Monolithic flooring on aerated concrete blocks. Using aerated concrete floor slab

The advantages of houses made from aerated concrete blocks are the short construction time. This promotes rapid housing construction, including private housing. The choice of covering the first floor of a house from aerated concrete depends on many factors: the purpose, number of storeys of the house, the possibility of using special equipment, the cost of work, the level of professionalism of the builders and knowledge of the structural features of the materials. The reliability and durability of a building largely depend on the correct solution to this issue.

Requirements for flooring for a house made of aerated concrete

A house made of aerated concrete is built no higher than three floors, since the cellular structure of the blocks has less compressive strength compared to conventional concrete. The ceiling in such buildings should be selected taking into account:

  • self-gravity and floor walls, or weight load calculations;
  • strength and optimal rigidity;
  • sufficient degree of sound insulation;
  • fire safety factor.

The resulting force on the load-bearing walls is redistributed by the ceiling. It is recommended to make a reinforcing belt for any of its types, which enhances the spatial rigidity of the building and provides protection against crushing of fragile aerated concrete.

The upper cut of load-bearing walls must be strictly horizontal; if a defect is detected, elimination can be done by erasing aerated concrete blocks for leveling.

Types of floors

The selected overlap depends on the method of execution and construction material. The following modifications are most widely used:

  • slab;
  • prefabricated monolithic;
  • monolithic;
  • based on wooden or metal beams.

Other types of flooring: coffered, brick, hipped, are structurally complex and expensive, and are not used in the construction of low-rise buildings made from aerated blocks.

Slab floor

The first floor slab is assembled at the construction site using reinforced concrete slabs or aerated concrete. The choice between them is determined by the fundamental difference in weight. This type of construction is the fastest in terms of time and is not related to the seismic activity of the region. The number of slabs depends on the size of the object and the standard dimensions specified at the factory. The main thing is that the span between the walls is 30 cm less than the overlap for a support installation of 15 cm on each side and meets the standards for the maximum distance:

  • 6 meters - smooth slabs;
  • 9 meters - with ribbed top.

The thickness is selected taking into account the potential load, since the ceiling is a kind of rigidity disk. For a two-story aerated concrete house, a height of 12 to 20 cm is sufficient for smooth surfaces and 25 to 30 cm for ribbed surfaces.

The slabs are laid strictly along the load-bearing walls of the first floor of the same level. The construction of internal partitions takes place later. Before installing the ceiling, a distribution brick pad one brick thick is built on the top row of aerated concrete blocks. After securing the strength, the slabs are placed on the layer of cement mortar using a crane.

Advantages and disadvantages of aerated concrete floors

Advantages of flooring made of aerated concrete or reinforced concrete slabs:

  • fast installation in a short time;
  • durability and reliability;
  • high load-bearing capacity, from 600 to 800 kg/sq.m;
  • excellent heat and sound insulation due to internal voids;
  • factory production is distinguished by high-quality processing of materials;
  • affordable price.

The disadvantages include:

  • the need for special lifting equipment;
  • the presence of access roads to the house made of aerated blocks for placing large slabs;
  • limiting the choice of slabs by size;
  • restrictions in application when load-bearing walls are curved;
  • installation experience.

To adhere the slabs, a sand-cement mortar is used or mineral wool is laid, which strengthens the thermal insulation of a house made of aerated concrete.

Prefabricated monolithic floor

The technology does not require special equipment due to the design, which allows for not the heaviest elements for covering the first floor.

The installation process consists of initially placing the beams at a distance of 60-80 cm. Between them, expanded clay or polystyrene concrete blocks are placed on the lower flanges of the beams. A formwork is formed, on top of which a reinforcing mesh is placed. The structure is poured with concrete and takes time to dry completely.

Insulation is carried out using expanded clay, expanded polystyrene, high-density basalt wool or other thermal insulation materials.

Pros and cons of the design

The advantages of the design are manifested:

  • in carrying out installation without special equipment;
  • excellent sound and vapor insulation;
  • strength of prefabricated monolithic composition.

But building codes, unfortunately, do not include information and recommendations for this type of flooring. Therefore, its use is allowed in houses made of aerated blocks of no more than 2 floors.

