Recommendations for building a house from wood concrete blocks. Projects and construction of houses from wood concrete

17.06.2019

Arbolite blocks, reviews of which are very different, are products made of lightweight concrete. Their density is 1800 kg per cubic meter. This material is also called sawdust concrete, or wood concrete. It has a unique composition and special characteristics.

Positive and negative feedback about arbolite

Arbolite blocks, reviews of which you can read in this article, have positive and negative sides. These quality characteristics are important to know before purchasing material for building your home. Thus, consumers note that they choose wood concrete for its environmental friendliness, because it is based on woodworking materials. Quite often, these products are also chosen for the reason that they have good heat and sound insulation characteristics. Arbolite blocks, reviews of which can be very different, may be of high or low quality, in the first case, the products act as a low-combustible material.

Additional benefits

Among other things, private builders note that the described blocks are immune to decay processes, as well as the effects of various microorganisms. Professional builders choose this material also because it has a low weight, which facilitates construction work, because you do not have to spend an excessive amount of effort and time in order to build a wall from this material. Arbolite blocks, reviews of the owners of houses about which you can read below, are quite easy to process, as well as subsequent finishing.

Negative reviews about arbolite products

We can say that the disadvantages of wood concrete follow from its positive features. Thus, the material is 80-90 percent wood, which has improved thermal insulation characteristics, but it needs additional protection from excessive moisture. This indicates that it will be necessary to lay a waterproofing layer on the surface of the foundation, which will protect the products from moisture coming from the concrete.

The need for protection

Among other things, a house made of wood concrete blocks, the owners' reviews of which may be negative, suggests the need for careful protection of the facade from external influences such as snow or rain. The master must be aware that moisture will constantly affect the material, so the protection must be of the highest quality possible. This significantly raises the cost of construction work.

Scope of use of wood concrete

If you decide to start building a house from wood concrete blocks, you should definitely read the reviews. Thus, arbolite products are most often used in civil and industrial construction for strengthening walls, thermal insulation of buildings and other structures, and in the construction of load-bearing systems. At the same time, consumers use the positive qualities of the material, trying to exclude the negative ones in the form of the possibility of destruction of products from negative factors. If you use wood concrete, you can get benefits expressed in reducing the cost of building a house, lowering energy costs during operation, as well as optimizing financial costs. Among other things, the construction time of the building will be significantly reduced. The mass of the building will be reduced, and the quality of life will be improved by using environmentally friendly materials. All these qualities are highly valued by consumers.

If you decide to use wood concrete blocks, negative reviews should also be considered. For example, if you need to build a house with a significant number of floors, you will have to use another construction material, and not wood concrete, as it is intended for low-rise construction.

However, in terms of economic and technical characteristics, such buildings are able to compete with buildings made of other materials. For example, if you build a house out of bricks, the process will be lengthy and also expensive, as opposed to the arbolite structure. Houses made of wood concrete blocks are warm, which is appreciated by a modern private developer. Arbolit is not at all afraid of loads: if the permissible values \u200b\u200bare exceeded under the influence of external factors, then the material will not be covered with cracks of the type, like foam blocks and bricks, while the products will simply shrink evenly.

Features of construction from wood concrete blocks

Arbolite blocks, reviews of which are quite often only positive, can be selected depending on the goals. So, if it is supposed to build an external wall, then the products should have dimensions of 300 x 250 x 500 millimeters. For the construction of one cubic meter, 27 units of material will be needed. For construction internal partitions products with dimensions of 200 x 250 x 500 millimeters should be used. In one cubic meter there will be 40 units. These dimensions, according to the builders, are very convenient to use. They can be used in both industrial and civil construction. It is possible to use blocks for curtain walls. If the building will have a height that does not exceed 7 meters, then it is possible to use wood concrete for the construction of external and internal self-supporting walls. Bearing walls made of this material, as provided for by the rules for buildings, may have a height not exceeding two floors.

Additional disadvantages of wood concrete blocks

If you decide to use wood concrete blocks, negative reviews should definitely be considered. Among them, one can single out the fact that the material cannot be used in structures whose operating conditions are characterized by a high level of humidity. This indicator should be normal or characterized as dry. The proportion of moisture in indoor air should not be more than 60 percent without the use of a vapor barrier. If the humidity exceeds 60 percent, then the blocks must be covered with a vapor barrier. It is unacceptable to use such blocks in the construction of socles and cornices of buildings, as well as walls of basements. Separately, this material can be used for the manufacture of heat-insulating and noise-absorbing structures.

