For comparison with other materials, we suggest using characteristics such as:
- fire safety;
- ease of installation;
- resistance to mold and disease;
- builder reviews;
- reviews from residents and home owners.
Fire safety and flammability class
In this parameter, DSPs are superior not only to polymer insulation and PVC, but even to wood concrete. DSP is assigned a flammability class - G1, that is, they are difficult to burn. Due to the large proportion of cement, each of the shavings is surrounded by cement stone, so to start the pyrolysis process in wood located close to the surface exposure to temperatures of 500 degrees or more for half an hour is required.
Once the thermal effect is removed, the pyrolysis process is quickly completed, because close contact of many chips is necessary for the self-sustaining reaction to begin.
If the temperature exceeds 700 degrees, and this effect lasts for over an hour, then pyrolysis of the chips begins throughout the entire depth of the slab.
At this temperature, any building materials sharply lose strength, and concrete completely collapses. Therefore, after a fire of such magnitude, the house cannot be repaired, unless the fire was local in nature and burned only a small area of the house.
Even the beginning of the pyrolysis process does not lead to the release of particularly toxic substances, because the main components of pyrolysis gas (smoke) are:
- nitrogen;
- carbon dioxide;
- carbon monoxide.
Only carbon monoxide poses a serious danger, but, firstly, very little of it is released during the pyrolysis process, and secondly, during a fire, combustion occurs in conditions of lack of oxygen, so carbon monoxide is released everywhere in huge quantities.
Therefore, DSP one of the safest in terms of fire resistance of materials and is comparable to gypsum plasterboard and fiberboards. It is much safer than finishing from:
- plywood;
- boards;
- wood concrete;
- insulating fiberboards;
- foams and plastics.
Ease of installation
Due to the high cement content of CBPB much heavier than most others finishing materials.
The weight of thin sheets is 25–45 kg, so a minimum of 2 people are required to work with them.
To work with thick sheets, 5-6 people are needed, because the weight of a sheet with a thickness of 26 mm exceeds 200 kg.
Cutting the material is also fraught with difficulties, because it is necessary to use high-speed circular saw and diamond-coated blade or carbide tipped.
Therefore, in terms of ease of installation, DSP is inferior to most finishing materials. After all, his weight is equal sizes and thickness, exceeds the mass of any other finishing material, including LSU and wood concrete.
Resistant to mold and disease
Due to the fact that the wood in CBPB does not have direct contact with air, it is less susceptible to mold and disease.
In addition, for products manufactured in accordance with GOST requirements, the chips are pre-soaked in a solution of lime or other reagents, increasing biological stability wood
Reviews from builders and residents about wood-cement blocks
To collect the most reliable reviews about the characteristics, application and prices of DSPs, we turned to forums, whose users include:
- professional builders;
- experienced engineers;
- owners of apartments and houses;
- people with experience in carrying out independent repairs.
Here list of forums with DSP discussion threads:
- Forumhouse;
- Forumgrad;
- NGS House;
- Vegalab;
- We are building a house;
- Mastergrad;
- Ideas for your home;
Areas of application of DSP
DSPs are widely used in many construction fields due to their technical characteristics. Modern products based on cement and wood shavings, they compete with plasterboard, fiberboard and plywood.
Loft-style room
DSP façade finishing
Houses whose facades are lined 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 under stone and brick 
High strength, resistance to negative impacts environment and aesthetic appearance of decorative CBPBs allow them to be successfully used for facade works in the construction of private houses 
Variety of front decorative layer made of stone chips
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 joists, it is recommended to choose a product thickness of 24 mm or more to ensure sufficient strength of the floor covering.
Fastening by joists
When working indoors, it is necessary to preparatory activities– seal the holes in the base, if any, fix the joists, put insulation and vapor barrier material.
Preparatory work before laying CBPB on the floor
The plates are fixed using self-tapping screws, with a screw with countersunk head should be immersed in the body of the wooden beam by 20 mm. The result is a perfectly flat subfloor with excellent performance characteristics.
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 made from SIP panels based on CSP or independently erecting walls between which mineral insulation is located. The slabs are fixed using wooden or metal sheathing, the frame is sewn up around the perimeter, and then window and door openings are cut out. The sheathing elements are installed in 60 cm increments so that the insulating material can be firmly fixed between them. Plates are taken 10–16 mm thick and fixed with galvanized screws.
House by frame technology using DSP
Related article:
Do-it-yourself frame house: step-by-step instructions. Do you want to build a frame house with your own hands? The step-by-step instructions given in this article will help you understand all the intricacies quickly and easily, even for beginners.
Interior finishing works
The environmental safety of cement particle boards has made it possible to use them as a full-fledged finishing material indoors for any purpose. Due to its high moisture resistance, this material has significantly replaced plasterboard, which is not recommended for use on walls in wet rooms.
Leveling the walls and floor in the bathroom
DSPs are used for effective leveling of walls and their subsequent finishing with decorative finishing materials. However, in some interiors (loft, industrial, high-tech and others), where a raw concrete texture is appropriate, DSP is used to create accent surfaces and even to cover entire rooms.
Accent wall in the bedroom at the head of the bed is made of cement panels
Fastening the plates depends on the thickness and dimensions of the sheets, and, accordingly, their weight. Heavy products are fastened along the sheathing, and light ones are secured using a special solution or mastic.
Production of SIP panels from DSP
SIP panels made of DSP 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
A common distinguishing feature of the material is its high fire and environmental safety. Possibility of quick construction of a private house and significant savings on facade finishing works.
Assembling a house kit from SIP with DSP
Application of DSP for formwork in monolithic construction
There are a number of advantages of installing permanent formwork of this type when producing monolithic works:
- Reduction installation work and the total construction period of the facility.
- The surface is ready for finishing.
- High profitability of the construction of the facility as a whole.
- Guarantee of a strong and reliable structure.
Monolithic construction using permanent DSP formwork
Installation methods
DSPs can be mounted different ways depending on the purposes 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.
Preparing for the installation of a DSP coating
Before starting work on arranging a rough surface made of CBPB, the base of the floor must be properly prepared. For example, if the material is laid on a wooden base, old or rotten boards must be dismantled and replaced with new ones
It is important to seal all the cracks with putty, and the wooden base is primed for better adhesion to the glue on which the slab covering will be mounted.
If 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. When laying CBPB Preliminary leveling of the surface must be carried out on the ground - this can be done by pouring a 20 cm thick sand-gravel mixture onto the ground and compacting it.
