fire retardant materials. The choice of non-combustible insulation Description of different types

Not only reduce the heat exchange of rooms with environment but also ensure the fire safety of buildings. Basalt fire retardant material is used for industrial and domestic buildings of any kind, not excluding baths, steam rooms, chimneys, boilers and the like.

The characteristics and advantages of basalt insulation are explained by the origin of the material, and the choice of insulation modification depends on the conditions of use.

Origin and production of basalt fiber

For the first time basalt fibers were found in the places of volcanic eruptions. Molten rock (basalt itself) falls to the surface of the earth and solidifies, turning into unusually strong fibers.

Subsequently, the found natural material began to be made artificially. For this, the rock is heated up to 1500 degrees. It is then poured into a special blown drum where jets of liquid stone solidify into fibers about 50 millimeters long and about 7 microns thick.

Longer threads are formed using phenol-formaldehyde resin. At the final stage, the resulting fibers are pressed, turning into basalt wool.

The structure of the stone insulating material fully corresponds to the "design" of its prototype - cotton wool: the thermal resistance of the material is provided by the presence of many air bubbles located between the hairs.

Under the general name "mineral wool", together with the material from basalt, falls glass wool, made from molten glass, and slag wool (from blast-furnace slag).

But basalt fire retardant insulation is considered the best. It does not absorb moisture from the air, as its “compatriots” (all other types of mineral wool) do, turning from thermal insulation into a heat conductor.

Compared to slag, basalt material is more environmentally friendly. It is easier to work with it than with glass wool (it pricks your hands less).

Advantages and disadvantages of the material

The advantages of using basalt fiber materials are determined by their properties, including:

• incombustibility (high melting point - 1114 degrees);
• the absence of harmful fumes and smoke when heated to critical temperatures (basalt - a natural stone, and phenol-formaldehyde resin in certified materials is neutralized at the production stage or not used at all);
• vapor permeability (0.3 - 0.6 mg / m * h * Pa);
• hydrophobicity (basalt insulation does not absorb moisture from the air);
• no shrinkage;
• vibration resistance;
• a wide range of densities, increasing the range of applications for fire-retardant material;
• resistance to acid-base environments;
• high strength (plates with a strength of 80 kPa are produced, their deformation during compression does not exceed 10%, such material can be used for insulation from the outside of operated flat roofs);
• good soundproofing (due to the soft fibrous structure of basalt fiber wool);
• excellent thermal insulation (from 0.034 to 0.048 W / m * C);
• small dead weight and thickness (basalt insulation does not burden the protected structures).

Some advantages under certain conditions look like disadvantages. For example, construction according to European standards is carried out from vapor-tight materials. And for wooden architecture, construction of bricks, foam and aerated concrete, on the contrary, it is important that the vapor permeability of the insulation is higher than the same indicator of the walls.

In addition, hydrophobicity extends only to the moisture contained in the air. If water gets on the surface of rock wool, it will be successfully absorbed.

The same applies to condensate. Therefore, if a dew point is likely to occur, the basalt insulation must be insulated from the side of the wall with a vapor-tight film.

The disadvantages also include high dustiness during operation, poor adhesion to the adhesive and the need to use expensive vapor-permeable paints. In addition, when using cheap material modifications, the release of formaldehyde vapors should be expected.

Applications

Depending on the variety, basalt insulation is used not only to provide thermal insulation for walls, floors, and roofs of buildings. Non-combustible material is indispensable in the formation of a fire belt outside and inside buildings.

A rolled sheet of basalt is wrapped around metal supports, wooden poles, cable channels of industrial buildings, air ducts and communication elements of air conditioning systems.

In the event of a fire, fire and smoke spread throughout the building mainly through ventilation systems penetrating through several rooms. The metal of air ducts is able to deform and burn through under the influence of high temperatures.

The flame, obeying forced or natural draft, instantly spreads throughout the structure, and this is dangerous for people's lives and the safety of property.

The use of basalt fire protection for air ducts and air conditioning systems helps in the event of a fire to prevent their depressurization and ignition of ceilings at the intersections with ventilation ducts.