Features of laying the walls of the house from wood concrete blocks

You will do the right decision if you decide to use wood concrete blocks during construction. The reviews are negative, the photos of the erected buildings should be studied by you in advance. This also applies to the technology of work on the construction of walls. The laying of products is carried out on a conventional mortar made of sand and cement. In order to prevent the occurrence of cold bridges, which are places with high thermal conductivity, perlite must be added to the composition. Polyethylene foam is used to eliminate bridges. With it, you can eliminate the air gap. The laying of products is carried out using strips of polyethylene, which are covered in the middle of the wall so that the mixture is located on both sides of them. The seams should have a width of 10-15 millimeters.

In the practice of low-rise construction, wood concrete is used for the construction of partitions, load-bearing walls, as sound and heat insulation. But successfully completed projects houses are not so common due to the low popularity of this type of lightweight concrete. Although wood concrete is able to become the basis of effective construction.

Wood concrete can be used based on one of two technologies:

masonry walls from prefabricated modules;
pouring monolithic wood concrete into the formwork (fixed or removable).

If the builder is just starting to work with the material, it is recommended to conduct a trial batch and make several test modules. If you managed to achieve a high quality of the block, you can try to make a small bench out of them, then a garage or a barn, and only then start building a house. The master will have time to gain experience with wood concrete, learn how to lay the mortar of the required thickness, gain confidence in his actions. The construction of houses from wood concrete will be of high quality and fast.

Properly folded wood concrete house will never crack the wall even if the foundation collapses. The material has high bending strength

Technology

How to build a house from wood concrete? Initially, a plot should be allocated for construction, the master should have a project for a house made of wood concrete, according to which construction will be carried out.

The next sequence of work is as follows:

marking is applied to the site for the foundation;
according to the markup, a trench 50 cm deep is pulled out, the width depends on the design values, but to create two-story house 30 cm is enough;
the soil is rammed with the help of a vibrorammer;
formwork is constructed from edged boards;
sand 20 cm, or gravel / sand 10 cm each, is laid at the bottom of the trench, the mass is rammed and leveled;
waterproofing is laid out;
a reinforcing cage is laid (d 10mm);
concrete B22.5 / M300 is poured.

In this case, a brief technology for the manufacture of a strip foundation is described. No less reliable is the bearing foundation on bored piles. To protect the masonry from moisture, a 1.5 m red brick substrate should be erected or the foundation should be raised above the ground to an identical height. A reinforced belt can be laid between the masonry and the base, a waterproofing layer is required.

Wall and partition masonry

Wall thickness can be 30-40cm. Work on the construction of the first floor starts from the corner of the building. It is recommended to use a block 300x200x500 mm. The modules are laid on a perlite or cement mortar M10, with a joint thickness of not more than 10-15 mm, a vertical joint - 8.0-15 mm. For the device of internal partitions, a dimension of 20x20x50 cm is used. During the construction of partitions, ventilation ducts are laid, for the creation of which special modules are used.

The composition of the cement / perlite solution used in the construction of houses from wood concrete with your own hands:

proportions by volume 1:5;
cement - 300.0 kg;
perlite - 1.00 m³;
water - 290.0 l;
air-entraining additives - 4.1 l.

For laying wood concrete blocks, a standard cement-sand mortar is often used in a ratio of 1: 3.

After completion of this stage of work, the armored belt is poured. This structural element gives the future building high strength.

Work technology:

along the perimeter of the object, closer to outer wall arbolite blocks 150x200x500 mm are installed;
modules act as formwork and as additional insulation structural element;
With inside formwork is laid from edged boards;
10 mm reinforcement is placed inside the structure in six rows;
pouring with concrete M300 / B22.5 is being implemented.

For reinforcing wood concrete, you can use individual rods or welded meshes:

welded reinforcing products, embedded parts and meshes in accordance with GOST 8478-81/GOST 6727 80;
reinforcing bar steel AI-II-III;
wire class Вр1.