The process of building a gazebo with a DSP floor
The best option is to lay CBPB slabs on logs. In this case, if it is planned to install the foundation directly above the ground, supports for the logs are installed on the ground, and hydro- and thermal insulation is also laid. The distance between the supports can vary 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 for working with DSP:
- timber for logs (section 150x100 or 50x100 mm);
- DSP boards in the required quantity;
- antiseptic solution for timber;
- sawing tool (for example, a hacksaw);
- materials for waterproofing and insulation;
- tools for taking measurements (tape measure, pencil);
- fastening material;
- drill.
Fastening floor slabs using self-tapping screws
How to paint a DSP board
To give the DSP boards an attractive appearance The simplest way is coloring. After appropriate preparation of the surface, apply two layers of paint using a roller or. Most often, in order to paint DSP, they use:
Acrylic paints . This paint has good adhesion and is highly wear-resistant. If financial capabilities allow, it is better to use paints that contain a solvent, but water-soluble facade acrylic paints, if applied correctly, will last from 3 to 5 years.
Latex paint . This coating is resistant to alkaline and weak acid solutions and is easy to wash and mechanically clean with detergents. Besides. Painting works You can do it yourself, which will save you 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 the appearance of mold and other fungi. The coating is resistant to weather conditions and detergents, and its service life will satisfy even the highest requirements.
Before you begin painting DSP, it is necessary to take into account that the use of alkyd paints is undesirable, since direct contact with alkalis may cause cracking and peeling of the coating.
1 What are such slabs made of? Are additives needed?
DSP is a multi-component sheet building material, the manufacturing process of which uses Portland cement and wood shavings. In addition, the board contains special chemical additives that allow the basic materials to coexist without any problems. Indeed, under normal conditions, wood is not friendly with cement, which provokes excessive moisture and associated warping and rotting of the material.
For DSP manufacturing Portland cement and shavings are used
The use of special additives (up to 2.5–3% of the total volume) eliminates Negative consequences the proximity of wood and cement, giving the DSP such useful properties of the first and second components as heat resistance and fire resistance. Moreover, due to the percentage ratio - 24% of wood accounts for 65% of cement - the slab also acquires other positive traits: high strength, frost resistance, soundproofing properties, vapor permeability and complete ignoring 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 explained by enviable adhesion. At the same time, chemical additives in CBPB are not environmentally harmful materials, since they do not contain either asbestos or formaldehyde.
Technical characteristics of DSP
During production cement compositions high strength are mixed with wood shavings of various fractions, water and a number of chemical reagents (for example, liquid glass or aluminum salts). By reacting with wood shavings, chemicals mineralize them, thereby increasing the strength and durability of the slab.
Multi-layering is the main quality of the slabs, guaranteeing 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 fractions are located outside. After preparing the cement-bonded particle board, it is placed in layers in special molds under a press, from where the finished multilayer CBPB with smooth surface On the one side.
DSP: the technical characteristics of the board are such that it does not require the application of finishing putty. It is enough to paint the slabs after placement. In some cases, applying a thin coat of primer before painting will be sufficient.
DSP floors: laying nuances
In general, the installation of CBPB slabs is carried out in exactly the same way as the installation of OSB slabs.
When carrying out work, it is important to follow several rules, and then the base of the floor will be made of the highest quality possible: . wooden beams for logs must be treated with compounds that prevent rotting
Special compounds can be replaced with machine oil;
- wooden beams for logs must be treated with compounds that prevent rotting. Special compounds can be replaced with machine oil;
Antiseptics for wood impregnation
- when installing slabs on concrete screed for logs you can use timber of a smaller cross-section - up to 50x50 mm. This will save useful space;
- when installing logs, you should monitor their level - it must be strictly horizontal;
- before installation, the CBPB boards are laid out along the joists - this will allow you to determine which of them need trimming if necessary;
- the glue must be mixed well before use;
- Compensation gaps along the walls will allow you to avoid deformation of the DSP base.
Another example of the use of DSP
DSP is a pretty good material if you use it to create a flat base. It is not difficult to work with it, but due to the large mass of sheets, it is better to get an assistant.
Installation features
Slabs based on a cement-bonded particle mixture are easy to process. For cutting you will need a hacksaw with fine teeth. Large teeth contribute to the formation of dust and make the edges of the part uneven, so this tool is not suitable for sawing CBPB.
When arranging a dry screed, a concrete or wooden covering is used as a base for the slabs. It is also possible to lay the sheets on a frame, the cells of which are pre-filled with insulating material (mineral wool, foam plastic, expanded clay, or another type of dry filler).
The plates are fixed with self-tapping screws or using an adhesive mixture. The glue must be evenly distributed over the surface of the material with a notched trowel, leaving no gaps. This will help avoid deformation of the material.
It is also important to fill joints generously adhesive composition to obtain a monolith. Self-tapping screws are screwed in at intervals of 35-50 cm
When cladding the external walls of a building with DSP, an installation method is used that involves arranging sheathing. Frame parts can be wooden or made of metal profiles. When choosing a tree, it is recommended to pre-treat it with an antiseptic solution to protect against premature aging and microbiological processes.
To create thermal protection for a home, it is recommended to lay between the walls of the house and the DSP thermal insulation material. Preference should be given to basalt wool, which has good vapor permeability (the walls will breathe) and high resistance to moisture (low hygroscopicity will prevent the absorption of moisture into the layers of the insulation).
The finishing of slabs made of cement-bonded particle board involves treating the surface with a primer, laying a reinforcing mesh and applying a layer of decorative plaster. The facade is painted in a color that echoes other architectural elements of the exterior.
Arrangement of the floor using DSP
Let's consider the arrangement of a floor made of cement-bonded fiberboard on joists using the example of a balcony.
Step 1. A layer of insulation is placed under the joists. The logs are installed parallel to the walls at a distance of about 30-40 cm from each other.
The joists are installed on top of the insulation
Step 2. Cross bars are installed and the sheathing is created. Between themselves wooden blocks connected using metal corners and self-tapping screws.
Cross bars installed, sheathing ready
Step 3. The space between the joists is filled with insulating material.
Laying insulation
Step 4. DSP slabs of the required sizes are laid across the longitudinal joists. The width of the piece of material should be slightly less than the width of the balcony (by 5-10 mm).
Laying CBPB boards
Step 5. The slabs are fastened with self-tapping screws to the joists. The gaps between the DSP boards are sealed with an adhesive composition.
Fixing slabs with self-tapping screws
Video - Laying tiles on DSP
DSP in the process of creating the foundation
Slabs based on cement and shavings can be used to create formwork, which helps when pouring the foundation. The thickness of the material depends on the required dimensions of the foundation and ranges from 16 to 26 mm.
Strengths of DSP formwork.
The ease of installation of slabs reduces labor costs by an order of magnitude and shortens the time required for work, thus reducing the cost of pouring the foundation. A special paint can be applied to the outside, 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 pouring and drying of the concrete solution.
The versatility of DSP allows this material to be used in the construction of housing based on a frame, for leveling floor and wall coverings, as well as during installation soft roof in buildings of any type. DSP flooring boards receive good reviews from builders around the world due to the high quality of the material and excellent characteristics.
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 of laying finished panels on various types of bases:
- a flat surface of a wooden or cement floor;
- wooden logs installed at equal intervals.
Ceramic tiles can be glued to the surface of the slabs, flooring can be laid, and laminate or parquet can be laid. The properties of the material are preserved for decades, provided that the installation technology is followed.
Scope of application of CBPB boards
As mentioned above, DSP boards, the use of which ensures high mechanical strength of the structures being created, are widely used in construction, repair and finishing works ah, in particular:
- In the manufacture of formwork foundations and other monolithic reinforced structures. The use of DSP significantly 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.
- When covering walls and erecting . In most cases, DSP sheets are attached to a pre-assembled metal or wooden frame. The thickness of the sheets in this case ranges 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 DSP boards for flooring provides high mechanical strength, as well as high thermal, hydro and sound insulation. The thickness of the material is selected based on effective loads and the distance between the lags, however, the use of CBPB boards with a thickness of less than 14 mm is not recommended.
- Application for facade at home allows not only to significantly reduce the time required for exterior finishing work, but also provides high-quality waterproofing 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.
Slab production
The production of CBPB consists of the following stages:
- Aluminum, liquid glass, and various salts are included in aqueous solutions that are loaded into special mixers.
- Mineralization of raw materials occurs with the gradual introduction of wood chips, consisting of different-sized fractional inclusions, into these solutions.
- Then cement and a little water are added to the composition.
- The mass is thoroughly mixed to obtain a homogeneous consistency and sent under a powerful press.
- The result is a thin but durable product with a smooth surface.
The smooth surface of the slab is obtained due to the special distribution of chips in its structure - larger fragments are located 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 does not require additional leveling, but can be immediately used to make a subfloor and serve as a high-quality, even base for laminate, tiles and other types of finishing coating.
DSP production technology
From the name itself it becomes clear that the main components of this material are cement (65%) and wood shavings(24%). All this is mixed with water (8.5%), and various additives are added to the resulting mixture to improve the technical characteristics of the slab (2.5%).
Two types are used in the production process of CBPB boards: chip material. They differ in size: small and medium. The slab itself has a three-layer structure, so medium-sized chips are poured into the second layer, and small chips into the first and third. The production process itself 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.
Cement particle boards used in construction
DSP is a cement-bonded particle board, and the name fully reflects the composition of this material. DSPs are made from a mixture whose components are wood shavings and cement compounds.
What are DSP and OSB? What is the difference?
The building materials include:
- wood shavings with fractions of various sizes – 24%;
- water – 8.5%;
- special additives – 2.5%;
- Portland cement – 65%.
DSP boards for external use
The production process is quite simple - DSP is made as follows.
- Special aqueous solutions are loaded into special mixers, which include various salts, liquid glass and aluminum.
- Next, wood shavings with fractions of different sizes are gradually added to these solutions - mineralization of the raw material occurs.
- Cement is mixed into the resulting composition and a little more water is added.
- The mass is thoroughly mixed until smooth and then goes under a powerful press.
GOST 26816-86. Cement particle boards. Technical conditions. Downloadable file (click the link to open the PDF in a new window).
GOST 26816-86
The result of this production chain is a finished cement bonded particle board, which is quite thin 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 slab the chips have O larger dimensions than the 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, tile and other types of finishing. Also, no voids are formed inside the DSP during production.
Production of cement particle boards
On a note! Wood shavings are also used as raw materials for chipboard production, fiberboard and OSB boards. The technologies for producing these materials are somewhat similar to the technology for producing CBPB 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, and they can be used to create various partitions indoors. The material is suitable for use for restoration purposes and for interior finishing work. Moreover, it is suitable for both apartments and private houses.
DSPs are used in construction for many purposes
DSP board is distinguished by high environmental friendliness, as it is created from natural natural materials and contains virtually no additional chemical ingredients. That is why the stove is recommended for use both in residential premises and in production.
Cement particle board (CSP)
Using a cement bonded particle board is an opportunity to avoid the labor-intensive pouring of cement screed to create a base. The building material allows you to reduce labor costs and spend less money from the budget planned for leveling floors for laying the finishing coating.
Installation of a DSP board under ceramic tiles
Rules for processing what can be used to saw and drill CBPB boards
Whatever one may say, CSP is a concrete stone filled with shavings (wood filler). Therefore, when the question is raised about how to process the material of this type, cannot be mentioned hand tool. Cutting and drilling can only be carried out with electric tools.
In this case, it is better not to use a jigsaw, although some craftsmen manage to cut thin slabs with this tool. You just have to change the file often - every 5-7 m. Therefore optimal solution– disk cutting tool.
The easiest way to cut CBPB is with a circular saw with diamond blade
As for the disk, there are two options:
- Diamond coated disc with cut out segments. This disc is used for dry cutting. Here you can use discs for cutting stone, concrete or brick - they will all work.
- Discs coated with pobedite, used for cutting wood. DSP is not the strongest material compared to stone, so this tool can handle it.
As for power tools, most often craftsmen use an angle grinder or a circular saw (parquet).
Attention! It is easier to cut CBPB boards with a circular saw because the power tool has a support bar. It is this that allows you to clearly orient the disk in a plane perpendicular to the sheet, and the final result is an even cut of the material
DSP boards can be cut with a grinder with a diamond cutting disc installed on it
As for drilling holes in slabs, either metal drills or pobedit drills are used for this.
Types and characteristics
There are 3 types of DSP:
- fiberboard– heat-insulating 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
Kinds
There are three types of DSP. Studies of the material have accurately shown that each of them does not lose its valuable properties even during multiple cycles of significant temperature increases and subsequent defrosting.
Resistance to fire and particularly humid environments, as well as negative biological factors, was also confirmed. But each type of slab has its own characteristics, consisting in the method of production, differences starting materials, characteristics of finished products and scope of application. Among the types you can indicate.
1. Fiberboard. Its basis is the so-called wood wool, which is long-fiber shavings. The composition also includes inorganic binders.
Wood strips produced on special machines are impregnated with solutions calcium chloride and liquid glass. The raw materials are pressed into molds and subsequently dried. The thickness of such slabs can reach 150 mm, but there are a number of much thinner parameters.
These building elements, with their considerable strength, are excellent for thermal insulation. A similar material is also used as an acoustic material.
It is easy to process and soft, for this reason it is in demand for multifaceted repairs, as well as reconstruction work of various structures. During construction operations with slabs, due to their low weight, lifting equipment is not required, and therefore their use is very economical.
2. Wood concrete. It is classified as lightweight concrete and contains small shavings, sawdust, reed chaff or rice straw. Most quality slabs This variety is made from wood chips.
If the basis of the composition is wood shavings, then the material is usually called wood concrete, if sawdust - sawdust concrete. The two types mentioned have slightly reduced performance characteristics compared to the first one mentioned above.
They are heavier, denser and subject to unpleasant deformations, but they are also somewhat cheaper. The scope of application of wood concrete is quite wide. But mainly it is in demand as a material for low-rise private construction, especially popular in the manufacture of wall partitions, also for finishing and thermal insulation.
3. Xylolite is most often known in application as a coating. DSP for flooring. Plates, similar to those previously described, are made from wood waste, differing from other types in production technology. On sale, the presented assortment pleases with a variety of colors.
The material is distinguished by excellent thermal insulation qualities and increased strength. IN open fire does not burn, but only gradually chars; even when boiling, it does not get wet in water and is only slightly thermally conductive; It has enviable elasticity and is hard like stone, but at the same time it is easily processed like wood: drilled, planed and sawed. In addition to the above, it is ideal for use as cladding for stone, covering stairs, window sills, and roofs.
An important characteristic is the weight of the DSP board. Such indicators are simply necessary to know during construction and other work.
The specified data is very useful during cargo transportation and during installation work. The mass of one module directly depends on the thickness and, knowing this indicator, it is easy to calculate. After all, for every 10 mm there is approximately 54 kg of tile weight.
Installation work: how to cut DSP
You shouldn’t try to cut CBPB with a hacksaw - it’s a thankless task, the process is long, and the result leaves much to be desired. You can use a jigsaw or grinder.
Article
Over the past decades, dry installation technologies have increasingly been used in residential and civil construction. They can significantly improve consumables and raise the level of quality of work performed. In practice, inexpensive and safe cement particle boards are often used. Studying the technical and operational characteristics, areas of application, as well as consumer reviews and a review of current prices will help you understand the benefits of working with this material.
The building element is monolithic slab, which contains the following substances:
- cement – up to 65%;
- coniferous tree shavings – about 25%;
- water – 8.5%;
- additives – 2.5%.
The prepared components are mixed and placed under a press. The formed sheets are heated to 90°C for 7-8 hours, then cooled under natural conditions. Final hardening occurs after about two weeks.
Special additives (antiseptics, plasticizers, hydration admixtures) help improve the quality characteristics of the DSP and enriching them with new properties.
The use of natural raw materials in the production makes the panels absolutely safe for humans. Houses built from slabs are strong with smooth internal and external surfaces. The walls allow air to pass through well, which contributes to the formation of an optimal micro-regime in the premises.
The slabs can be easily subjected to various types of processing:
- cut to achieve the desired size;
- drill holes;
- milling to obtain parts of arbitrary shapes;
- grind the ends to ensure joint strength.
Many finishing options are applicable on the surface of DSP panels:
- painting work with the application of primers and paints made of silicone and acrylic;
- pasting with vinyl trellises or glass wallpaper;
- facing with ceramic tiles.
Externally, the panels are very similar to chipboard (chipboard). These materials should not be confused, since CBPB contains more cement, which means it is much stronger. In addition, it has versatility of use.
Technical characteristics of DSP
- Dimensions.
The thickness of the plates is in the range of 8-36 mm. Geometric dimensions are determined by regulatory documents and are: width 1200/1250 mm, length 2600/2700/3200 mm. By pre-order, the company can produce any, for example, with a length of 3000 or 3600 mm.
- Density.
At a relative air humidity of 6-12%, the figure is 1300 kg/cm2. The maximum swelling of DSP sheets is up to 2%. The maximum water absorption standard is no more than 16%.
- Roughness.
The relief of the panels depends on the degree of surface treatment with grinding equipment. According to GOST, the roughness of untreated CBPB elements does not exceed 320 microns, and polished ones – up to 80 microns.
In practice, there is a cement-bonded particle board with a thickness of about 4 mm. It does not require additional surface treatment, which has a positive effect on the final cost of the products.
Where are DSP panels used?
Material made from cement and wood chips is a high-strength construction base with good environmental friendliness and sustainability. It is widely used in the construction and reconstruction of civil, industrial and agricultural facilities.
DSP sheets form an excellent basis for modular construction. With their help, heat-saving and sound-absorbing walls are created in frame houses. The slabs perfectly level the base of the floor and make it warm, which significantly increases its service life. Dimensional accuracy facilitates faster installation of panels into the frame.
It is advisable to use such slabs in the construction of permanent formwork, fencing, and facade finishing. This greatly reduces work time, provides structures with the necessary reliability and saves overall construction costs.
Excellent performance characteristics make it possible to use slabs for floors, walls and ceilings in wet rooms, for example, a bathroom or bathhouse.
Advantages and disadvantages of DSP panels
The main advantages of using the material:
- high strength;
- absence of toxic and carcinogenic components;
- thermal protection;
- moisture resistance;
- resistance to biological aggression, insects and rodents;
- good sound insulation;
- operation in various climatic conditions;
- acceptable cost.
Feedback from experts confirms the small number of shortcomings of DSP panels.
- Large mass complicates the transportation and installation of elements, which somewhat slows down the work process.
- Brittleness when bending - a smooth base is required for laying slabs. It is advisable to buy building material with a reserve of 10-15% more than planned by the estimate.
- Limited service life - only valid under severe operating conditions.
Negative aspects lead to a slight increase in price construction work.
When purchasing Supplies The different characteristics of the slab must be taken into account.
Sheet selection optimal size depends on the installation location. It should be remembered that an increase in product parameters leads to an increase total load on the design. Therefore, for flooring it is better to buy sheets with a thickness of 8-20 mm, for façade cladding, choose 12-16 mm, and for canopies, window sills, countertops will do 20-36 mm.
The type of front surface is important when finishing interior walls and facades. Manufacturers offer a choice a large assortment panels with smooth and corrugated coating imitating marble, quartz, sand.
Consumer reviews
“I have been professionally engaged in construction work of varying complexity for many years. I noted many advantages of using slabs. In particular, a minimum of time is spent on finishing the facade. Thick panels are easy to cut with a circular saw with a wood disc, thin panels with a regular hacksaw. It is also convenient to mount it on the frame by making holes with a regular drill. No tension is required, the panels are durable, can be laid quickly, forming smooth surfaces.”
Andrey, Yaroslavl region.
“I gained my first experience using DSP while tiling a garage. It turned out that the slabs were not at all difficult to cut and attach. Painted the finished walls acrylic paint, it turned out well. Now it’s time to install the floor in the kitchen. There is one significant drawback: it is profitable to buy the material only in large quantities. The retail price of the sheet is much more expensive. So for small volumes of work, DSP is not worth using.”
Ignat, Moscow.
“According to the designers’ plans, marble window sills were planned for the country house. The price turned out to be too high, so they decided to replace the natural stone with an imitation of cement bonded particle board. It turned out to be a great pleasure to work with such material - it can be easily sawed with a hacksaw and sanded with a plane. I was pleased with the result, and my friends are still confident that we have real marble.”
Victor Tretyakov, Leningrad region.
“Based on reviews from the Internet and the advice of friends, I decided to try DSP panels for flooring. First, a thick slab was laid on a layer of crushed stone. Then insulation, waterproofing and joists with cross members. Let's go to the subfloor thin slabs 16 mm, laid linoleum on top. It turned out inexpensive, smooth and warm. The floor does not allow moisture to pass through and breathes well.”
Nikolay, Stavropol region.
“I wanted to build a fence at the dacha from corrugated sheet metal. I calculated the expenses in advance and it turned out to be a large sum. I started studying the characteristics of other materials and came across DSP. The material turned out to be much stronger and cheaper. I installed the supports myself and welded them to them metal profiles and secured the sheets with self-tapping screws. It turned out durable and beautiful fence. Manufacturers assured that the material is very strong and does not rot. I’ve had it for five years now and have no complaints.”
Evgeniy, Ekaterinburg.
Price table for DSP of various sizes
| Size, mm | Price per sheet, rubles | ||
| length | width | thickness | |
| 2700 | 1200 | 8 | 580 — 660 |
| 10 | 685 — 792 | ||
| 12 | 771 — 870 | ||
| 16 | 906 — 1020 | ||
| 20 | 1094 — 1200 | ||
| 24 | 1263 — 1400 | ||
| 1250 | 8 | 702 — 800 | |
| 10 | 832 — 940 | ||
| 12 | 934 — 1080 | ||
| 16 | 1101 -1260 | ||
| 20 | 1329 — 1480 | ||
| 24 | 1536 — 1692 | ||
| 36 | 2253 — 2500 | ||
| 3200 | 8 | 635 — 730 | |
| 10 | 752 — 853 | ||
| 12 | 851 — 968 | ||
| 16 | 1066 — 1207 | ||
| 20 | 1301 — 1474 | ||
| 24 | 1520 — 1721 | ||
| 3600 | 1200 | 10 | 697 — 789 |
| 12 | 776 — 881 | ||
| 16 | 1007 — 1162 | ||
| 20 | 1247 — 1390 | ||
| 24 | 1472 — 1630 | ||
CSP is a product for a wide range of construction purposes, which is based on two different components: cement, which is of mineral origin, and wood shavings, a natural organic raw material.
The slabs combine the advantages of concrete and fiberboard products, demonstrate greater strength and absolute environmental safety.
Manufacturing process
DSP panels are made in several stages, the most important of which is the stage of raw material preparation. The composition of the composite product includes the following components:
- cement, reaching 65%;
- wood shavings equal to 24%.
To effectively envelop two types of components, hydration and binding fillers are introduced in an amount of approximately 2%. The entire working mixture is wetted with water, the mass fraction of which should not exceed 9%.
Preparation of raw materials
At the raw material preparation stage, the chips are crushed and scattered into two fractions. Pieces with smaller dimensions during the manufacture of CBPB slabs will be located in the outer layers, with larger parameters - in the inner core of the slab.
To ensure the safety of wood raw materials for a long time, it is impregnated with solutions of aluminum salts and liquid glass. The treatment ensures the resistance of the chips to biological contamination and increases the strength of the fibers, which perform a reinforcing function in the composite.
Mixture preparation and pressing
On next stage the shavings, additive solution and cement must be combined and mixed thoroughly, achieving a completely homogeneous mass. This can be done only with the help of special high-power mixers, adjustable rotation intensity. Wood pieces are not very well coated with cement mineral powder, so sometimes a small portion of fuel oil and industrial (technical) oil is added to the mixture.
Once absolute homogeneity is achieved, the mixture is placed layer by layer into pallets, which are stacked on top of each other and placed under a press. After exposure to high pressure, the compressed cement-bonded particle mass, fixed in the molds with latches, is moved to thermal chambers, where heating is carried out during one work shift.
Then the molds are removed from the chamber and returned to the press, where the locking clamps are removed. To complete the acquisition of all operational characteristics, the formed CBPB sheets are transferred to warehouses, where they are kept for 2 weeks, periodically drying with an air flow heated to 100 °C.
At the final stage, the slabs are formatted according to size, packaged, and sent to the finished product storage area.
Sheet sizes
The national standard regulates the division of the material into 2 groups according to general physical and mechanical parameters and dimensions of CBPB boards. The length of the products is 3.2 and 3.6 m. In the first group, fluctuations in the parameter in one direction or another by 3 mm are allowed, in the second group - by 5 mm.
Standard width values are 1.2 and 1.25 m, the trend in permissible fluctuations in the parameter is the same. Errors in the geometric parameters of products of the 2nd group are always larger.
The thickness of the sheets varies:
- in one category it reaches 10 mm with a minimum of 8 mm;
- in another – 16 with a minimum of 12 mm;
- in the third – 28 with a minimum of 18 mm;
- in the fourth – 40 with a minimum range of 30 mm.
The thickness variations allowed by the standard vary from 0.6 to 1.4 mm in the first group of DSP boards and from 0.8 to 1.6 mm in the second group.
The regulations stipulate strict perpendicularity of the intersecting sides of the slabs, standardized diagonal sizes, limited deviation from the plane, equal to a maximum of 0.8 mm for the 1st group, and a maximum of 1 mm for the second.
The standard specifies the number of flaws the presence of which is acceptable. The possibility of chips on CBPB boards is completely excluded, and the number of possible stains of any origin and dents is strictly regulated. The requirements for products designated TsSP-1 are more stringent than for products TsSP-2. Delaminations, foreign inclusions, and mechanical defects are completely excluded for the entire line of materials.
physical characteristics
For assessment operational capabilities Physical parameters of DSP sheets are of decisive importance.
Weight
You can plan transportation and installation conditions by knowing the weight of the chipboard, which is determined by the size and density of the products. The minimum specific gravity of cement particle boards is 1100 kg/m 3, the maximum is 300 units more.
As an example: one sheet with a density of 1300 kg/m3 and dimensions of 2700 x 1250 x 10 weighs almost 44 kg (43.88).
From this the obvious conclusion is that the material is very heavy. One cubic meter of panels will weigh almost one and a half tons. The buyer must make careful preparations for the delivery and subsequent use of panels of this weight.
Humidity
The normalized humidity of CBPB is 9%; the standard legalizes fluctuations in the value by a third in the direction of increase or decrease. The rather large magnitude of possible deviations is apparently due to the structural features of the composite.
During control tests, CBPB products can increase in thickness by 2% per day, which occurs due to the absorption of moisture in an amount that can be 16% of the original weight of the sheet. This factor must be taken into account when storing slabs and installing them on the front of the house, outside industrial buildings.
Strength
The presence of wood fibers in the composite made it possible to give the material good strength properties. Thus, the maximum strength under bending loads for the thickest sheet is 12 MPa, for the thinnest - 7 MPa. If tensile forces estimated at 0.35 MPa are applied to the slab, it will not undergo changes. Since the strength of CBPB boards is higher than that of plywood, they are actively used for the construction of formwork.
The standard normalizes the permissible surface roughness, which for sanded panels is 4 times less than for unsanded ones. For the manufacture of formwork, it is quite possible to purchase slabs that have not been sanded. The finishing of facades can be made beautiful either with the help of polished products or by installing roughened DSP boards that have undergone additional decorative processing.
Fire safety
From chemical composition and technological features of production, it logically follows that DSP panels are highly resistant to ignition and have a minimal tendency, almost zero, to spread flame. In the case of strong heating of the cement-bonded particle material, there is a negligible possibility of the formation of gases and smoke during combustion. At the same time, the toxicity of the released thermal oxidation products is very low.
Note! It is safe to say that DSP boards are a fireproof material.
Wood shavings by themselves burn remarkably well, but as part of a composite they are soaked through with mineral agents and surrounded by particles of Portland cement, which reduces the fire hazard to zero. The flammability of DSP panels, in accordance with the generally accepted classification, is designated as G1.
Frost resistance
One of important characteristics DSP boards – frost resistance. The ability of panels made from a mixture of cement and wood chips to withstand frost is impressive. Even if the finish undergoes defrosting and then freezing 50 times during the winter (although such frequent temperature changes occur extremely rarely), the strength of the coating will decrease by only 10%. DSP plates can be used outdoors without problems for half a century.
Types of DSP
The production of CBPB boards in Russia has been carried out in industry for about thirty years. During this time, domestic and foreign technologies have changed, which has led to the appearance on the market of new similar materials, for example, such as:
- fiberboard;
- wood concrete;
- xylolite.
The composition of fiberboard includes cement and wood fibers so fine that they are called wool. The material is soft to the touch, insulates sound well, is highly durable and resistant to cracking.
Wood concrete is a mixed composite consisting of cement and wood chips, shavings, pieces of reed stems and rice straw. The material is not very durable, suitable for the construction of light partitions. Unlike a DSP board, which is quite suitable for flooring, wood concrete will not withstand such a load.
A special feature of xylolite is its increased resistance to water, achieved through the introduction of Sorel cement into the composite mass. Xylolite panels can be laid on the floor, laid on the roof, and placed in any place where large amounts of water can enter.
Features of application
Cement particle boards can be laid on floors, installed as partitions or main walls, sheathed house frames, and finished part of the walls above the foundation (basement). It is known to use a DSP board for flooring instead of a cement screed. The material copes well with the load and also provides thermal insulation.
Installation of slabs
Galvanized screw-shaped nails are suitable for fastening structures; when choosing the length, you should take into account the thickness of the sheet and the total dimensions of the pie. You can also use self-tapping screws, for which holes are pre-prepared.
Due large mass panels, special attention should be paid to observing the recommended distances between fasteners. To do this, it is advisable to use special tables, which are compiled taking into account the thickness of the sheet and the location of the fastening.
In addition to fixing along the perimeter, intermediate fastenings must be made on the tile, usually located in the middle part of the height. In the intervals, the DSP can be fixed half as often as along the edge lines.
The plates can be formatted using conventional high-quality tools designed for working with materials of great hardness.
External finishing of slabs
It is not worth sanding the surface layer, because this may lead to an increased tendency to absorb moisture. When joining wall structures, there may be a need to level the height, which is somewhat more difficult to do than when working, for example, with brick. In such situations, it is permissible to use any grinding machine, the main thing is that the grain size matches up to No. 25, then damage to the structure will not occur.
To finish the DSP, surfaces are usually plastered and painted. This reduces their ability to absorb moisture. The material lasts longer and does not crumble.
Joints
When working with DSP, it is important to leave sufficient distance at the joints, which should be at least 4 mm indoors and 8 mm outdoors. If this requirement is ignored, cracking of the seam joints may occur. A fairly large space is covered with elastic plastic or sealant.
External joints are sometimes decorated with slats or profiles made of aluminum alloys; a special elastic cord can be laid inside at the joints.
When constructing private housing projects, customers who want to ensure maximum fire safety for the building choose a project option with the production of SIP panels from DSP sheets. In this case, an inorganic insulation material is placed between two layers made of a mixture of cement and shavings. mineral origin. The resulting design demonstrates strength, environmental friendliness, and fire safety.
When constructing any structure, and even more so if it is residential, each of us is interested in not only its safety, but also its environmental friendliness. And therefore, in the construction of houses, they are increasingly beginning to use cement-bonded particleboard.
Thanks to their natural and high-quality ingredients, they do not cause harmful effects neither on human health nor on the environment.
These slabs are used not only in prefabricated structures, but also for internal and external construction work, namely for the manufacture of ceilings, window sills, flat roofs, 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 board 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, coniferous tree shavings, minerals and water. Due to the presence of silicate cement, there is no need to use synthetic glue, and therefore there are no harmful substances such as phenol, formaldehyde, etc.
Additional information on use is available in the collection of articles. The lowest price of DSP from leading manufacturers.
ANY CUTTING OF CEMENT PARTICLE BOARDS TO CUSTOMER SIZE.
When choosing cement bonded particle boards, you need 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 as the thickness of the sheet increases, an additional load on the structure occurs, and at the same time, under high loads and impacts, the cement-bonded particle board may break. Based on all this, the recommended thicknesses are:
20 mm - 36 mm - for installing canopies, window sills, etc.
10 mm -20 mm for permanent formwork
8 mm for subfloors
From 12 to 36 mm for frame construction
10, 12 mm for partitions
12, 16 mm for external cladding
| CEMENT Particle Board GOST 26816-86 (Kostroma) | ||||||||||
| Name | Size | Thickness, mm | Unit. | Weight, kg | Quantity, pcs. | PRICE per sheet | ||||
| in a pack | in the car | from the Kostroma plant | Machine norm with delivery to Moscow Region | from the warehouse SOUTH Voskresensk | ||||||
| small wholesale | 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 |
| Packaging price | 400 rub. | |||||||||
For more details, see the PRICE LIST tab.
Basic properties of DSP
— Environmental safety: Absence of formaldehyde resins, asbestos, and harmful impurities;
— Processability parameters similar to wood (with higher strength parameters);
— High fire safety (G1 low-flammable) and fire resistance;
— High frost resistance and thermal conductivity (0.216 Vi/mK);
— High bioresistance to fungi, termites, rodents and insects;
— Suitability for use inside and outside both commercial and residential premises;
— Various possibilities for surface finishing: plastering, painting, cladding with wood, plastic, ceramic tiles, etc.;
— High climate resistance.
| Characteristics | 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% |
| Bending strength, not less, for thickness | |
| 10, 12, 16 mm | not less than 12 MPa |
| 24 mm | not less than 10 MPa |
| Maximum deviations for slab thickness | |
| 10 mm | +/- 0.6 mm |
| 12, 16 mm | +/- 0.8 mm |
| 24 mm | +/- 1.0 mm |
| Maximum deviations along the length and width of the slab | +/- 3 mm |
| Deviation from flatness, no more | 0.8 mm |
| Flammability | G 1 |
| Frost resistance, (decrease in bending strength after 50 cycles), no more | 10% |
Application of cement-bonded boards
What's new in area modern production DSP?
New technology production of cement bonded particle boards allows you to obtain products with extremely low thickness variation. This development of events became so successful that in this regard, there has been a steady demand for the sale of CBPB 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. Such fine tolerances make the costly grinding process unnecessary. In addition, the plates have smooth surfaces consisting from very small particles, and
particle sizes gradually increase towards the center boards Not new, but not so widely yet famous csp board with embossing and surface coating in various configurations, such as brickwork, wooden boards
or a natural stone. Especially in Japan has a large number of people willing to buy CP these boards made the sale of csp Very successful business. More than 90 % of Japanese buy such slabs from embossed and surface coated and used for cladding external walls.
Based on success in Japan, several companies in many other countries have started test market for the sale of chipboard. In its simplest form, paint is applied to the surface usually with a roller or spray required colors, for which currently availablevarious suitable paints and coatings. In a higher quality version, the coating is performed from reinforced hard plastic with relief the surface that results so tough and durable that it can match the strength become.
Where to buy DSP sheets?
Not exactly new, but very interesting application cement particle boards as tiles. In Hungary, the use of painted and unpainted tiles on walls and roofs is common, but of particular interest are roofs and walls made from tiles developed in some states in the western United States. It undoubtedly looks beautiful, but is flammable. Nevertheless, the sale of CP is in full swing.
Very interesting is successful application large sizes of prefabricated walls and floor elements assembled from DSP panels. All elements consist of panels arranged in composition with metal or high-strength plastic spacers and have the necessary internal reinforcements. Each piece is precisely cut to exact dimensions in 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, water, gas and electricity piping will first take place in the wall cavities. After the construction of the building, the external walls are insulated with 7 cm thick sheets of expanded polystyrene, which are covered with a thin layer of plaster or elastic finishing. Only three workers are needed to install all the walls and floors for single-story buildings per week. Thanks to the prefabricated structure system, it is fast, high quality and at an affordable price per sheet. Such effective method construction of the building does not create 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 internal lining walls (on a lathing frame), cladding of columns or crossbars of public, industrial and agricultural buildings.
Moisture-resistant partitions - DSPs 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 units of buildings for various purposes.
Interior wall decoration - DSP, having certain fire-retardant properties, is an environmentally friendly and moisture-resistant material, and therefore is successfully used for interior and exterior finishing premises of residential and public buildings with dry and normal operation.
Floors - DSP with a thickness of 16, 24 mm can act as the following floor elements: a base for various coatings, an underlying layer, a leveling layer, a finished floor with a top coat. DSP 24mm thick can be used for the construction of prefabricated floors on bulk foundations in warehouses and utility rooms. This eliminates wet processes, which allows work to be carried out at sub-zero temperatures. In addition, slabs can replace cement screed. The advantages of this solution are: reduction in labor intensity; the ability to carry out repair work without stopping production. The 8 mm thickness is also a popular position and is constantly available in our warehouse.
Removable, permanent formwork - slabs with a thickness of 12, 16 and 24 mm can be used as removable or permanent formwork for constructing building foundations. The simplicity of the formwork design will reduce labor costs and achieve a significant reduction in cost when performing zero-cycle work.
Window sill board - 24mm thick CSP window sills are ideal for any modern interior. According to its characteristics, a window sill made of CSP is stronger and more durable than its wooden counterpart.
When performing activities related to the improvement of an apartment, private house or implementation overhaul In new buildings there is a need to level the floor. With limited time to complete the work, it is problematic to pour a cement screed that takes a long time to dry. Cement particle board can significantly reduce the duration repair work and ensure perfect flatness of the floor surface. Let us dwell in detail on the characteristics, advantages and disadvantages, as well as the specifics of the use of slabs.
Composition of CBPB boards and production technology
While searching for building materials, developers have probably come across the abbreviation DSP.
The abbreviation denotes a cement bonded particle board made from the following components:
- Portland cement grade M400 and higher. The concentration of cement, which acts as a binder, is 60-65%;
- wood chips introduced in an amount of 20-24%. Coniferous wood chips with a size of 60-90 mm are used;
- special additives, thanks to which the CBPB board has increased tensile and compressive strength. The share of additives is up to 2.5%;
- water in an amount of 8-8.5%, added when mixing dry ingredients to achieve the required consistency.
The production technology of DSP panels involves performing the following operations:
- Loading into the mixer aqueous solutions containing special components that increase strength and water-resistant properties.
- Addition of wood chips, mineralized in modified aqueous solutions.
- Gradual introduction of Portland cement and water, followed by mixing the mixture until a homogeneous consistency.
- Supplying the cement-bonded particle mixture to pressing equipment to obtain the finished product.
Due to the increased pressing force, there are no voids inside the particle-cement mass. The resulting product, which is based on wood chips and Portland cement, is thin sheet with a smooth surface and increased strength.
Cement particle board - use in the construction industry
To solve various construction problems, a DSP board is used. Flooring is not the only area of application for cement-bonded particle boards. An expanded range of products allows you to design a floor to suit every taste.
DSP is used for cladding frame houses, while the slab serves as both a binder and a cladding The technical characteristics and properties of cement particle board ensure its competitiveness with other building materials, as well as an expanded scope of application.
This allows the slabs to be used for various purposes:
- For walls, DSP board is used as a finishing material. The increased moisture resistance and smooth surface of the slabs allows it to be used for façade restoration of buildings;
- interior decoration and arrangement of partitions between rooms. Smooth panels are easy to apply decorative finishes to, as well as wallpaper;
- production of prefabricated or stationary formwork for pouring the foundation. The smooth end surfaces of the plates make it easy to join and seal gaps.
The absence of harmful reagents in the slabs makes it possible to decorate industrial and residential premises with them. The garage and workshop, after finishing with DSP panels, will acquire modern look. Tiled plaster is applied well to DSP panels provided that a plastic reinforcing mesh is used.
Bonded cement panels are used in construction to solve a range of problems, significantly reducing the labor intensity of work compared to traditional methods. Modern building material not only reduces labor costs, but also reduces the estimated cost of construction activities.
Technical characteristics and features of the DSP board
The advantages of the building material are influenced by the manufacturing technology and composition of the CBPB board, which consists mainly of cement and shavings. What are they?
The frame for the CBPB needs a serious one, capable of withstanding heavy loads Compared to traditional chipboards, modern material has improved characteristics:
- increased safety margin;
- long period of operation;
- resistance to moisture;
- ability to retain heat in a room;
- high sound insulation properties.
DSP board is used in various climatic zones, maintaining its performance properties.
With a sheet width of 125 cm, the slabs differ in overall dimensions and other characteristics:
- length 240-320 cm;
- width ranging from 0.8 to 3.6 cm;
- specific gravity equal to 1.3-1.4 t/m3;
- humidity not exceeding 12%;
- roughness value at the level of 80 microns.
When absorbing moisture as a result of an unforeseen situation, DSP boards for floors swell by no more than 2%, which is extremely insignificant. Depending on the specific application, slabs are manufactured with a rough or smooth surface. The properties of the panels allow installation on various types of surfaces. finishing coating, as well as paint and varnish materials.
Cement particle board is wood shavings (accordingly, it is positioned as particle board), pressed in a special way and treated with cement mortar Advantages and weaknesses
Cement floor boards, like other building materials, have advantages and weak sides. Main advantages:
- environmental cleanliness associated with the absence of harmful substances in the formulation;
- resistance to the development of microorganisms, the formation of fungus and mold;
- increased resistance to moisture compared to chipboards;
- preservation of working properties under significant temperature fluctuations;
- resistance to high temperatures and open fire;
- affordable price level, allowing the use of material on a limited budget;
- increased strength properties that allow them to withstand existing loads;
- ideal flatness of the slabs, which does not require special alignment;
- resistance to aggressive liquids and chemicals;
- the ability to effectively absorb external noise, providing comfort in the room;
- improved thermal insulation characteristics, helping to reduce heat loss;
- ease of installation work, allowing you to do the installation yourself.
Weaknesses of the slabs:
- increased weight of building materials, making transportation and installation difficult;
- increased dust formation when cutting building materials into blanks;
- the need to use personal protective equipment to protect the respiratory system and eyes from dust.
Recently, they are increasingly used as a basis for finishing Thanks to a serious set of advantages, particle-cement boards are popular in construction industry. In terms of most characteristics, sheet building materials successfully compete with chipboards, wood-fiber panels and plasterboard. By giving preference to DSP boards, it is easy to quickly complete installation and save money.
DSP board – application in thermal insulation measures
When solving problems of thermal insulation of buildings, the DSP board is used as a cladding material.
Its fastening is carried out using hardware. Sheathing is done from different sides:
- outside the building using pre-installed sheathing or special mastic;
- indoors on wooden or metal carcass, as well as on the surface of the walls using glue.
Decorative finishing can be carried out immediately after completion of installation activities.
Cement bonded particle board - flooring applications
The main advantages of DSP are considered to be high strength and durability The use of building materials consists of laying finished panels on various types of bases:
- a flat surface of a wooden or cement floor;
- wooden logs installed at equal intervals.
Ceramic tiles can be glued to the surface of the slabs, flooring can be laid, and laminate or parquet can be laid. The properties of the material are preserved for decades, provided that the installation technology is followed.
Cement particle board - choosing material for the floor
The cement particle board is selected depending on the complexity of the tasks being solved:
- when installing panels on logs, material with a thickness of 2-2.6 cm is used;
- when laying on cement base the minimum thickness is 2.4 cm.
When purchasing floor slabs, pay attention to the following points:
- availability of a certificate of conformity;
- absence of cracks and defects;
- flatness and surface roughness;
- image of the manufacturer.
Also check the availability of a sanitary and hygienic certificate confirming the environmental friendliness and harmlessness of the product.
The surface of the cement board is smooth and even, due to which it is very popular among finishers who use it as a base for decorative finishing. We are preparing for the installation of a coating made of CBPB boards
The surface preparation process for forming a rough base from CBPB panels is simple and consists of performing the following activities:
- dismantling rotten boards, logs and replacing them with dry wood products;
- carefully sealing cracks using wood putty;
- coating wooden surface primer that increases adhesion;
- restoration of the surface of concrete bases and sealing of defects.
The optimal solution is to lay the slabs on beams with an interval between supports of 50-100 cm. When installing panels on joists, you should lay waterproofing material and perform thermal insulation.
To complete the work, you should prepare materials and tools:
- beams with a section of 15x10 or 5x10 cm;
- cement particle boards;
- antiseptic impregnation for wood;
- waterproofing materials and insulation;
- hardware for assembling the supporting structure and fastening the slabs;
- electric drill and hacksaw.
Having completed the preparatory activities, proceed to arranging the floor.
To avoid deformation during operation, gaps are left between the plates Sequence of actions for constructing a floor from CBPB boards
Let's look at how a slab is laid on a balcony. Follow the sequence of actions:
- Lay a layer of heat insulation at the locations of the beams.
- Install joists at intervals of 0.3-0.4 m parallel to the wall.
- Secure the cross beams using screws and angles.
- Fill the space inside the lattice structure with insulation.
- Cut the slabs into pieces of the required size and lay them across the joists.
- Attach the particle-cement panels to the joists using self-tapping screws.
At the final stage, it is important to carefully seal the seams using adhesive.
Cement particle board - installation specifics
When performing work, observe the following recommendations:
- treat wood with antiseptic solutions or waste oil;
- use square wooden beams with a side of 5 cm when laying slabs on a concrete base;
- control the horizontal surface of the wooden frame and laid slabs;
- leave compensation gaps around the perimeter of the base formed from slabs.
Please also pay attention to the correct preliminary cutting of the material before starting work.
The DSP board will facilitate the formation of level bases, reduce the duration of work and reduce costs. Using building materials, it is easy to build floors for a house from foam blocks. When thinking about it, consider using DSP panels. Using plates you can do. This base and the Swedish foundation slab are comparable in thermal insulation properties. When engaged in construction, it is worth studying the difference between PC and PB boards. It is quite possible that this will be useful when choosing a material.