DSP board: technical characteristics, description, prices, reviews. Universal finishing material - DSP board
Cement particle board (DSP) can be very useful in construction and repair, being used quite often for finishing and flooring of frame structures. Such material is a leader in many respects on the modern market.
It will be a very advantageous option when used in conventional living rooms and public areas, but especially where the humidity level is constantly higher than normal: in bathrooms, showers, kitchens, swimming pools.
Such slabs can also be irreplaceable when arranging facades, paved paths; as a thermal and sound insulator; for the construction of window sills, canopies and other similar designs.
DSP board– a multicomponent material produced in a factory by pressing and subsequent fermentation. A mixture of various materials is used as components of the composition:
- Portland cement is the main one, containing about 65% of the total volume;
- wood shavings are the second most important component (24%);
- During manufacturing, various minerals are also added as binders;
- other chemical ingredients and water.
The composite material ultimately takes the form of sheets of various sizes that meet government standards. The resulting building element, which has been relevant for a number of decades, has quite a lot of positive properties. Let's list the most important of them.
1. Multifunctionality. The use of slabs is multifaceted: they are perfect for decorating premises for various purposes; there are special slabs for flooring; DSP is widely used for the construction internal partitions rooms.
2. Environmental friendliness. The boards contain only safe substances. The release of harmful vapors and elements into the atmosphere during production is completely eliminated.
3. Big choice material parameters. Dimensions of the CBPB board are widely represented in the assortment. Modules of 3200x1250 mm are considered standard. But significant deviations are allowed depending on the thickness of the sheets, which can be from 8 mm and much higher. If the last parameter is large, it is also possible to change the length and width upward.
4. All products have a quality passport, certificates and comply with GOST. Therefore, purchasing products from major manufacturer, there is no doubt about its quality.
6. Durability. With external similarity to wooden structures, the material is more reliable. Therefore, most often, it is preferable to wood. This indicator is ensured by a three-layer structure. The outer layers, located on both sides, consist of small chips. The internal contents contain stronger formations.
Here you should also add the smoothness of the material, its resistance to moisture, ease of installation and affordable prices, possibility of operation in difficult conditions. A separate disadvantage can be considered the short service life in a particularly aggressive environment. But it is also about one and a half decades. However, having created additional protection, it is possible to significantly extend the quality life of the material.
Kinds
There are three types of DSP. Studies of the material have accurately shown that each of them does not lose its valuable properties even during multiple cycles of significant temperature increases and subsequent defrosting.
Resistance to fire and especially humid environment, negative biological factors. But each type of slab has its own characteristics, consisting in the production method, the difference in source materials, characteristics finished products and scope of application. Among the types you can indicate.
1. Fiberboard. It is based on the so-called wood wool, which is long-fiber shavings. The composition also includes inorganic binders.
Wood strips produced on special machines are impregnated with solutions of calcium chloride and liquid glass. The raw materials are pressed into molds and subsequently dried. The thickness of such slabs can reach 150 mm, but there are a number of much thinner parameters.
These building elements, with their considerable strength, are excellent for thermal insulation. A similar material is also used as an acoustic material.
It is easy to process and soft, for this reason it is in demand for multifaceted repairs, as well as reconstruction work of various structures. During construction operations with slabs, due to their low weight, lifting equipment is not required, and therefore their use is very economical.
2. Wood concrete. It is classified as lightweight concrete and contains small shavings, sawdust, reed chaff or rice straw. Most quality slabs This variety is made from wood chips.
If the basis of the composition is wood shavings, then the material is usually called wood concrete, if sawdust - sawdust concrete. The two types mentioned have slightly reduced performance characteristics compared to the first one mentioned above.
They are heavier, denser and subject to unpleasant deformations, but they are also somewhat cheaper. The scope of application of wood concrete is quite wide. But mainly it is in demand as a material for low-rise private construction, especially popular in the manufacture of wall partitions, also for finishing and thermal insulation.
3. Xylolite is most often known in application as a coating. DSP for flooring. Plates, similar to those previously described, are made from wood waste, differing from other types in production technology. On sale, the presented assortment pleases with a variety of colors.
The material is distinguished by excellent thermal insulation qualities and increased strength. It does not burn in an open fire, but only gradually chars; even when boiling, it does not get wet in water and is only slightly thermally conductive; It has enviable elasticity and is hard like stone, but at the same time it is easily processed like wood: drilled, planed and sawed. In addition to the above, it is ideal for use as cladding for stone, covering stairs, window sills, and roofs.
An important characteristic is weight of the CBPB board. Such indicators are simply necessary to know during construction and other work. The specified data is very useful in transporting cargo and at the time installation work. The mass of one module directly depends on the thickness and, knowing this indicator, it is easy to calculate. After all, for every 10 mm there is approximately 54 kg of tile weight.
Application
Using slabs to cover the floor is extremely convenient. To acquire an aesthetic appearance, there is no need for subsequent finishing. Their surface is easily treated with paint of a special composition.
It is also possible to use water-repellent dyes or regular ones. Such panels look advantageous against the backdrop of any interior, without disturbing the aesthetics, satisfying even the most picky and demanding taste.
Of course, there is a chance to enjoy the excellent quality of the installed slabs only after best installation carried out according to all the rules. If the modules are carelessly secured and poorly processed, this will significantly reduce not only the appearance of the overall structure, but also the service life DSP.
But use of slabs in the process of finishing the walls and floors of various rooms in the right way, it gives an excellent result as a result of practical use. In addition, if necessary, it provides almost perfect thermal insulation and very durable coating.
Laying on the floor is done by screwing it to the sheathing using self-tapping screws with a countersunk head. During installation, everything depends on the material of the array. If it is steel, then the screws are screwed in by 10 mm, but if it is wood, they should go into the base of the beam by 20 mm.
It should be remembered that despite its remarkable properties, the basis of the material is wood. This means that the slabs, albeit slightly, have the ability to expand under the influence of moisture. Therefore, when finishing with DSP boards the presence of an expansion joint is often necessary. This is mandatory:
- next to walls, thresholds, columns and others vertical structures;
- if you plan to change the type and thickness of the floor;
- in case of a large coverage area.
These slabs play an important role in creating formwork. Moreover, in this and other cases, the choice of this particular material will entail many advantages: it will help to build reliable design, in a short time and with absolutely minimal costs.
In this case, additional cladding will not be required here, since the structure will already have a completely finished, certainly attractive appearance and high-quality characteristics. For the reasons listed above, such slabs are in great demand.
And when choosing the required thickness of the modules, it is better to obtain preliminary special consultation. It can be clarified that when finishing the floor optimal indicator fluctuates around 30 mm.
It is recommended to use special DSP slabs for facade. This material is in in this capacity externally it looks extremely profitable. For best protection It is better to choose external coating modules of the maximum possible thickness.
This will protect the overall structure of the structure, as well as the foundation, from negative external factors: strong winds, heavy rains and other things. Advantage of application DSP facade slabs is the possibility of further painting in any desired color, while the surface will appear as smooth as possible, which is very suitable for varied and original design solutions.
At the same time, the combination of contrasting colors looks extremely advantageous. color ranges so that the walls and roof of the house are different colors which will provide wonderful results.
They look especially attractive, even stylish, when used for finishing and creating an additional barrier of protection between the internal elements of the building and the external sphere DSP boards for brick or stone.
They differ from other types in their composition, built exclusively from the smallest particles of raw materials. Such sheets are in undoubted consumer demand.
Their convenience in the absence of the need for subsequent processing with paints and other special compounds. That is, immediately after release they are ready for installation, and therefore are considered a popular finishing material.
Price
Low cost The material does not affect its quality characteristics, which is ideal for solving many construction problems. Moreover, tile production technology is regularly improved and tries to adapt to complex and sophisticated consumer needs.
For example, the range has recently been updated with ultra-thin slabs, the thickness of which reaches 4 mm. The advantage of this type of product is that there is no need to use grinding machines to process such slabs, which undoubtedly affects the cost of the product offered.
A brand that is gaining particular fame in Lately, is "Tamak". The company produces finishing materials that are of great interest to the market. CSP boards are available in a variety of sheet sizes with thicknesses starting from 8 mm.
When choosing similar material individual characteristics must become the object close attention. Among important indicators: size parameters, properties, composition. At normal humidity, according to existing standards:
- the slab should swell by less than 2% of the total volume of the material;
- the ability to absorb water cannot exceed 16%;
- density should not be more than 1300 kg/m2;
- The roughness of the panel for plates processed by grinding must be 80 microns.
Retail prices of CBPB boards are invariably dependent on leaf sizes. average cost material:
- with a thickness of 10 mm it averages about 950 rubles;
- if the thickness is doubled – 1,700 rubles;
- three times - from 2000 rudders and above.