Monolithic ceiling

This modification is being prepared at the site for building a house. The process is quite complex and labor-intensive, but indispensable for non-standard building shapes. The resulting flat surface and the absence of work on sealing seams attracts the choice of this type of flooring.

At the beginning of the process, it is necessary to install formwork to form a monolithic slab. Based on your financial capabilities and availability of time, you can buy ready-made inventory formwork or make it yourself from sheet materials or boards at the installation site.

Concrete for pouring the floor is prepared according to the classical scheme: three parts sand and one part cement. Add crushed stone or gravel as desired. The first layer of concrete should not exceed one third of the floor; a reinforcement cage is placed on it. Then, using the pie principle, the second filling and laying of the reinforcing mesh is done. After the third pouring of concrete, the total thickness of the floor is 15-20 cm.

Increasing the layer thickness significantly affects the overall weight of the structure. For a house made of aerated concrete blocks, these are significant parameters. When the concrete reaches approximately 80% strength, this occurs within 3-4 days, the formwork can be dismantled.

To reduce the thickness of the floor and the overall structural weight, a ribbed monolithic slab is made, which includes beams and thin concrete layers. In this case, the pressure is redistributed not to the aerated concrete walls, but to the beams.

It takes much more time to install formwork with lower sheets of profile metal, which will become the reinforcing base. This option is indispensable in rooms with large spans between load-bearing walls of up to 9 m.

Monolithic slabs do not allow self-production of concrete in small-sized mixers. The solution must be ordered in the parameters and volume for one-time filling of the surface from an organization that guarantees product quality.

Pros and cons of monolithic flooring

Advantages:

  • high load-bearing capacity;
  • options for non-standard configurations with geometric complexities;
  • application in case of significant spans between walls over 6 m.

Flaws:

  • large time costs to set the strength characteristics of concrete;
  • mandatory calculation of loads on the structure;
  • high cost of overlapping;
  • application of equipment: mixers and concrete pumps;
  • extensive preparatory work;
  • strict adherence to the solution preparation technology;
  • limitation of work depending on temperature conditions.

Beam floors

Floors in a house made of aerated blocks can be made using metal or wooden beams.

The first option has a low price and is popular for installing interfloor structures. The second, similar in construction technology, is very expensive due to the price of rolled metal products and the need for equipment to install heavy beams.

Heat-insulating material is placed between the wooden beams. A sheathing is installed on the beams on both sides, which, on the one hand, serves as the basis for the subfloor, and on the other, as the ceiling surface.

It should be noted that wooden beams must be treated with fire and bioprotective impregnations, and metal floor beams are subject to mandatory anti-corrosion treatment. To prevent moisture from penetrating from the concrete to the beams, a layer of waterproofing is needed.

The beam floor of a house made of aerated blocks has significantly lower load-bearing capacity, so its use is recommended in buildings with a small area and a distance between walls of up to 6 m. This is especially significant for areas with seismic activity over 7 points.

Advantages and disadvantages

Positive properties of beam technology:

  • availability of installation work with metal beams and wooden floors;
  • low cost.

Flaws:

  • use only in two-story houses;
  • shorter service life compared to concrete floors;
  • the presence of restrictions due to the flammability of materials.

Any ceiling can be installed in an aerated concrete house, provided that the load on the load-bearing walls is accurately calculated. The optimal load for small buildings of 2-3 floors is when installing aerated concrete slabs. The weight, size of the slabs, average price and technological features of constructing floors with aerated concrete slabs make this choice available in mass housing construction.

To decide on the choice of flooring for an aerated concrete house, you first need to make calculations on the load-bearing capacity of the walls, that is, what maximum load the walls can withstand.

After all, if your walls are only 200 mm thick, made of D400 aerated concrete with strength class B1.5, and at the same time the span length is quite large, then the load-bearing capacity for a monolithic or slab floor may not be enough. In such a situation, it is necessary to use wooden, aerated concrete or prefabricated monolithic floors.

Also important factors influencing the choice of floors are:

  1. Floor bearing capacity
  2. Maximum span length
  3. Soundproofing
  4. Price
  5. Construction time
  6. Possibility of access for special equipment

We will talk about all these factors and nuances further, considering and comparing each of the flooring options.

Types of floors:

  • Monolithic
  • Prefabricated monolithic
  • Reinforced concrete slabs
  • Aerated concrete slabs
  • Wooden or metal beams

Floor slabs are a common choice for aerated concrete houses. Reinforced concrete slabs have the following advantages and disadvantages:

  1. Low cost.
  2. Good load-bearing capacity (from 400 to 800 kg/m2).
  3. High speed of installation of the slabs themselves.
  4. Good sound insulation of the ceiling.
  5. Slab length up to 9 meters.
  6. Installation requires hiring a crane.
  7. It is necessary to build an armored belt around the perimeter of the walls.

Such floors are made from reinforced autoclaved aerated concrete with a density of D500 or D600. It is possible to order your own version of the slabs at the factory. Although the thermal insulation of these floors is good, there is little point in it, since the second floor also needs to be heated, and there is little point in separating them with thermal insulation.

If we consider an aerated concrete floor as a ceiling from a cold attic, then it is too expensive; it is cheaper to make it from wooden beams insulated with mineral wool.

Advantages and disadvantages:

  1. High installation speed.
  2. Lightness of the slabs.
  3. Excellent thermal insulation.
  4. You can do without an armored belt, although it is desirable.
  5. Average load-bearing capacity (up to 600 kg/m2).
  6. The length of the slabs is up to 6.4 meters.
  7. High price.
  8. Requires hiring a crane.

The main advantage of monolithic floors is that you can fill the floor of almost any shape, which gives greater freedom when planning your house. To strengthen the structure, reinforced reinforced beams are made, which increase the load-bearing capacity of the floors and the possible span length. Unlike floor slabs, the monolith distributes the load along the entire perimeter of the walls.

Advantages and disadvantages:

  1. Load-bearing capacity (up to 1000 kg/m2).
  2. Span length up to 9 meters.
  3. Excellent sound insulation.
  4. No armor belt required.
  5. You need to hire a concrete mixer and a concrete pump.
  6. The highest cost of all flooring options.
  7. It takes a long time to build and wait for the concrete to harden.

If you are planning large halls and rooms in your house, then the load-bearing capacity of aerated concrete itself may not be enough for a monolithic floor; in this case, you can use reinforced concrete columns, reinforced slabs and beams. You can get acquainted with such reinforced concrete products by following the link.

Prefabricated monolithic floors consist of factory-reinforced beams, between which aerated concrete blocks are installed, acting as fillers. Reinforcement is laid on top and high-quality concrete M250-M300 is poured.

Advantages and disadvantages:

  1. Span length up to 9 meters.
  2. Freedom in planning.
  3. An armored belt is not required.
  4. Relatively light weight.
  5. Load-bearing capacity (up to 600 kg/m2)
  6. Average price.
  7. Greater savings in concrete compared to pure monolith.
  8. Good sound insulation.
  9. No installation of an armored belt is required.
  10. No tap required.

This ceiling is also very common, and it can be made by two people, without the use of special equipment. Massive bars made of solid or laminated wood with a thickness of up to 200 mm and a height of up to 400 mm are used as beams. Beams must be treated with an antiseptic, and the areas where they rest on the walls must be waterproofed with mastic or roofing felt. The pitch of the beams depends on the expected loads and varies from 300 to 600 mm.

Advantages and disadvantages:

  1. Lowest cost.
  2. High installation speed.
  3. No special equipment required.
  4. Low load-bearing capacity.
  5. Poor sound insulation.
  6. An armored belt is required.
  7. The maximum span length is 6 meters.

You can make a span of more than six meters, but then a deflection will form and the load-bearing capacity will decrease.

Aerated concrete is one of the types of extra-light (cellular) concrete that has undergone a hardening process under conditions of high temperatures and 100% humidity. Low thermal conductivity, low specific gravity, fire resistance and environmental friendliness made it possible to use it in individual and industrial construction on a par with brick. The large dimensions of the blocks with low weight make it possible to construct buildings in the shortest possible time.

