Manufacture and scope of
gas silicate This material is an artificial stone made from a mixture of crushed quartz sand, lime, and also some part of concrete. With the help of gas generators, this composition undergoes the process of "swelling the dough", and then - curing during steaming or autoclaving. The result is a porous, lightweight material. The weight of the gas silicate block at the construction of walls averages from 350 to 700 kg / m3.
It is produced in all possible densities, depending on which the scope of their application differs. For example, this material with a density of 350 kg / m³ is used as a heater, blocks with 400 kg / m³ are quite suitable for erecting self-supporting and bearing walls in low-rise buildings( 2-storey houses).With 500 kg / m³ are good for building non-residential and residential buildings with a height of more than three floors. Well, finally, with 700 kg / m³ are great for multi-storey construction.
Gas silicate blocks: disadvantages and advantages of
The main advantage of this material is its extraordinary strength and lightness. That is why it is so highly valued in the construction market. In addition, gas silicate blocks, due to their technical characteristics, ensure the reliability and durability of all structures. List the main pros and cons.
- Low thermal conductivity of , and therefore provides excellent thermal insulation. In particular, the D500 and D600 aerated concrete protects well against cold. And in the summer, he will protect the building from overheating.
- High fire resistance and flame protection .According to the basic European standards, it is classed as "A" and 1.2 degrees according to DBN B. 1.1-7-2002.This means that it can be used to insulate the structures t of the insulating base to about +400 C( with the strength of the blocks only increasing).
- Good sound insulation , which averages 45-50 dB( depends on the brand of blocks and the thickness of the walls).Thus, favorable acoustic conditions are created for the owners of the house.
- Easy handling and laying of .It can be sawed, cut almost any tool adapted for this purpose. Thanks to this, you can make blocks of different sizes and reproduce even the most complex architectural buildings.
- High resistance of aerated concrete to the effect of fungus, mold and other microorganisms( even at high temperature and humidity).This allows you not to use all sorts of antiseptic in the process.
Among the shortcomings are the following: low prismatic hardness and the possibility of moisture accumulation in the pores.
The first means that the material is susceptible to cracking. The second - leads to decompaction and, in general, local destruction. But, one way or another, the gas silicate blocks, the characteristics of which were described above, are successfully used in construction, and its popularity is growing every day. For added protection, exterior walls are finished with plaster or siding.
A few words about the installation of
I want to say right away that there is no special technology for applying this material. A distinctive property of aerated concrete is the simplicity of its installation. Therefore, we give only a few recommendations. First, as already mentioned, this material is easily cut, because any holes in the socket, you can drill a conventional drill. Secondly, the first row of aerated concrete should be laid on the cement solution in order to properly compensate for any irregularities in the foundation.
It should also be noted that the first row of masonry should be applied to the layer of ruberoid( as a waterproofing).Next, the blocks are aligned horizontally with the help of a plane. Thirdly, the second and subsequent rows should be stacked with a bandage of aerated concrete. Remains of the solution from the seams are removed using a trowel. On the sides the blocks are treated with a conventional electric saw( simply cut off).And, fourthly, for mounting window and door openings from above, metal corners or reinforced bridges are installed.