When purchasing material, it should be borne in mind that prices for wholesale buyers are undoubtedly significantly reduced.
When planning to build a large private house several floors high, it is better to choose the thickest possible slabs when purchasing in order to subsequently achieve stability and strength in the structure.
Of course, such sheets will cost much more. As a rule, slabs that go on sale come in the most simple colors, intended for further coloring, according to the choice of the desired shade.
But from an aesthetic point of view, it is better to choose samples with a decorative coating; paint adheres better to them, and color options are purely individual and have no repetitions.
Slab products modern market provides enough. However, DSP boards are recommended by experts as among the best, having wide application at any stage of construction. At the same time, only rare building materials can compete with them in quality.
Among the slab and sheet materials used for finishing and constructing partitions and various design elements, one cannot ignore cement-bonded particle board or cement-bonded particleboard. Of course, in terms of popularity it is inferior to drywall, but, as practice shows, it also has a place in the modern world. More often DSP plate used by builders as formwork. It is smooth, with good strength, plus - with its help, it is much faster to assemble formwork than from boards.
Many may doubt that the use of DSP is advisable for the construction of formwork. After all, it can be replaced, for example, by metal or plywood, which are also used. This is probably true, but a slab with a thickness of 24-26 mm can withstand quite serious loads. In addition, if you install permanent formwork using cement-bonded bonding material, then, in fact, you will get a finished foundation or other structural element building. And this is a big plus in many situations.
In addition, it is necessary to take into account the conditions under which the room being finished will be used. For example, if this is a gym, then there can be no talk of any drywall. He just can't withstand the ball's impact. And the DSP boards will hold up. They can be used for strapping and cladding frame houses. Today you cannot find better material for this value. The advantage is the ability not only to paint cement-bonded bonding material, but also use it as a finishing touch. Fortunately, manufacturers today offer a huge assortment with design to suit different materials, as shown in the photo above.
DSP production technology
From the name itself it becomes clear that the main components of this material are cement (65%) and wood shavings (24%). All this is mixed with water (8.5%), and various additives are added to the resulting mixture that improve specifications slabs (2.5%).
In the process of producing CBPB, two types of particle boards are used. They differ in size: small and medium. The plate itself has three-layer structure, so shavings are poured into the second layer average size, and in the first and third it is small. Myself manufacturing process takes place in the following sequence.
- The shavings are mixed with hydration additives.
- Cement grade M500 is added to the resulting mixture.
- Water is pouring in.
- The solution is thoroughly mixed until a homogeneous mass is obtained.
- The first layer of fine chips is poured into the mold.
- The second layer with medium-sized shavings.
- And the third layer.
- Pressing is in progress.
- After which the semi-finished material is heated to +90C for eight hours.
- Then it is dried under natural conditions for 13-15 days.
- After which, depending on the batch, it is either polished or simply stored.
Specifications
What is it durable material, understandable, because it contains a cement component. But it is also moisture resistant due to the use of hydration components. Plus, DSP boards have excellent bearing capacity, which cannot be said about gypsum board or plywood. But a lot will depend on the parameters of the stove.
As for the width, it is standard - 1.2 m. But the thickness and length are dimensions that vary quite wide range. As for the length, the manufacturer can cut it to any size if the order batch is large. But there are also standard values: 2.7; 3.0; 3.2 and 3.6 m.
As for thickness, there is a fairly decent range here too: from 8 to 40 mm. Accordingly, the weight of the product will increase with increasing thickness. For example, a slab 2.7 m long and 8 mm thick weighs 35 kg. With a thickness of 40 mm, the weight will increase to 176 kg.
With a DSP length of 3.2 m and a thickness of 8 mm, its weight will be 41 kg. With the same length and thickness of 24 mm, the weight will be 124 kg.
There are no rounded edges or chamfers in the design of the DSP boards. The edges are straight and cleanly cut, so there shouldn't be any problems with joining panels and fitting. They do not need to be treated with antiseptic compounds before finishing, because during the manufacturing process an antiseptic is added to the raw solution.
Other technical characteristics according to GOST:
- Withstands large subzero temperatures. In this case, the defrosting process can occur up to 50 times. After which the strength of the slabs decreases by only 10%.
- The error on the outer plane is 0.8 mm.
- The difference in the lengths of the diagonals can be 0.2%. This is practically no more than 5 mm for a length of 2.7 m.