Floor laying

The masonry material of the house made of wood concrete allows you to equip reinforced concrete or wooden floors. As a basis, you can use frameless concrete plates 150 mm. Based on the design data, all protruding parts of the slabs can be cut off and the required configuration obtained. Along the perimeter, they are also insulated with wood concrete modules 150x200x500, after which the laying of the second floor begins.

Laying beams for the second floor

During the construction of houses from wood concrete, beams are laid out on the last row of blocks, with a section of 100x200 mm. The recommended pitch is 600 mm. The material is pretreated with an antiseptic.

roof construction

For construction truss system can be used edged board 200x50 mm. A waterproofing membrane is pulled over the rafters. UTAFOL H110 showed good results.

A 50x50 mm counter beam is attached to the membrane to the rafters, a crate is assembled from a 150x35 mm board with a step of 250 mm. The crate is sheathed particle boards 122x250 mm, 9.5 mm thick. Metal or bituminous tiles are laid on the roof of the house from wood concrete blocks.

Modules can be customized to meet the needs of a specific project. The configuration and dimensions do not violate the beauty of the masonry and contribute to the rapid construction

We build a house from wood concrete with our own hands - exterior decoration

How to build a house that will not collapse in a few years? Outside surface must have a protective finish. The material has good adhesion and does not require preliminary preparation. A rough plaster layer is applied along the facade along the lighthouses.

After that, the walls are pasted over with a plaster mesh under the finishing layer. At the end, a protective plaster mixture up to 5 mm, with frost-resistant and moisture-resistant properties. The facade is ready to work with textured paints(based on acrylic urethane) or decorative cladding (block house, wall paneling, siding, clinker, ventilated facade). The main construction of a house made of wood concrete with your own hands can be considered completed.

The object needs good protection against moisture. A layer of vapor barrier is laid between the masonry and the inner lining, it is better to leave free space from the outer lining to the wall.

Do-it-yourself monolithic house from wood concrete

How to build a house from wood concrete with your own hands using this technology? The monolith is created on the basis of a removable or fixed formwork. Special shells can be made from high-density wood concrete 1000 kg / m³, which, after setting, act as a fixed formwork. In this case, it is possible to achieve relative uniformity of the wall, which is due to the minimum through mortar joints. In addition, this method of building turnkey wood concrete houses allows the use of low-density wood concrete, which is warmer.

The mixture is placed around the perimeter, - on average, for work shift realize layer 40-50 cm/3-4 m³. It is practically not rammed, only bayoneted and then slightly rammed. Arbolit should be prepared from special wood chips, pre-treated with mineralizers or lime 100-150 kg / m³. When they build a house from wood concrete with their own hands, mixing of the solution must be done by force.

When building houses from wood concrete blocks, professionals recommend considering the following:

It is possible to extract the maximum thermal properties from an object by removing cold bridges, which are characterized by a high coefficient of heat loss. There is a technique for breaking the mortar joint using wooden planks 12x12 mm. Along the entire contour, the solution is distributed between the strips exposed on the sides of the modules;
building a house from wood concrete is not so easy - when dry, the module quickly absorbs water that is present in cement mortar. To prevent this, it is recommended to moisten the surface with water or use an incompletely dried block in the masonry. For such purposes, a thinner cement mortar can be used;
to implement a non-standard project of a house made of wood concrete, modules of complex trapezoidal or angular shapes will be required. Machining is best done on site using a stone saw and other tools.

The manufacturing technology of wood concrete provides such properties that the blocks can be used as a heater in frame housing construction.

Price

Before you build a house from wood concrete, you should decide on the level of costs that will have to be incurred. Arbolite blocks, the price of which is 3.9 t.r / m³, are not a cheap building material. A budget project for a typical building can cost 2100-2500 thousand rubles.

Lightweight concrete, prepared on the basis of special wood chips and cement, allows you to get a high-quality and technological block, which should be used in private housing construction.

Do-it-yourself construction of houses from wood concrete is shown in the video:

Consumption ecology. Manor: Arbolite has been used in the construction of both residential and commercial buildings since the 60s of the last century. Despite its wide popularity, it has both advantages and disadvantages. We want to tell you about the pros and cons of wood concrete, as well as what this building material is.

Wood concrete has been used in the construction of buildings for both residential and commercial purposes since the 60s of the last century. Despite its wide popularity, it has both advantages and disadvantages. We want to tell you about the pros and cons of wood concrete, as well as what this building material is.