Features of using different types of insulation

The use of basalt fiber is recognized as the simplest way to organize a fire barrier, which makes it possible to increase the fire resistance of air ducts up to three hours. Stone fiber is applied by spraying. In this case, a uniform coating is formed on the treated surface.

Only an experienced operator with specialized equipment can work with such complex material. In addition, this method of creating fire protection requires careful surface preparation (cleaning, priming), which ensures high-quality adhesion of the fibrous material and increases labor costs, which is a disadvantage of this method.

A feature of the formation of a fire-retardant barrier of an air duct using basalt mats or slabs is the use of a metal bandage.

The disadvantage of this method is obvious: when the bandage burns out during a fire, the protective layer of the structure is destroyed (falls apart). But in Russia and on the territory of the CIS countries, basalt fire-retardant systems are widespread due to the cheapness and incombustibility of stone wool.

Fire barrier "Bizon" is a basalt fabric of bonded fibers, covered with foil on both sides. This material is made without adhesives and binders.

Thanks to the polished foil, up to 97% of the heat is reflected, which, potentially in a critical situation (in the event of a fire), can be transferred to the ventilation ducts. Rolled material is supplied in 20 meter lengths, 1 meter wide.

The most effective method of complex refractory protection ventilation systems . This method is a joint use of rubber butylphenolic mastics and basalt foil sheets of different thicknesses. Stages of forming a refractory barrier:

1. processing with mastic (heat resistance 1300°C) of the surface of the air duct and fasteners;
2. wrapping the ventilation duct with a basalt sheet (foil layer on the outside);
3. mastic processing of basalt canvas;
4. creation of the second layer of basalt canvas.

Installation subtleties

The fire-retardant layer of basalt wool is formed after thorough cleaning, degreasing the surface and subsequent application of a fire-resistant adhesive to it. Glue is applied using standard painting tools (brush and spatula).

The material is cut using standard scissors or a sharp knife.

During all operations with basalt wool, precautions should be taken (protect eyes with goggles, respiratory organs with a mask, and hands with gloves).

After working with such dusty material, the used overalls are thrown away, since it is impossible to clean or wash them. Immediately after applying the adhesive to the structural elements (until the adhesive has hardened), the web is mounted.

The edges of the material at the joints formed during the installation process are fixed with aluminum tape. When cutting the canvas, provide a margin for overlap at the joints of at least 5 centimeters.

It is important to cover all fastening and enclosing elements (studs and brackets) with a basalt sheet. This is the only way to guarantee complete safety of the building. Air ducts do not need further finishing.

Of great importance is the quality control of the seams, right choice materials: basalt fire-retardant fabric of sufficient thickness and adhesive with suitable characteristics. It is necessary to correctly select the type of surface of the insulating material, each version of which differs in the parameters of thermal conductivity, sound insulation and density.

Varieties and labeling

Insulation rolled basalt fire retardant is produced in several modifications. This is manifested in the marking as follows: the foil material is indicated by the letter “F”, the presence of silicon is indicated by the letter “K”. If the letter “C” is included in the marking, the insulation has a fiberglass lining on one side, if “C2” is on both sides, “CC” is fiberglass. And the designation "MBOR-5" indicates that the basalt insulation is without lining.

Basalt fire retardant roll materials has a thickness of 5 to 16 mm. They can be used at temperatures from -200 to +900 degrees. Density varies from 500 to 1900 g/sq. m - for MBOR. From 600 to 2000gsm m - for insulation with foil, from 625 to 2025 g / sq. m - for basalt fabric with fiberglass.

Non-combustible insulation allows not only to isolate the house from heat exchange with outdoor air, but also ensures safety: the risk of fire, fire is minimized. Modern materials fire-resistant and can be used for industrial and domestic buildings of any type (including steam rooms, baths, chimneys, fireplaces and boilers).