- Thickness error (permissible) is no more than 0.8 mm. This is for unsanded material, for sanded material 0.3 mm.
- Water absorption is 16%, while per day at high humidity the slab should not increase in size by more than 2%.
- Withstand tensile loads - 0.4 MPa, bending loads 9-12 MPa, depending on the thickness of the product. The thicker it is, the less it can withstand bending loads.
Manufacturers today offer two types of cement-bonded particle board material, which differ from each other quality characteristics. These are TsSP-1 and TsSP-2. The first one is better.
There is an opinion that slabs of this type are inferior to plasterboard in many respects. You should not compare these two materials, they have different purposes and different areas of application. The examples described above confirm this. Of course, DSP has its drawbacks, which we’ll talk about.
- Compared to plasterboard, cement-bonded particle boards cost almost twice as much. But gypsum board cannot be used for exterior decoration, and even sheathed with it frame house It's better not worth it.
- The weight of each slab can be terrifying, especially those with a thickness of more than 16 mm. You won't be able to work with them alone. Under them you will have to build a strong and reliable frame. And the foundation will have to be strengthened if they are used to cover a frame structure.
- In addition, the cement component gives the material increased strength, so it is difficult to process. Therefore, pruning should be done with a grinder or manual circular saw, but it’s not easy to use cutting tool, but diamond.
- The frame has already been mentioned, but it must be added that profiles for plasterboard are not suitable here, especially if we are talking about external finishing with DSP boards. A standard steel profile is required here.
- When cutting slabs, a large amount of dust is released, so this operation should only be performed outdoors.
CSP is a product for a wide range of construction purposes, which is based on two different components: cement, which is of mineral origin, and wood shavings, a natural organic raw material.
The slabs combine the advantages of concrete and fiberboard products, demonstrate greater strength and absolute environmental safety.
Manufacturing process
DSP panels are made in several stages, the most important of which is the stage of raw material preparation. The composition of the composite product includes the following components:
- cement, reaching 65%;
- wood shavings equal to 24%.
To effectively envelop two types of components, hydration and binding fillers are introduced in an amount of approximately 2%. The entire working mixture is wetted with water, mass fraction which should not exceed 9%.
Preparation of raw materials
At the raw material preparation stage, the chips are crushed and scattered into two fractions. Pieces with smaller dimensions during the manufacture of CBPB slabs will be located in the outer layers, with larger parameters - in the inner core of the slab.
To ensure the safety of wood raw materials for a long time, it is impregnated with solutions of aluminum salts and liquid glass. The treatment ensures the resistance of the chips to biological contamination and increases the strength of the fibers, which perform a reinforcing function in the composite.
Mixture preparation and pressing
At the next stage, the shavings, additive solution and cement must be combined and thoroughly mixed, achieving a completely homogeneous mass. This can only be done using special mixers. high power, adjustable rotation intensity. Wood pieces are not very well coated with cement mineral powder, so sometimes a small portion of fuel oil and industrial (technical) oil is added to the mixture.
Once absolute homogeneity is achieved, the mixture is placed layer by layer into pallets, which are stacked on top of each other and placed under a press. After exposure to high pressure, the compressed cement-bonded particle mass, fixed in the molds with latches, is moved to thermal chambers, where heating is carried out during one work shift.
Then the molds are removed from the chamber and returned to the press, where the locking clamps are removed. To complete the acquisition of all operational characteristics, the formed CBPB sheets are transferred to warehouses, where they are kept for 2 weeks, periodically drying with an air flow heated to 100 °C.
At the final stage, the slabs are formatted according to size, packaged, and sent to the finished product storage area.
Sheet sizes
The national standard regulates the division of the material into 2 groups according to general physical and mechanical parameters and dimensions of CBPB boards. The length of the products is 3.2 and 3.6 m. In the first group, fluctuations in the parameter in one direction or another by 3 mm are allowed, in the second group - by 5 mm.
Standard width values are 1.2 and 1.25 m, the trend in permissible fluctuations in the parameter is the same. Errors in the geometric parameters of products of the 2nd group are always greater.
The thickness of the sheets varies:
- in one category it reaches 10 mm with a minimum of 8 mm;
- in another – 16 with a minimum of 12 mm;
- in the third – 28 with a minimum of 18 mm;
- in the fourth – 40 with a minimum range of 30 mm.
The thickness variations allowed by the standard vary from 0.6 to 1.4 mm in the first group of DSP boards and from 0.8 to 1.6 mm in the second group.
The regulations stipulate strict perpendicularity of the intersecting sides of the slabs, standardized diagonal sizes, limited deviation from the plane, equal to a maximum of 0.8 mm for the 1st group, and a maximum of 1 mm for the second.
The standard specifies the number of flaws the presence of which is acceptable. The possibility of chips on CBPB boards is completely excluded, and the number of possible stains of any origin and dents is strictly regulated. The requirements for products designated TsSP-1 are more stringent than for products TsSP-2. Delaminations, foreign inclusions, and mechanical defects are completely excluded for the entire line of materials.
physical characteristics
To assess the operational capabilities of DSP sheets, physical parameters are of decisive importance.
Weight
You can plan transportation and installation conditions by knowing the weight of the chipboard, which is determined by the size and density of the products. The minimum specific gravity of cement particle boards is 1100 kg/m 3, the maximum is 300 units more.
As an example: one sheet with a density of 1300 kg/m3 and dimensions of 2700 x 1250 x 10 weighs almost 44 kg (43.88).
From this the obvious conclusion is that the material is very heavy. One cubic meter of panels will weigh almost one and a half tons. The buyer must make careful preparations for the delivery and subsequent use of panels of this weight.
Humidity
The normalized humidity of CBPB is 9%; the standard legalizes fluctuations in the value by a third in the direction of increase or decrease. The rather large magnitude of possible deviations is apparently due to the structural features of the composite.
During control tests, CBPB products can increase in thickness by 2% per day, which occurs due to the absorption of moisture in an amount that can be 16% of the original weight of the sheet. This factor must be taken into account when storing slabs and installing them on the front of the house, outside industrial buildings.
Strength
The presence of wood fibers in the composite made it possible to give the material good strength properties. Thus, the maximum strength under bending loads for the thickest sheet is 12 MPa, for the thinnest - 7 MPa. If tensile forces estimated at 0.35 MPa are applied to the slab, it will not undergo changes. Since the strength of CBPB boards is higher than that of plywood, they are actively used for the construction of formwork.
The standard normalizes the permissible surface roughness, which for sanded panels is 4 times less than for unsanded ones. For the manufacture of formwork, it is quite possible to purchase slabs that have not been sanded. The finishing of facades can be made beautiful either with the help of polished products or by installing roughened DSP boards that have undergone additional decorative processing.
Fire safety
From chemical composition And technological features production, it logically follows that DSP panels are highly resistant to ignition and have a minimal tendency, almost zero, to spread flame. In the case of strong heating of the cement-bonded particle material, there is a negligible possibility of the formation of gases and smoke during combustion. At the same time, the toxicity of the released thermal oxidation products is very low.
Note! It is safe to say that DSP boards are a fireproof material.
Wood shavings by themselves burn wonderfully, but as part of a composite they are soaked through mineral means, surrounded by particles of Portland cement, which reduces fire danger to zero. The flammability of DSP panels, in accordance with the generally accepted classification, is designated as G1.
Frost resistance
One of important characteristics DSP boards – frost resistance. The ability of panels made from a mixture of cement and wood chips to withstand frost is impressive. Even if the finish undergoes defrosting and then freezing 50 times during the winter (although such frequent temperature changes occur extremely rarely), the strength of the coating will decrease by only 10%. DSP plates can be used outdoors without problems for half a century.
Types of DSP
The production of CBPB boards in Russia has been carried out in industry for about thirty years. During this time, domestic and foreign technologies have changed, which has led to the appearance on the market of new similar materials, for example, such as:
- fiberboard;
- wood concrete;
- xylolite.
The composition of fiberboard includes cement and wood fibers so fine that they are called wool. The material is soft to the touch, insulates sound well, is highly durable and resistant to cracking.
Wood concrete is a mixed composite consisting of cement and wood chips, shavings, pieces of reed stems and rice straw. The material is not very durable, suitable for the construction of light partitions. Unlike a DSP board, which is quite suitable for flooring, wood concrete will not withstand such a load.
A special feature of xylolite is its increased resistance to water, achieved through the introduction of Sorel cement into the composite mass. Xylolite panels can be laid on the floor, laid on the roof, placed in any places where exposure to large quantities water.
Features of application
Cement particle boards can be laid on floors, installed as partitions or main walls, sheathed house frames, and finished part of the walls above the foundation (basement). It is known to use a DSP board for flooring instead of cement screed. The material copes well with the load and also provides thermal insulation.
Installation of slabs
Galvanized screw-shaped nails are suitable for fastening structures; when choosing the length, you should take into account the thickness of the sheet and the total dimensions of the pie. You can also use self-tapping screws, for which holes are pre-prepared.
Due to the large mass of the panels, special attention should be paid to observing the recommended distances between fasteners. To do this, it is advisable to use special tables, which are compiled taking into account the thickness of the sheet and the location of the fastening.
In addition to fixing along the perimeter, intermediate fastenings must be made on the tile, usually located in the middle part of the height. In the intervals, the DSP can be fixed half as often as along the edge lines.
The plates can be formatted using conventional high-quality tools designed for working with materials of great hardness.
External finishing of slabs
It is not worth sanding the surface layer, because this may lead to an increased tendency to absorb moisture. When joining wall structures, there may be a need to level the height, which is somewhat more difficult to do than when working, for example, with brick. In such situations, it is permissible to use any grinding machine, the main thing is that the grain size matches up to No. 25, then damage to the structure will not occur.
For the finishing registration of the DSP surfaces are usually plastered and painted. This reduces their ability to absorb moisture. The material lasts longer and does not crumble.
Joints
When working with DSP, it is important to leave sufficient distance at the joints, which should be at least 4 mm indoors and 8 mm outdoors. If this requirement is ignored, cracking of the seam joints may occur. A fairly large space is covered with elastic plastic or sealant.
External joints are sometimes decorated with slats or profiles made of aluminum alloys; a special elastic cord can be laid inside at the joints.
During the construction of private housing construction, customers who want to provide the building with maximum fire safety, choose a project option with the production of SIP panels from DSP sheets. In this case, an inorganic insulation of mineral origin is laid between two layers made of a mixture of cement and shavings. The resulting design demonstrates strength, environmental friendliness, and fire safety.
IN modern construction and finishing work, the term DSP is often used. The abbreviation stands for cement bonded particle board, and it is one of the popular and high-quality building materials.
Thanks to innovative manufacturing technology, CBPB boards have unique characteristics that are noticeably higher than those of their wood-fiber counterparts, plasterboard and plywood. Let's consider key benefits this building material.
Main technical characteristics
Cement-bonded particle boards are made from crushed wood chips and cement, adding substances to the composition that completely eliminate the conflict of materials. The raw materials are laid one by one, forming a multi-layer sheet with special properties, which is formed by a hydraulic press.
As a result, DSPs have the following characteristics:
Sound insulation indicators - up to 45 dB.
The change in standard sizes during prolonged exposure to a humid environment is no more than 0.3-2%.
Bending and tensile strength - 2,500-3,000 MPa, respectively.
Fire safety - class G1 (low-flammable materials).
The average service life is up to 50 years.
It is worth noting that DSP boards are resistant to temperature changes, are easy to process and are not susceptible to mold formation. Disadvantages include dependence on humidity environment: if the material is in contact with water for a long time, the service life is reduced to 15 years.
Is it burning or not?
The combustibility of a material is one of the key issues of interest to builders and finishers. Considering that the composition includes wood, cement particle boards can catch fire, however, this requires prolonged exposure to high temperatures.
When you are in a completely blazing house, the DSP needs contact the fire for at least an hour before it ignites. In addition, the material does not contain active chemical components, so even in the event of a fire, there is no risk of poisoning from combustion products.
Composition of the CBPB board
When producing cement-bonded particle boards, manufacturers are guided by GOST standards that are used for this type of building materials. In particular, the following ratio of components included in the finished product is used:
Portland cement - no less than 58%.
Additional impurities - 2.5%.
Crushed wood shavings - at least 30%.
It needs to be clarified that percentage the raw materials used must be indicated on the packaging. Here are the data recommended by GOST, which may differ slightly for the products of some manufacturers. However, when choosing a material, you need to focus on the given values: this is the key to the quality and strength of CBPB boards.
Application
The main area of use of this material is to increase the thermal insulation properties and sound insulation of premises. Therefore, the material is often used in private residential buildings and in the construction of commercial and industrial facilities.
Cement bonded particle boards are optimally suited for interior and exterior finishing walls, preparing the floor for finishing. In addition, the material is often used for arranging interior partitions.
Regardless of the scope of application, DSPs are guaranteed to withstand the service life declared by the manufacturer, which is about 50 years!