Arbolit came to the domestic construction market back in the days of the USSR, in the 60s of the last century. Even then it was widely used in the construction of canteens, industrial buildings. However, in the construction of private houses, the material was rarely used, preferring it natural wood, brick and prefabricated concrete structures. Currently, wood concrete is gaining more and more popularity in the construction of buildings for various purposes.

Let us consider in more detail what kind of material it is, as well as the pros and cons of buildings made of wood concrete blocks.

What is arbolite

The name itself comes from the French word arbre, which means "tree". It is also called "wood concrete" and is made from 3 main components:

Filler in the form of crushed rice straw, flax fire, cotton stalks, needles, bark, but most often - wood chips(spruce, pine, beech), up to 25 cm long and 1 cm wide.
The binder is cement grade not less than M300.
Stabilizers that regulate improved adhesion of components, as well as the degree of hardening of the material, its plasticity - additives of chemical origin, mainly aluminum sulfate, calcium chloride and nitrate, as well as liquid glass etc.

The quality of the material obtained is regulated by the established GOST or TU standards.

Types of wood concrete

Wood concrete is produced in 2 main types:

Heat-insulating - used as a partition wall, as well as a heat insulator, with a density of 400-500 kg / m3.
Structural - designed for the construction of load-bearing surfaces, with a density of 500–850 kg / m3.

There are also 2 forms of material:

Blocks - this option is very convenient in the rapid construction of walls. Blocks can be conventional for building straight walls, and with a U-shaped cut when it is required to create window or door lintels.

Monolithic - a cheaper version of wood concrete, which has a lower strength than block, since in the first version the products go into dressing in the structure. To increase the strength, the monolith is made with a layer of heavy concrete.

Application

Arbolit is intended for:

The erection of load-bearing walls of low-rise residential buildings.
Construction of non-residential premises for economic purposes.
Thermal insulation of existing building walls.

Cons and pros of wood concrete

Any building material has its own advantages and disadvantages. The same applies to arbolite.

The pluses include:

The lightness of the products self-assembly without the use of special equipment.
High thermal insulation characteristics of the material intended for insulation. So its thermal conductivity is on average 0.08 W / (m ° C), which is better than any type of concrete or brick. For example, a arbolite wall 30 cm thick corresponds to 1.5 meter brickwork. At the same time, wood concrete is able to accumulate heat without succumbing to sudden temperature fluctuations. The thermal conductivity of structural wood concrete is slightly higher, and can reach 0.17 W/(m °C).
Since the material has a woody structure, it could be assumed that it is combustible, however, wood concrete is classified as difficult to ignite, and, moreover, does not form a large number smoke. Its fire resistance is equal to - 0.75–1.5.
High vapor permeability allows you to build baths and saunas from wood concrete.
The material is resistant to tension, that is, it is prone to cracks and deformations when the foundation moves by only 0.4–0.5%.
Wood concrete has group V according to the classification of biostability, which means its resistance to rot, mold, and the lack of interest in it from rodents and woodworms without additional impregnation.
Frost resistance is high - from F25 to F50 cycles, however, this figure is significantly reduced in combination with dampness if the wood concrete is not protected by an external insulator.
The positive features also include ease of processing and, meanwhile, a good bearing strength - that is, it is easy to saw it if necessary, as well as to fix any structures on it.
In addition, wood concrete has excellent sound absorption parameters.

The disadvantages of buildings from wood concrete include:

High coefficient of water absorption - from 40 to 85%. Wood concrete, absorbing moisture, releases it during drying. But this applies to random or irregular cases. In unheated rooms with permanent high humidity it is not recommended to use it, or it will have to be plastered with moisture-resistant mixtures and covered with appropriate insulators. In addition, the material saturated with moisture significantly reduces the frost resistance coefficient.
Low strength parameters limit the use of wood concrete. Structural is suitable only for low-rise buildings with a low bearing load (that is, with a height of one floor, it will not work to combine it with heavy materials). The maximum height of wood concrete buildings should not exceed 3 floors.
Many people think that arbolite is a budget product in terms of cost. However, if you choose a material that meets all the parameters of GOST, then the prices for it exceed the cost of foam concrete. So, on average, a cube of arbolite for structural purposes costs about 4,000 rubles, and a foam block costs 2,500–3,000 rubles.

