Gas silicate blocks : the size , density and other properties

production and scope gazosilikata

This material is an artificial stone made from a mixture of crushed quartz sand, lime, as well as some of the concrete.With the help of blowing agents, this composition is the process of "swelling test", and then - hardening by steaming or autoclaving.The result is a porous, lightweight material.Weight silicate blocks in the construction of the wall is on average from 350 to 700 kg / m3.

he produced all kinds of density, depending on which is different, and their scope.For example, the material with a density of 350 kg / m³ is used as insulation, blocks with 400 kg / m³ are quite suitable for the erection of self-supporting and load-bearing walls in low-rise buildings (a 2-storey houses).With 500 kg / m³ are good for the construction of non-residential and residential buildings higher than three stories.And finally, from 700 kg / m³ are great at multi-storey building.

silicate blocks: the advantages and disadvantages

The main advantage of this material is recovered its extraordinary strength and lightness.That is why it is so highly valued in the construction market.Moreover, gas silicate blocks, thanks to its technical characteristics, provide the reliability and durability of all constructions listed the main advantages and disadvantages.

• Low thermal conductivity , and therefore provides excellent thermal insulation.Particularly good protection from the cold aerated concrete brand D500 and D600.And in the summer it will protect the building from overheating.
• high fire resistance and protection against the spread of flame .According to the basic European standards, it belongs to a class "A" and 1.2 degrees in DBN V. 1.1-7-2002.This means that it can be used for insulation constructions t insulating substrate to about 400 C (at this block only increases strength).
• Good sound insulation , which is an average of 45-50 dB (depending on the brand of blocks and wall thickness).Thus, favorable acoustic conditions for home owners.
• processing ease and laying .It can be cut, cut virtually any adapted for this tool.Because of this, you can make the blocks of different sizes and reproduce even the most complex architectural structures.
• High resistance to the effects of aerated concrete mold, mold and other microorganisms (even at high temperature and humidity).This eliminates the need to process all kinds of works antiseptics.

Among the shortcomings are the following: lower prism hardness and the possibility of accumulation of moisture in the pores.

The first means that the material is subject to cracking.Second - it leads to the demultiplexing and the overall local failure.But, anyway, Gas silicate units, the characteristics of which are described above, have been successfully used in the construction, and its popularity is growing every day.For additional protection external walls with plaster trim or siding.

few words about

packing We would like to say straight away that any particular technology application of this material does not exist.A distinctive feature of aerated concrete is the ease of installation.Because we give a few recommendations.Firstly, as already mentioned, this material is easy to cut, because any holes for sockets, you can drill a conventional drill.Secondly, the first series of aerated concrete should be laid on cement solution to how to compensate for any unevenness of the foundation.

also worth considering that the laying of the first row should be carried out on a layer of tar paper (as waterproofing).Further blocks are aligned horizontally with the help of the planer.Third, the second and subsequent rows must be stacked with ligation of aerated concrete.Residues from the seams of the solution was removed using a trowel.The sides of the blocks processed by a conventional electric saw (just cut off).And, fourthly, for the installation of window and door openings are installed on top of metal or reinforced corners web.