Every building needs a ceiling for the purpose of installing a roof, flooring or for interfloor separation. The choice of material is determined by the purpose of the structure being built, budget, time frame and technical characteristics. According to the construction technology, the ceiling can be monolithic or prefabricated.

For houses made of aerated concrete blocks, it is allowed to use prefabricated wooden and metal structures, or monolithic slabs independently produced on site. Naturally, each method has its own advantages and is not without certain disadvantages. What to consider when making a decision depends on various factors and preferences, but here are the essential points to keep in mind:

  • The need to use special equipment and tools.
  • Cost of materials and installation work.
  • Timing of installation and subsequent hardening of concrete.
  • The relationship between the maximum weight of a material and its strength.
  • Service life and resistance to natural factors and chemicals.

There is no need to take into account the characteristics of the maximum permissible loads when selecting flooring materials for an aerated concrete house, since all types of structures provide the necessary degree of strength with a significant margin (indicators vary from 500 to 800 kg per 1 m 2 of base).

Monolithic slabs

This type is distinguished by its highest load-bearing capacity (more than 800 kg/m²) and its functionality. It can be equipped for a span of any size and dimensions, as well as various geometric shapes (circle, semicircle, etc.).

The technology involves the production of flooring directly on site. For these purposes, home-made or factory-made concrete is used, which is used to fill the previously installed formwork with supports on the 1st floor manually or by means of a pump. The mixture is poured in such a way that the slab has a thickness of 100 to 200 mm, depending on the design conditions.

When choosing monolithic structures for covering a house made of aerated concrete, several factors should be taken into account:

1. Before filling the formwork with prepared concrete, it is necessary to carry out preparatory work.

2. If the solution will be prepared on site, special equipment will be required (concrete mixer and pump for supplying the mixture).

3. Construction time will increase due to the time for complete hardening of the load-bearing structures.

4. It will be necessary to monitor the work of masons in real time to ensure that proportions are observed to achieve the required brand strength.

5. An alternative option is to order ready-mixed concrete from the plant.

6. In addition to the standard package of permits for a house, you need to have a project.

7. High cost of monolithic flooring.

Prefabricated structures

For the construction of prefabricated floors of the first floor, ready-made slabs of reinforced and aerated concrete, timber and wooden and metal beams are used.

1. Covering with reinforced concrete slabs.

Hollow-core reinforced concrete slabs are made from heavy, light or dense silicate concrete with mandatory reinforcement with reinforcing steel. Their use is completely permissible in houses built from aerated blocks; they can withstand a load of 800 kg/1m2 and are recommended for spans of 4.5–6 meters.

The installation technique involves installing an armored belt around the perimeter of the house made of aerated concrete, which will evenly distribute the fairly large load of the load-bearing structures. The advantage of this ceiling is its cost-effectiveness, even taking into account the costs of hiring a crane for installation and transport for delivery to the construction site. The disadvantages are heavy weight, the need for special equipment and size limitations.

The first floor of a house made of aerated concrete is often covered with beams made of wood of various species or laminated veneer lumber, which are quite easy to install. The moderate price of this material, reduction of costs and additional costs for special equipment, payment of workers makes it more preferable than reinforced concrete slabs in individual housing construction. The load-bearing capacity of a wooden floor will be 2 times less than that of reinforced concrete. Beam floors have the advantage of simple installation, relatively low weight and compactness, and low cost.

Metal structures are made from hot-rolled bars: I-beams, channels, square pipes. They are also used to strengthen floors. For areas with possible vibrations of the earth's surface, a seismic belt is first constructed. Then they begin to lay the beams, observing a step of 90-120 cm, so that they extend onto the wall by at least 25 cm, and if there is a seismic belt, then along its entire width. They are fastened with studs.

Attention! In the case of a house made of aerated blocks, waterproofing must be laid between the floor beams and the walls of the first floor.

After this, the structure is lined with rough boards or plywood. The working layer of boards is secured perpendicular to the beams using nails. However, it would be more effective to use screws or self-tapping screws for this purpose. The installation of metal beams is practically no different from the installation of wooden beams.