Thus, wood concrete is an excellent material, with an amount outweighing the disadvantages. positive traits, but only if all the necessary operating conditions are observed, as well as with the right choice of material. published

The search for new building materials has never stopped and has been going on throughout the history of mankind. In the course of scientific and practical research, a new modern material, wood concrete, which received official state status in 1983. According to GOST, this material is classified as lightweight concrete with a filler of organic matter, which is intended for the construction of low-rise houses. The characteristics of wood concrete make it easy to build a house with your own hands.

Wood concrete house

Wood concrete properties

Advantages and disadvantages

In the process of designing a house made of wood concrete, the properties and characteristics of wood concrete should be comprehensively studied. The main advantages of this material are:

Good indicators of thermal insulation properties. The presence of wood sawdust in the composition of the material contributes to an increase in this indicator. Warm plaster applied in modern construction, is produced in a similar way.
Strength characteristics are at the level of indicators possessed by cinder block, shell rock or aerated concrete.
The service life does not differ from traditional materials, provided correct execution technological operations during production and compliance with the rules of laying and finishing.
The relatively small mass of wood concrete blocks greatly facilitates the work with them.
The production of the material is quite simple and does not involve significant material costs. Finding materials for the manufacture of wood concrete on your own is not difficult, and you can do without the use of special equipment.

Arbolite blocks

With all the positive qualities of wood concrete, the material is not without a number of disadvantages:

The presence in the arbolite of a significant amount sawdust makes it susceptible to moisture, which can lead to the destruction of the material. In order to protect the material from destruction, the surface of the blocks is plastered, which, in addition, gives them additional strength. The situation in this case is similar to the one when shell rock is used during construction. It is also fragile in the absence of plaster and crumbles under the influence of external factors. The application of plaster gives the material high strength.
For small rodents, wood concrete can serve as both housing and food. To eliminate this problem, a concrete plinth is created with a thickness of at least 500 mm and a height of about half a meter. Rodent attacks can be stopped by laying a chain-link mesh under a layer of plaster.

Classification of wood concrete blocks

The material is subdivided according to the following features.
Dry Density:

500 kg/m3 - heat-insulating;
500-850 kg/m. cube - structural.

Filler

Filler composition:

wood chips;
rice stalks and cotton, remnants of flax and hemp stalks.

Purpose:

low-density materials are used to create a heat-insulating layer of rooms and to create partitions between rooms, as well as walls that are not load-bearing;
with increased strength of the material, it is used in the construction of load-bearing walls.

Specifications

The strength characteristics of wood concrete are in accordance with the tasks assigned to it in accordance with the density of the block.

The average density depends on the components used as filler and binder. With an increase in density, an increase in strength occurs and, accordingly, the class of the material increases.
Thermal conductivity indicators increase with an increase in the amount of binder in the wood concrete. An increase in thermal conductivity leads to a deterioration in strength properties and loss of structural properties.
Frost resistance is at the level of 25-50 cycles.
The degree of shrinkage is affected by the density of the block. It increases as this indicator decreases.
Water absorption is 45-80%, which significantly exceeds this figure for other materials.
The vapor permeability of the material is characterized by high values, which correspond to a similar indicator of wood.
The fire resistance of the material is high level. Arbolit is not able to support the combustion process and has the ability long time withstand exposure to high temperatures.
The sound permeability of wood concrete blocks is at a level comparable to natural wood.
The maximum number of floors of buildings constructed from wood concrete does not exceed three.
The cost of the material is quite affordable for the mass consumer.

Arbolite blocks combine the properties of various materials

Do-it-yourself arbolite blocks manufacturing technology

The process of producing wood concrete blocks is so simple that you only need the ability to properly use a concrete mixer and knowledge of the proportions of the material components.

The main component is wood filler, on which depend operational properties building material. According to GOST, its size is 40x10x5 mm. In this case, the presence of small sawdust is allowed, the share of which in the total volume does not exceed 20%. To obtain high-quality material, an important requirement is the removal of sugar from the raw material. For this purpose, wood is soaked with the introduction of liquid glass into the solution. This process lasts for eighty days with constant stirring of the mass to prevent decay. The maximum effect is achieved when using a solution of calcium oxides, which is abundantly watered with lumber.

Finished block

The time required for the preparation of raw materials allows the assembly of molds for the production of blocks.