Oxygen index

The oxygen index is a characteristic of the fire safety of a material, which shows the minimum amount of oxygen per unit volume of insulation. According to the oxygen index, there are several flammability thresholds:

• 40% - composite polymers;
• 31% - fibrous and cellular non-combustible heaters;
• 20% - materials that burn well in air.

Classification

Heat-insulating fibrous materials are non-combustible mineral insulation made of glass, basalt fiber, which can withstand +500°C. They are used in specific places:

• for insulation of pipelines in the form of cylinders with foil reinforcement;
• thin mats, plates for flashing plastic windows;
• basalt - for insulation of walls, roofs and floors.

According to GOST, wool is divided into the following categories: stone, glass, slag wool. According to the same GOST, all types of cotton wool have a combustibility of the NG class - the oxygen content index is at least 30%. Let's consider each type in more detail.

Glass wool is made from fiberglass by melting glass and drawing the fibers from it.

This material is very fire resistant, has low hygroscopicity, good sound insulation and low thermal conductivity.

Glass wool retains its properties when exposed to temperatures ranging from -60°C to +450°C.

The strength is higher than that of stone wool, but the fibers are still fragile, so it is better to wear gloves and goggles to work with it.

Cotton wool on basalt fiber is made by melting rocks at high temperature (up to 1500°C). The fibers are linked by the addition of special substances, which gives durability. Basalt wool is not deformed, does not react to acid-base environments.

It is produced by processing slag and obtaining vitreous fibers.

Such a heater has a high thermal conductivity and absorbs moisture, reacts to dampness and creates an environment aggressive for metals. It has one advantage - low price.

Linen insulation

It is also worth mentioning the new modern production in the form of linen insulation Hot-Flax. It is pure linen (fiber) without mineral wool impurities, which has a flame retardant treatment and does not support combustion at all.

The oxygen index is 37%, approaching polymeric, self-extinguishing materials.

Bulk

Loose heaters are expanded clay, perlite, vermiculite, which are very resistant to fire and have a flammability class of at least G1 - an oxygen index of at least 30%.

Expanded clay is obtained by firing clay. The granules are heavy, with high thermal conductivity. This non-combustible thermal insulation is of loose type, therefore it is inconvenient to install. However, it is cheap and environmentally friendly. Expanded clay is characterized by the size of fractions. So, an option up to 5 mm is sand, an indicator up to 40 mm is gravel. If large fractions are crushed, then crushed stone is obtained.

Thermal and fire-resistant qualities when using expanded clay are significantly increased. This is especially true for hard-to-reach places where such a heater can simply be poured. Expanded vermiculite is used for walls in low-rise construction. It is resistant to microorganisms, environmentally friendly, but has low moisture resistance.

Perlite is presented in the form of volcanic glass granules. The fraction ranges from 1 to 10 mm. Due to its light weight and the ability to adjust the thickness of the protective layer, it serves as an excellent heat insulator.

In practice, 30 mm of perlite is equivalent in effect to 150 mm of brick. Perlite is applicable for thermal insulation of roofs and walls, can be an alternative brickwork. The disadvantage is that it absorbs moisture well and is fragile.

Cellular types

Cellular non-combustible materials resemble frozen foam in structure. This type of insulation can withstand high temperatures.

Inorganic type insulation with a cellular structure similar to soap suds. The basis is crushed glass, which is mixed with carbohydrate. Foam glass has the following positive characteristics:

• environmentally friendly, durable;
• resistant to fire and temperatures;
• does not absorb moisture and does not pass steam;
• not susceptible to acids, bacteria, fungi, does not attract rodents.

Foam glass can be used in almost any industry - construction, chemical, energy, engineering industries. The only drawback is the high price.

Foam glass has a significant drawback - a lot of weight, which complicates installation.

Polyurethane foam as a non-combustible material has a serious list of qualities:

• when exposed to open fire, it does not emit harmful substances;
• low moisture absorption coefficient (1.5%);
• not afraid of temperature changes and mechanical loads;
• Great for sealing and thermal protection.

This convenient and easy-to-install material is used to isolate saunas, baths and other facilities.

