Construction technology using DURISOL blocks. Construction of a house from chip-cement blocks Durisol Laying a concrete mix

The name Durisol reflects the brand name of the technology for manufacturing blocks designed to create fixed formwork used during monolithic construction, and is also the proper name for a material made using this technology.
Durisol production began back in 1938 in Switzerland, and at the end of the Second World War, many European buildings were quickly restored thanks to the use of this material. Such popularity of Durisol is due to high environmental performance, unusually high speed, simplicity and cost-effectiveness of construction work.
In Russia, the first plant for the production of Durisol was opened in early 2008 in Leningrad region. At present, thanks to its ability to produce 7 million blocks per year, it is the most powerful durisol producer in Europe. In fairness, it should be noted that despite the rather large production volumes, such a unique building material as dyurisol has not yet been appreciated by individual developers in our country, and therefore is not in great demand.

The most important characteristics of the material

The production of Durisol is based on a unique technology, during the implementation of which processed with special mineral compositions wood chips are fastened with cement mortar. The resulting material, containing about 90% wood, is characterized by high performance.

Durisol quite deservedly belongs to the category of the purest environmental materials, since it contains only natural ingredients. During the entire period of operation, Durisol does not emit substances harmful to human health into the environment, it can be recycled into in full, the production of this material is waste-free.
Durisol can be confidently called a unique material, as it was able to combine positive traits stone and wood. Durasol, like a stone, is stable and durable. At the same time, just like wood, it carries natural warmth, and the walls of buildings built from it are able to breathe.
Durasol is characterized by high heat saving characteristics. The thickness of the wall built using these building blocks, as a rule, does not exceed 375 mm, resulting in an increase effective area inside the building, the load on the foundation is reduced, and also, the total costs for construction, in comparison with buildings of the same area, made of brick or other building blocks.

Durasol is easy to process. It can be drilled, sawn, milled, if necessary, laying certain engineering communications. The presence of a porous structure in the material allows you to finish the walls with any plaster compositions.
It is impossible to ignore the functionality of Durasol. Blocks of this material can be in-line, end, corner, they can be used to build external and internal walls, build partitions, and also create houses of the most diverse architectural forms.
Durasol is durable, has excellent fire resistance. In the thickness of this material, mold or fungus will never start. High weather resistance allows no harm to internal structure tolerate even very sharp temperature changes. Durasol does not absorb moisture, so that the construction of buildings on its basis can be carried out even in winter.

Construction applications

The technology called "Dyurisol" provides for the manufacture of wall building blocks, which are fixed formwork, which is further reinforced and poured with concrete. Standard blocks manufactured using this technology have the following dimensions:

• length 500 mm;
• height 250 mm;
• thickness 150, 220, 300 or 375 mm.

FROM technological lines, engaged in the production of Durisol, produce blocks intended for the construction of outdoor bearing walls and internal partitions. Each series contains in-line, additional, corner blocks and blocks designed to create lintels over window and door openings. Durisol blocks are characterized by ideally correct geometric shape, they can be called a kind of constructor, the voids of which are filled with concrete mortar. A wide range of different block shapes allows you to build architectural forms any degree of complexity in the shortest possible time.
Insignificant own weight of the walls made with the use of Durisol permanent formwork provides designers with a unique opportunity to save money. After all, the walls erected using this technology are much thinner than their brick or concrete counterparts, respectively, their weight is much less. Smaller wall thickness means less material consumption and, as a result, savings in the purchase of material. In addition, the lighter weight of the walls requires the construction of a foundation that is not as powerful as when building brick walls, and this is another opportunity to save money during construction. Buildings built on the basis of Durisol blocks are characterized by excellent consumer characteristics, they are durable and as comfortable as possible.