The form is a construction resembling a box, on the bottom and walls of which linoleum is laid. This is necessary to facilitate the process of extracting finished blocks.

After a certain number of formworks have been collected and the wood filler has completely dried, they begin to manufacture blocks. The technology consists in loading the components of the wood concrete into the cavity of the concrete mixer according to the proportion. The composition of the material is determined by the following proportion: one bag of cement requires two bags of sand and six bags of prepared wood pulp. Then water is introduced and mixing is started. The result should not be a liquid mixture, but a wet mass.

A mixture of cement and wood must be loaded into molds and carefully compacted. At the end of these operations, you should give a day so that the mixture can dry.

At the end of the specified period, it is necessary to carefully remove the received blocks from the molds, which are to be reused for the manufacture of the next batch of products. The use of products is allowed provided they are completely dry. This requires at least 3-4 days.

Simplicity production process production of wood concrete blocks does not reduce the requirements for finished products. In the production of this building material, the recommendations described below should be followed.

In production, it is necessary to use, in addition to large wood chips, small sawdust. This will reduce the thermal conductivity of the material.
Properly carried out removal of sugar from wood is a guarantee of the absence of swelling of wood concrete when it is used in construction.
It is important that thorough mixing occurs during the preparation of the mixture. Fulfillment of this condition will allow to impregnate the pores of the wood material well.
The introduction of the required additional materials into the solution makes it possible to give the wood concrete specific characteristics. As a percentage, their number should not be more than 2-4% of the total volume of the mixture.
The cement used in the preparation of the mixture must be grade M400, not lower.

Blocks can be made by yourself

The process of building a house from wood concrete: step by step instructions

Foundation construction

Strip foundation for the house from wood concrete

When arranging the foundation, the characteristics of wood concrete should be taken into account. When building a house from wood concrete with your own hands, you can use any type of foundation. This is due to the fact that even with a significant subsidence of the structure, cracking of the wall made of wood concrete does not occur, due to its ability to withstand significant bending loads. Thus, it is possible to use a suitable foundation, the construction of which is associated with lower costs. It is considered that the most suitable foundation design is a foundation using bored piles or a traditional strip foundation.

It should be remembered that wood concrete has one significant drawback - significant moisture permeability. Therefore, it is imperative to properly organize the waterproofing of the foundation. This event can be done in the following way:

make an elevation of the foundation at the level of half a meter from the ground;
build a substrate of brick, half a meter high.

The laying of wood concrete blocks is carried out using lime mortar, to which cement is added in small quantities.

Walling

When building a house from wood concrete with your own hands, it is important not to neglect the following recommendations:

The thermotechnical characteristics of the material can be fully utilized provided that there is no presence of cold bridges, which lead to significant heat losses. To eliminate them, it is necessary to use the technology of breaking the mortar joint, which uses wooden planks.
In order to prevent the absorption of moisture in the cement mortar, blocks that are not completely dried are used, or the surface of the dry material is wetted.
The use of a thinner solution is another solution to the problem described above.
The use of wood concrete in construction implies the obligatory finishing of its surface.
If it is necessary to use non-standard forms of the wood concrete block, it is desirable to machine it on site. This will reduce construction time and money.

Home construction

Exterior finish

The surface of wood concrete blocks has a roughness, which ensures reliable adhesion of wood concrete and plaster. This eliminates the need for additional measures to prepare the walls. As facing material other materials may be used. In addition, it is quite possible to use acrylic urethane facade paint.

Exterior finish

Finishing is allowed only with such materials that have a reliable adhesion to the wood concrete, while performing protective functions. In the event that the surface of the walls is uneven, the construction of a crate made of wood is allowed.

Interior decoration

Decorating the walls located inside the house has no restrictions. The only condition for the operation of wood concrete in this case is the humidity of the premises, which should not be more than 75%.

Roof device

An important stage in the construction of a house from wood concrete blocks with your own hands is the arrangement of the roof. During its construction, it is important to correctly redistribute the loads that are transferred to the walls of the building. To solve this problem, there are various ways, for example, the organization of a reinforced cement mortar screed.

Roof device

Wood concrete is an ideal material for the construction of small-sized housing.

Small-sized refers to a single-family home, not an apartment building.

In addition to building blocks, it is used to create thermal insulation materials.

