Among the slab and sheet materials used for finishing and construction of partitions and various design elements, you cannot ignore the cement-bonded particle board or cement-bonded particleboard. Of course, in terms of popularity it is inferior to drywall, but, as practice shows, it is also suitable modern world there is a place. Most often, the DSP board is 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 sheathing frame houses. Better than this material for given value Can't find it today. Another advantage is the ability not only to paint the cement-bonded particle material, but also to use it as finishing. Fortunately, manufacturers today offer a huge assortment with designs to match 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 added to the resulting mixture various additives, improving 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 a three-layer structure, and chips 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
The fact that this is a durable material is clear, because it contains 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 over a fairly 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 applications. 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 finishing, and sheathe it 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 drywall are not suitable here, especially if we're talking about 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.
The construction industry is one of the most actively developing today. Periodically on the market building materials new technological solutions are emerging. One of these innovations is DSP boards, the sizes and prices of which have greatly pleased both specialists in this field and ordinary consumers. Today, together with HouseChief experts, we will try to figure out what is unique about this building material, what are its positive traits, and does it have any disadvantages?
Read in the article
What is DSP
The uniqueness of the sheet building material that received short name CSP (cement particle board) lies in the fact that in its composition it was possible to combine seemingly incompatible components - Portland cement and crushed wood shavings. This became possible due to the introduction of special hydration additives that neutralize the harmful effects of the components included in the slabs on each other. Modern manufacturers learned to make slabs without the use of phenol and formaldehyde, which are harmful to human health.
Technically, the process of making plates is as follows:
- The raw material mass is formed in a special drum, into which wood chips, mineral components, Portland cement, and water are successively added.
- The formation of the slab occurs layer by layer, with finely ground chips located outside, and larger ones inside the product, thereby ensuring its strength. The smoothness of the front layer is achieved due to fine chips.
- Moving along the conveyor line, the workpiece falls on Hydraulic Press, where it is molded under high pressure.
The ideal smooth surface allows you to evenly or wall. If you cover the house with panels and paint them in one of the pastel colors, you will get classic facade in , where main role Decorative strips covering the joining seams between the panels will play a role.
Water-repellent properties have made products based on chips and indispensable for finishing wet areas.
Technical characteristics, application of CBPB boards
- The density of the products should be from 1100 to 1400 kg/m³ under normal humidity conditions.
- Water absorption should not exceed 16%.
- Changes in linear dimensions are allowed when high humidity(6–12%) in width by no more than 2%, in length - by 0.3%.
- The bending strength should be: 12 MPa for panels with a thickness of 10, 12 and 16 mm, 10 MPa for slabs with a thickness of 24 mm and 9 MPa for slabs with a thickness of 36 mm.
- The strength of the slab under perpendicularly applied tensile loads must be at least 0.4 MPa.
- Sound insulation properties are 45 dB.
- Thermal conductivity – 0.26 W/m×°C.
- According to GOST 7016-82, the value of the roughness level after factory grinding should not exceed 80 microns. For untreated boards this figure is 320 microns.
- The material belongs to the group of low-flammable products (G1).
- For dry premises, the service life is 50 years or more.
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Important! It is recommended to use a disc for cutting concrete and stone with a carbide coating intended for this type of work. To prevent the tool from quickly breaking down, the rotation speed must be at least 200 rpm.
DSP façade finishing
Houses whose facades are lined with DSP acquire an aesthetic appearance. The front layer of such products may have different versions. They imitate other finishing materials (stone, brickwork, Milled decorative slabs imitating stone and brick 
ABOUT decorative materials This video will tell you about the DSP for finishing facades:
Application of DSP for flooring
When laying DSP on the floor along the joists, it is recommended to choose a thickness of products from 24 mm to ensure sufficient strength flooring.
Fastening by joists Preparatory work before laying CBPB on the floor The plates are fixed using self-tapping screws, and the screw with a countersunk head must be immersed in the body wooden beam by 20 mm. The result is a perfectly flat subfloor with excellent performance characteristics.
csp plate
Frame construction
DSPs have proven themselves to be excellent in the construction of frame-type houses. There are two options - purchasing a ready-made house kit based on DSP or self-construction walls between which is located mineral insulation. The slabs are fixed using wooden or metal sheathing, at the same time they sew up the frame around the perimeter, and after that they cut out the House along frame technology using DSP
Article
DSP board (cement particle board)- popular construction and finishing material, consisting of wood chips, Portland cement, water and special additives that provide the necessary performance characteristics.
The slabs are made by pressing. The result is durable sheets with smooth surfaces and ends, which allows you to significantly save time during their installation. This non-flammable material, therefore it is recommended for widespread use in construction.
DSP is used:
- as cladding of columns, internal and external cladding walls, entrance door trim
- for the construction of moisture-resistant partitions and wall cladding in wet rooms
- as a front covering for floors, ceilings, window sills, creating a base for roofing
- as permanent formwork for building foundations
Technical characteristics of cement bonded particle board
DSP, whose technical characteristics are among the best among wood-based panel materials, is widely used in construction, agriculture and other areas of our lives. In this table you can see the main technical characteristics of cement bonded particle boards.
| Index | Unit | Meaning |
|---|---|---|
| Modulus of elasticity in bending, not less | MPa | 3000-3500 |
| Impact strength, not less | J/m² | 1800 |
| Density | kg/m³ | 1100-1400 |
| Tensile strength perpendicular to the slab layer, not less | MPa | 0,35-0,4 |
| Humidity | % | 9±3 |
| Water absorption in 24 hours, no more | % | 16 |
| Reduction in bending strength (after 20 cycles of temperature and humidity influences), no more | % | 30 |
| Thermal conductivity (m-°C) | W | 0,26 |
| Flame Spread Index | 0 (flame does not spread over the surface) | |
| Smoke generation group | D (does not emit toxic gases and vapors) | |
| Warranty period of operation in building structures | years | 50 |
| Flexural strength | MPa | 7-12 |
| Hardness | MPa | 45-65 |
| Specific resistance to pulling screws out of the formation | N/m² | 7 |
| Frost resistance cycles | 50 | |
| Swelling in thickness in 24 hours, no more | % | 2 |
| Swelling in thickness (after 20 cycles of temperature and humidity influences), no more | % | 5 |
| Specific heat | kJ (kg-°C) | 1,15 |
| Fire resistance limit | min | 50 |
| Biostability class | 4 | |
| Flammability group | G-1 (hard to burn) |
Advantages of DSP
- Environmental friendliness. Cement particle boards do not emit toxic substances into the atmosphere and do not contain components hazardous to human health.
- Fire safety. Does not spread combustion and does not ignite within 40-50 minutes of exposure to fire.
- Compatible with other materials. The DSP sheet has smooth surface, so you can lay tiles on top of it, glue wallpaper, and paint without prior leveling.
- Water resistance. The material has low water absorption and retains its original dimensions after drying.
- Biostability. Not susceptible to mold and mildew, does not attract insects and rodents.
- Durability. The material has high mechanical strength and retains performance characteristics for at least 50 years.
Dimensions of DSP
View sizes and thicknesses DSP sheets:
| Manufacturer Tamaksky plant | Manufacturer Kostroma plant | ||
|---|---|---|---|
| 2700x1250x8 mm | 3200x1250x8 mm | 3200x1200x8 mm | 2700x1200x8 mm |
| 2700x1250x10 mm | 3200x1250x10 mm | 3200x1200x10 mm | 2700x1200x10 mm |
| 2700x1250x12 mm | 3200x1250x12 mm | 3200x1200x12 mm | 2700x1200x12 mm |
| 2700x1250x16 mm | 3200x1250x16 mm | 3200x1200x16 mm | 2700x1200x16 mm |
| 2700x1250x18 mm | 3200x1250x18 mm | 3200x1200x18 mm | 2700x1200x18 mm |
| 2700x1250x20 mm | 3200x1250x20 mm | 3200x1200x20 mm | 2700x1200x20 mm |
| 2700x1250x24 mm | 3200x1250x24 mm | 3200x1200x24 mm | 2700x1200x24 mm |
Where to buy cement bonded particle boards
DSP boards can be purchased at our warehouse complexes in Moscow and the Moscow region. You can order delivery of material with payment on the spot. It is possible to form prefabricated machines with
The construction of modern buildings requires increasingly advanced, versatile, high-quality and inexpensive materials. One of the latest developments in this direction is CBPB, which can roughly be called an improved version of particle boards.
Cement particle board as a building material
Cement particle board, which appeared on the building materials market relatively recently, has already been appreciated by many developers. Thanks to excellent operational characteristics, with its help, dry installation of structures is carried out in buildings for various purposes.
DSPs are manufactured using the pressing method. Hardwood shavings (its share is 24%) are mineralized under the influence of special hydration additives (2.5%), after which Portland cement (65%) and water (8.5%) are added to it. As a result, a monolithic smooth slab emerges from the press, consisting of several layers with large fractions on the inside and small ones on the outside.
Types and characteristics
There are 3 types of DSP:
- fiberboard – thermal insulation material based on long-fiber shavings (“wood wool”). Soft, easy to process, resistant to biological factors;
- wood concrete– made from sawdust and small shavings. It has a wide range of applications (thermal insulation, finishing, material for wall partitions, etc.);
- xylolite(slab and cast). It has high strength, thermal insulation qualities and a wide range of color solutions, used as flooring.
Due to their water absorption, the slabs increase in size, so when installing, a gap is required between them
Pros and cons of slabs
The high popularity of DSPs is explained by their many advantages:
- if the installation was carried out in accordance with the technology requirements, The service life of the slabs can reach 50 years. Research results have shown that the material does not lose its beneficial properties even after repeated cycles of freezing and thawing. The boards also showed high resistance to moisture, fire and biological factors;
- multilayer structure provides high strength characteristics of the DSP for tension and compression, which allow you to strengthen frame structures using slabs;
- slabs are often used as insulation, which is explained by their good heat and sound insulation qualities;
- material processing is not special labor. He easy to drill and cut, its flat surface is excellent for applying putty, plaster and adhesive compositions, due to which the slabs are successfully used in the design of premises;
- exact dimensions of the slabs significantly speed up the installation process;
- the front side of the DSP can have not only a flat, but also a corrugated surface. This ensures a variety of room design;
- ecological cleanliness;
- relatively low cost.
There are significantly fewer disadvantages of cement-bonded particle boards:
- heavy material weight(about 14.5 kg per square meter), which significantly complicates the installation process. This is explained high density DSP (up to 1400 kg per cubic meter);
- low strength indicators bending, which sometimes leads to breakage of the slabs.
Scope of application
These slabs are used in large and private construction. They are used to build houses, utility rooms, use them indoors and outdoors, and even make furniture. The thinnest slabs (from 10 to 16 mm thick) are used for cladding the internal and external walls of buildings for various purposes. For fastening, it is necessary to first make a sheathing made of wood or metal profile. In addition to aesthetic This design can also serve thermal insulation purposes.. In this case, the space between the DSP and the wall is filled with insulation. This method is often used to modernize old buildings. Its advantages are simplicity and relative low cost. The permissible gap between the plates is up to 1 cm. The joints are sealed and overlays are attached over them.
The same DSP (up to 16 mm) also used for the manufacture of internal partitions. Thanks to high performance moisture resistance, they are often installed in bathrooms and other similar rooms. The slabs are pre-primed, the surface and edges are treated with water-repellent materials. They are also used to produce balcony railings, cladding for fire-resistant doors, etc.
From the best varieties DSP can even make furniture
From DSP from 12 to 24 mm perform permanent formwork for foundations in low-rise construction. The high strength of the slabs prevents their deformation when pouring the mortar. Another advantage of the design is its simplicity. If the DSP is painted or covered with a waterproof material, they can serve as vertical waterproofing.
Window sills made of cement-fiber boards fit perfectly into any interior. They have all the advantages of wood products, but at the same time they are much cheaper. The thickness of the slabs used for the production of window sill boards is 24-36 mm. They are not subject to deformation, durable, monolithic and affordable.
When arranging floors Cement particle boards successfully replace chipboards. If a floor made of CBPB is laid on logs, then the distance between them should be within 60 cm, and their cross-section should be at least 5x8 cm. CBPB from 16 to 36 mm in thickness can act as a base, underlying, leveling or finishing layer with front trim. In some cases they are used instead cement screed, as well as during the construction of prefabricated floors according to bulk soils(CSP floor slabs with a thickness of 24-36 mm).
A base for soft roof
. For this work, 16-24 mm slabs are used.
Installation methods
DSPs can be mounted in various ways depending on the purpose for which they are used. When finishing or insulating buildings, they are attached to the sheathing, made of metal profiles or wooden blocks, with self-tapping bolts or nails. The installation of permanent formwork also involves erection of the frame (given the large weight of the slabs, it, like the sheathing when finishing the walls, must be strong enough). In addition, the slabs can be laid on joists (when installing the floor) or rafters (under roof covering). For interior decoration they are also can be attached to the wall with mortar or mastic.
Release form and cost
DSP is sold in sheets packaged in bundles. Panel thickness varies from 8 to 36 mm. Dimensions can be (in mm): 2700x1250, 3200x1200, 3200x1250 and 3600x1200. The number of sheets in a pack depends on the dimensions.
The cost is set per square meter or per sheet. In the first case, it depends only on the thickness, in the second - on all panel parameters. The sizes of CBPB slabs for walls differ from those used for floors, but the price is approximately the same. Price square meter 8 mm DSP from different sellers starts from 150-250 rubles. The most massive slab (36 mm) will cost about 4-5 times more.
According to their own beneficial properties(except, perhaps, only for the weight) DSP is in no way inferior to its wooden counterparts and even surpasses them. And the versatility of the material combined with affordable price make it an almost ideal choice for construction and finishing work.
The construction of a house from fiber board in a month is described in this video:
