Screed blocks from armored belt. Technology for creating armored belts on aerated concrete walls

Reinforced belt (armopoyas) - a reinforced concrete layer that is laid along the entire perimeter of the building. Armo-belt device with reinforcement and formwork increases the strength of load-bearing walls. This allows you to increase the strength and operational life of the structure. As practice shows, it is practically not subject to destruction even during subsidence of the soil or its shift. Armo-belt is also called seismic belt, reinforced concrete or unloading belt.

Why do you need an armored belt and a support frame

Building materials that are used for construction today have many advantages. However, most of them are characterized by insufficient rigidity and negatively perceive point forces.

In order to strengthen buildings made of brick or block materials, you need to know how to make formwork for an armored belt. Most often they resort to this during:

• shallow foundation structures;
• building a house on a plot with a slope;
• the proximity of the building to the reservoir;
• construction work on subsiding soil;
• construction of structures in seismically active zones.

The production of armored belts is carried out using several technologies: with disposable or removable formwork. Using ready-made fixed formwork blocks, you can quickly assemble a form for pouring concrete. Usually, in this case, blocks of expanded polystyrene are used - this way the formation of cold bridges is excluded.

Disposable and removable formwork can be done by hand. In the latter case, boards are used instead of ready-made blocks - this significantly reduces the cost of construction.

When is an armo-belt device necessary?

Soil shrinkage, wind loads and temperature fluctuations have a significant impact on the condition of the building. In order to make the building invulnerable to negative environmental factors, additional reinforcement will be needed. The seismic belt demonstrates maximum efficiency when building from gas silicate blocks (they are especially vulnerable to bending deformations.)

Armopoyas takes the main load on itself and contributes to an increase in the life of the structure. You need to use it:

• to evenly distribute the load on the building frame;
• when attaching the timber to the tops of the walls (the armored belt under the roof prevents the occurrence of excessive vertical loads);
• in order to correct mistakes made during laying;
• fixing a closed line, which is the basis for fixing the roof;
• providing high rigidity of the building.

The formwork for the armored belt also simplifies the process of pouring the foundation, walls, ceilings and other reinforced concrete structures. This system consists of a deck in contact with concrete, scaffolding and fasteners. Formwork is made of various materials:

• rolled, sheet steel;
• aluminum;
• boards, chipboard or plywood;
• plastic and its varieties.

What is the device of a reinforced belt

For a durable and reliable foundation, a lot of building materials are required. To avoid wasted expenses, experts recommend using a special armored belt calculator. You can find it on thematic sites - you just need to enter the basic parameters of the future foundation. The exact calculation of the armored belt is carried out based on the following data:

• tape length;
• tape width;
• desired foundation height;
• number of reinforcement threads;
• rebar diameter.

In modern construction, several reinforced belts are used. Each design of the armored belt, presented below, differs in the laying method and purpose. It is recommended to take into account the features of each of them for durable and competent construction:

• the first belt (grillage) is poured simultaneously with the strip foundation (concrete is poured into the trench by 300-400 mm) This is the key to the strength of external and capital internal walls;
• the second belt is laid on top of foundation blocks 200-400 mm high. Since it distributes the load on the foundation from the whole house, it is important to use reinforcement in the construction of each floor of multi-storey buildings;

• the third belt is designed to tie the walls and prevent future cracks. The armo-belt formwork device contributes to the uniform distribution of the load over window and door openings - it is laid on top of silicate blocks, under floor slabs;
• the armored belt under the roof takes on the entire load from the roof, the negative impact of strong winds and precipitation. It is carried out under the roof beams to strengthen the beam with anchor bolts.

How is the formwork for the armored belt

If you have chosen a more economical formwork method, it is important to install wooden panels in such a way that their position is not disturbed due to concrete pressure.

It is necessary to pass the anchors through the tree and install plugs on them using electric welding. Filling the interfloor armored belt is much faster:

• a screw 6 x 100 mm is attached to the bottom of the wooden shield;
• the distance between the screws should be about 700 mm;
• the shield is applied to the wall, a hole is drilled into which the screw is inserted;
• the recommended hole diameter is 6 mm.

The upper part of the formwork is also installed quite simply, according to a similar scheme, but a self-tapping screw is used instead of a screw. A hole is drilled in the brick or seam of the front masonry, into which reinforcement is driven in. Next, the self-tapping screw and fittings are pulled together with a knitting wire. It is necessary to adhere to the distance between the fasteners within 1-1.5 m. After the armored belt has hardened, the formwork can be removed. In the warm season, concrete sets in a day, in winter and autumn it will take more than two days.

It is important to control the level of the upper edge of the formwork - the differences should not exceed 1 cm. From this point of view, it is more rational to use a formwork of a fixed or combined type.

If you plan to further insulate the facade with foam plastic, a fixed formwork made of polystyrene blocks will become an element of the insulating layer. The only difference between the manufacturing technology of such formwork and removable formwork is in the connection of several parts for the floor armored belt. They should be fastened in such a way that during the hardening of the concrete, the solution does not move them apart.

How to properly fill in the armored belt

The high-quality device of the armo-belt consists in the competent laying of the reinforcing cage and pouring the forms with concrete. The most reliable is a frame made of metal rods (section 8-10 mm), fastened together with wire and horizontally laid in a mold. It is important to fasten the frame with a ring of knitting wire every 50 cm.

In order for the device of the reinforced belt to be as effective as possible, it is necessary to pour the solution so that the entire reinforcement cage is completely immersed in concrete. After pouring, make sure that the metal rods do not come into contact with the formwork: in order to adjust the height, brick fragments or other building material can be placed under the frame. At the final stage, it remains to pour concrete into molds and compact. After he completely "grabs", the forms are disassembled.

To strengthen the foundation and load-bearing structures of the future building, it is not necessary to have special skills. Using the following recommendations, you will learn how to properly fill in the armored belt so that the building is stable and durable, despite any external negative factors.

• under the floor beams it will last much longer if the walls are first leveled and cleaned of the remnants of the concrete solution;
• when choosing a material for fixing wooden shields, it is important to use self-tapping screws. They, unlike nails, are quickly removed with a cordless screwdriver;
• fiberglass reinforcement is resistant to low temperatures, but at extremely high temperatures the material begins to melt - this must be taken into account when choosing building materials;
• when reinforcing brickwork, ensure complete sealing of the joints. Fill the resulting gaps with a thick mortar with the addition of mounting foam or a special film;
• it is especially important to carry out the formwork in one step (more information on how to properly reinforce the strip foundation with your own hands can be found on this site);
• the main condition for reinforcement is a closed structure. Fortification should not be interrupted in any case;

• there are several conflicting opinions about whether foundation reinforcement can be welded. Experts say that the strength and rigidity at the welding joint are somewhat reduced.
• it is preferable to use high-quality concrete grade not less than M200;
• correct reinforcement of corners implies the fastening of reinforcement only using bent elements;
• in a hot period, you need to abundantly moisten the surfaces to be treated with water - this way you will prevent the appearance of cracks in the solidified solution.

If the house is built from block materials, then it is often exposed to natural influences. In particular, the building settles, the soil around it swells, etc. Well, strong winds and long downpours adversely affect the integrity of the structure. To protect against such influences, an armored belt is created on top of the walls with their own hands from concrete. In our article, I would like to talk about the manufacturing technology of the reinforcing belt, as well as its purpose.

Purpose and design of the armored belt

Reinforcing belt (seismic belt) - increases the reliability of the house and prevents cracks. They, in turn, are formed during the movement of the soil or the impact of precipitation on it. Such an element helps to evenly distribute the loads from heavy structures located above it.

For example, concrete floors are laid just on top of the reinforcing belt. Many are mistaken in thinking that wood floors do not need. This is far from the case - this element is needed to close the walls of any house. In this case, the type of overlap does not play a role. After all, as you know, houses are built for many centuries, and not for a short period.

Armo-belt device: stages of work and their features

In the construction of private residential buildings from block materials (brick, aerated concrete and others), for additional protection against movements and deformations of walls and load-bearing structures, an armored belt is always provided. This reinforced concrete structure, arranged along the entire perimeter of the building, reduces and redistributes external and internal stresses on the walls and foundation, resulting from seismic activity and ground movements, wind exposure, and stresses from the internal structures of the house.

Due to the likely changes in the soil and the features of the internal structure of the building, the walls in different parts of the house can receive different levels of loads that cause compression and torsion of the material. If the load reaches critical values, cracks form.

For low one-story houses, the foundation can cope with the role of the armo-belt. But with a significant height of the walls (two or more floors), critical loads are created in the upper part, for the uniform redistribution of which a special additional structure is needed - a concrete belt with metal reinforcement. Its presence increases wind protection for the walls of the house and bursting loads from the mass of the upper floor and roof.

Expert opinion

Sergey Yurievich

The practice existing in construction proves that the width of the armored belt is quite sufficient if it corresponds to the thickness of the wall. The height can vary in the range of 150-300 millimeters. For the construction, profiled metal can be used (corner, single-tee or double-tee beams, fittings). Note that the armo-belt itself in such a house or in an aerated concrete extension performs the functions of an I-beam, which is most resistant to stress.

Armor belt under Mauerlat

The functions of the armored belt under the Mauerlat are the same - ensuring the strength and reliability of the wall structure. Features of the design in its dimensions. As a rule, the minimum section is 250 x 250 mm, and the height should not exceed the width of the wall. The main requirement is the continuity of the structure and the same strength along the entire perimeter of the walls of the house: at a minimum, the armored belt must be monolithic. In order to achieve continuity, it is recommended to use concrete of the same brand for pouring (at least M250).

Mounting the Mauerlat to the armored belt

Expert opinion

Sergey Yurievich

Construction of houses, outbuildings, terraces and verandas.

The easiest way to attach the Mauerlat to the armored belt is with threaded studs.

The diameter of the studs should be 10-14 mm. At the base, crossbars should be welded.

Using raw concrete to fill the armored belt under the Mauerlat, you should take care of the placement of the studs in advance:

• they should be rolled in advance to the reinforcing cage placed inside the concrete;
• the distance between the studs should be the same;
• so that the concrete does not contaminate the threads in the outer part of the studs, they must be covered with cellophane and wrapped with wire;
• that part of the studs that will be inside the concrete should be protected from corrosion - paint is quite suitable for this (oil or nitro-based - it does not matter, you can also use primer).

The outer part (length) of the studs should be sufficient so that, in addition to the Mauerlat itself, two nuts and a washer can be screwed to them. Ideally, the attachment points of the Mauerlat to the armored belt should be located as accurately as possible in the middle between the truss structures. At the very least, the rafter legs should not coincide with the studs, otherwise you will get additional problems when installing the roof, so you should pay attention to the accuracy of marking and installation in advance.

Armopoyas for floor slabs

The presence of heavy floor slabs creates increased loads on the walls. To prevent wall materials from deforming under their weight, an armored belt is used at the height of the mating floors. Such a reinforced concrete tape should be built under all floors around the entire perimeter of the house. The distance from the plates to the armored belt should not exceed the width of one or two bricks during the construction of brick buildings and other objects made of stone materials or with cinder-filled walls (ideally - 10-15 cm).

Expert opinion

Sergey Yurievich

Construction of houses, outbuildings, terraces and verandas.

Do not forget that inside the armored belt under the floor slabs there must be a reinforcing cage. We will dwell on its features a little later. It is important that there are no voids in the armored belt under the floor slabs.

Brick armored belt (video)

Armopoyas made of bricks is an ordinary brickwork, reinforced with reinforcing mesh. Sometimes, to enhance strength, the brick is placed not horizontally, but vertically on the ends. However, many craftsmen recommend making a brick armo-belt only in conjunction with a full-fledged reinforcement of the wall with a reinforced concrete belt.

Formwork for armored belt

For the formwork device, which is mandatory when pouring a concrete armored belt, you can use:

• factory structures (offered for rent by many construction companies);
• polystyrene (foam of fine porosity);
• shield prefabricated formwork from boards, moisture-resistant plywood or OSB.

Given that the casting of the armored belt must be uniform and carried out simultaneously along the entire perimeter of the house wall structure, the formwork must also be mounted in advance on the entire object.

Expert opinion

Sergey Yurievich

Construction of houses, outbuildings, terraces and verandas.

It should be noted that the upper part of the formwork must provide an ideally horizontal position for the armored belt (this is especially important when it is necessary to correct the flaws in the masonry of the walls). Therefore, when constructing formwork for concreting the armored belt, a water level should be used.

Armopoyas under the roof

The functions of the armored belt under the roof can be formulated in the following paragraphs:

• ensuring strict geometry of the building box during shrinkage of the wall structure from seasonal soil changes;
• the rigidity and stability of the building;
• dispersal and uniform distribution of loads from the roof to the box of the house.

The armored belt under the roof also performs a function that provides the possibility of a strong fastening of the mauelat and the truss system, the installation of a ceiling (including reinforced concrete slabs) between the upper floor and the attic of the house.

Reinforcement for armored belt

The reinforcing mesh (framework) for the armored belt is necessary to strengthen and give greater strength to the concrete structure. May be square or rectangular in cross section. It consists of four working longitudinal rods and intermediate jumpers.

For fastening the reinforcement to each other, electric welding or knitting wire is used. The optimal diameter of the reinforcement is 10-12 mm. To increase rigidity, a separate rod is laid inside the reinforcing cage. Longitudinal jumpers are fastened together every 200-400 mm. To stiffen the corners of the armo-belt, an additional bent rod is inserted to each side of the corner of the wall at a distance of approximately 1500 mm.

Composition of concrete for armored belt

As we said above, concrete grade M250 and higher is suitable for the armored belt. The pouring of the structure must be carried out continuously, therefore it is more advisable to pre-order the delivery of the required amount by mixers at the nearest concrete plant.

Otherwise, you will need:

• two concrete mixers;
• sand;
• cement (recommended not lower than grade M400);
• gravel or crushed stone;
• water.

Two concrete mixers will be needed to ensure the continuity of pouring the armored belt with fresh concrete. A specialist in the preparation of the concrete mixture and a number of auxiliary workers will also be needed to load the concrete mixers and carry the finished concrete to the installation site of the armored belt.

Video instruction on the construction of an armored belt with your own hands

A reinforced belt, also known as a monolithic belt or seismic belt, is a special design designed to solve two problems. First, distribute the load from what will be on top to what will be below. And, secondly, to connect the entire plane on which it is located into a single whole. Both a monolithic, concrete armored belt and a reinforced brick one cope with the distribution of the load. Both of them do an excellent job of distributing the load, say, from floor slabs to walls. If the task is also to tie the walls into a single whole, for example, from the bursting load of the roof rafters on the walls of the house, then a concrete reinforced belt is needed here.

How to make an armored belt with your own hands

We figured out what the armored belt is, let's find out how to make it with our own hands. With a brick armored belt, everything is simple. Usually, it is made of solid red brick of the minimum grade M100 in several rows with reinforcement with masonry mesh. You can also reinforce the masonry with reinforcement with a diameter of 6-8 mm. With a concrete, monolithic armored belt, the situation is more complicated.

First you need to set the formwork. It can be either a wooden formwork, or a “tray” or fixed formwork, if we are talking about an armored belt on aerated concrete or foam concrete blocks. You can use factory U-blocks or custom made trays. To do this, it is not necessary to cut a U-block from a conventional gas block. It is enough to make a laying of a thin gas block from the outside and inside. The space between these blocks can be insulated with extruded polystyrene.

After you have made the formwork, a reinforcement frame is placed inside the tray.

Sufficient reinforcement for an armored belt measuring 200 by 200 mm is a frame of 4 threads of reinforcement with a diameter of 12 mm (two at the top and bottom), fastened with transverse clamps with a diameter of 6-8 mm every 30-50 cm.

The standard reinforcement overlap should be 30-40 diameters. That is, if you put 12 mm reinforcement, then increasing it, you need to overlap by about 40 cm.

In the corners, reinforcement is necessary bend so that the corner is connected by solid reinforcement.

It is advisable to put the reinforcement frame on plastic clamps for the thickness of the concrete protective layer. And put the clamps on the vertical clamps. If there are no factory fixatives for the protective layer, you can use pieces of stone, brick, etc.

Studs for Mauerlat or pieces of reinforcement are attached to the reinforcing cage for subsequent fixation of floor slabs.

Now you can proceed directly to pouring the armored belt with concrete.

If you will pour purchased concrete, choose the brand M200-M250. Such a brand of strength is enough for private construction.

If you plan to prepare concrete for pouring the armored belt yourself, then use the universal recipe for the proportions of concrete for the armored belt: 1 part cement grade 500, 2 parts sand, 4 parts crushed stone.

You can also use one of ours to calculate the composition of concrete. Do not forget to add a plasticizer for concrete to the batch. This will make the filling more convenient for you, and the resulting armored belt will be more durable.

After pouring, cover the armored belt with a film to avoid sudden drying. For the same purpose, wet the concrete for the first 2-3 days.

Armopoyas will be ready for loading in a week. Full maturation of concrete will be completed 28 days after pouring.

The most frequent questions on the topic of the reinforced belt.

In what cases is an armored belt needed?

A monolithic reinforced concrete belt is required:

• on block foundation
• on walls made of aerated concrete, foam blocks, etc. under hollow-core slabs and wooden floor beams (to prevent punching). Here the armored belt can be brick
• under the Mauerlat on the roof, the design of which assumes a spacer load on this very Mauerlat

Is it possible to fill in the armored belt in winter, in frost?

Filling the armored belt in winter is a dubious occupation. However, if you really need to pour it in the cold season, take all measures to protect the concrete. Add special antifreeze additives to concrete. Use as little water as possible to mix concrete. After pouring, be sure to cover the armored belt to protect from the cold. For example, sawdust. In sub-zero temperatures, use a special heating cable. It is sold in any building supermarket.

What is the minimum thickness, height, width, size of the armored belt?

The minimum size of the armored belt is 150 by 150 mm. But not less than the width of the support of the slabs or floor beams.

Armo-belt freezes, what to do?

If you or your employees forgot to insulate the armored belt before pouring, then it will have to be insulated now. They insulate the armored belt from the outside.

Condensation on the armored belt. The armored belt is sweating. What to do?

Insulate. Other options: increase the temperature in the room, reduce the humidity of the room.

Is it possible to fill in the armo-belt in parts?

Can. To do this, make a bevel at the junction. And the concrete doesn't have to be smooth.

Video on the topic of reinforced belt

Remove the steel hoops from the wooden barrel and it will fall apart. Remove the reinforced belt from the house and the building will not stand for long. This is a simplified, but very clear explanation of the need to strengthen the walls. Anyone who is going to build a solid house will benefit from information about the purpose, types and arrangement of armored belts.

What is this design and what functions does it perform? Armopoyas - a tape made of monolithic reinforced concrete, which is laid on several levels of a building under construction.

The reinforced belt is poured in the foundation, under the floor slabs and under the mauerlats (rafter support beams).

This amplification method performs four important functions:

1. Increases the spatial rigidity of the building.
2. Protects the foundation and walls from cracks caused by uneven settlement and frost heaving of the soil.
3. Does not allow heavy floor slabs to push through fragile gas and foam concrete.
4. Reliably connects the roof truss system with walls made of lightweight blocks.

The main material for increasing the rigidity of the walls was and remains reinforced concrete. For small outbuildings, you can use a less powerful brick armored belt. It consists of 4-5 rows of brickwork, the width of which is equal to the width of the bearing wall. In the seam of each row, a grid with a cell of 30-40 mm made of steel wire with a diameter of 4-5 mm is laid on the solution.

In what cases is an armored belt needed?

for walls

Strengthening the walls with a reinforced belt is not always required. Therefore, there is no need to waste money on its device in the following cases:

• under the sole of the foundation lies a solid soil (rocky, coarse or coarse sand, not saturated with water);
• the walls are built of brick;
• a one-story house is being built, which is covered with wooden beams, and not reinforced concrete panels.

If weak soils (pulverized sand, loam, clay, loess, peat) lie on the site, then the answer to the question of whether a reinforcing belt is needed is obvious. You can not do without it in the case when the walls are built from expanded clay concrete or cellular blocks (foam or aerated concrete).

These are fragile materials. They do not withstand ground movements and point loads from interfloor floor slabs. The armored belt eliminates the risk of wall deformation and evenly distributes the load from the plates to the blocks.

For (the wall thickness is not less than 30 cm, and the strength grade is not lower than B2.5), the armored belt is not needed.

For Mauerlat

The wooden beam on which the rafters rest is called the Mauerlat. She cannot push through the foam block, so it may seem to someone that an armored belt is not needed under her. However, the correct answer to this question depends on the material from which the house is built. Mauerlat fastening without armored belt is allowed for brick walls. They securely hold the anchors with which the Mauerlat is attached to them.

If we are dealing with light blocks, then the armored belt will have to be poured. B, and anchor fastenings cannot be securely fixed. Therefore, a very strong wind can tear off the Mauerlat from the wall along with the roof.

For foundation

Here the approach to the amplification problem does not change. If the foundation will be assembled from FBS blocks, then the armored belt is definitely necessary. Moreover, it must be done at two levels: at the level of the sole (base) of the foundation and at its upper cut. This solution will protect the structure from intense loads that occur during the rise and settlement of the soil.

For reinforced concrete strip foundations, reinforcement with a reinforced belt is also required, at least at the level of the sole. Rubble concrete is an economical, but not resistant to soil movement material, so it needs reinforcement. But the monolithic “tape” does not need an armored belt, since its basis is a steel three-dimensional frame.

There is no need for a device of this design for a solid foundation slab, which is poured under buildings on soft soils.

Under what types of interfloor ceilings do you need an armored belt?

Under the panels, which are based on expanded clay concrete blocks, gas or foam concrete, a reinforced belt must be made without fail.

Under a monolithic reinforced concrete floor, it can not be poured, since it evenly transfers the load to the walls and firmly binds them into a single spatial structure.

An armored belt for a wooden floor, which is based on light blocks (aerated concrete, expanded clay, foam concrete) is not required. In this case, under the beams, it will be enough to fill in the support pads of concrete 4-6 cm thick to eliminate the risk of punching blocks.

Someone may object to us, pointing to a number of cases when the armored belt is poured under the wooden floor of the floor. However, in this case, reinforcement is required not because the wooden beams on concrete pads are able to push through the masonry, but to increase the spatial rigidity of the building frame.

How to make an armored belt?

The technology for constructing a reinforced stiffening belt is no different from the method of pouring a monolithic foundation.

In general, it consists of three operations:

• Reinforcing cage manufacturing;
• Formwork installation;
• Pouring concrete.

Certain subtleties and nuances in the work appear depending on the location of the armored belt.

Reinforced belt under the foundation

Answering the question of how to make a reinforced belt under the foundation (level 1), let's say that its width should be 30-40 cm more than the width of the supporting part of the main concrete "tape". This will significantly reduce the pressure of the building on the ground. Depending on the number of storeys of the house, the thickness of such a stiffening belt can be from 40 to 50 cm.

The reinforced belt of the first level is made under all the load-bearing walls of the building, and not just under the outer ones. The frame for it is made by knitting reinforcing clamps. Welding is used only for preliminary connection (tack) of the main reinforcement into a common spatial structure.

Armoias of the second level (on the foundation)

This design is essentially a continuation of the strip foundation (rubber concrete, block). To reinforce it, it is enough to use 4 rods with a diameter of 14-18 mm, connecting them with clamps with a diameter of 6-8 mm.

If the main foundation is, then there are no problems with installing formwork under the armored belt. To do this, you need to leave free space in it (20-30 cm) for installing the reinforcing cage, taking into account the protective layer of concrete (3-4 cm).

With the situation is more complicated, since the formwork is not set for them. In this case, wooden spacers should be used, which support the formwork panels from below. Before installation on the shields, trimmings of boards are stuffed, which protrude beyond the dimensions of the formwork by 20-30 cm and do not allow the structure to move to the right or left. To connect the formwork panels, short cross bars are nailed along the top of the boards.

You can simplify the mounting system by using threaded studs. They are placed in pairs in formwork panels at a distance of 50-60 cm. By tightening the studs with nuts, we get a sufficiently strong and stable structure for pouring concrete without wooden supports and crossbars.

This system is also suitable for formwork, which requires an armored belt for floor slabs.

Studs that will be filled with concrete should be wrapped in glassine or a little machine oil should be applied to them. This will make it easier to remove them from the concrete after it has hardened.

Armopoyas for floor slabs

Ideally, its width should be equal to the width of the wall. This can be done in the case when the facade will be completely lined with slab insulation. If it is decided to use only plaster mortar for decoration, then the width of the armored belt will have to be reduced by 4-5 centimeters in order to leave room for foam or mineral wool. Otherwise, a through cold bridge of very solid dimensions will appear in the zone of laying the stiffening belt.

When making an armored belt on aerated concrete, you can use another solution. It consists in installing two thin blocks along the edges of the masonry. A steel frame is placed in the space between them and concrete is poured. The blocks act as formwork and insulate the belt.

If the thickness of the aerated concrete wall is 40 cm, then partition blocks 10 cm thick can be used for this purpose.

With a smaller wall thickness, you can cut out a cavity for an armored belt in a standard masonry block with your own hands or buy a ready-made aerated concrete U-block.

Reinforced belt under Mauerlat

The main feature that distinguishes the armo-belt under the Mauerlat from other types of reinforcement is the presence of anchor studs in it. With their help, the beam is firmly fixed to the wall without the risk of tearing or shifting under the action of wind loads.

The width and height of the reinforcing cage must be such that, after the structure is monolithic, at least 3-4 cm of the concrete protective layer remains on all sides between the metal and the outer surface of the belt.