3. Aerated concrete.

The same properties and characteristics of the building materials of the walls of the first floor and the ceiling (for example, thermal conductivity) make the decision in favor of aerated concrete slabs more than justified. And the choice in this segment is quite large: prefabricated structures made of blocks, supported by reinforced concrete beams, reinforced or monolithic slabs.

In addition, most manufacturers make aerated concrete products to order according to your dimensions, but the average dimensions are 6 m in length and 1.5–1.8 m in width with a height of 30 cm. The maximum permissible load is close to reinforced concrete slabs - approximately 600 kg/ m 2. The process of their hardening takes place under autoclave conditions, and the density of the finished products must meet the standard of 500 kg/m3 (extra-light concrete).

Often, monolithic slabs have tongue-and-groove joints, due to which they are closely adjacent to each other, forming a solid base. Installation of aerated concrete floors on an area of ​​50 to 100 m2 can be carried out by 2-3 masons in one day. The most important task in the entire process is juggling the timing of production and delivery of slabs to the site with the operating time of the rented crane.

Floors made of prefabricated monolithic T-like gas blocks using special lightweight reinforced concrete beams 7 m long and 20 cm high, due to their overall low weight (about 120 kg), can be installed manually without special equipment.

The beams are laid in increments of 68 cm, so that a 60 cm block extends onto it, 2 cm on all sides. This also applies to the first row of the house; the gas block must rest at least 2 cm on the load-bearing wall of the 1st floor. The gaps that are created between the masonry are filled with class B20 concrete. Upon completion of this work, a reinforcing mesh is knitted and a layer of mortar 5 cm thick is poured. Under normal conditions, concrete will gain grade strength in a month, but partial loading of structures is allowed after a week.

All existing types of floors are suitable for houses made of aerated concrete. The process of their installation also does not have any distinctive features. Therefore, the choice of the type of flooring in a house made of aerated concrete depends directly on the client.

First of all, it is necessary to proceed from the convenience of the client. The simplest flooring option in this case is ready-made reinforced concrete slabs. The main advantages are the speed of installation and reliability, confirmed by the manufacturer’s quality certificate. The client can be sure that the slabs can withstand, say, 700 kg per 1 sq. m. according to the factory data, which means you can safely install any furniture without fear that anything will happen to the ceiling.

If the access roads do not allow ready-made slabs to be delivered to the house, it is necessary to select another most suitable flooring option. For example, pouring a monolithic slab or installing a wooden floor.

It is important to take into account the client’s financial situation.

When installing a wooden floor, it is possible to carry out the work gradually. So, for example, during construction, you can first lay logs, which will be enough to continue building the walls of the second floor and roof, and do the entire floor pie later, when money appears.

When installing a monolithic floor, this is impossible - the entire process must be carried out immediately and in full. This will require considerable funds for formwork, reinforcement and concrete.

If the client’s financial base is sufficient, then there is nothing to worry about. However, otherwise, when choosing a monolithic floor, there may simply not be enough money to install the walls of the second floor or install the roof. The choice always remains with the client.

Types of floors

So, there are such types of floors as monolithic, prefabricated, wooden and aerated concrete. All of them are suitable for installing floors in houses made of aerated concrete; there are no special features of using these floors in aerated concrete. Let's take a closer look at each of them.

Floor slabs for aerated concrete houses

Ready-made reinforced concrete floor slabs for an aerated concrete house are delivered to the cottage by truck. Using a crane, the slabs are laid on the load-bearing walls through an underlying layer of insulating mortar. Just like in a brick house, it is necessary to support the floor slabs on aerated concrete blocks by at least 120 mm, maximum by 150 mm - this is more than enough.

Wooden floors in aerated concrete house

When installing wooden floors, the joists must be supported 200 mm through the waterproofing. To do this, during the process of laying the blocks, you can determine in advance the installation location of the logs and leave niches for them, or during the laying process you can pinch the logs.

Let's say the log is 200 mm in height and 100 mm in width. It is necessary to make a niche 200 mm high, 100 mm wide and 200 mm deep with a small margin to accommodate the log.

The lag step is determined by calculating the loads. Knowing the cross-section of the lags, what load one lag carries and, accordingly, what the pitch of these lags is, we can calculate the load-bearing capacity of the wooden floor.

The installation of logs is necessary for the convenience of further installation of the walls of the 2nd floor and roof.

After the box is ready, we return to the ceiling.

From below we hem a hemming board about 20-25 mm thick with continuous flooring. We make a vapor barrier under it to protect the basalt insulation, laid inside between the joists on the board flooring, from moisture. The thickness of the insulation is 100-150 mm, this is enough for good sound insulation. We lay waterproofing on top of the joists to protect the basalt insulation from moisture from above. And then, as an option, we lay the floorboard. As a result, we have a finished pie.

As a rule, a laminate is laid on this floorboard through a backing, or the floorboard itself is covered, mainly in dachas. To do this, it is treated, impregnated and painted, resulting in a finished wooden floor.

What to do if options such as laminate and wood flooring do not suit you? Let's say floor tiles are more common in the bathroom. There are some tricks. You can lay a cement-bonded particle board on the floorboard, which, in turn, can be tiled.

Monolithic ceiling

When installing a monolithic floor, we make temporary formwork, knit a frame from reinforcement directly at the construction site and fill it with concrete. After the concrete gains grade strength, we dismantle the formwork. We get a monolithic slab.

The main advantage of a monolithic slab is the ability to fill floors of various configurations, be it semicircular or more complex elements. However, it is important to understand that this work requires high-level specialists. The correct choice of design reinforcement and frame alignment determines how this slab will subsequently accept loads and whether it will collapse. The process of pouring a monolithic floor must be monitored by builders who have extensive experience in such work. Their mistake could cost you dearly.

Reinforced concrete beams

When installing the floor, it is possible to use reinforced concrete beams. They are a purlin 6 meters long and about 0.5 m high. This is a full-fledged load-bearing beam on which even floor slabs can be supported. Thus, with the help of a reinforced concrete beam it is possible to block an opening of up to 6 m, where the beam will take the load of the floor slabs.

Aerated concrete floors

Previously, the Cottage plant produced aerated concrete floors, but due to economic infeasibility they stopped producing them.

In modern construction, various types of floors are used, which differ not only in laying technology, but also in material. Today, a material such as aerated concrete is becoming increasingly popular, which is used both for laying walls and for arranging interfloor structures.

Advantages of using aerated concrete

Do-it-yourself aerated concrete floors are distinguished from similar structures made of other materials by the following characteristics:

  • High level of durability. They can withstand a load of 300-600 kg/m2;
  • Light weight up to 750 kg;
  • Exact geometric parameters;
  • Fastening system for maximum fit;
  • Ease and simplicity of installation;
  • Ease of transportation;
  • Long operational period;
  • Environmental Safety. The composition of such blocks includes cement, lime, silicon, aluminum - materials that are absolutely not dangerous to humans;
  • Environmental resistance.

Types of aerated concrete floors

There are the following types of similar structures made of lightweight cellular material:

  • Reinforced;
  • Monolithic flooring on aerated concrete with stressed or unstressed reinforcement;
  • Prefabricated monolithic structures consisting of parts such as prefabricated floors made of aerated concrete, which is reinforced from above with reinforced concrete.

Prefabricated monolithic floor

Standard products for the construction of floors of this type are manufactured at reinforced concrete factories, giving them the following overall dimensions:

  1. Length – no more than 6 m;
  2. Width – no more than 1.8 m;
  3. Thickness – 30 cm.

The design load on such surfaces is about 600 kg/m2 and higher. To install this type of product, the strength of 2-3 builders and the help of a crane are required.

Note!
To make it easier to lift the slabs using lifting equipment, steel loops are provided on their surface.

To ensure sealing of the connection of adjacent slabs with a high level of strength, a tongue-and-groove system is used in the side faces of each product. The tightening clamp used during installation will help seal the connections as much as possible.

Note!
In order not to damage the corners or side edges of the slabs during transportation, it is advisable to use soft loading belts.

A distinctive feature of prefabricated monolithic floors is their design, consisting of standard T-shaped blocks made of aerated concrete, which are installed on reinforced concrete reinforced beams.