During construction, individual blocks of Durisol are stacked on top of each other. There is no need to use cement mortar, glue or any other bonding material. The high accuracy of the geometric dimensions of each of the blocks guarantees their perfect joining, in which the occurrence of cold bridges is excluded. As a result, the erected wall is a homogeneous porous mass, in which there are no layers of a binder material that prevents free movement water vapor and air currents.
The frame of a structure erected using Durisol blocks is a monolithic concrete lattice with a thickness of bearing pillars from 9 to 20 cm. The indicated thickness value depends on the type of blocks used, it determines the amount of required structural strength. Area value cross section frame made of concrete or the supporting area is determined by the standard size of the blocks used and can range from 694 to 1432 cm² in one running meter lined wall.
To build one square meter walls will require only eight blocks of formwork. The construction of the wall begins with the laying of four rows of blocks, after which their internal cavities are first filled with reinforcement in a vertical plane, and then with concrete. Next, a part of the wall, consisting of four rows, is reinforced in the horizontal direction, and the next four rows of formwork are installed, which, in turn, are also filled with concrete and reinforced, and so on until the final erection of the wall.
During the construction of external walls, special blocks are used, which have insulating inserts based on expanded polystyrene foam as part of their design. This method of construction allows you to get a structure with a thickness of load-bearing walls of no more than 375 mm, which have high heat and sound insulating characteristics, as well as low dead weight.
The most important advantage practical use Durisol technology is the absence of the need to use special lifting equipment and highly skilled labor in the construction. And this, as you know, significantly reduces the complexity of work and the area of ​​the construction site.
Also, it should be noted that the walls of buildings erected using traditional bricks must be insulated. This significantly increases construction time and costs. Money. Houses built using Durisol outdoor blocks do not require additional insulation.
The porous structure of the erected wall guarantees the optimal rate of water evaporation from the thickness of the concrete during its curing, and also increases adhesion to plaster and finishing materials, which simplifies the cladding of the building and reduces its cost.

Advantages and disadvantages of Durisol blocks

The following facts can be attributed to the category of indisputable advantages of using building blocks created on the basis of the Durisol technology:

• high degree of biological stability;
• the minimum coefficient of thermal conductivity, which allows the construction of building walls of much thinner thickness in comparison with traditional materials;
• high fire resistance;
• long service life, excellent frost resistance, as well as resistance to moisture and sudden changes in temperature;
• the possibility of mechanical processing;
• a wide range of structural elements supplied to the market;
• low consumption of reinforcing material;
• the possibility of creating on the basis of blocks of jumpers for door and window openings, as well as strapping columns directly on the construction site;
• ecological cleanliness of building blocks.

Not very significant, but still existing shortcomings include the following criteria:

• the need for constant strict control in the course of filling the voids of blocks with concrete mortar, the purpose of which is to eliminate the likelihood of voids;
• mistrustful attitude to the new material on the part of some architects and individual developers.

Construction technology based on wall chip-cement blocks of fixed formwork was first used in the 1930s in Holland. After World War II, low-cost technology that allowed building prefabricated houses became widespread in the territory of Germany destroyed by the war. The Durisol brand originated in Austria. In the US, Durisol has been used in construction since 1953. Unlike Russia, in the UK, not expanded polystyrene, but basalt wool is used as a heater inside the blocks.

Blocks of fixed formwork Durisol based on wood chips and cement are designed for monolithic construction without the use of binding mortars and adhesives. Durisol blocks provide excellent thermal insulation (heat transfer resistance up to R = 3.52 m 2 °C / W) due to the expanded polystyrene layer and excellent heat accumulation due to the reinforced concrete core. Durisol blocks provide high sound insulation(up to Rw=60 dB). The absence of a solid concrete or polystyrene foam contour in the walls allows them to conduct steam well through the chip-cement structure of the blocks. Walls made of Durisol blocks "breathe" perfectly, providing a comfortable microclimate. Durisol blocks are fireproof: they correspond to groups G1 - low combustible, B1 - hardly flammable, D1 - with low smoke-generating ability, the fire resistance of the wall under load is more than two hours. A wall of Durisol blocks plastered with 2 cm of plaster is non-combustible. The walls of the Durisol blocks are resistant to weathering, well resist the formation of mold, fungi and decay. Chip-cement blocks are processed just as easily as ordinary wood.

Durisol technology is used not only for the construction of vertical walls of low-rise buildings, but also for the construction of buildings of 4 or more floors.

Durisol blocks have standard length 500 mm and height 250 mm. The thickness of the blocks is 150, 220, 250, 300 and 375 mm. The internal space of the blocks is filled with concrete mix. Concrete mixture for pouring internal cavities in masonry serves as the supporting frame of the wall, which receives the load from the ceilings and the roof of the building.		The Durisol construction system combines natural Construction Materials- wood and stone, new modern form. Durisol block manufacturing technology allows to obtain an environmentally friendly product with excellent structural properties.
Wood-cement blocks of fixed formwork Durisol are produced near St. Petersburg - in the village of Razbegaevo.		Cutting universal blocks (U) Durisol allows you to get half blocks or blocks of a special shape right on the construction site. Cutting is done with any saw (manual, electric or chainsaw).
Normal in-line blocks (N) Durisol lilac, and additional (additional) in-line blocks (EA) gray color fit when forming corners and openings. The weight of in-line blocks Durisol is from 6 to 14 kg. For the construction of 1 m 2 of the wall, only 8 blocks are needed.		The blocks are installed end-to-end (groove - comb) to each other "dry", without the use of binding mortars, while thermal bridges are not formed, the surface of the walls is even, which is important for plastering.
The laying of the first row of blocks starts from the corners, taking into account the walls and openings. All other rows are laid according to the dressing rules with an offset of 1/2 block (vertical joints should run in the center of the blocks of the bottom row). The main requirement for ligation of Durisol blocks is to ensure the continuity of the concrete core during subsequent pouring with concrete.		Every third row of masonry is reinforced with horizontal reinforcement bars. To strengthen the structure on the crown, it is necessary to install a horizontal reinforcing belt: at least 4 reinforcing bars with a diameter of 10 mm.
It is most effective to pour blocks with concrete mix after installing 3-4 rows of blocks. The fill level should not reach the edge of the top block (with the exception of lintels and the last row of the wall). The height during simultaneous pouring should not exceed 100 cm (4 rows of blocks). The concrete mixture used must have such a consistency that it can penetrate into all the cavities formed in the wall frame of the Durisol blocks. Grain size stone material filler should be no more than 1/10 of the width of the concrete core of the blocks. Compaction of concrete at low-rise buildings is carried out by bayoneting manually or using a deep vibrator with a vibrating nozzle with a diameter of not more than 4 cm.		Partition masonry: at the junction of partition blocks to blocks outer wall it is necessary to make cuts in the side walls of the blocks to ensure the integrity of the concrete core during pouring. Cutting is carried out along the entire height of the floor. To strengthen the joint in every third row of blocks, it is recommended to lay reinforcement.
Reinforcing cages for reinforcing lintels above door and window openings. For reinforcement of openings up to 2 meters, steel reinforcement with a diameter of 12 mm is used. When reinforcing openings over 2.5 meters, reinforcement with a diameter of 30 mm is used for the reinforcing cage.		Lintels over openings up to 2 m wide are made using vertically placed blocks (U / 2) with cut-out transverse partitions. In a number of blocks under the window openings, it is necessary to lay reinforcement from 2 rods with a diameter of 8–10 mm with a minimum of 75 cm penetration into the part of the wall adjacent to the opening.
Jumper blocks must be laid out on a pre-installed temporary formwork, and the structure must be reinforced with reinforcement. Before removing the props and starting finishing works it is necessary to wait 28 days for the concrete core to gain the necessary strength. Window frames and doors must be fixed into the concrete mass using sheet steel, anchor screw, using tie-wire fasteners, etc.		Vertical and horizontal reinforcement of the concrete core of the wall from Durisol blocks. In case of suspension of concreting, a steel rod 40 cm long must be inserted into every second cavity in the block to connect the concrete layers. This fastening must be installed in such a way that it extends 20 cm into the concrete mixture of both connected concrete frames.
Communications can be missed in the voids of the blocks. pass sewer pipe through the wall.		Ventilation ducts of the bathroom of the house inside the Durisol blocks.
Installation of formwork for casting monolithic reinforced concrete slab overlap. With a greater wall thickness, it is possible to use sawn Durisol blocks as fixed formwork.		Reinforcing connection of the concrete core of walls from Durisol blocks with a reinforcing frame of a monolithic reinforced concrete floor.
Reinforcing cage for monolithic reinforced concrete flooring of the house from Durisol blocks.		Removable formwork for a monolithic reinforced concrete floor slab.
Durisol block masonry allows you to install any floor structures, including prefabricated wooden ones on wooden beams.		Durisol blocks are excellent working basis under plaster. Before the start of finishing work, it is necessary to wait 28 days for the concrete core to become sufficiently strong. To additional construction work not spoil the plaster, must be installed in advance door frames, window frames and hold network engineering and communications. The air temperature should not be below +5°C two days before the finishing work, as well as during the application of the plaster and its drying.
Read about

Blocks Durisol (Dyurisol) are a fixed formwork system and are designed for the construction of vertical building structures: external load-bearing walls, internal load-bearing walls and partitions. The technology is also suitable for multi-storey buildings.

DURISOL fixed formwork blocks are ideal for projects where horizontal and vertical dimensions are multiples of 250 (mm). The blocks have a standard length of 500 (mm) and a height of 250 (mm). The thickness, depending on the purpose, is 150, 220, 250, 300 and 375 (mm) for various series.

SIMPLE INSTALLATION in the video file and about the construction technology itself from Durisol, see here: as well as

https://www.youtube.com/watch?v=2fW05GX-7sw&feature=youtu.be And https://www.youtube.com/watch?v=s0GOgQnzy1g

A video clip showing the strength of the material, its fire resistance and fire safety, as well as the review of the owner of the built house from Durisol in the village of Turkovshchina, see by clicking on the linkhttps://www.youtube.com/watch?v=JwlavFewVOw&feature=youtu.be

Construction of houses from Durisol blocks: why, why and how? see video https://www.youtube.com/watch?v=1lS1e1XmXtE

For various series, the elements of the system are:
- Standard row units (N),
- Universal blocks (U),
- Crown blocks (Dr),
- Additional row blocks (EA).
Cutting the universal blocks (U) in the marked places on the walls (formed during production) allows you to get half blocks directly on the construction site. Cutting is done with any saw (manual or mechanical).

Additional (additional) in-line blocks (EA) are laid at the reference points (when forming corners) and are designed to maintain the rules for dressing the outer walls.
The weight of row blocks is from 9 to 14 (kg). For the construction of 1 sq.m of the wall, only 8 blocks are needed.

General rules when installing fixed formwork DURISOL (Dyurisol)

Blocks of fixed formwork Durisol (Dyurisol) on construction site are delivered in packages according to the type.

Be sure to mark the contour of the outer walls, the location of window and door openings before starting installation on the foundation, internal walls and partitions. Start laying blocks from the corners, taking into account the openings.

For a monolithic structure built from Durisol blocks, it is necessary to provide a flat horizontal surface, which is created using a leveling mortar for the first row of blocks along the edge of the foundation or on the floor panel.

Minor adjustments to the joints of the horizontal and vertical planes are made using wooden wedges. All other rows of blocks are laid according to the rules of dressing with an offset top row 1/2 block relative to the bottom.

The blocks must be installed close to each other "dry", without the use of binding solutions.

Corner device.

Corners are mounted from universal blocks (type U). For exterior walls, these units are supplied with 3 insulation inserts. when forming internal corners, one liner is removed. In corner blocks, before pouring concrete, it is necessary to cut out a part of the end and front walls of the U block from above and below to ensure its docking with adjacent blocks of the row when pouring concrete.

Opening device

End surfaces of window and doorways in block walls Dm 15/9, Dm 22/15, DSs 30 and DSs 37.5 are laid out from universal blocks (U) and half blocks (U / 2).

Lintels over openings up to 2.5 (m) wide are made using horizontally placed opening blocks (U / 2) with cut-out transverse partitions. If the width of the openings is greater than 2.5 (m), one-piece opening blocks of type (U) can be used.

On a pre-installed temporary formwork, it is necessary to lay out the blocks at the lintels, and strengthen them with reinforcement for structural strength.

In a number of blocks under the window openings, it is necessary to place two rebars with a diameter of 8 (mm). The fixing must cover at least 75 (cm) of the next part of the wall.

When designing opening lintels, it is necessary to calculate static loads for each specific project.

Arrangement of internal partitions
The laying of partitions is carried out in accordance with the general rules.

In places where the partition blocks adjoin the blocks of the outer wall, it is necessary to make cuts in the side walls of the blocks in order to ensure the integrity of the concrete core during pouring. To strengthen the joint in every third row of blocks, it is recommended to lay reinforcement.

The device of the crown and overlap

The Durisol fixed formwork system (Dyurisol) allows the use of any type of flooring. To form the crown row of the outer walls under the ceiling, U-type blocks are used, which are cut to the desired height in order to give the blockL- figurative form.

Crown blocks type DMs 15/9 Dr are installed on cement mortar or construction adhesive. They are used in the construction of external walls from blocks with a thickness of 37.5 (cm) to insulate the end of the floor.

To strengthen the structure on the crown row, it is necessary to install a horizontal reinforcing belt of steel rods with a diameter of 10 (mm), at least 4 (pcs.) On one floor along the perimeter of the walls.

Concrete laying

Concrete mixture for filling internal cavities in masonry from DURISOL blocks (Dyurisol) performs the function of a statically strong wall frame that carries the load of the building. Concrete must comply with GOST 25192-82*, GOST 7473-94. Depending on the load on the building, different types concrete - class B15, B20, B25, B30.

The concrete class must be the same for the entire floor. It is most effective to pour blocks with concrete mixture after installing 3-4 rows. The pour height should not exceed 100 (cm) (4 rows of blocks). The concrete mixture used must be of such a consistency that it can penetrate into all the cavities formed in the wall frame.

The filling of cavities with concrete can be done with a hand bucket (on small construction sites), or with a crane with a bucket for concrete or using a concrete pump. Compaction of concrete on low-rise buildings is carried out manually or using a deep vibrator with a vibrating nozzle with a diameter of not more than 4 (cm).

In case of suspension of concreting, it is necessary to pour concrete only up to half of the last row, install metal rods in the concrete mix. Embedded reinforcement is inserted in such a way that it penetrates approximately 20 (cm) into the concrete mixture. The spacing of the rods should not exceed 50 (cm), and the total cross-sectional area should be at least 1/2000 of the cross-section of the surface of the concrete core.

Surface plastering

Blocks of fixed formwork DURISOL (Dyurisol) are an excellent basis for plastering. When performing plastering work, generally accepted standards should be followed. Before the start of finishing work, you need to wait 28 days for the concrete core to get strong enough. Drying time depends on climatic conditions. The recommended moisture content of the wall masonry is 14%. Before carrying out plastering work, door frames, window frames should be installed and engineering networks should be installed. The surface to which the plaster will be applied should be free of dust to improve adhesion and protect against atmospheric precipitation. The air temperature should not be lower than +5 C. Plastering, if possible, should be done first from the inside, and then from the outside.

In general, finishing is done in three layers: pre-spray, basic plaster and finish coat. Before applying the plaster, the wall must be cleaned and dried. It is important that after applying cement mortar the gaps in the joints of the blocks were completely sealed. Before applying subsequent layers of plaster, the pre-spray must be sufficiently hardened.

Equipment used when working with fixed formworkDurisol(Dyurisol):

Hand or power saw
- spirit level, plumb line, wooden wedges
- bucket-shovel with long nozzles, wheelbarrows or two-wheeled carts for concrete
- construction hoist for supplying blocks or concrete (for manual work)
- concrete pump for pouring concrete from a container (at larger construction sites)
- metal loading funnel for blocks - used when filling with concrete from a container
- deep vibrator with a nozzle with a diameter of not more than 4 (cm) (on larger construction sites)

If you want to buy fixed formworkor get advice from our specialist, call: +37517 281-72-30, +37529 635-33-33

... Why do you think Arbolit blocks are so irrationally stacked on pallets. You won't guess right away! Turns out to be breathable. Water in such blocks is 40%. And this water is taken to the construction site, put into the walls, where it will reach an equilibrium state in a year and a half. If earlier the blocks from this water do not self-destruct from decay.

It is immediately clear that you prefabricated monolithic ceilings understand better than in arbolite. To make it clear to you that you just wrote complete nonsense, I will give you an example that you can do with any block of wood concrete. You take a block, weigh it, lower it into the water, say for 5 hours or 10 hours or a day, it doesn't matter. The block will draw in all the water in the first few hours. After that, you pull the block outside on Fresh air. The weight of the block will return to its original version in such a heat as today, in a day or two, a maximum of three. If the weather is very damp and humid (the block will lie under a canopy), then the weight will return to the original in a week, a maximum of two weeks. This has been verified not only by us, but also by many wood concrete buyers in different parts of the country who have already built their houses.

Arbolit is non-hygroscopic material It does not draw moisture from the air. What you are talking about waiting for equilibrium humidity for 1.5 or 2 years, this refers to aerated concrete, which gradually releases moisture after production and at the same time draws moisture from the air, because. has a very high hygroscopicity and, accordingly, sorption moisture.

The use of wood concrete and the use of Durisol and Velox are different sides of the same coin. Wood concrete, despite the high price per 1 m3, will always be in the niche of economical construction, i.e. where people will use low-skilled and, accordingly, inexpensive labor, and at the same time, the customers themselves take an active part either in the construction or in monitoring the construction of the house.

Masonry from Durisol or from Velox requires more responsibility and professionalism of builders, because. there are monolithic works. Therefore, this sector will almost always employ organized construction teams and firms with varying degrees professional skills.

You don't read the papers at all. In the link above, I gave you a SNiP in which it is written in black and white that the laying of bricks and blocks on the mortar should be at least 12 mm.
The thermal conductivity of perlite solutions is approximately 0.2 W/m°C and the thickness of the perlite solution does not affect its thermal conductivity in any way. Just increasing the seam increases losses precisely because of the height of the seam and that's it. But on a solution with such thermal conductivity, it is practically not important, 10 mm. seam or 15 mm.

... And Vladimir simply did not have time to learn all the features of the material. The presence of sawdust in Arbolite fascinates many. It seems to them that they will live almost in a wooden house.

People who have been living in wood concrete houses for decades feel very well. We have on the forum Babr, which Karluk last year he built a house from a monolithic wood concrete near Irkutsk. You tell him, who has already spent the winter in such a house, that wood concrete is a bad material. Ask what he used to drown himself and how much he burned, and what temperature he had in the house. I think you will be surprised how pleased he is.

P.S. Arbolit is made from chips, not sawdust.

Construction technology from Durisol blocks appeared in Western Europe about 80 years ago. A patent for the manufacture of the material was obtained by the Dutchman Richard Handl in 1932, and after 6 years in Switzerland, the newly founded joint-stock company “DurisolTechnologie” developed the production of such fixed formwork on an industrial scale, but wide use technology in European countries began only after the end of the 2nd World War. In the mid-1950s, licensed production of durisol blocks began in Austria. In the future, more than 40 licenses were sold to various world states for the production and sale of products. Patent rights and trademark currently owned by the construction concern Leier. The main production facilities of the brand are located in Russian St. Petersburg, Canada, Austria, Holland and Slovakia.

What it is?

This building blocks, from which permanent formwork is erected for the construction of individual low-rise buildings and high-rise construction. The composition of the products includes coniferous wood chips (from 80 to 90 hundred%), high-quality Portland cements (from 10%) and mineral additives. Production is carried out by cold vibrocompression followed by milling to the required dimensions and shapes.

Typical fixed formwork Durisol, depending on the application, is divided into the following main 3 series with 2 subspecies in each:

1. Blocks for construction external walls:
   • ordinary appointment;
   • with increased rates of heat and sound insulation.
2. Bearing blocks for interior laying:
   • privates;
   • with increased sound and heat insulation.
3. For the device of internal partitions:
   • normal performance;
   • with insulation.

The price of Durisol blocks depends on their purpose (for rows, corners, ends, universal) and execution, concrete class and used heat and sound insulation materials.

The set of block structures includes window and door lintels made from Durisol elements, and products for decorating corners and ends.

Standard for manufacturing blocks by size:

• along the length - 50 cm;
• height - 25;
• thickness - from 15 to 37.5 cm (in different series).

The structure of monolithic formwork includes vertical posts, horizontal components and lintels. The concrete used, depending on the static loads on the structure, is accepted as classes B15, 20, 25 and B30 with aggregates of fine fractions 16 ... 20 mm.

The main advantages of the material

The use of Durisol technology has a long list of advantages:

1. Environmentally friendly due to the main use in manufacturing natural materials, does not highlight harmful substances and 100% recyclable.
2. Strength to mechanical influences.
3. Solidity provides rigidity of the structure.
4. Service life ≥ 50 years.
5. Resistant to temperature extremes and atmospheric influences.
6. High seismic resistance, allowing the construction of buildings in earthquake-prone areas.
7. Low thermal conductivity.
8. Good sound insulation, allowing comfortable living near busy auto and railway lines.
9. Low flammability, difficult to ignite and low smoke formation.
10. The porosity of the structure, allowing the walls to "breathe", creating a favorable microclimate in the premises. Water vapor circulates through the walls, creating an optimal temperature and humidity balance.
11. Not susceptible to damage by biological microorganisms, fungi, mold and decay.
12. It has an alkaline environment and does not absorb moisture, which is especially important in humid climates, allows storage under open sky and work in the winter.
13. Unattractive to rodents and wood-boring insects.
14. A light weight construction (weight of products from 6 to 15 kg) does not overload the foundation structures and reduces soil settlements under the building.
15. The small thickness of walls and partitions leads to an increase in the internal usable space in the house.
16. The ease of construction of private houses, which does not require the services of specialized organizations and the use of heavy lifting mechanisms, the possibility of independent work, a fairly thorough acquaintance with the technology or consultation of one specialist.
17. A variety of configurations of elements, with the correct geometric dimensions, allows the creation of various architectural and planning forms in the construction of private and apartment buildings, administrative and public buildings, bath complexes, fences and other engineering structures.
18. Ease of processing (sawing, drilling and milling, nailing).
19. Surface roughness creates good adhesion to plastering and decoration with various finishing materials, which leads to a reduction in labor costs, finishing time and financial costs.
20. Reducing heating costs.
21. Practicality and ease of use.

