Technical traffic jam. Features of the material, characteristics and application

When it comes to natural ecologically clean building materials, one of the first materials that are remembered about, this is a traffic jam. Today it is used in different areas and for different purposes. The technical cork is used for heat and sound insulation of the premises, as well as as a substrate for many flooring, such as laminate. What are the features of this material, why it uses such a popularity in this article, and also dwell on the technical characteristics and methods of using a technical traffic jam.

1. Features of cork materials and their advantages
2. Technical plug in rolls
   • Technical characteristics of traffic jams
   • The use of technical traffic jams in rolls
3. Technical leaf traffic jam
   • Technical characteristics of leaf traffic jams
   • Application of a technical traffic jam

Features of cork materials and their advantages

Why are cork materials considered environmentally friendly? The fact is that raw materials for their production are a cork oak tree. And in the production of final materials, no synthetic substances are used, the material is exclusively natural.

Camping oaks grow in the Mediterranean countries, of which Portugal are considered the largest supplier of cork materials. When the age of the cork oak reaches 25 years, the bark is removed from it for the first time. Thanks to natural intensive regeneration, the bark grows again, and the tree does not die. After 9 years, you can again remove the bark from the tree, and with each removal the quality of the bark is getting better and better.

After removing, the bark is dried in natural conditions, and then they are sent to the plant where various products are produced. For the production of technical traffic, the bark is crushed, and then the granules of the crushed bark are pressed under pressure and processed with steam. At the same time, additional binders are not used, as in the case of artificial polymers, since the cork itself includes suberin's natural glue, which is more than 45%in the material. The technology for the production of cork materials is called agglomeration, which is why the position of technical traffic jams is called black cork agglomerate and white cork agglomerate. They differ only among themselves in that for a white agglomerate, the bark of the branches of the tree is used, and for the black bark of the barrel.

A unique feature of the cork is its cellular structure. For every 1 cm3 traffic jams accounts for up to 40 million cell cells. Each cell has the shape of a polyhedron with 14 faces, the inner space of the multi -graphic is filled with a gaseous mixture. It is thanks to such a peculiar structure that cork materials have excellent thermal insulation properties, and also do not pass water and gaseous substances. The cells are separated by intercellular partitions.

Cork materials have both purely technical advantages over the rest, and have other advantages that can play a decisive role in choosing insulating material.

Advantages of technical traffic jams:

• Complete environmental friendliness and hypoallergenicity. No harmful substances are distinguished from cork materials, neither at rest, nor when heated or burning.
• The traffic jam easily restores the shape after compression or torsion, bending. The material is extremely elastic. Even after years of use, he does not remember and does not start, but continues to be pleasantly springing underfoot.
• The cork is a natural antiseptic, so building materials from it are not subject to decay and the appearance of molds.
• Rodents and insects do not eat cork.
• Cork materials are not afraid of ultraviolet radiation and do not miss it.
• Do not electrize, do not accumulate static electricity.
• Cork materials during burning do not distinguish phenols, chlorine and cyanides or other dangerous substances. So that the cork does not burn, it is treated with a special substance, after which it can be attributed to class G1 (non -combustible substances).
• Thanks to the natural unique structure, the cork has low thermal conductivity, which allows you to use it for insulation or thermal insulation of buildings.
• The cork also has excellent soundproofing properties, reducing the noise coming from the street.
• The material is convenient to use, durable and universal.
• Safe for the environment, as it is disposed of in a natural way.
• Technical traffic jam retains all its properties at negative temperatures, therefore it is used in the production of refrigeration chambers.
• The water resistance of the cork allows you not to worry about the material even in case of flooding the house.
• As exceptional features, the following can be distinguished: the cork reduces the level of radioactive radiation, and also isolates from the harmful effects of technopathogenic zones.

Also, cork materials are not afraid of alkalis and other substances.

Depending on what purposes it will be used for, the technical traffic jam can be bought in two types: in rolls or in sheets. They differ not only in the form of release, but also with the thickness of the material. Let us consider in more detail the characteristics and features of the use of roll and leaf technical traffic jam.

Technical plug in rolls

The technical roller cork is also called a cork substrate. Usually produced in rolls with a width of 1000 and 1400 mm, but the thickness of the material is of greater importance. The thickness of the plug in the rolls can be 2 mm, 2.5 mm, 3 mm, 4 mm, 8 mm, 10 mm.

Technical characteristics of traffic jams

From the above table, information on the technical characteristics of the roller and sheet positions of the technical cork can be gleaned.

It can be added to the above that the service life of the roll substrate is equal to the life of the building, this is one of the most durable natural materials.

Humidity the material is a maximum of 7 %, which is extremely important during installation and further operation.

Residual deformation0.2 %. Thanks to such low indicators, the cork material is not crushed and returned to the previous form after prolonged loads. For example, after 1.5 minutes after the cessation of exposure, the residual deformation is only 0.35 %, after 15 minutes already 0.25 %, and after 150 minutes only 0.17 %.

Rolled traffic jam inert in relation to various chemicals.

pay attention to sound insulation coefficient. With the thickness of the cork of 2 mm, it is 16 dB, and with a larger thickness (4 10 mm), the sound absorption coefficient can increase to 22 dB or more.