The reinforced frame for creating such a structure is called “Trigon” and consists of the following elements:

  1. Two steel reinforcing bars located along a flat concrete part with recess into its surface;
  2. The third reinforcing longitudinal rod is installed at a height of 20 cm from the lower plane of the concrete base;
  3. The two lower reinforcing rods and the upper one are connected using transverse connections that form triangles.

From below, the reinforcement of this design is covered with a layer of concrete at least 3.5-5 cm thick. This thickness is sufficient to ensure the required level of heat resistance for the time specified by the regulatory documentation.

This frame design prevents the possibility of structure deflection even when the rated load is exceeded by 1.5 times.

The instructions for making a trigon stipulate the use of rods of the following diameters:

  • Bottom 2 rods with a diameter of 12 mm;
  • Top rod with a diameter of 8 mm;
  • Longitudinal rods with a diameter of 16 mm;

The main characteristics of this beam include:

  • Length – 7 m;
  • Width and height - 20 cm;
  • Weight – 17 kg 1 linear meter of structure;
  • Maximum weight 12 kg;

Advice. If, in the process of creating a ceiling, such a product needs to be shortened or a hole drilled in it, you should use methods such as cutting reinforced concrete with diamond wheels and diamond drilling holes in concrete.

Features of installation of the structure

In order to lay a reinforced aerated concrete slab, you will need to use lifting equipment and the help of two installers and a crane operator.

Advice. In order for the surface to be of the highest quality, the supporting walls should first be leveled.

The process of laying products such as aerated concrete floor slabs contains the following features and nuances:

  1. When constructing interior partitions, they should be made 10 mm below the floor level;

Advice. This requirement must be fulfilled without fail.
Otherwise, the aerated concrete floor slabs will be subject to additional loads, which will lead to the appearance of cracks on the surface.
Some practices suggest the possibility of filing the partition on site, but this process will greatly complicate the installation process.

  1. The depth of support of the slabs on the load-bearing structural elements should be 1.25 mm or more;
  2. Laying of products is carried out with soft slings;
  3. If slabs with a tongue-and-groove fastening system are used, then upon completion of installation work the ceiling should be strengthened with a clamp, which will ensure a quality fit;
  4. Before laying the panels, the walls are pre-treated with a solution;
  5. In those areas of the structure where the presence of ceilings is not planned (stairs, rising communications, etc.), metal structures are installed;
  6. The seams formed between units of material are treated with concrete mortar;

The photo shows the process of concreting seams

  1. Along the perimeter of the structure, a reinforcement frame made of steel rod is connected in two levels;
  2. Formwork blocks are installed on concrete mortar;
  3. Formed as a result.

The result of such construction work will be a floor assembled from slabs forming a monolith with a uniform load distribution over the entire surface.

The price of flooring for a building made from aerated concrete slabs directly depends not only on the quality of the building material you choose, but also on the area of ​​the interfloor space and, of course, on the number of floors.

Ceilings for walls made of aerated concrete

Many people who have decided to build a house from aerated concrete blocks are concerned about the question of whether it is possible to lay floor slabs on aerated concrete?

Of course it is possible, only this process must comply with some conditions:

  • The thickness of walls made of cellular material must be at least 30 cm;
  • The support of the floor slab on aerated concrete should be 20 cm;
  • Along the entire perimeter of the walls of the building, a reinforced concrete belt must be constructed with a thickness commensurate with the thickness of the wall and a height of 25 cm;
  • The concrete belt must be reinforced.

Note!
This belt will allow you to correctly distribute the load exerted on floor slabs for aerated concrete, excluding point pressure on cellular blocks, which can result in deformation or destruction of the structure.

Finally

The ceiling, created from aerated concrete blocks, is a high-quality, reliable and durable structure. Aerated concrete is a lightweight material, so laying such a floor will not cause any difficulties. A reliable system for connecting blocks will increase and reduce the cost of finishing the ceiling surface, because The ceilings will be perfectly even.

And the video in this article will allow you to learn even more about how you can create floors from such a modern building material as aerated concrete.