Standard sizes
As already mentioned, CBPB slabs are manufactured in strict accordance with GOST standards, and accordingly have strictly defined external parameters. If we talk about standards, the following sizes apply here:
Sheet length - 2,700/3,200/3,600 mm.
Width - 1,200-1,250 mm.
Thickness - 8-36 mm.
It is necessary to clarify that this data is relevant only for products domestic producers. In European construction market other standards apply.
Sheet weight
In the table above, the data is shown in a separate column. The weight of the sheet directly depends on two fundamental factors: thickness and area of the product. At the same time, the length and width of the sheet are usually standard; only the thickness changes, which largely determines performance characteristics and scope. Let's look at the change in the weight of a standard sheet (3,200 * 1,250 mm) depending on the thickness. It looks like this:
Thickness 10 mm - weight 54 kg.
12 mm - 64.8 kg.
16 mm - 80 kg.
20 mm - 108 kg.
The weight of the densest sheets can reach up to 194 kg, however, such material is very inconvenient for independent work. For cladding walls and arranging interior partitions, sheets are usually used, thickness 16-20 mm.
How to cut this material
It’s worth clarifying right away that it is better to cut cement particle boards in production shops: the work is very dusty and requires a special tool for an even cut. At home, you can use the following devices:
The working surface of the tool must be made of carbide materials, rotation speed circular saws: no more than 200 rpm.
To minimize room contamination and reduce the amount of dust, it is recommended to spray the surface of the material being cut with water and prepare a vacuum cleaner to suck up fine particles.
List of verified manufacturers
On the Russian market, there are several proven companies producing high-quality products that meet GOST standards. When choosing a DSP, you can pay attention to the following manufacturers:
CJSC "TAMAK". The company is located in the Tambov region, producing cement-bonded particle boards in accordance with domestic and European standards (EN 634-2). The products are solid monolithic sheets without the slightest defects.
LLC "TsSP-Svir". The company operates in the Leningrad region, filling the market with quality products. Character traits finished sheets: polished or calibrated surface of light gray color. The production uses German equipment, which ensures the production of CBPB boards in accordance with Russian and European standards.
JSC "MIT". The company's production line is located in Kostroma region. The finished sheets have a clear geometry and correspond Russian standards quality, sold in an affordable price segment.
LLC "Stropan". The company operates in the Omsk region. The main characteristics of the finished sheets look like this: thickness from 10 to 36 mm while maintaining standard dimensions, elasticity of the material - 3,000 MPa, excellent thermal conductivity and sound insulation.
LLC "ZSK". The company is located in the city of Sterlitamak, Republic of Bashkortostan. The manufactured products have standard sizes corresponding to GOST, and are resistant to aggressive environmental influences and temperature changes.
It is important to clarify that everything Russian companies for the production of cement particle boards, they work on equipment from Western manufacturers. This helps to produce high-quality products at reasonable prices.
Useful to know during installation
It must be remembered that you need to work with cement particle boards very carefully: big square the sheet makes it fragile, so installation is carried out by at least two people.
In addition, CBPB boards are not laid closely; expansion joints must remain. The material contains wood, which tends to expand under the influence of a humid environment. Given this feature, it is not recommended to fill joints with putty. It is better to use a sealant that will not interfere with the expansion of the DSP boards.
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Weight 1 m 3, kg |
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|---|---|---|---|---|---|---|---|
| length | width | thickness | |||||
| 2700 | 1250 | 8 | 36,45 | 3,375 | 0,0270 | 37,04 | 1300-1400 |
| 10 | 45,56 | 0,0338 | 29,63 | ||||
| 12 | 54,68 | 0,0405 | 24,69 | ||||
| 16 | 72,90 | 0,0540 | 18,52 | ||||
| 20 | 91,13 | 0,0675 | 14,81 | ||||
| 24 | 109,35 | 0,0810 | 12,53 | ||||
| 36 | 164,03 | 0,1215 | 8,23 | ||||
| 3200 | 1250 | 8 | 43,20 | 4,000 | 0,0320 | 31,25 | 1300-1400 |
| 10 | 54,00 | 0,0400 | 25,00 | ||||
| 12 | 64,80 | 0,0480 | 20,83 | ||||
| 16 | 86,40 | 0,0640 | 15,63 | ||||
| 20 | 108,00 | 0,0800 | 12,50 | ||||
| 24 | 129,60 | 0,0960 | 10,42 | ||||
| 36 | 194,40 | 0,1440 | 6,94 | ||||
Physico-mechanical properties of CBPB TAMAK
Reference indicators of physical and mechanical properties of CBPB TAMAK
| № | Name of the indicator, units measurements |
Value for TsSP-1 slabs | GOST |
|---|---|---|---|
| 1 | Modulus of elasticity in bending, MPa, not less | 4500 | GOST 10635-88 |
| 2 | Hardness, MPa | 46-65 | GOST 11843-76 |
| 3 | Impact strength, J/m, not less | 1800 | GOST 11843-76 |
| 4 | Specific resistance to pulling screws out of plates, N/m | 4-7 | GOST 10637-78 |
| 5 | Specific heat capacity, kJ/(kg K) | 1,15 | - |
| 6 | Biostability class | 4 | GOST 17612-89 |
| 8 | Reduction in bending strength (after 20 cycles of temperature and humidity influences), %, no more | 30 | - |
| 9 | Swelling in thickness (after 20 cycles of temperature and humidity influences), %, no more | 5 | - |
| 10 | Flammability | Low-flammable group G1 | GOST 30244-94 |
| 11 | Frost resistance (decrease in bending strength after 50 cycles), %, no more | 10 | GOST 8747-88 |
Load table for Tamak CBPB “Concentrated load - single-span beam”
| span, mm |
|||||||
|---|---|---|---|---|---|---|---|
| Thickness 8 mm |
Thickness 10 mm |
Thickness 12 mm |
Thickness 16 mm |
Thickness 20 mm |
Thickness 24 mm |
Thickness 36 mm |
|
| 200 | 0,213 | 0,345 | 0,480 | 0,813 | 1,414 | 2,007 | 4,802 |
| 250 | 0,171 | 0,267 | 0,387 | 0,623 | 1,031 | 1,572 | 3,280 |
| 300 | 0,142 | 0,212 | 0,307 | 0,508 | 0,803 | 1,167 | 2,687 |
| 350 | 0,110 | 0,168 | 0,267 | 0,423 | 0,688 | 1,030 | 2,288 |
| 400 | 0,096 | 0,153 | 0,248 | 0,377 | 0,622 | 0,945 | 2,042 |
| 450 | 0,082 | 0,128 | 0,195 | 0,347 | 0,553 | 0,760 | 1,147 |
| 500 | 0,056 | 0,095 | 0,185 | 0,345 | 0,541 | 0,667 | 1,572 |
Thermal properties
DSP, thanks to the organic compound of wood and cement, is a homogeneous monolithic material without air inclusions, which ensures high thermal conductivity. Therefore, the greatest use of DSPs is found in structures where a combination of high strength and low temperature resistance of the material is required. The thermal properties of DSP are assessed using the thermal conductivity coefficient, which is the most important thermal indicator of building materials.
Dependence of thermal conductivity coefficient on slab thickness
Soundproofing
Insulation index airborne noise
| DSP TAMAK 10 mm | R W =30 dB |
| DSP TAMAK 12 mm | R W =31 dB |
Impact noise insulation index
Cement particle boards with a thickness of 20 and 24 mm, laid directly on the reinforced concrete load-bearing floor of the measuring chamber of the NIISF RAASN, provide improved impact noise insulation by 16-17 dB, respectively.
When laying 20 and 24 mm thick cement bonded particle boards not directly on reinforced concrete slab overlap, and on the intermediate layer elastically soft material There is an additional improvement in impact noise insulation, amounting to 9-10 dB.
Specific resistance to pulling out screws
| № | Name screw, DxL, mm |
Hole diameter for a screw, mm |
Average specific resistance from 5 tests, N/mm |
Spread of specific resistance, N/mm |
|---|---|---|---|---|
| 1 | 5.5 x 30 | 3,0 | 122 | 118 ÷ 137 |
| 2 | 5.0 x 30 | 3,0 | 85 | 68 ÷ 103 |
| 3 | 4.5 x 30 | 3,0 | 93 | 80 ÷ 108 |
| 4 | 4.0 x 30 (L thread 20mm) |
2,5 | 110 | 88 ÷ 147 |
| 5 | 4.0 x 30 (L thread full) |
2,5 | 114 | 103 ÷ 124 |
| 6 | 3.5 x 30 | 2,5 | 104 | 87 ÷ 116 |
| Wed 105 |