Also important resistance to sound shock12 dB.

The deformation module of elasticity 2000 2500 kgf/cm2. This suggests that the material is able to withstand colossal loads without significant deformation and is not subject to destruction. Thanks to these properties, it can be used at many construction facilities where the pressure of heavy equipment, for example, is very large.

The use of technical traffic jams in rolls

Rolled technical cork is used as thermal insulation and soundproofing material. It is laid under the laminate, linoleum, parquet board and shield parquet, performing the function of the substrate that reduces the transmission of clapping sounds from movement along the wooden floor. The substrate also serves as a heater between the base for the flooring and the flooring itself.

When equipping warm floors, a roll cork is also used and performs all the same functions.

An important advantage of using a roll cork in the arrangement of floors is that the material allows you to level small irregularities of the base, and also has excellent impact -absorbing properties.

Also, a roll cork can be used for insulation and sound insulation of walls and ceiling, but it is less convenient than using sheet technical cork. The fact is that the roll cork must be straightened for fixing on the surface, and the sheets are already even. As a substrate on the floor, a roll cork is ideal, as it presses the flooring. When insulating walls and ceilings, this is inconvenient.

When laying a roll technical traffic jam on the floor, the room temperature should not be lower than +10 s, humidity is not higher than 75 %. Laying can be started a day after the roll is unpacked and the material is straightened. The floor screed should be even, clean and dry, residual humidity should not exceed 2.5 %. In the process of installation, the roll is cut into the necessary segments, which are laid on the floor surface without gaps. The joints are carefully glued. By the way, it is impossible to fix the roll back to the floor mechanically, only glue it.

Technical leaf traffic jam

The technical plug in the form of sheets differs from the roll only by the strength of the material and the size. Usually it is a plate of 940x640 mm with a thickness of 2 to 10 mm. The most common positions are cork sheets with a thickness of 4, 6 and 10 mm. On leaf technical plug, the price depends on the thickness of the material, because it also affects the technical properties.

Technical characteristics of leaf traffic jams

The table of the characteristics of the leaf traffic jam can clearly see that the so -called white agglomerate has a great sound absorption, which means that it is more suitable for the soundproofing of the premises.

In addition, I would like to note that the material is easily restored after the pressure. For example, when providing a load of 7 kg/cm2, compression is 10 %, and an hour later 0.7 %.

Sound absorption coefficientleaf traffic jam, measured at a frequency of 2.1 kHz, is 0.85. This allows you to significantly reduce noise, as well as completely eliminate reverb. This is especially important with sound insulation of sound recording studios and cinemas. After all, reverb is the spread of the sound of the reflected sound of an echo.

Application of a technical traffic jam

Leaf technical cork is used for thermal insulation and sound insulation of the premises. It is isolated the floor, walls, ceilings, ceiling. In the room, which is isolated by technical traffic jam, there is completely no echo and minimum noise from the street.

A technical cork can be in any environment, so it can be used when decorating the external facade, and during the interior decoration of the room, and as a substrate for the floor covering and a warm floor, like a roll cork. As a heater, a technical traffic jam can be used in floors, and on the floor, and on the walls, and on the roof, and on the outer walls.

Important! The only restriction of the use of technical traffic jam is production facilities where metal is processed. The fact is that metal shavings quickly clogs the pores of traffic jams, and it ceases to perform its functions.

In combination with other materials, the technical traffic jam significantly reduces noise and reverb. The cork is also used to reduce vibrations coming from machines and other mechanisms, regardless of what load they provide on the cork.

The cork provides the best sound absorption in the high -frequency range of over 1.5 kHz. This makes it possible to completely isolate the room from sharp loud sounds coming from the street, such as barking dogs or screaming. Also, with the sound insulation of the partitions between the rooms, you can isolate the room so that the stereo system or TV will not be heard.

But to reduce the vibration noise that is transmitted by ceilings, or vibration of mechanisms, the cork is not capable of. Actually, like any sound insulation.

For the best sound insulation, the room is finished in a cork comprehensively: ceiling + walls + floor. To improve the acoustic properties of traffic jams, it is advisable not to cover it with other finishing material. You can, for example, use cork decorative panels in addition to technical traffic jam.

The technology for installing sheet technical traffic jams practically does not differ from the installation of a roll substrate. The only difference is that leaf material can be laid immediately, since it is already even. The sheets are glued to the surface with a special glue, necessarily in the way. Sometimes sheets are attached mechanically, but much less often.

And finally, the advantages of leaf traffic jam over rolling, which the professionals installers noticed:

• The leaf cork is more dense.
• It’s easier to install, since one person can cope with it, unlike rolling, where an assistant is definitely needed.
• The leaf cork does not need to be aligned.
• It is more convenient to cut to the required size.
• The leaf traffic jam does not break and cracks, as it is not turned into a roll.

Technical cork universal material, which is used in almost all places where isolation is necessary: \u200b\u200bboth indoors and outside. An indisputable plus is the water resistance and non -possession of the influence of mold, rodents, insects. The only drawback of technical traffic jam is a high price compared to synthetic insulating materials of the same class.