Basalt mineral wool: production
Minvata on a basalt basis is made by mixing and melting metallurgical slag and rocks( basalt).The result is a fibrous material with better performance and a long service life. This is achieved precisely because of the fact that in the production process, rocks are used without adding any mineral or synthetic substances.
Only in some cases the composition includes 10-35% of charge or limestone in order that the material is more resistant to aggressive components and high temperatures. But to say that the mixture produced in this way is a basalt fiber, it is impossible. Rather, it's just mineral wool.
Continuing to talk about mineral wool on a basalt basis, we recall that it can be produced according to predetermined parameters of length and thickness. The following types are distinguished: BTV and BSTF .The first means thin basalt fibers, the thickness of which is 5-15 microns. The second is superthin basalt fibers with a thickness of 1-3 microns. Length - up to 50 mm( in both species).Plus, mineral wool basalt slabs are very popular.
Basalt mineral wool: properties of
As already mentioned, due to the special components included in this material, the corresponding performance characteristics are provided. The positive features are as follows:
- Provides the with a long service life of the , an average of about 30-40 years.
- There are no favorable conditions for the development of mold, fungus and other microorganisms.
- Has low thermal conductivity . It is created due to the fibrous structure of mineral wool.
- Flameproof and non-flammable material. In addition, it prevents the spread of flame and does not release toxic substances.
- Provides excellent sound insulation.
- It is resistant to vibration and does not collapse from it( unlike other heaters).
- Environmentally friendly material that does not contain any carcinogens. In addition, its chemical formula is the same as that of basalt.
- Withstands sudden temperature changes and can be used at t up to 700 ° C( long term) and up to 1100 ° C( short term).
To negative properties can be attributed high cost. Also, due to the existing slots between the tiles, the material can allow heat to flow out.
But these small shortcomings do not prevent consumers from using minvat in various construction sectors. It is used in civil, industrial, housing insulation. In particular, this material can often be found on power equipment, ship structures. Plus, of course, it is used to isolate homes, baths, saunas and other objects.
A few words about the laying of
Mine basalt basalt is laid on walls, roofs, mansards, facades, floor, internal partitions of the room. When installing on the floor, the insulation is laid directly on the concrete slabs under the cement screed. And its density should be 160kg / m3.
If it is supposed to be installed on logs, then first lay a heater with a density of about 50kg / m3.Only then lay the floor itself. In both of these methods, basalt mineral wool is laid without special fastening( that is, it is not necessary to use dowels or glue).
If it is supposed to warm the walls( most often it is done in a "wet" way), then first prepare the base. Eliminate the old coating. For this you need to know how to remove old plaster, paint.
Next, remove any protruding parts and ground the base. And only then proceed to laying insulation material, which should have a density of about 80 kg / m3.Attach it with glue and dowels. Then reinforcement is made and decorative plaster is applied.