Due to the fact that it is lightweight, it is recommended to use it in areas where there is a risk of earthquakes.

We want to tell you what wood concrete is and show what it is capable of.

History of creation

The idea of wood concrete is as old as the construction itself. In Asia, from time immemorial, a mixture of chopped cane, straw and clay, called adobe, in the form of bricks or blocks, has been used to build small dwellings. In dry areas, even under winds and frosts (and in the desert it is very cold in winter), houses made of adobe have been standing for several centuries.

Arbolit was invented in the thirties and forties, officially approved as a building material in the 60s. Launched into mass production as a form of lightweight concrete, it has been used in the construction of many buildings in the residential sector. They are well preserved and are still in use today.

Components

The basis of wood concrete is wood chips and shavings. According to GOST 19 222 84, the content of wooden components is 80% of the total volume.

It is best to obtain chips by mechanical crushing into pieces no longer than 2.5 cm.

Binding materials - cement M500, sand and water.

Some manufacturers add coagulants to the mixture, which increases plasticity. As the volume of the tree increases, concrete becomes lighter and can be used as.

Mounting method

Installation of wood concrete walls is very simple and fast. In terms of labor costs, it is comparable to foam concrete masonry, but 3-4 times faster. The blocks are laid on a conventional cement-sand or perlite mortar. Additional reinforcement of the masonry due to the large size of the blocks is only recommended by technology. This can lead to freezing of the seam. It is possible to lay reinforcement in specially sawn cuts.

Specifications

Arbolite surpasses wood in its ability to retain heat. A wall of wood concrete 30 cm thick corresponds to a brick wall of 60-70 cm. The material breathes much better than wood thanks to the fine mesh structure. Arbolite shrinkage is 0.4% (for wood up to 10%), mechanical resistance to bending is not inferior to wood. It practically does not burn, and if it is specially set on fire, it smolders a little outside and immediately stops.

Companies building houses from wood concrete

Due to its excellent building qualities, wood concrete is again becoming in demand in the market for the construction of individual housing. We invite you to get acquainted with some offers and areas. Can you afford the proposed houses made of wood concrete?

We specifically chose the segment of budget housing. It is impossible to call wood concrete the most inexpensive material, the production technology is not cheap. But if we consider the cost of masonry per 1 sq. meter of the wall, and with decoration with decorative bricks, it comes out cheaper than walls made of bricks or ceramic blocks by 50%. And the tree turns out to be more expensive in 2 times.

Turnkey construction can only be carried out by companies with extensive experience and a team of specialists of all profiles. Natural selection allows success only to those whose reputation and price-quality ratio of objects is better than those of competitors.

When choosing a future contractor, you can and should learn as much as possible about his previous projects. So we recommend not to be shy in the search for reliable information. Contact the owners of housing built by the selected contractor. Builders should be proud of their properties, so finding addresses is easy.

Woodhousegroup

He proposes to build a house from wood concrete in a complete set "for finishing". The site presents ready-made projects, among which we found one suitable in order to make an approximate calculation of the cost of work and materials.

The project of a one-and-a-half-story cottage (the second floor is made as an attic) is called Ecohouse-1. The total area of the house is 101 sq. meter. Internal layout the customer can discuss with the contractor.

The basic equipment is estimated at 2,121,000 rubles. It includes:

Foundation(screw piles 150 mm with a reinforced grillage 0.5 m) on a sandy compacted cushion 0.3 m. Excavation work on the development and movement of soil is included in the price. Conclusions are laid for communications and the ground loop, bituminous waterproofing is made.
External walls from wood concrete blocks 500x200x400 mm, laid on a perlite solution. Ceiling height 2.8 m (excluding armored belt). Window and door lintels are reinforced concrete insulated.
Internal walls from wood concrete 500x200x300 mm.
Exterior finish made with tiles fake diamond and plasters.
Covering the first floor
Roof(wooden crate made of timber 50x200 mm., Laid between the rafters with mineral wool insulation, impregnated flame retardants, vapor barrier from roll materials, metal tile).
Window from a metal-plastic profile at the choice of the customer. The door is metal insulated with a safe lock.

All costs for the delivery and storage of materials and the accommodation of builders during the work are included in the cost of construction.