Right choice

The choice is based on the scope of the insulation. So, basalt wool is relevant for insulating roofs, walls, ceilings and facades, as fire protection for ventilation and building structures, pipelines, baths and saunas. Foam glass is an excellent non-combustible chimney insulation, it is appropriate to use it for insulation of roofs, walls, ceilings and fireproof structures.

If there is a desire to insulate an apartment with foam glass, then you need an L-shaped bracket, an anchor that will help fix a layer of blocks on a plastered wall (ceiling). Fiberglass is applicable for insulation of attics, roofs, walls, floors along logs, partitions and floors, saunas and baths, walls behind the batteries of central heating systems.

A little about brands

The most famous manufacturers of non-combustible insulation are companies such as Rockwool, Ursa GEO, TechnoNIKOL, Light Butts.

Thermal insulation of enclosing structures reduces losses through the floor, walls, ceiling and roof of the house in winter, protects from solar radiation in summer. This energy saving method saves fuel and electricity for space heating and cooling. Safety requirements for building materials oblige to use non-combustible insulation. Fire-resistant properties, in addition to its direct purpose, allow the use of thermal insulation to protect buildings from fire.

The fire resistance of the insulation depends on the physical and chemical properties of the feedstock, the degree of its environmental and fire safety. According to the structure, non-combustible thermal insulation is divided into three types: loose, fibrous and cellular. Thermal conductivity, vapor permeability, density and moisture resistance of the material affect the area of ​​\u200b\u200bits use and laying methods. To choose and buy a heater for country cottage, baths on personal plot, garage or exterior walls of a city apartment, you need to match it specifications, cost and applications.

Description of different types

1. Non-combustible bulk insulation:

• Vermiculite is a foamed crushed volcanic rock with a caliber of 0.25 to 8 mm. Basement and attic floor slabs, flat roofs, voids in walls and building blocks. The thermal conductivity of vermiculite is lower than expanded clay, perlite and mineral wool. The insulation can be laid in a thin layer, which eliminates the high cost of the material. Pressed plates are used for insulation from the inside of the room, they have an aesthetic appearance, are easily processed with ordinary tools, and are fastened with self-tapping screws and staples. The disadvantage is the ability of porous vermiculite to absorb moisture; waterproof films are used to protect it.
• Perlite - expanded thermal method shards of volcanic glass. Light backfilling with grains from 1 to 10 mm is used as a non-combustible insulation for floors, walls, pitched roofs. Fractions up to 1.25 mm in the form of sand and powder are added to the solution for facade plaster and screeds on ceilings. Low thermal conductivity, good vapor permeability, fire retardant properties and reasonable price make it possible to use perlite in large quantities for filling the well masonry of external walls. The porous structure easily absorbs and releases moisture, creating a favorable microclimate in the premises. The disadvantage of perlite is fine dusting, which requires protective equipment during the installation of thermal insulation. On the surface of the floor, the bulk material is covered with a thin layer of cement mortar to form a retaining crust.
• Expanded clay - porous clay granules with a durable smooth shell that do not decompose, do not burn or deform. The size of the fractions affects the density and thermal conductivity of the layer. As a light, refractory insulation for the ceiling and wooden floor, coarse gravel with a diameter of 20 mm or more is chosen. A mixture of medium and fine expanded clay from 5 to 20 mm is poured into concrete screed floors and in multi-layer coating flat roof. Porous granules are protected from precipitation by vapor and waterproofing films.

2. Fibrous include non-combustible basalt insulation in the form of stitched mats or glued boards. Mineral wool insulation TechnoNIKOL, Parok, Rockwool, which is made from thin threads of molten volcanic rock, has stable elasticity and low thermal conductivity due to the air-saturated structure. Randomly fastened basalt fibers allow steam and air to pass through, do not retain moisture, do not melt with significant heating and serve as an obstacle to the spread of fire. The fire-retardant characteristics of mineral wool allow the use of insulation in baths, wooden structures of houses, garages and workshops with combustible materials.

Long fibers of glass wool are non-combustible types of thermal insulation. Rolled cloth, mats and plates of the Izover, Knauf and Ursa brands are produced using a technology that excludes the presence of sharp fragments and dust. Glass wool with a reflective foil surface is used as insulation for walls and ceilings in baths, saunas, frame house, metal garage. Eco-friendly material does not decompose, does not mold, fungal microorganisms and rodents do not start in it. Universal mats and rolls with high fire resistance are laid between the wooden rafters of pitched roofs, floor joists and attic floors. Low cost and practicality makes it possible to choose glass wool for insulation of external walls in city apartments.

3. Cellular fire-resistant foam glass insulation has low thermal conductivity, high strength and low density. The foam material does not let water and steam through, does not rot, does not emit harmful substances, and is impregnable for rodents. Foam glass plates are used to insulate the walls and ceilings of basements, facades, plinths, flat roofs and attic floors. The disadvantage of cellular environmentally friendly insulation is the high price, which pays off with a long service life.

Name of insulation	Thermal conductivity, W/m K	Application range, 0 С	Melting point, 0 С	Fire protection efficiency, h
Expanded clay	0,1–0,18	not limited	+1300	1,5
Perlite	0,06–0,11	–200…+900	+980	1,5
Vermiculite	0,048–0,06	–50…+1200	+1350	1,5–4
Foam glass	0,04–0,08	–260…+230	+800	1,5
glass wool	0,03–0,046	–60…+250	+450	1
Basalt wool	0,035–0,039	–70…+600	+700	4

Application methods

Reviews of builders and customers will help you choose and buy non-combustible insulation for a specific house design or for special buildings, such as a bathhouse, garage, workshop. Description of the installation and operation process in various conditions makes it possible to evaluate positive traits and lack of insulation. You can check the fire resistance of the material by observing the skin chimneys, fireplaces, stoves with open combustion of fuel.

Loose insulation is more often used to insulate horizontal floor surfaces, ceilings, and flat roofs. Produce a dry backfill on the vapor barrier from the side of a warm room and cover with a water-repellent film. Expanded clay, perlite and vermiculite are added to cement mortars and screed for insulation of concrete slabs. Loose fire-resistant insulation increases the fire safety of homes frame type and walls with a layer between the brickwork.

Traditional thermal insulation with basalt or glass wool of pitched roofs from the side of a residential attic is performed between the supporting rafters. Laying does not require additional fastening. In the same way, the attic floors between the lags are insulated. Mineral fiber protects against ignition and rapid spread of fire wooden structures Houses. Plates and canvas with a foil surface are glued with metallized tape to create a continuous heat-resistant barrier.

The refractory coating of the house is provided by slabs and foam glass blocks. Fragility during impacts and significant weight somewhat complicates the installation of the cladding on the facades of the building. But the low thermal conductivity and absolute water resistance of the material have found application in basements and basements.

Rates

Popular fire-resistant thermal insulation is sold at optimal prices from the manufacturer:

Name	Size, mm	Price, rub with VAT		The supplier
		cubic meter	roll/pack
Expanded clay fraction	0–5	3625		Trading House AsboCem
	5–10	2250
	10–40	1350
Fraction Vermiculite	0,16–3	8 600		Rosvermiculite
plate	1200x600x20	60 000
Perlite M75/100 fractions	1–10	1390/1440		Rosevroproduct
Fiberglass:
Izover canvas	5000x1200x100		750	Isolux
Izover with foil canvas	12500x1200x50		1 750
Basalt wool:
TechnoNIKOL plate 6 pcs	1200x600x100		600	Isolux
Rockwool plate 5 pcs	1200x600x100		627
Rockwool foil canvas	5000x1000x50		1 170
Foam glass:
Slabs 50–120 thick	600x450		18 500	Foam glass

Superizol

Silicon-calcium plates SUPER ISOL (Super Izol) are designed for thermal insulation of fireplaces, being at the same time the design of its lining (2in1). The boards do not emit dust, are rigid, smooth and easy to assemble. The composition of the product allows it to be processed using traditional carpentry equipment. Made from environmentally friendly natural material— Calcium silicate.

Advantages:

• Refractory classification - class "A1" non-combustible;
• Maximum operating temperature - up to 1000°C
• Made from environmentally friendly natural material (calcium silicate);
• Extremely light weight (sheet 1220x1000x30mm - weight 8kg.);
• Very low thermal conductivity - for 400°C - 0.10W/(m*K);
• Has high resistance carbon monoxide and hydrocarbons;
• Density - 225kg/m³
• Pressure resistance - 2.6 N/mm²
• The ideal choice for efficient insulation of stoves, fireplaces, boilers, electrical wiring and more;
• Ease and simplicity of installation without the need for use additional materials(it is both a heat insulator and a sheathing structure);
• The thickness of the plate can be in the range - 30-100mm;

The material is easily processed with a knife and a carpentry tool.

For installation, heat-resistant mastic and sealant are used. The joints are reinforced with an additional layer of superisol and fastened with self-tapping screws.

Vermicuclite

Vermiculite (from Latin vermiculus - worm), a mineral from the group of hydromicas with a layered structure. After heat treatment in an oven at a temperature of 900 - 1000 degrees, it swells and turns into a durable and very heat-resistant material.

In the presence of a binder, vermiculite of various fractions is pressed under pressure into plates with a thickness of 20 mm or more.

Vermiculite boards, depending on their density, are used as a lining for fireplace and stove inserts, as well as fire protection for walls and air ducts.

Cut with a hacksaw, electric jigsaw and circular electric saw.

Mounting on self-tapping screws and gluing on mastic, as well as installation of self-supporting parts are possible.

Minerite

Minerite slabs consist of approximately 60% cement, 10% cellulose and 20-40% various mineral fillers. Plates do not contain asbestos and quartz. Processed with carpentry tools.

Basalt cardboard

It is made from refractory basalt fiber with the addition of an inorganic binder by filtration precipitation with simultaneous vacuum pre-pressing and subsequent heat treatment (drying). Basalt slabs and cardboard, having the best thermal insulation properties, have a significant limitation on maximum temperature applications, therefore their average, according to the thickness of the product in the lining, working temperature does not exceed 500°C. Cooker data - efficient thermal insulation material. They are used as heat-insulating and thermal compensation material. Easily cut, cut into shapes, glued to inorganic adhesives. When installing, take into account possible linear shrinkage during heating. Use temperature from -260° to + 700°С, short-term - up to +900°С.

• Basalt cardboard is non-combustible and fireproof, flammability groups NG (non-combustible materials).
• Basalt cardboard is moisture resistant.
• Basalt cardboard is resistant to vibration.
• It has low thermal conductivity and low heat capacity.
• Basalt cardboard is chemically resistant to alkalis and acids.
• Resistant to thermal shocks (sudden changes in temperature of hot steam or water).
• Basalt cardboard is easy to install and easy to process, glued with inorganic adhesives. During installation, it must be borne in mind that when heated, it shrinks within small limits.
• It is plastic and flexible. Easy to mount even on curved structures, pipes, etc.
• Basalt cardboard does not rot, is resistant to rodents.
• It has been used in construction for over sixty years.
• The service life of basalt cardboard is more than 50 years.

ceramic fiber

Ceramic fiber, along with glass fiber, quartz fiber and basalt fiber, belongs to inorganic chemical fibers. The main type of ceramic fibers consists of a mixture silicon oxide and aluminum oxide:

Aluminium oxide-Al2O3 - in nature, it is common as alumina, a non-stoichiometric mixture of oxides of aluminum, potassium, sodium, magnesium, etc., colorless crystals insoluble in water.

• chemical properties - amphoteric oxide. Practically insoluble in acids. Dissolves in hot solutions and melts of alkalis, mp 2044°C.
• It is an n-type semiconductor.
• Dielectric constant 9.5 - 10.
• Electrical strength 10 kV/mm.

silicon oxide- silicon oxide (IV) (silicon dioxide, silica) SiO2) - colorless crystals, mp 1713-1728 ° C, have high hardness and strength.

• Silicon dioxide SiO2 is an acidic oxide that does not react with water.
• Chemically resistant to acids, but reacts with hydrofluoric acid and HF gas.

Multi-alumina insulation

In developing

Coaline wool

Mullite-silica wool (kaolin wool) is an effective heat-insulating material (from a number of refractory materials), which is used as a heat-insulating and thermal compensation material, as well as for the manufacture of plates, paper, various molded products, etc. Technical cotton wool has the form of a cloth twisted into a roll. Chromium oxides can be added to increase the application temperature. The fibers are resistant to temperature in oxidizing and neutral environments.

In a reducing environment, thermal insulation properties are reduced. The material is resistant to vibration and deformation, has good sound insulation.

Advantages:

• low thermal conductivity and low heat accumulation with low fibrous material weight
• resistance to non-ferrous metal melts
• the fiber is not wetted by liquid aluminum, zinc, magnesium and their alloys
• resistance to vibrations and deformations
• thermal shock resistance
• reducing the material consumption of the structure
• high electrical insulation performance, little changing with increasing temperature up to 700-800°C
• resistance to alkalis (except concentrated ones), as well as to most other chemicals
• inertness to water, oils.

Main technical characteristics:

• Unit rev. MKRR - 130
• Application temperature 0С - 1150
• Apparent density kg/m3 -130
• Thermal conductivity at 6000C W/m*K - 0.16
• Heat capacity at 10000C J - 1.047
• Loss on ignition % - 0.6

Chemical composition:

• AL2O3 - 51-55%
• SiO2 - 42-46%

Standard sizes:

• length 5000-10000 mm
• width 600 mm
• thickness 20 mm

LSU

Magnesium glass sheet, magnelite is made on the basis of wood (finely dispersed) shavings up to (15%), magnesium oxide (40%), magnesium chloride (35%), perlite (5%), fiberglass mesh (1%) and binder composite materials (4%) , by gelatinizing the magnesite mixture. The stable magnesium colloid is glued with a bonding fiberglass mesh and filled with a light filler. Received as a result of a special technological process the material has high strength, hardness, light enough. And such properties of LSU-Premium as: water resistance, incombustibility, corrosion resistance and plasticity are much superior to similar properties of such known materials like drywall, fiberboard, chipboard, plywood, etc.

Properties:

fire resistance

Refractory properties of LSU are classified in the NG (non-combustible) category and are confirmed by certificates GB/T19001-2000 - ISO9001:2000. Testing confirmed that the fire resistance level of glass-magnesium composite panels reaches the level of GB8624-1997A. High fire resistance prevents ignition and spread of fire during a fire. The material has been assigned class A (according to non-combustibility of materials). With a sheet thickness of 6 mm, it holds fire for up to 3 hours, withstands heating up to 1200 ° C

Waterproof

LSU has a high degree of water resistance, which prevents swelling and deformation of the material under prolonged exposure to water. Within one month, a sample of the material was immersed in water, after which test measurements were taken. The material is moisture resistant, resistant to moisture and mold fungi.

Strength

LSU is characterized by high strength, as a result of which the material is not subject to deformation under any external influence.

Plastic

LSU has high ductility (flexibility). Thanks to the reinforcing fiberglass mesh, Magnelite can bend with a radius of curvature of up to 3 meters, which allows it to be used on curved surfaces and reduces the likelihood of fracture during installation and transfer.

Sound and heat insulation

LSU (glass-magnesium sheet) has excellent sound and heat insulation. With rather low thermal conductivity (0.21 W / m ° C) and sound transmission (44 dB), magnelite, coupled with modern insulating materials, can be successfully used as a material for exterior finish facades, with the possibility of applying various decorative coatings. Sound absorption of 95mm magnelite wall is similar to existing standard -150mm Brick wall or 123mm wall of four layers of 12mm GVL.

Environmental friendliness

Environmentally friendly glass-magnesium sheets do not contain harmful toxic substances (such as asbestos, phenols, adhesives, resins, etc.). LSU is odorless and does not emit harmful toxic substances even when heated. In the manufacture of the material, only environmentally friendly components are used. The material is not subject to erosion.

Durability

LSU service life (glass-magnesium sheet) - up to 50 years.

magnesite

Magnesite is a common mineral, magnesium carbonate MgCO 3 . It is used for the production of refractory bricks.

• Hardness - 4 - 4.5
• Density - 2.97 - 3.10 g / cm 3

Basfiber

The trademark under which basalt fiber is produced is a thin heat-insulating fabric made from basalt rocks. Basalt fibers have good temperature resistance, excellent heat and sound insulation properties, vibration resistance, and durability.

Properties:

• Application temperature — From -260°C to +560°C
• Short exposure — Up to +700°C
• Thermal conductivity - 0.031-0.038 W / (m. °K)

Application area:

• Laying between a beam (log) during the construction of wooden buildings, baths, saunas.
• Thermal insulation of floors during the passage of sandwich chimneys.
• Thermal insulation of walls, floors and ceilings by stuffing with basalt wool.

GVLv

Gypsum fiber sheet is moisture resistant.

Designed for use in residential, administrative, public and industrial buildings:

all degrees of fire resistance, including I degree;

all classes of constructive fire hazard, including class C0;

all classes of functional fire hazard, including class F1;

any constructive systems and types;

any level of responsibility, including increased;

different number of storeys;

regardless of the climatic and engineering-geological conditions of construction.

Rockwool

A series of insulating materials under the same name brand. The most commonly used material for fire protection FT Barrier.

Properties:

• Density - 110 kg / m 3
• Thermal conductivity -
  • λ 10 \u003d 0.036 W / (m K)
  • λ 25 \u003d 0.038 W / (m K)
  • λ 125 = 0.050 W/(m K)
  • λ 300 \u003d 0.090 W / (m K)
  • λ A \u003d 0.040 W / (m K)
  • λ B = 0.042 W / (m K)
• Combustibility group - NG
• Compressive strength at 10% deformation, not less than - 20 kPa
• Ultimate tensile strength of layers, not less than — 7.5 kPa
• Water absorption at full immersion, no more than - 1.5% by volume
• Water vapor permeability, not less — μ = 0.30 mg/(m h Pa)
• Acidity module, not less than — 2.0

Parok

Paroc stone wool is made from molten basalt rock heated to a melting point of around 1500°C. The binder makes up only a small percentage of its composition. Thanks to this, the fibers of the resulting cotton wool can withstand very high temperatures, up to 1000 ° C. ISO 834 tests on the reaction of various materials when exposed to a fire flame according to the EN 1363 standard fire curve confirm this. Therefore, in accordance with NPB 244-97 stone wool manufactured by Paroc is classified as non-flammable (NG).

The above properties of the Paroc material allow it to be used in building structures with high requirements for their fire resistance, and, moreover, as their fire protection. At the same time, insulation completely lacks the so-called side effects: - smoke formation, release of toxic substances, etc.

Foam glass

Foam glass(foamed glass, cellular glass) - heat-insulating material, which is a foamed glass mass. For the manufacture of foam glass, the ability of silicate glasses to soften and (in the presence of a blowing agent) to foam at temperatures of about 1000 ° C is used. As the viscosity increases when the foamed glass mass is cooled to room temperature the resulting foam acquires significant mechanical strength.

Foam glass produced in the form of blocks and granules. Density of foam glass - 120-200 kg/m. cube Sorption humidity of foam glass - 0.2-0.5%, at f=97% Thermal conductivity of foam glass - 0.04-0.08 W/(m K) (at +10°C) Vapor permeability of foam glass - 0-0.005 mg/ (m.h.Pa) Compressive strength limit - 0.7-4 MPa Bending strength limit - 0.4-0.6 MPa Foam glass deformation start temperature - 450°C Foam glass water absorption 0-5% by volume. Noise absorption: up to 56 dB Effective temperature range: from? 200 ° C to + 500 ° C.