Aerated concrete technology
Aerated concrete is used very widely, in almost any construction activity of a person. And this material gained such high popularity due to such abilities as light weight, resistance to corrosion, good thermal insulation ... Aerated concrete technology implies obtaining a product by pressing technique using machines, or by way of natural shrinkage. The role of a binder is played by cement.
Aerated concrete began to be used quite widely for the construction of private houses, due to its practicality and affordability.
The process of building a house or other structure from aerated concrete, in fact, is divided into several main stages, characterized by their differences and nuances.
The start of construction is building foundation. However, it is worth noting that it is strictly forbidden to erect a light and shallow foundation, despite the relatively light weight of the material. Aerated concrete is characterized by structural fragility, which, when the base shrinks, will lead to cracks in the structure of the entire structure. The foundation should be made deep and massive, complemented by formwork, which will raise it above ground level.
Then aerated concrete technology involves covering the foundation with roofing material or other waterproofing materials. Thus, aerated concrete will be reliably protected from moisture. Cement-sand mortar fixes cinder blocks. This process is assigned one of the most important roles of the entire construction process. After all, it is subject to geometric accuracy when laying blocks, as a result, the builder receives smooth walls and floors.
Then the corner blocks are laid and the fishing line is laid, it is on it that the cinder block row will be laid out. To fill the vertical joints between the blocks, glue for aerated concrete is used. And to eliminate any irregularities, a special planer is used. The calculations are completed with additional blocks. The following cinder blocks are placed on top of a special glue, maintaining a layer about 3 mm thick, but a spatula can also be used.
Aerated concrete manufacturers are silent that this material, although it has a huge list of positive characteristics, could not become an absolutely perfect choice for building walls. It happens that buildings made of aerated concrete undergo a slight shrinkage. In connection with this fact, cracks may appear on the walls, which spoils the finish layer.
In any case, from which to build the house of your dreams, you decide. Have a nice construction!
The first question, of course, is this: "What is cheaper and more practical to build a house from?" And so the person begins to ring friends and acquaintances, sits for hours on the Internet, searches for information by any available means. However, in the end, without any special knowledge, only intuitively, with the help of price lists and a calculator, it comes to a decision - this is aerated concrete.
Aerated concrete wall thickness
By its density, aerated concrete is divided into three grades:
- heat insulating (D300 - D500),
- structural (D1000 - B1200),
- structural and heat-insulating (D500 - D900).
Before dwelling on a particular brand, it should be decided what role is given to the material - load-bearing structures or thermal insulation. The estimated thickness for thermal insulation in Moscow is 200-535 mm (D300, D400). In this case, aerated concrete will serve as a heater, as a layer. The thickness of the wall of aerated concrete will depend on the thickness of the main wall and the material.
If we stop at the option where aerated concrete is the main structure, then the density of the material should be from D500 and higher.
Here is a calculation for a density of 500 g / cm3:
- garage - starting from 200mm,
- building on one floor - from 380mm,
- two floors - from 400mm,
- three floors - from 460-535mm.
Do not forget the fact that it is impossible to use material for building a house above the third floor. Aerated concrete is not characterized by high strength.
Consider the technology of production of concrete on video