The existing disadvantages of Durisol technology

There are no ideal materials. The main disadvantages of the technology available:

• the complexity of laying engineering communications due to the presence of reinforcement that interferes with this;
• the need to lay ventilation and chimney ducts in the form of protruding shafts due to the small thickness of the walls;
• the top of the foundation surface must be perfectly even, since further leveling with a small thickness of the solution will be impossible;
• the statement about the high speed of work is disputable. Installation is carried out no more than 4 rows in height due to possible damage to products under the pressure of a liquid concrete mixture, so you have to take technological breaks for concrete hardening;
• possible formation of cold bridges when using products with broken geometry.

Installation of permanent formwork Durisol

Two layers of waterproofing are laid on top of the leveled foundation surface. The blocks of the first row are laid on the mortar with careful alignment along building level. Laying starts from the corners of the building, taking into account the planned openings. The remaining rows are mounted dry or with the use of special glue, the dressing is provided by an offset of ½ the length of the blocks. The main requirement for dressings is to provide a continuous concrete core that allows concrete to be poured. The blocks are stacked with a tongue-and-groove connection. After laying 4 rows, reinforcement is carried out by laying reinforcing bars 50 tons long and pouring a liquid concrete mixture. The fill should not reach the edges of the upper block, except for the last rows of walls and at the locations of the jumpers. Consolidation is made by deep needle vibrators. Constant monitoring of compliance with the verticality of the masonry is carried out.

In the places where the partitions adjoin the outer walls, cutouts are made in the side walls of the blocks along the entire height of the floor, creating the integrity of the concrete core. The joint is reinforced by laying reinforcement in every 3rd row.

Horizontal armored seams of 10 mm rods in the amount of ≥ 4 are arranged on the crowns.

Lintels above the openings are reinforced with frames of 12 mm rods when openings are covered ≤ 2 m, with openings ≥ 2.5 m, diameters of 30 mm are used. For laying the elements, a temporary wooden formwork is arranged.

In the manufacture of Durisol products, European technologies are used, so the requirements for their installation may differ from those familiar to us. When purchasing products, the accompanying documentation is taken, in which all the nuances are detailed.

The price per cube of load-bearing ordinary blocks Durisol is ≥ 5500 rubles, and with heat and sound insulators from 6800 rubles. When buying in bulk, many trade enterprises provide discounts.

Domestic analogue of DURISOL "Arbolit"

The technology was copied from foreign samples of DURISOL in the 60s of the last century. The uniqueness of the properties of wood concrete (the second name is wood concrete) allowed the construction of structures even beyond the Arctic Circle. So at the Antarctic scientific station Molodyozhnaya, a canteen and three buildings for service needs were built from wood concrete panels with a wall thickness of only 30 cm.

This is a popular material for the construction of cottages, country cottages and outbuildings. In the Soviet Union, more than 100 specialized factories for the production of products were built, but in the 90s most of them were destroyed. The word arbolite is translated from French as a tree, which indicates its composition - 80 ... 90% aggregates of organic origin with chemical additives and Portland cement as a binder. Organic fillers: chips crushed to strictly regulated sizes coniferous trees, crushed stalks of cotton, hemp, flax or rice straw. As chemical additives, substances are used that provide acceleration of hardening, better adhesion of the constituent elements and other properties, mainly chloride salts of calcium, potassium, aluminum and liquid glass.

What to choose arbolite or dyurisol? Wood concrete is much cheaper, the average price of 1m³ is 3600 rubles. Most of the technical indicators are higher than those of Durtsol. The only advantages of the latter are as follows:

• higher strength, which allows the construction of high-rise buildings. But for private houses this is not essential. Why do you need a house with 20 floors?;
• more high speed erection. But is it really important if the construction work lasts a week longer?;
• the prohibition of the use of wood concrete for housing construction in conditions of humidity ≥ 75%. The material absorbs water well, but has the property of not retaining it. When the product is completely immersed in water and then removed, the water flows out and the block dries quickly. For residential premises, this is unacceptable, but it allows the use even for the construction of baths.

Conclusion: wood concrete for residential buildings up to 3 floors and outbuildings preferable. However, the choice is yours.