needs much less than the usual building materials. The consumption of adhesive for aerated concrete per 1 m3 is approximately as follows: on average, from 15 to 30 kg of dry glue or a bag weighing 25 kg. But this is only theoretically. In practice, the ideal ratio is as follows: 1.5 bags per 1 m³. The thinner the adhesive layer on the surface, the better the masonry.