Cement particle board is a relatively new building material with a universal scope. Has a completely natural base, DSP sheets do not burn, are not afraid of moisture, are resistant to most external influences and need a minimal protective finish. The reviews are mostly positive, the owners of private houses refer to them as budget ones. The only significant limitation is the high specific weight, on average it is 1300 kg / m3, which makes it difficult to self-assemble.

The material is in the form of flat slabs with a dense and uniform structure of gray-brown color. The basis of CBPB is cement and wood chips (65 and 24%, respectively), 8-8.5% of the raw material volume is water, the remaining 2.5% are hydration additives to reduce the moisture concentration in the final product (for example, aluminum sulfates). There are no harmful impurities, cement-bonded particle board does not contain asbestos, formaldehydes or phenols. At the same time, it is highly resistant to biological influences, the alkaline environment formed by cement protects the chips from rotting, fungus, insects and even rodents. For the same reason, he is not afraid of fire, despite the natural wood.

The technical characteristics of DSP and their dimensions are regulated by GOST 26816-86. The main indicators include:

• Density - in the range of 1100-1400 kg / m3, the standard value is 1300.
• Humidity - 9 ± 3%.
• Water absorption by volume in 24 hours - no more than 16%.
• Flammability group - G1.
• The flexural strength, depending on the thickness of the slabs, is at least 9-12 MPa, and the compressive strength is within 0.4.
• Thermal conductivity coefficient - 0.26 W / mK.
• Water vapor permeability - 0.03 mg / m · h · Pa, which justifies the use of such plates indoors.
• Deterioration of strength characteristics at 50 cycles of freezing and thawing - no more than 10%.

DSP has standard dimensions: 2700 or 3200 mm in length, 1200 or 1250 in width, thickness varies from 8 to 40 mm. The surface of the slabs can be smooth or embossed, the roughness of polished products is zero. The permissible deviation in length and width does not exceed ± 3 mm, in thickness - ± 1.4 for the thickest sheets. Reviews confirm the high geometric accuracy of the slabs, their decorative and insulating properties are positively evaluated (noise absorption inside the premises reaches 30 dB).

Construction use: pros and cons

The main limitation of the use of cement-bonded particle boards is the high specific gravity. With equal dimensions, they lose to chipboard and other sheet building materials in this regard at least twice. The use of a DSP automatically implies an increase in the load on the foundation and bearing structures, the increasing requirements for the reliability of the frame and fasteners, the complexity of their transportation to the upper sections. One slab of average thickness weighs at least 80 kg, installation by one person is impossible, just like climbing to the second floor without scaffolding and winches.

Sawing and further processing is possible at home, but you should be prepared for the formation of dust. DSP refers to abrasive materials, in terms of strength characteristics similar to dense wood, such purposes imply the use of tools with high frequency revolutions and hard working surfaces. On the other hand, according to the reviews, there are no problems with drilling, fastening and subsequent finishing, the edges when cutting are neat in any case.

In general, the advantages prevail over the disadvantages. The pluses include:

• Environmental safety.
• Versatility and multifunctionality.
• Compliance with fire safety standards: flame does not spread over the surface of the cement-bonded particle board, the material does not emit smoke and toxic substances under the influence high temperatures, the fire resistance limit is 50 minutes.
• Long term of maintenance-free operation, under normal conditions the durability reaches 50 years.
• Geometric accuracy of shapes. These products are certified, the dimensional characteristics of cement-bonded particle boards are controlled by GOST. Form stability is maintained throughout the entire service life, DSPs are not afraid of UV or temperature extremes. Fracture is only possible when mounted on an uneven surface.
• Independence from climatic conditions.
• Good insulating properties, applications include sandwich structures.
• Resistant to moisture and decay.
• Vapor permeability allowing breathing.

The main criterion is the thickness of the slabs, it is selected taking into account their intended purpose. In particular, the recommended limit for different building structures is, mm:

• When installing the formwork - 12-24.
• For slabs for facade cladding and interior wall decoration - 10, 12 and 16.
• When erecting moisture-resistant partitions - 12 and 16.
• Using DSP as a window sill - from 24.
• When using floor slabs (rough, base for other building materials, leveling layers or finishing) - from 8 to 24.

The higher the expected loads (including humidity), the thicker the DSP is needed. At the same time, an increase in this dimensional characteristic leads to an inevitable increase in weight, which is not always acceptable. This also applies to the value of material costs: prices for DSP different sizes, but the same in area, vary from 600 to 2500 rubles with a thickness of 8 and 36 mm, respectively.

The next factor to be taken into account is the type of surface of the slabs, the plaster fits equally well on both embossed and smooth varieties, but when painting, the use of the latter is preferable. Textured DSP is optimal for interior decoration. Attention is drawn to the compliance of the characteristics of the GOST slab, in this regard it is better not to take risks and purchase products from trusted manufacturers. Positive reviews have products from the Russian factories Tamak (Tambov), TsSP-Svir (St. Petersburg), Stropan (Omsk), CJSC MTI (Kostroma), Sterlitamak (Bashkortostan). Their price offers are practically the same, the total cost is influenced by the proximity of the warehouse and the volume of purchases.

Review overview

“During the construction of the garage, a leveling cement-sand mixture, about 3-5 cm, after hardening, I placed the sheets of DSP 26 mm thick on top. Gave a year to shrink, during this time the floor was used. I did not find any deflections, faults and places of decay of the material, the surface remained even, and as a result I covered it with tiles. There are no complaints about the quality. "

Alexander, Moscow region.

“Four years ago, I was building a house outside the city using the frame method. A familiar builder praised this material, which was quite new for our market, and decided to buy it for external and internal walls and floors. For the façade and rough flooring, I used cement-bonded particle boards 24 mm thick, for the cladding from the inside and the ceiling 20 and 10 mm, respectively. The disadvantages include the difficulty of cutting and processing it - almost a special tool is required, a lot of dust is generated. The second drawback is associated with weight - it is impossible to install the DSP alone ”.

Pavel, Nizhny Novgorod.

“When building the house, I used DSP with a thickness of 24 mm as permanent formwork for the foundation. The result was a big saving on scaffolding, they did not bend when poured with concrete. Subsequently, he laid them with tiles, with a minimum consumption of glue, it holds well. I advise you to buy in bulk, at retail the cost of a sheet is at least 10% higher, and the leftovers on the farm will come in handy. "

Igor, St. Petersburg.

"At overhaul at home I used DSP boards instead of drywall for installation internal partitions and sub-flooring. I was surprised by their quality, in the end it turned out perfect smooth walls... I putty only the seams, I chose wallpaper for finishing. The disadvantages include the weight and complexity of processing at home, because of the dust, the sawing had to be done outside. "

Vadim, Moscow.

“I insulated the facade of the house with mineral wool, and decided to buy cement particle boards for the exterior finish. Difficulties arose only when choosing a material for the frame, in the end I settled on a wooden beam. There were no problems with the fasteners; under the influence of moisture and sunlight in the summer, the DSP does not lead and does not melt. It is worth paying attention to the seams, as they explained to me in the hardware store, when cladding the facades, they should not exceed 5-8 mm and must be sealed with special mastic. "

For comparison with other materials, we suggest using characteristics such as:

• fire safety;
• ease of installation;
• mold and disease resistance;
• reviews of builders;
• reviews of tenants and owners of houses.

Fire safety and flammability class

According to this parameter, CBPB surpasses not only polymer insulation and PVC, but even wood concrete. DSPs have been assigned a flammability class - G1, that is, they are hardly combustible. Due to the high proportion of cement, each of the shavings is surrounded by cement stone, therefore to start the pyrolysis process in wood close to the surface exposure to a temperature of 500 degrees or more for half an hour is necessary.

As soon as the thermal effect is eliminated, the pyrolysis process is quickly completed, because for the start of a self-sustaining reaction, close contact of many chips is required.

If the temperature exceeds 700 degrees, and this effect lasts over an hour, then the pyrolysis of shavings begins throughout the depth of the plate.

At this temperature, any building materials suddenly lose their strength, and concrete is completely destroyed. Therefore, after a fire of such strength, the house cannot be repaired, except that the fire was of a local nature and only a small section of the house burned out.

Even the beginning of the pyrolysis process does not lead to the release of especially toxic substances, because the main components of pyrolysis gas (smoke) are:

• nitrogen;
• carbon dioxide;
• carbon monoxide.

Only carbon monoxide is a serious danger, but, firstly, very little is released during pyrolysis, and secondly, during a fire, combustion occurs in conditions of a lack of oxygen, therefore carbon monoxide is emitted everywhere in huge quantities.

Therefore DSP one of the safest in the fire plan of materials and is comparable to gypsum board and fiber plates. It is much safer than finishing from:

• plywood;
• boards;
• wood concrete;
• insulating fibreboards;
• foams and plastics.

Ease of installation

Due to the high content of cement CBPB much harder than most others finishing materials.

The weight of thin sheets is 25–45 kg, so at least 2 people are required to work with them.

To work with thick sheets, 5–6 people are required, because the weight of a 26 mm sheet exceeds 200 kg.

Cutting the material is also difficult, because it is necessary to use high speed circular saw and diamond blade or carbide-tipped.

Therefore, in terms of ease of installation, DSP is inferior to most finishing materials. After all, its weight, with equal dimensions and thickness, exceeds the weight of any other finishing material, including LSU and wood concrete.

Mold and disease resistant

Due to the fact that the wood in the cement-bonded particle board does not have direct contact with air, it is less susceptible to mold and diseases.

In addition, for products manufactured in accordance with the requirements of GOST, the shavings are pre-soaked in a solution of lime or other reagents, increasing biological resistance wood.

Reviews of builders and residents about wood-cement blocks

To collect the most reliable feedback on the characteristics, application and prices of DSPs, we turned to forums, among whose users there are:

• professional builders;
• experienced engineers;
• owners of apartments and houses;
• people with experience in self-repair.

Here list of forums with the threads of the DSP discussion:

• Forumhouse;
• Forumgrad;
• NGS House;
• Vegalab;
• Building a house;
• Mastergrad;
• Ideas for your home;

Spheres of application of DSP

DSPs are widely used in many construction areas due to their technical characteristics. Modern products based on cement and wood chips compete with plasterboard, fiberboard and plywood.

Loft-style room

Facade decoration DSP

Houses, the facades of which are faced with DSP, acquire an aesthetic appearance. The front layer of such products can have different designs. They imitate other finishing materials (stone, brickwork, plaster) or have a decorative rough surface made of stone chips of various colors and fractions.

Milled decorative slabs for stone and brick
High strength, resistance to negative impacts environment and the aesthetic appearance of decorative CBPBs make it possible to successfully use them for facade work in the construction of private houses
Variety of face decorative layer made of stone chips

This video will tell you about decorative materials based on DSP for facades:

Application of DSP for flooring

When laying DSP on the floor along the logs, it is recommended to choose the thickness of the products from 24 mm in order to ensure sufficient strength of the floor covering.

Fastening on lags

When working indoors, it is necessary to make preparatory activities- close up the holes in the base, if any, fix the logs, put insulation and vapor barrier material.

Preparatory work before laying the cement board on the floor

The plates are fixed with self-tapping screws, while the countersunk screw must be immersed in the body wooden beams by 20 mm. The result is a perfectly flat sub-floor with excellent performance.

Frame construction

DSPs have proven to be excellent in the construction of frame-type houses. There are two options - purchasing a ready-made house kit from SIP panels based on DSP or self-erection walls, between which there is a mineral insulation. The plates are fixed along a wooden or metal crate, while the frame is sewn up along the perimeter, and then the window and door openings are cut out. The lathing elements are installed in 60 cm increments so that the insulation material can be firmly fixed between them. Plates are taken with a thickness of 10-16 mm, they are fixed with galvanized screws.

House on frame technology using DSP

Related article:

DIY frame house: step by step instructions. Do you want to build a frame house with your own hands? Step-by-step instruction, given in this article, will help to understand all the intricacies quickly and easily even for beginners.

Interior finishing works

The environmental safety of cement-bonded particle boards made it possible to use them as a full-fledged finishing material inside premises for any purpose. Due to its high moisture resistance, this material has significantly displaced drywall, which is not recommended for use on walls in damp rooms.

Aligning the walls and floor in the bathroom

DSPs are used for effective leveling of walls and their subsequent finishing with decorative finishing materials. However, DSP in some interiors (loft, industrial, high-tech and others), where an untreated concrete texture is appropriate, is used to create accent surfaces and even for cladding entire rooms.

The accent wall in the bedroom at the head of the bed is made of cement panels

The fixing of the plates depends on the thickness and dimensions of the sheets, and, accordingly, their weight. Heavy products are fastened along the crate, and light ones - with the help of a special solution or mastic.

Production of SIP panels from CBPB

SIP panels made of CBPB are a three-layer material, where insulation made of expanded polystyrene, basalt fiber or polyurethane foam (PPU) is fixed between the sheets.

Appearance of sandwich panels

The general hallmark material is its high fire and environmental safety. The possibility of quick construction of a private house and significant savings on finishing facade work.

Assembling a house kit from self-supporting insulated wire with DSP

Application of DSP for formwork in monolithic construction

There are a number of advantages of this type of fixed formwork in the production of monolithic works:

1. Reducing installation work and the total construction time of the facility.
2. Surface readiness for final finishing.
3. High profitability of the construction of the facility as a whole.
4. A guarantee of creating a solid and reliable structure.

Monolithic construction using permanent formwork made of cement-bonded particle board

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 crate, made of a metal profile or wooden bars, with self-tapping bolts or nails. Arrangement of permanent formwork also involves frame erection (given the large weight of the slabs, it, like the crate for wall decoration, must be strong enough). In addition, the slabs can be laid on joists (when installing the floor) or rafters (under the roof covering). For interior decoration, they are also can be attached to the wall with mortar or mastic.

Preparation for the installation of a coating from a DSP

Before starting work on the arrangement of the rough flooring from DSP, the base of the floor must be properly prepared. For example, in the case of laying material on a wooden base, old or rotted boards must be dismantled and replaced with new ones.

It is important to seal all the cracks with a putty, and the wooden base is primed for better adhesion to the glue, on which the slab covering will be mounted.

If the installation will be carried out on a concrete base, then it should also be carefully inspected for damage and repaired if necessary. Also, if there are strong horizontal deviations, alignment is performed cement mixtures... In the case of placing cement-bonded concrete on the ground, preliminary leveling of the surface must be carried out - this can be done by pouring a 20 cm thick sand-gravel mixture onto the ground and tamping it.

The process of building a gazebo with a floor of cement bonded particle board

The best option is to lay DSP boards on logs. In this case, if it is planned to install the base directly above the ground, the supports for the logs are installed on the ground, and hydro and thermal insulation is also laid. The distance between the supports can range from 0.5 to 1 m - this indicator depends on the thickness of the timber used for the logs.

Materials and tools that need to be prepared to work with DSP:

• timber for lags (section 150x100 or 50x100 mm);
• DSP boards in the required quantity;
• antiseptic solution for timber;
• a sawing tool (for example, a hacksaw);
• materials for waterproofing and insulation;
• tools for making measurements (tape measure, pencil);
• fastening material;
• drill.

Fastening floor tiles with self-tapping screws

How to paint a DSP board

The simplest way is to paint to give the DSP boards an attractive appearance. After appropriate surface preparation, apply two coats of paint with a roller or. Most often, in order to paint the DSP, they use:

Acrylic paints . This paint has good adhesion and high wear resistance. If financial possibilities allow, it is better to use paints that include a solvent, but also water-soluble facade paints. acrylic paints, when applied correctly, will last 3 to 5 years.

Latex paint . This coating is resistant to alkaline and weak acid solutions, easy to wash and mechanical cleaning with detergents. Besides. Painting works can be done independently, which will save a significant amount.

Silicate paint . The use of this type of coating has high adhesion, their vapor permeability provides optimal conditions for air circulation, which prevents mold and other fungi. The coating is not afraid of atmospheric influences and detergents, and the service life will satisfy even the most demanding requirements.

Before proceeding to painting DSP, it is necessary to take into account that the use of alkyd paints is undesirable, since in direct contact with alkalis, cracking and peeling of the coating can occur.

1 What are such plates made of? Do you need additives?

DSP is a multicomponent sheet building material, in the manufacturing process of which Portland cement and wood shavings are used. In addition, the board contains special chemical additives that allow the base materials to coexist without any problems. Indeed, under normal conditions, wood is not on friendly terms with cement, which provokes excessive moisture and the associated warping and rotting of the material.

Portland cement and shavings are used for the production of CBPB

The use of special additives (up to 2.5–3% of the total volume) eliminates the negative consequences of the proximity of wood and cement, imparting such beneficial features the first and second components as heat resistance and fire resistance. Moreover, due to the percentage - 24% of the wood accounts for 65% of the cement - the slab acquires other positive qualities: high strength, frost resistance, sound insulation properties, vapor permeability and complete disregard of the material by both insects and rodents.

In addition, it is both wooden and cement board demonstrates such qualities as resistance to fungi, moisture resistance, resistance to temperature shrinkage and compatibility with most finishing materials, which is explained by enviable adhesion. At the same time, chemical additives in CBPB do not belong to environmentally harmful materials, since they do not contain either asbestos or formaldehyde.

DSP specifications

In manufacturing, high-strength cement compositions are mixed with wood shavings of various fractions, water and a number of chemical reagents (for example, with water glass or aluminum salts). By reacting with wood chips, chemicals mineralize it, thereby increasing the strength and durability of the board.

Layering is the main quality of the boards, which guarantees their high quality and special strength. The structure of the slab is formed in such a way that large fractions of chips are located inside, and small ones - outside. After the preparation of the cement-bonded particle mass, it is placed in layers in special molds under the press, from where the finished multilayer particle board with a smooth surface on one side comes out.

DSP: specifications the boards are such that it does not require the application of a finishing filler. It is enough to paint the boards after placement. In some cases it will be sufficient to apply a thin layer of primer before painting.

Cement-particle board floors laying nuances

In general, the installation of CBPB boards is carried out in the same way as the installation of OSB boards.

During the work, it is important to follow several rules, and then it will be possible to make the base of the floor as high as possible:. wooden bar for lag, it must be treated with compounds that prevent decay

Special compositions can be replaced with machine oil;

• wooden beams for lags must be treated with compounds that prevent decay. Special compositions can be replaced with machine oil;

Antiseptics for wood impregnation

• when installing slabs on a concrete screed for lags, you can use a beam of a smaller section - up to 50x50 mm. This will save usable space;
• when installing the lag, you should monitor their level - it should be strictly horizontal;
• before installation, DSP slabs are laid out on logs - this will allow you to determine which of them need to be trimmed if necessary;
• the glue must be well mixed before use;
• compensating gaps along the walls will help to avoid deformation of the base of the DSP.

Another example of using DSP

DSP is not a bad material when used to create an even base. It is not difficult to work with him, but due to the large mass of sheets it is better to get an assistant.

Installation features

Plates based on a cement-bonded mixture are easy to process. For cutting, you need a hacksaw with fine teeth. Large teeth contribute to the formation of dust, makes the edges of the part uneven, so this tool is not suitable for sawing DSP.

When arranging a dry screed, a concrete or wooden coating is used as the basis for the slabs. The option of laying sheets on a frame is also allowed, the cells of which are pre-filled insulation material(mineral wool, foam, expanded clay, another type of dry filler).

Plates are fixed with self-tapping screws or with an adhesive mixture. Spread the adhesive evenly over the surface of the material with a notched trowel, leaving no gaps. This will help avoid material deformation.

It is also important to fill the joints generously with adhesive to obtain a monolith. Self-tapping screws are screwed in at intervals of 35-50 cm

When facing the cement-bonded particle board of the outer walls of the building, an installation method is used that provides for the arrangement of the lathing. Frame parts can be made of wood or metal profiles. When choosing a tree, it is recommended to pre-treat it with an antiseptic solution to protect it from premature aging and microbiological processes.

To create thermal protection of the dwelling, it is recommended to lay heat-insulating material between the walls of the house and the DSP. Preference should be given to basalt wool, which has a good indicator of vapor permeability (walls will breathe) and high resistance to moisture (low hygroscopicity will exclude moisture absorption into the heat insulator layers).

The final finishing of slabs made of a cement-bonded mixture provides for surface treatment with a primer composition, laying a reinforcing mesh and applying a layer decorative plaster... The facade is painted in a color that resonates with other architectural elements of the exterior.

Floor arrangement with DSP

Consider arranging a floor from DSP on logs using the example of a balcony.

Step 1. A layer of insulation is laid under the logs. The logs are installed parallel to the walls at a distance of about 30-40 cm from each other.

The logs are installed on top of the insulation

Step 2. Transverse bars are installed, the lathing is created. Wooden blocks are connected to each other using metal corners and self-tapping screws.

The transverse bars are installed, the crate is ready

Step 3. The space between the lags is filled with insulating material.

Insulation laying

Step 4. DSP slabs of the required dimensions are laid across the longitudinal logs. The width of the piece of material should be slightly less than the width of the balcony (by 5-10 mm).

Laying of CBPB boards

Step 5. Plates are fastened with self-tapping screws on the joists. The gaps between the CBPB boards are sealed with an adhesive.

Fixing the plates with self-tapping screws

Video - Laying tiles on DSP

DSP in the process of creating the foundation

Cement-based slabs and shavings can be used to create formwork that helps with the pouring of the foundation. The thickness of the material depends on the required dimensions of the foundation and ranges from 16 to 26 mm.

Strengths of CBPB formwork.

Ease of installation of slabs by an order of magnitude reduces labor costs and reduces the time of work, thus reducing the cost of the process of pouring the foundation. On the outside, you can apply a special paint, after which it will acquire the properties of vertical waterproofing. Due to the high strength of the slabs, the formwork is resistant to deformation during the pouring and drying of the concrete mortar.

The versatility of DSP allows the use of this material in the construction of housing on the basis of a frame, for leveling the flooring and walls, as well as during the installation of a soft roof in buildings of any type. CSP slab for the floor receives good feedback from builders around the world, thanks to the high quality of the material and excellent performance.

Cement particle board application for flooring

The main advantages of DSP are considered to be high strength and durability.

The use of building materials consists in laying the finished panels on different kinds grounds:

• flat surface of wood or cement floor;
• wooden logs installed at equal intervals.

Ceramic tiles can be glued to the surface of the slabs, the floor covering can be laid, as well as laminate or parquet can be laid. The properties of the material are maintained for decades, subject to the installation technology.

Sphere of application of DSP boards

As mentioned above, DSP slabs, the use of which provides a high mechanical strength of the created structures are widely used in construction, repair and finishing works, in particular:

• In the manufacture of formwork foundations and other monolithic reinforced structures. The use of DSP greatly simplifies the installation process, in addition, this design prevents concrete leakage and ensures the formation of smooth side walls that do not require subsequent plastering.
• For wall cladding and erection ... In most cases, DSP sheets are attached to a pre-assembled metal or wood frame. The thickness of the sheets in this case is from 8 to 12 mm. For fastening, self-tapping screws are most often used, it is also possible to use screws or nails as fasteners. In some cases, when leveling walls, special adhesive polymer mixtures can be used.
• Application of particle board for flooring provides high mechanical strength, as well as high heat, hydro and sound insulation. The thickness of the material is selected based on the existing loads and the distance between the joists, however, it is not recommended to use DSP boards with a thickness of less than 14 mm.
• Facade application at home allows not only to significantly reduce the timing of work on exterior decoration, but also provides high-quality waterproofing of the main walls. Another advantage is that when using DSP, the characteristics of the material allow you to create various types of ventilated facades. As for the sheet thickness, for outdoor use, it can vary from 12 to 14 mm.

Production of slabs

DSP manufacturing consists of the following stages:

1. Aluminum, liquid glass, various salts are included in the composition of aqueous solutions, which are loaded into special mixers.
2. Mineralization of raw materials occurs with the gradual introduction into these solutions of wood chips, consisting of different-sized fractional inclusions.
3. Then cement and a little water are added to the composition.
4. The mass is thoroughly mixed to obtain a homogeneous consistency, sent under a powerful press.
5. The result is a thin but durable product with a smooth surface.

A smooth surface of the board is obtained due to the special distribution of chips in its structure - larger fragments are inside the product, and small ones are on the surface. During the production of CBPBs, there are no voids in them. Another advantage is that the product is not subject to additional leveling, but can be immediately used for the manufacture of a subfloor and serve as a high-quality, even base for laminate, tiles and other types of topcoats.

DSP production technology

From the name itself, it becomes clear that the main components of this material are cement (65%) and wood chips (24%). All this is mixed with water (8.5%), and various additives are added to the resulting mixture that improve the technical characteristics of the board (2.5%).

Two types of chip material are used in the production process of CBPB boards. They differ in size: small and medium. The stove itself has three-layer structure, so shavings are poured into the second layer average size, and in the first and third shallow. The production process itself takes place in the following sequence.

• The shavings are mixed with hydration additives.
• M500 grade cement is added to the resulting mixture.
• Water is poured.
• The solution is thoroughly mixed until a homogeneous mass is obtained.
• The first layer with fine chips is poured into the mold.
• Second layer with medium-sized chips.
• And the third layer.
• Pressing is in progress.
• After that, the semi-finished material is heated up to + 90C for eight hours.
• Then, within 13-15 days, it is dried in natural conditions.
• After that, depending on the batch, it is either polished or simply stored.

Cement particle boards application in construction

DSP is a cement-bonded particle board, and the name fully reflects the composition of this material. CBPBs are made from a mixture, the components of which are wood chips and cement compositions.

What are DSP and OSB? What is the difference?

The building material includes:

• wood shavings with fractions of various sizes - 24%;
• water - 8.5%;
• special additives - 2.5%;
• Portland cement - 65%.

DSP boards for outdoor use

The production process is quite simple - DSPs are done as follows.

1. Special water solutions are loaded into special mixers, which include various salts, water glass and aluminum.
2. Further, wood chips with fractions are gradually added to these solutions different sizes- mineralization of raw materials occurs.
3. Cement is mixed into the resulting composition and a little more water is added.
4. The mass is thoroughly mixed until smooth and then fed under a powerful press.

GOST 26816-86. Cement particle boards... Technical conditions. Download file (click on the link to open the PDF file in a new window).

GOST 26816-86

The result of this production chain is a finished cement-bonded particleboard that is thin enough and has a smooth surface. A a large number of cement in the composition allows you to create a fairly durable material. By the way, inside the plate, the shavings have b O Larger dimensions than outside, due to which the smoothness of the surface of the finished material is achieved. DSP does not need to be further leveled after installation, making the material excellent for creating a rough floor covering for laminate, tiles and other types finishing... Also, voids are not formed inside the DSP during production.

Cement particle board production

On a note! Wood shavings are also used as raw materials in the production of chipboard, fiberboard and OSB boards... The technologies for the production of these materials are somewhat similar to the technology for the production of DSP boards.

Comparative table of performance characteristics of wood-based materials

DSP boards are widely used in construction. They can be used to decorate the facade walls of houses, from which they create various partitions inside the premises. The material is suitable for use in restoration purposes and for interior finishing work. At the same time, it is suitable for both apartments and private houses.

DSPs are used in construction for many purposes.

DSP board is distinguished by high indicators of environmental friendliness, as it is created from natural materials and practically does not contain additional chemical ingredients. That is why the stove is recommended for use both in residential premises and in production.

Cement particle board (DSP)

The use of cement-bonded particle board is an opportunity to abandon the time-consuming pouring of a cement screed to create a base. Building material allows you to reduce labor costs and spend less money from the budget planned for leveling the floors for laying the topcoat.

Installation of a DSP slab under ceramic tiles

Processing rules than you can saw and drill DSP slabs

Whatever one may say, DSP is a concrete stone filled with shavings (wood filler). Therefore, when the question is raised, how to process the material of this type, you can not mention the hand tool. Cutting and drilling can only be carried out with an electric tool.

In this case, it is better not to use a jigsaw, although some masters of a slab of small thickness manage to cut with such a tool. You just have to change the file often - every 5-7 m. Therefore, the best solution is a circular cutting tool.

The easiest way to cut CBPB is with a circular saw with a diamond blade.

As for the disk, there are two options:

1. Diamond-plated disc with cut-out segments. This blade is used for dry cutting. Blades for cutting stone, concrete or brick can be used here - they will all work.
2. Victory-coated discs for cutting wood. DSP is not the most durable material in terms of comparison with a stone, so such a tool will cope with it.

As for the power tool, most often the craftsmen use a grinder or a circular saw (parquet).

Attention! It is easier to cut with circular DSP boards, because the power tool has a support bar. It is she who allows you to clearly orient the disk in the perpendicular plane to the sheet, and as a final result - an even cut of the material

DSP slabs can be cut with a grinder with a cutting diamond disc installed on it.

As for drilling holes in the slabs, either metal drills or victory drills are used for this.

Types and characteristics

There are 3 types of DSP:

• fibrolite- heat-insulating material based on long-fiber shavings ("wood wool"). Soft, easy to handle, resistant to biological factors;
• arbolite- made from sawdust and small shavings. Has a wide range of applications (thermal insulation, decoration, material for wall partitions, etc.);
• xylolite(slab and cast). Possesses high strength, thermal insulation qualities and a wide range of color solutions, used as a floor covering.

Due to their water absorption, the slabs increase in size, therefore, during installation, a gap is required between them.

Views

There are three types of DSPs. Studies of the material have shown with precision that each of them does not lose its valuable properties even during repeated cycles of significant temperature rise and subsequent defrosting.

Resistance to fire and a particularly humid environment, as well as negative biological factors was also confirmed. But each type of plate has its own characteristics, consisting in the method of production, differences in raw materials, characteristics of finished products and scope. Among the types, you can specify.

1. Fibrolite. It is based on the so-called wood wool, which is a long-fiber shavings. It also contains inorganic binders.

Wood strips obtained on special machines are impregnated with solutions of calcium chloride and liquid glass... Raw materials pressed in molds are subsequently dried. The thickness of such slabs can reach 150 mm, but there are a number of significantly thinner parameters.

These building elements, with their considerable strength, are excellent for thermal insulation. A similar material is used as an acoustic one.

It is easy to handle and soft, for this reason, it is in demand for multifaceted repairs, as well as work on the reconstruction of various structures. During construction operations with slabs, due to their low weight, lifting equipment is not required, therefore, their use is very economical.

2. Arbolit. It is attributed to the number of lightweight concrete and contains small shavings, sawdust, reeds or rice straw. The highest quality slabs of this type are made from wood chips.

If the basis of the composition is wood chips, then the material is usually called wood concrete, if sawdust - sawdust concrete. These two types have slightly reduced performance compared to the first mentioned above.

They are heavier, denser and prone to unpleasant deformations, but they are also somewhat cheaper. The scope of application of wood concrete is wide enough. But mainly it is in demand as a material for low-rise private construction, especially popular in the manufacture of wall partitions, also for decoration and thermal insulation.

3. Xylolite is most often used as a coating DSP for flooring. Slabs, similar to those previously described, are made from wood waste, differing from other types of production technology. On sale, the presented assortment pleases with a variety of colors.

The material stands out for its excellent thermal insulation qualities and increased strength. It does not burn in an open fire, but only gradually charred; even when boiling, it does not soak in water and is insignificantly heat conductive; has an enviable elasticity and is hard like a stone, but at the same time it is easily processed like a tree: it is drilled, planed and sawed. In the application, in addition to the above, it is perfect as a cladding for stone, covering stairs, window sills, roofs.

An important characteristic is the weight of the DSP board. Such indicators just need to be known during construction and other works.

The indicated data are very useful in the transportation of goods and at the time of installation work. The mass of one module directly depends on the thickness and, knowing this indicator, it is easy to calculate. Indeed, for every 10 mm, there is a slab weight of approximately 54 kg.

Installation work than sawing DSP

You should not try to cut the DSP with a hacksaw - this is a thankless task, the process is long, and the result leaves much to be desired. You can use a jigsaw or a grinder.

Article

Cement particle board (DSP) is a versatile building material suitable for both indoor and outdoor use. Moreover, in terms of the sum of its characteristics, it surpasses any sheet material based on wood (chipboard, OSB), since, in addition to high heat and sound insulating qualities, as well as enviable strength, the CFB board demonstrates acceptable fire resistance and a complete absence of warpage or shrinkage. Thanks to this, DSP can be painted, plastered, finished with ceramics (tiles) or siding.

What are such plates made of - are additives needed

DSP is a multicomponent sheet building material, in the manufacturing process of which Portland cement and wood shavings are used. In addition, the board contains special chemical additives that allow the base materials to coexist without any problems. Indeed, under normal conditions, wood is not on friendly terms with cement, which provokes excessive moisture and the associated warping and rotting of the material.

The use of special additives (up to 2.5–3% of the total volume) eliminates the negative consequences of the proximity of wood and cement, imparting such useful properties of the first and second components as heat resistance and fire resistance to the cement-bonded particle board. Moreover, due to the percentage - 24% of the wood accounts for 65% of the cement - the slab acquires other positive qualities: high strength, frost resistance, sound insulation properties, vapor permeability and complete disregard of the material by both insects and rodents.

In addition, at the same time a wooden and cement board demonstrates such qualities as resistance to fungi, moisture resistance, resistance to temperature shrinkage and compatibility with most finishing materials, which is due to enviable adhesion. At the same time, chemical additives in CBPB do not belong to environmentally harmful materials, since they do not contain either asbestos or formaldehyde.

What are the technical characteristics and sizes

Domestic enterprises have been producing the first CBPB slabs for floors and walls since the end of the 80s of the twentieth century. Now this composite building and finishing material is produced at six enterprises, adhering to the following size range:

• Length - from 2.7 to 3.2 m. Moreover, the most popular are slabs with a length of 3 meters.
• Width - 1.25 m
• Thickness - from 8 to 36 mm. Moreover, this parameter divides the nomenclature into 7 standard sizes, and the depth of the most popular sheets is 10, 16 and 20 mm.

The thickness and length of the sheet affect such a value as the weight of the particle board. Moreover, an 8-mm slab with a length of 2.7 meters weighs the least - 36.45 kg, and the maximum weight will be for a 36-mm slab with a length of 3.2 meters - 194.4 kg.

Other technical characteristics characteristic of a DSP board are as follows:

• Density - from 1.2 to 1.4 t / m 3. The difference in density depends on the moisture level, which can be unstable (standards allow fluctuations within 3%).
• Strength - bending 9-12 MPa, tensile - 0.4 MPa. As you can see, the slab does not react well to both bending and tension. Longitudinal deformation is another matter. In this case, the resistance of the DSP is so great that it can be used to reinforce the load-bearing wall of the house.
• Standard humidity is 9%. Moreover, after a daily stay in water, this indicator increases only up to 16%, and the linear dimensions of the sheet change by 0.3% in length and 2% in thickness.
• Water vapor permeability - 0.03 mg / (m · h · Pa). Due to the porous structure, cement-bonded particle sheets are "breathable" materials, which, in combination with the overall environmental friendliness of the base, increases the attractiveness of this option in the eyes of builders of houses that are safe for people's health.
• Thermal conductivity coefficient - 0.26 W / (m · K). Such a sheet cannot be compared with pure wood (0.15), but compared to brickwork (0.7), cement-bonded particle boards look very decent, and compared to pure concrete (1.75), it is absolutely amazing.

However, no matter what technical characteristics the DSP plate demonstrates, the use of this material is associated with the solution of a narrow set of tasks, which will be discussed below in the text.

Disadvantages of cement slabs and shavings - what are they

After reviewing the characteristics, I would like to mention the disadvantages of the DSP. First of all, these should include the significant weight of the sheet, which makes it difficult to transport the panel to the upper floors or the roof. However, to form a roofing cake, usually 10- or 16-mm sheets are used, the weight of which does not exceed 75-85 kilograms, which is quite acceptable for a roofing team of 3-4 people.

The second serious disadvantage of CBPB is its low flexural strength. Such slabs are not suitable for the construction of arches and other architectural forms with curved lines. However, if necessary, the same OSB sheet can replace the cement particle board.

Practice of application in outdoor works - where it comes in handy

Due to the high frost resistance and acceptable moisture resistance, which any cement-bonded particle board possesses, the use of this material in outdoor work will be justified even in the case of using thin, 8-mm sheets. DSP is used in the construction of ventilated facades. In this case, beacons are stuffed onto the wall of the building, on top of which sheets of cement and shavings are laid. Further finishing depends on the degree of grinding on the outside of the panel. Unsanded material can be covered with plaster without forgetting about the reinforcing mesh. The sanded sheet is usually painted or left as it is.

In addition, due to the high moisture resistance of DSP, the use of this material is also possible in the context of a base for the assembly of removable or non-removable formwork. High rigidity, minimal warpage from moisture and actual water resistance make this material an ideal formwork for reusable or single use. Moreover, the sheets are easily processed, making it possible to assemble structures of even very complex configurations. And as a fixed formwork, CBPB has an additional advantage - the sheet will work as a waterproofing agent, simultaneously insulating the base.

Sandwich panels based on sheets of shavings and cement are also very popular. Such building materials allow you to assemble a house in a matter of months. In this case, the main advantage of DSP is the sheet thickness, which reaches 3.6 centimeters and makes it possible to increase the overall rigidity of the structure. Therefore, from sandwiches based on such sheets, you can build houses of virtually any number of storeys. True, a sandwich panel made of heavy-duty sheet 36 mm thick weighs more than 400 kilograms, which somewhat complicates the construction process.

DSP slabs are used not only for floors or attic floors. In this case, the panels are used as cladding, they are stuffed onto the frame racks with preliminary laying of a vapor barrier. Moreover, from the outside, the slab is first primed, increasing the adhesion of the surface, and then painted or plastered, getting an outwardly attractive facade. Well, the inner layer of mineral wool, located between the frame racks, will be responsible for the thermal insulation in the frame house, so the heat resistance of DSP in this case can be neglected.

Interior decoration and flooring - for every taste

If you have a DSP board, the use of this material in internal works limited only by your imagination. The sheets produce high quality rough wall cladding or frame cladding. Moreover, they can be covered with a layer of plaster or primer and pasted over with wallpaper or tiles, so DSP goes to wet areas (bathrooms, showers, toilets, kitchens) and to ordinary rooms. Thick sheets can be used when arranging interior partitions.

Moreover, 24- or 36-mm panels are used even without a frame. They are folded in 2 or 3 sheets, fixing them to the ceiling and floor.

Such a move allows you to speed up the arrangement of the interior, and thanks to the wood base in the DSP, you can not only screw in self-tapping screws, but also hammer in nails by hanging pictures, mirrors, shelves or decor. DSP in the interior is valued for its high fire resistance. This material not only resists open flames for 50 minutes, but also does not emit toxic combustion products. Therefore, such panels are classified as a low-combustible type of building materials G1 - the DSP on its own will not burn under any circumstances.

However, the most common area of ​​application for such slabs is interfloor, basement or attic floors. DSP for floors or ceilings is more than willingly bought. With this material, you can insulate a concrete slab, strengthen the frame floor, and increase the moisture resistance of a wooden base. Floor installation ( basement overlap) based on DSP assumes the following operations:

• Waterproofing and soundproofing are placed on the support post.
• A lag (5x8 centimeters bar) and cranial bars are laid on top. The placement step is 60 centimeters.
• A boardwalk or a thin particle board is mounted on the bars - the use of thick slabs for the rough type floor will be unjustified for practical reasons. After all, only the insulation holds the sub floor.
• Lay on top of the flooring waterproofing membrane and a layer of insulation. Moreover, the thickness of this layer should be 2-3 centimeters less than the depth of the log - this space will go under the ventilation gap.
• At the end, a DSP sheet is laid on the lag and fixed on ordinary countersunk head screws.

Acting in this way, you can get a warm floor with excellent strength characteristics even with a 20 mm thickness of cement-bonded particle board. Panels with a thickness of 24-36 mm can be laid on sand-cement bedding or compacted clay, abandoning the support posts. This technology is not suitable for residential buildings, but for storage facilities, a thick cement-bonded particle board, the technical characteristics of which indicate a readiness to withstand a large operational load, will come in handy.

CBPB is a product for a wide range of construction purposes, the basis of which is made up of two diverse components: cement of mineral origin, and wood shavings - natural organic raw materials.

Plates combine the advantages of concrete and fiberboard products, demonstrate great 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 chips equal to 24%.

For effective enveloping of the two types of components, hydration, binding fillers are introduced in an amount equal to about 2%. The entire working mixture is wetted with water, the mass fraction of which should not exceed 9%.

Preparation of raw materials

At the stage of raw material preparation, the shavings are crushed and dispersed into two fractions. Pieces with smaller dimensions will be located in the outer layers in the manufacture of CBPB boards, with larger parameters - in the inner core of the board.

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 shavings in relation to biological contamination, an increase in the strength of the fibers, which perform a reinforcing function in the composition of the composite.

Mixing and pressing

At the next stage, shavings, a solution of additives and cement must be combined and thoroughly mixed, achieving a completely homogeneous mass. This can only be done with the help of special high-power mixers with variable intensity of rotation. Wood pieces are not very well covered with mineral cement powder, so sometimes a small portion of fuel oil and industrial (technical) oil is added to the mixture.

Upon reaching absolute homogeneity, the mixture is stacked in layers in pallets, which are stacked on top of each other and placed under a press. After exposure to high pressure, the compressed cement-bonded mass, fixed in the molds with latches, is transferred to thermal chambers, where heating is carried out during one work shift.

Then the molds are removed from the chamber, returned again under the press, where the locking clamps are removed. For the final acquisition of all operational characteristics, the formed DSP-sheets are transferred to the warehouse, where they are kept for 2 weeks, periodically drying it with an air stream heated to 100 ° C.

At the final stage, the slabs are formatted in size, packed, and sent to the storage rooms for finished products.

Sheet sizes

The national standard regulates the subdivision of the material according to the general physical and mechanical parameters and dimensions of the DSP-plates into 2 groups. The length of the products is 3.2 and 3.6 m. In the first group, fluctuations of the parameter in one direction or another by 3 mm are allowed, in the second group - by 5 mm.

The standard widths are 1.2 and 1.25 m, the tendency in the permissible variation of the parameter is the same. Errors in the geometric parameters of products of the 2nd group are always greater.

The thickness of the sheets is different:

• in one category, it reaches 10 mm with a minimum of 8 mm;
• in the other - 16 with a minimum of 12 mm;
• in the third - 28 with a minimum of 18 mm;
• in the fourth - 40 with a minimum value of the range of 30 mm.

The thickness fluctuations 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 the strict perpendicularity of the intersecting sides of the slabs, the normalized dimensions of the diagonals, the 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 stipulates the number of flaws, the presence of which is permissible. The possibility of chips on DSP slabs is completely excluded, the number of possible stains of any origin and dents is strictly regulated. The requirements for products with the designation TsSP-1 are more stringent than for products TsSP-2. Delamination, foreign inclusions, mechanical defects are completely excluded for the entire range of materials.

physical characteristics

Physical parameters are of decisive importance for evaluating the operational capabilities of DSP-sheets.

The weight

It is possible to plan the conditions of transportation, installation, knowing the value of the weight of the DSP, which is determined by the size and density of the products. The minimum specific weight of cement-bonded particle boards is 1100 kg / m 3, the maximum is 300 units more.

As an example: one sheet with a density of 1300 kg / m 3 and dimensions of 2700 x 1250 x 10 weighs almost 44 kg (43.88).

From this it is obvious that the material is very heavy. One cubic meter of panels will weigh almost one and a half tons. The purchaser must prepare thoroughly for the delivery and subsequent use of panels of this weight.

Humidity

The normalized humidity of the DSP is 9%, the standard legalizes fluctuations in the value by a third in the direction of increasing or decreasing. The rather large value of possible deviations is apparently due to the peculiarities of the structure of the composite.

DSP-products during control tests per day can increase in size in thickness by 2%, which occurs due to moisture absorption in an amount that can be 16% of the initial mass of the sheet. This factor must be taken into account when storing slabs and installing it on the front of a house, outside industrial structures.

Strength

The presence of wood fibers in the composite made it possible to impart good strength properties to the material. So, the maximum strength under bending loads for the thickest sheet is 12 MPa, for the thinnest one - 7 MPa. If tensile forces of 0.35 MPa are applied to the slab, it will not change. Since the strength of cement-bonded particle 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 non-sanded ones. For the manufacture of formwork, it is quite possible to purchase slabs that have not been subjected to grinding. Facade decoration can be made beautiful both with the help of polished products, and by installing DSP-boards with roughness, which have undergone additional decorative processing.

Fire safety

The chemical composition and technological features of the production logically result in the high resistance of DSP panels to ignition, the minimal tendency, which is practically zero, to flame propagation. In the case of strong heating of the cement-bonded 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 slabs are fireproof material.

Wood shavings themselves burn great, but as part of the composite they are soaked through and through mineral products, surrounded by particles of Portland cement, which reduces fire hazard to zero. The flammability of DSP panels in accordance with the generally accepted classification is designated as G1.

Frost resistance

One of the important characteristics of DSP boards is frost resistance. The ability of panels made from a mixture of cement and shavings to withstand frost is impressive. Even if the finish 50 times during the winter undergoes defrosting and then freezing (although such frequent temperature changes are extremely rare), the strength of the coating will decrease by only 10%. DSP plates can be used outdoors without problems for half a century.

Varieties of DSP

The production of CBPB boards in Russia has been implemented in industry for about thirty years. During this time, domestic and foreign technologies have changed, which led to the appearance on the market of new similar materials, for example, such as:

• fibrolite;
• arbolite;
• xylolite.

The composition of fibrolite includes cement and such thin wood fibers that they are called wool. The material is soft to the touch, good sound insulation, high strength and resistance to cracking.

Arbolit is a mixed composite consisting of cement and wood chips, shavings, pieces of reed stalks and rice straw. The material is not very durable, suitable for the construction of lightweight partitions. Unlike DSP-slabs, which are quite applicable for flooring, arbolite will not withstand such a load.

The peculiarity of xylene is increased resistance to water, achieved due to 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 a large amount of water may enter.

Application features

Cement-bonded particleboards can be laid on ceilings, installed as partitions or main walls, sheathed the frames of houses, trim part of the walls above the foundation (basement). It is known to use a cement-bonded particle board for a floor instead of a cement screed. The material copes well with the load, and also provides thermal insulation.

Installation of slabs

For fastening structures, galvanized screw-shaped nails are suitable, when choosing the length of which, the thickness of the sheet and the total dimensions of the pie should be taken into account. You can also use self-tapping screws, for which holes are pre-prepared.

Due to the large mass of panels Special attention care should be taken to adhere to the recommended distances between fasteners. To do this, it is advisable to use special tables, which are compiled taking into account the value of the sheet thickness and the location of the attachment.

In addition to fixing around the perimeter, intermediate fixings 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.

Plates can be formatted with ordinary high-quality tools designed for working with materials of high hardness.

External finishing of slabs

Sanding the surface layer is not worth it, because this can lead to an increase in the tendency to absorb moisture. When joining wall structures, there may be a need for leveling the height, which is somewhat more difficult to do than when working, for example, with a brick. In such situations, any grinder, the main thing is that the size of the grains fits up to No. 25, then damage to the structure will not take place.

For the finishing of DSP, surfaces are usually plastered and painted. This reduces their ability to absorb moisture. The material lasts longer, does not crumble.

Joints

When working with DSP, it is important to leave a sufficient distance at the joints, which inside the room should be at least 4 mm, outside - 8 mm. If this requirement is ignored, cracking of the seam joints may occur. A large enough space is covered with elastic plastic or sealant.

External joints are sometimes decorated with slats or profiles from aluminum alloys, inside at the joints you can lay a special elastic cord.

In the construction of private housing construction, customers wishing to provide the building with the maximum fire safety, choose a project option with the manufacture of SIP panels from DSP sheets. At the same time, an inorganic insulation of mineral origin is placed between two layers made of a mixture of cement and shavings. The resulting structure demonstrates strength, environmental friendliness, and fire safety.

Erecting any structure, and even more so if it is residential, each of us is interested not only in its safety, but also in its environmental friendliness. And therefore, when building houses, they are increasingly beginning to use cement-bonded particle board DSP.

Thanks to their natural and high-quality ingredients, they do not have a harmful effect on either human health or the environment.

These plates are used not only in prefabricated structures, but also for internal and external construction work, namely for the manufacture of ceilings, window sills, flat roof, various storage facilities, communication boxes, mobile boiler rooms and residential containers and much more, which are subject to the most stringent requirements for moisture resistance, soundproofing and fire safety.

DSP slab is a universal building material in the form of monolithic sheets with a smooth and hard surface, produced in accordance with the requirements of GOST 26816-86.

Cement particle boards are made from cement, tree shavings conifers, mineral substances and water. Due to the presence of silicate cement, there is no need to use synthetic glue, and therefore, there are no such harmful substances like phenol, formaldehyde, etc.

Additional application information is available in the collection of articles. The most low price DSP from leading manufacturers.

ANY CUTTING CEMENT-CHIP PLATE CUTTING IN THE CUSTOMER'S SIZE.

When choosing a cement-bonded particle board, it is necessary to consider where they will be installed. Standard sizes DSP: length 3200 or 3600 mm, width - 1250 or 1200 mm.

When choosing the thickness of the sheet, it is necessary to take into account that with an increase in the thickness of the sheet, an additional load on the structure occurs and at the same time, under high loads and influences, the cement-bonded particle board can break. Based on all this, the recommended thicknesses:

20 mm - 36 mm - for the installation of canopies, window sills, etc.

10 mm -20 mm for fixed formwork

8 mm for subfloors

12 to 36 mm for frame construction

10, 12 mm for partitions

12, 16 mm for external cladding

CEMENT-CHIP PLATE GOST 26816-86 (Kostroma)
Name	The size	Thickness, mm	Unit.	Weight, kg	Quantity, pcs.		PRICE per sheet
					in a pack	in the car	from the plant in Kostroma	Mashnorma with delivery to MO	from a warehouse YUG Voskresensk
									small opt.	retail
DSP	3200x1250	8	sheet	42	82	492	606	650	653	730
DSP	3200x1250	10	sheet	52	66	396	715	769	771	863
DSP	3200x1250	12	sheet	62,4	55	330	807	873	875	978
DSP	3200x1250	16	sheet	83,2	41	246	1 005	1 093	1 095	1281
DSP	3200x1250	20	sheet	104	33	198	1 224	1 333	1 338	1493
DSP	3200x1250	24	sheet	124,8	27	162	1 429	1 563	1 564	1746
DSP	2700x1200	8	sheet	35,25	87	609	553	589	592	597
DSP	2700x1200	10	sheet	42,12	70	490	647	691	700	706
DSP	2700x1200	12	sheet	50,54	58	406	732	786	787	794
DSP	2700x1200	16	sheet	67,39	43	301	856	928	925	933
DSP	2700x1200	20	sheet	84,24	35	245	1 030	1 119	1 117	1127
DSP	2700x1200	24	sheet	101,09	29	203	1 190	1 297	1 290	1301
Packing price									400 rub.

For more details, see the PRICE LIST tab

Basic properties of DSP

- Environmental safety: Absence in the composition of formaldehyde resins, asbestos, harmful impurities;

- Workability parameters similar to wood (with higher strength parameters);

- High fire safety (G1 low-combustible) and fire resistance;

- High frost resistance and thermal conductivity (0.216 Vi / mK);

- High biological resistance to fungi, termites, rodents and insects;

- Suitability for use inside and outside both utility and residential premises;

- Various possibilities of surface finishing: plastering, painting, cladding with wood, plastic, ceramic tiles, etc .;

- High climate resistance.

Specifications	Indicators
Density	1100-1400 kg / m 3
Humidity	9 +/- 3%
Swelling in thickness in 24 hours, no more	2%
Water absorption in 24 hours, no more	16%
Flexural strength, not less, for thickness
10, 12, 16 mm	not less than 12 MPa
24 mm	not less than 10 MPa
Maximum deviations in plate thickness
10 mm	+/- 0.6 mm
12, 16 mm	+/- 0.8mm
24 mm	+/- 1.0mm
Limit deviations along the length and width of the slab	+/- 3 mm
Deviation from flatness, no more	0.8 mm
Flammability	G 1
Frost resistance, (reduction in bending strength after 50 cycles), no more	10%

Application of csp slabs

What's new in the field of modern production of CBPB?
New technology production of cement particle boards allows you to obtain products with extremely low thickness variation. This development of events became so successful that in this regard, a steady demand has arisen for the sale of CFB boards with a thickness 4 mm. This is the minimum tThickness for them, which can be produced. The first batch of 6 mm slabs is produced in Magdeburg and was so high quality that all the plates were within thickness tolerance± 0.2 mm. These fine tolerances make the costly grinding process unnecessary. In addition, the slabs have smooth surfaces consisting from very small particles, and
particle size gradually increase towards the center boards. Not new but not so wide yet famous csp slab embossed and coated in different configurations, such as brickwork, wooden planks or a natural stone. Especially in Japan a large number of people who want to buy csp these boards made csp sale very successful business. Over 90 % of Japanese people buy such plates with embossed and coated surface and used for cladding outside walls.
Based on success in Japan, several companies in many other countries have started test market for the sale of csp... In its simplest form, paint is applied to the surface usually by roller or spray in the desired colors, for which currently availablevarious suitable paints and coatings. In a higher quality version, the coating is performed made of reinforced hard plastic with embossed the surface that turns out so tough and durable that it can match the strength become.

Where to buy DSP sheets?

Not entirely new, but very interesting application of cement particle board as shingles. In Hungary, the use of painted and unpainted tiles on walls and roofs is common, but roofs and walls made from tiles developed in some states in the western United States are of special interest. It looks beautiful, no doubt, but it is flammable. Nevertheless, the sale of csp is in full swing.

Very interesting is the successful application of large prefabricated walls and floor elements assembled from CBPB panels. All elements consist of panels arranged in a composition with metal or high-strength plastic spacers and have the necessary internal reinforcements. Each element is precisely cut to exact dimensions at the factory, including openings for cables, pipes, ducts, doors and windows. On site, prefabricated elements only need to be installed and filled with concrete. Before the concrete is poured, pipelines for water, gas and electricity will first be laid in the cavity of the walls. After the construction of the building, the outer walls are insulated with a 7 cm thick sheet of expanded polystyrene, which are covered with a thin layer of plaster or elastic finish. Only three workers are needed to install all walls and floors for one-story buildings per week. Thanks to the system of prefabricated structures, it is fast, high quality and at an affordable price per sheet. This efficient building construction method does not generate a lot of dust, waste and normal noise on the construction site, and provides a quick return on investment. DSP with a thickness of 10, 12 and 16 mm are used as external and interior cladding walls (on a lathing frame), facing of columns or crossbars of public, industrial and agricultural buildings.

Moisture resistant partitions - DSP with a thickness of 12 and 16 mm are used in rooms with high humidity. This is due to the corresponding physical and mechanical properties of the material. DSP can be used in partitions of sanitary facilities of buildings for various purposes.

Interior wall decoration - CBPB, possessing certain fire-retardant properties, is an environmentally friendly and moisture-resistant material, therefore it is successfully used for internal and exterior decoration residential premises and public buildings with dry and normal operation.

Floors - DSP 16, 24 mm thick can act as the following floor elements: base for various coatings, underlayment, leveling layer, finished floor with top coating. DSP with a thickness of 24mm can be used for the installation of pre-fabricated floors on a bulk base in storage and utility rooms. This excludes wet processes, which allows you to work at low temperatures. In addition, slabs can replace cement screed. The advantages of this solution are: reduction of labor intensity of work; opportunity to lead renovation work without stopping production. The thickness of 8 mm is also a popular item and is always present in our warehouse.

Removable, non-removable formwork - slabs with a thickness of 12, 16 and 24 mm can be used as removable or non-removable formwork for building foundations of buildings. The simplicity of the formwork design will reduce labor costs and achieve significant cost savings when performing zero cycle work.

Window board - CSP window sills with a thickness of 24mm are ideal for any modern interior. According to its characteristics, a DSP window sill is stronger and more durable than its analogue made of wood.