All other work on bringing the house to a turnkey state can be estimated according to the standards generally accepted among professionals at 25–30% of the cost of the “finishing” package.

Of course, the modern market provides materials of any value, but let's be rational. Plastic windows, heated floors, good heating systems with automatic adjustment, interior finishing of walls and ceiling - everything can be realized at a reasonable price. Therefore, the total costs will be approximately 2,600,000 rubles.

Company "Arbolitstroykomplekt"

Produces a full range of construction services. The production of wood concrete is another component that allows us to successfully compete with other contractors. Provides a guarantee for all work performed for a period of at least 5 years.

Projects of houses are developed taking into account the wishes of the customer. The box size and design are taken as a basis, and this is enough. Therefore, the customer can focus on the average prices of individual elements of the building. The company offers for 14,000 rubles. per sq. meter to build the basic equipment of the house.

When calculating the cost of a basic house, we chose a total area of 135 sq. meters. In the virtual project, there is only a heated area, there will be no veranda or other cold rooms.

Building a house according to the selected dimensions will approximately cost 1,890,000 rubles. The building will consist of a common thermal circuit. Here is the scope of work carried out by the company:

Foundation(bored piles 150 mm to a depth of 2 m with a reinforced grillage 0.4x0.4 m), concrete M300, reinforcement A12, compacted sand bedding 0.3 m. All work on the development and movement of soil. Conclusions for communications and ground loop, bituminous waterproofing of the foundation.
External walls from wood concrete blocks 500x250x300 mm, laid on a cement-sand mortar. Ceiling height 2.8 m (excluding armored belt). Special arbolite blocks with a U-shaped profile are mounted in window and door lintels, inside which reinforcement is laid and concrete is poured.
Internal walls from wood concrete 500x200x250 mm.
Interfloor ceilings on wooden beams 100x200 mm, fire and bioprotective.
Roof(double crate made of planed boards 50x200 mm, laid between the rafters with mineral wool insulation, impregnated with fire retardants, vapor barrier made of rolled materials, metal tiles).
Window from REHAU metal-plastic profile and double-glazed window. Reinforced door with a good lock.

External finishing is not included in the basic package. Let's round up 30% of the cost for finishing and as a result we get about 2,500,000 rubles.

Company "Arbostroy"

Produces wood concrete since 2006. The complete sets of houses produced by it are united in the groups "Standard", "Comfort". When ordering a house with a total area of 150 sq. meters, the company guarantees the performance of work for 16,500 rubles per square meter. meter. The plan is chosen by the client.

For 2,475,000 rubles, the company will build a one-and-a-half-story cottage in the Comfort package (the second floor is an attic). All other works up to the turnkey condition can be ordered for an additional fee.

The trim package includes:

Foundation(monolithic reinforced slab 0.15 m with a monolithic tape 0.3x0.6 m). Along the perimeter of the pouring, a thermal circuit made of wood concrete is laid out. Compacted sand cushion 0.3 m. metal corner L=63, communications conclusions and all earthworks are included in the cost of works.
External walls from wood concrete blocks 500x250x400 mm, laid on a warm solution (cement-sand-perlite). Ceiling height 2.75 m (excluding reinforced belt). Window and door lintels are reinforced concrete, insulated with wood concrete.
Internal walls from wood concrete 500x250x200 mm.
Covering the first floor from reinforced reinforced concrete slabs, second floor wooden beams 100x200 mm.
Roof(wooden crate made of 50x200 mm timber, laid between the rafters with mineral wool insulation, impregnated with fire retardants, vapor barrier from rolled materials, plywood layer treated with a hydrophobic composition, Kerabit bituminous tiles, color to choose from).

To bring the house to a state ready for settlement, another 700,000 rubles will be required.

With all the advantages of wood concrete construction, such as warmth and strength, one drawback is still worth noting. The water absorption of the material is quite high, and when the wood concrete swells, it can become covered with microcracks. The tree increases in volume, and the cement-sand mortar that binds it does not accept new conditions and cracks. Existing chemical additives help to reduce the degree of water absorption at times. And for outdoor protection, it is better to choose waterproof materials.

Wood concrete has good prospects in the construction market. With its remarkable heat capacity, this material should be appreciated by areas with a continental climate, which include the Moscow region. We hope that our article has shown you another opportunity to build your warm house.

Watch the video for facts about building a house from wood concrete: