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How to make formwork for an armored belt. Reinforced frame. Installation and materials. Stages of construction of a reinforced belt. How to make a reinforced belt How best to fill an armored belt

In any type of construction it is necessary to form additional reinforcement and rigidity of structures. An excellent example is a unifying reinforcing belt based on concrete. When installing it, separate construction tools and a detailed arrangement of reinforcement will be required. It is also important to take into account the specifics load-bearing walls and floors that will bear the load from this type of structure.

When choosing the location features of the armored belt, you can use different kinds reinforcement, depending on the type of structure and their weight. Today this can be reinforcement made of metal alloys, as well as fiberglass reinforcement. In the latter case, the weight of structures will be reduced and the process of forming reinforcement will be simplified.

Required tools and materials

Before starting work and forming the armored belt, it will be important to study in detail the necessary materials and tools. This will eliminate wastage of time and create a reliable and durable design.

Selection and list of materials:

• concrete, cement and sand, coarse aggregate (the class and grade of the mixture is taken into account, taking into account the load on the structure);
• reinforcement, choice in favor of steel reinforcement or fiberglass (ease of installation and lightness of the frame);
• elements for decorating external and inner surface armored belt ( wooden materials. Artificial stone, plaster or u-blocks);
• lumber, for making fastenings and supports, formwork formation;
• plastic clamps to form a protective layer of concrete from the internal metal frame;
• water, for soaking and adhesion to the underlying stone or concrete base;
• nails and self-tapping screws for securing the formwork.

It will also be important to decide on the entire list construction tools, namely:

• measuring instruments (tape tape, corner, level, level; pencil and marker);
• hammer drill (drills for wood and concrete);
• hammer and sledgehammer;
• hand saw (for wood and metal), for separating materials;
• grinder and electric saw (taking into account the large amount of work);
• strands and temporary fastenings when assembling formwork.

This list of tools can be supplemented, taking into account the specifics of reinforcement and the complexity of the project being formed. But when doing more simple designs this will be quite enough.

In this case, it is important to have an additional kit Supplies. And also, do not take the volume of consumables exactly according to the size of the armored belt being formed, but order from stocks of 15-25%.

What is it needed for

Getting quality constructive solutions, will be necessary in case of adding additional rigidity to the building. And also this monolithic design option allows you to more evenly distribute the load from higher-lying floors or rafter systems.

The created structure allows you to obtain a solid foundation for placing the next floor and create additional rigidity for all walls of the building. This is especially true when there are large window openings, and load-bearing walls and individual elements are located pointwise along the entire perimeter of the building. In the case of large openings, monolithic belt performs the supplemented function of jumpers, allowing you to combine the entire building structure on one level. This will give greater rigidity to all external walls and internal partitions.

Also, an armored belt can be erected, in case pile foundation, performing similar functions if it is necessary to distribute the load from the future overlap of the first and subsequent floors.

Before installing the entire structure, it is necessary to understand that the implementation of reinforced outlets or the presence of embedded parts will connect the structures below and the proposed floors above. Therefore, when concreting, the reinforcement is laid metal elements, which perform this function.

This video will tell you in detail about the purpose of the armored belt.

Where is it installed?

The implementation of an armored belt will require a clear understanding of the location of this type of structure. This can be a solution that only tightens the external walls of the building, or it can act as a monolithic solution for the entire complex of walls. In this case, three are formed common element, namely:

1. reinforcement;
2. formwork;
3. concreting, along the entire perimeter of the walls and at one level.

It is worth understanding that the implementation of an armored belt will allow, at a certain stage, to evenly distribute the loads from the structures located above. Therefore, it is performed in separate areas of the building, namely:

• between the foundations and the ceiling of the first floor;
• ceilings and walls of the first floor and all subsequent ones;
• for the reconstruction of some building elements and strengthening existing walls(at the level of existing damage) by strengthening structures;
• between the load-bearing walls and the rafter system.

This together allows you to remove excess load from load-bearing structures and evenly transfer weight into door and window openings, where there is no significant amount building materials. Or vice versa, in the case of lungs building structures And complex options glazing to reduce the load on window and door structures.

The construction must be carried out at the same level, with a detailed calculation of the amount of reinforcement and the area of ​​​​combination of load-bearing elements. If we are talking about low-rise construction, it must be a frame made of reinforcement with a cross-section of 12 mm and a spatial reinforcement grid must be formed. This will be a solution with the presence of two rows of reinforcement in the lower chord and, accordingly, in the upper one. The volume by weight should not exceed 25-35% of the total amount of materials.

This video will tell you under what walls and partitions the armored belt is installed

Installation features

In the process of building structures, it is important to determine the placement of window and door openings. This will make it possible to place additional racks and supports under the formwork.

It is also worth worrying about the quality of fastening of the formwork. This is done on the underlying supporting structures by drilling screws and installing spacers. The resulting solutions in the case of placement of reinforcement are best carried out in separate sections, combining them at corners and places of wall joints. Above the windows and doorways It is worth strengthening the frame by adding additional reinforcement. Similar decisions must be made at the corners of joining and abutting walls.

In the process of accepting concrete, it is important to completely fill the entire volume without cutting off individual elements. This will provide a working structure to unite the entire building. At high temperatures, it will be important to water the concrete, not allowing it to dry out quickly, until it reaches its design strength within 7 days.

Formwork

When choosing formwork, you should consider the permanent use of the structure or a one-time solution. If this permanent work, Related monolithic construction, then you should worry about availability of light multifunctional formwork from panels. But if we are talking about a one-time solution, then the usual lumber will be enough.

The choice should be towards the board with minimum thickness 4-5 cm. The width of the lumber is formed taking into account the future armored belt. These can be boards of 100 and 150 mm knocked together or alternating lumber with a width of 100 and 200 mm. The resulting shields must be placed around the entire perimeter of the walls and load-bearing structures. Above the door and window openings, additional support reinforcements are installed.

During the formwork process, it is important to place not only external fastenings, but also to tighten the external panels with wire or using boards. This will avoid displacement wooden shields out.

Do-it-yourself armored belt. Step-by-step instruction.

In the process of forming an armored belt, it is important to perform a certain sequence of work, namely:

• cleaning load-bearing structures and walls from dirt and dust;
• we lay metal outlets (reinforcement or metal corners);
• installation of wooden panels, support elements over window and door openings;
• installation of a metal frame, with clamps, for a protective layer of concrete;
• we set the notches and the level to which concrete will be poured into the formwork;
• formation working area and platforms for receiving concrete mixture;
• installation of scaffolding and ladders, access to each section of the structure after concreting, to control the monolithic belt.

Before you start receiving the concrete mixture, it is worth checking the reliability of the formwork being installed. The panels should fit snugly against the walls and be firmly fastened to each other. If necessary, provide additional fastening by installing supports made of boards along the perimeter of the formwork.

It is also important to determine the correct level to which the concrete will be poured and subsequently the entire building mixture will be leveled.

In this video you can learn in detail about the technology of installing an armored belt with your own hands.

Before starting work, it is important to calculate the reinforcement cross-section in detail. Select the height of the future armored belt and allow a detailed study of the joining points of each of the lower elements. This will make it possible to obtain a uniformly loaded structure and foundation for placing subsequent building elements.

It is also important to ensure high-quality combination of load-bearing walls and armored belts, due to additional metal parts and fastenings inside the frame. This can be done by drilling reinforcement into the walls and attaching metal embedded parts.

Formwork-for-armour-belt.

1. Reinforcing belt and their types.
2. First armored belt
3. Third armored belt

During any construction, quite great importance has not only the correct construction of the walls of the building, but also strengthening them with the help of a made armored belt. Thanks to such a reinforcing belt, any constructed building increases its strength several times, and has a uniform distribution of load on . Therefore, at the stage of creating a project for a future construction, great importance must be given to the question of how to make an armored belt with your own hands.

Reinforcing belt and their types.

There are several types of reinforcing belts in construction.

It should be noted! When constructing an armored belt as Quite often, ribbed metal rods (reinforcement) with a cross-section of 10 or 15 mm, or a metal mesh made from the same rods are used. When constructing a frame from reinforcement for an armored belt, it is not recommended to weld the joints of the reinforcing mesh or rods, since the strength of the metal will significantly decrease, which means the strength of the armored belt will also decrease. Therefore, metal reinforcement should be connected to each other only using binding wire.

First-armobelt

First armored belt

The construction of any building always begins with laying the foundation. And it is clear that the more massive the building is constructed, the stronger the foundation is built for it, so we will look at how to make an armored belt with your own hands and why it is needed below.

Construction of a foundation with a reinforcing belt

Second armored belt

When constructing a sufficiently strong foundation or constructing a one-story building, the second armored belt is more a convention than a necessity. The way he is more responsible for integrity external walls.

Laying-reinforcement-for-the-second-reinforcement belt

Before starting the construction of an armored belt on a foundation made of concrete blocks, it is first necessary to lay partitions 40 cm high in half a brick along the edge, between which a reinforcing mesh or metal reinforcement 15 mm in diameter is placed, after which concrete mortar is poured on top.

Laying concrete into the formwork for the second armored belt

Third armored belt

This reinforced belt is constructed before the construction of the ceiling and it performs no less important task than the grillage. Designed mainly for strengthening both internal and external walls that have doors and window openings, as well as to keep the entire structure intact.

A reinforced concrete belt is constructed around the perimeter of the building. The basis is a frame assembled from reinforcement. It's being flooded liquid solution concrete. And so that concrete mixture did not spread, the formwork is assembled under the armored belt. Let's figure out how to assemble this structure correctly.

Why do you need to build an armored belt?

In what cases is the installation of an armored belt necessary? The purpose of this structure is to strengthen buildings built from gas or foam concrete, brick and other materials that do not provide sufficiently high structural rigidity. The structure is necessary in the following cases:

• if the house is built on a shallow foundation;
• when constructing buildings on sites that have a significant slope;
• if there is a river or ravine at a short distance from the facility under construction;
• for certain soil characteristics at the construction site;
• during construction in seismically active areas.

The technology for building houses from block materials involves the construction of several armored belts, namely:

• the lowest reinforcing belt is poured into a trench dug under the foundation. The armored belt is installed around the perimeter and at the location of the load-bearing walls;
• the next reinforcing structure is located in the basement of the building, its main function is to distribute the load;

• another reinforcing belt is installed at the floor level between the first and second floors. Its functions are to tighten walls and redistribute the load over window and door openings;
• the upper belt is mounted at the level ceiling top floor to redistribute the loads exerted by the roof.

To build an armored belt with your own hands, you must first assemble the formwork. Let's look at how this structure is mounted.

Types of formwork for armored belts

The formwork for the armored belt can be mounted different ways. The main design options are removable and non-removable. In addition, can be used various materials for assembling molds for filling.

Fixed

The simplest installation option is installation without removable formwork. The disadvantage of this method is the increase in costs, since the molds used are used once and remain in the belt structure forever. For installation, ready-made polystyrene foam blocks are used; the owners just have to install them correctly.

Advice! The use of polystyrene foam blocks is additional insulation at home because they are naked reinforced concrete structures are bridges of cold.

The blocks are available in a wide range of sizes, so it is easy to purchase material for the construction of formwork for armored belts of any size. Assembling a structure from blocks is as simple as possible, since they have fastenings and are connected to each other according to the “groove-tenon” principle.

Removable

If you do not plan to purchase ready-made blocks for installing formwork, then you can assemble removable systems using boards. This is a removable option; the assembled formwork is disassembled after the solution has hardened and moved to another place.

The use of adjustable structures allows you to save on materials. This option is more labor-intensive, since you will have to install the forms yourself. Carrying out this work requires care and precision.

Installation of formwork

Let's figure out how to make formwork for an armored belt. We will consider the option of constructing removable formwork from boards. Installation of formwork for armored belt is carried out as follows:

• 20 mm wide boards are used for assembly;
• The height of the belt should be 30 cm;
• the width must be equal to the width of the main structure, that is, the width of the foundation or the width of the wall;
• The first formwork board is screwed around the perimeter of the part to be strengthened. Subsequent boards are installed on top, close to each other, the gap between the boards should be minimal. The boards are knocked together into panels using bars. It is better to fasten the structure with self-tapping screws, but you can also use nails;

• to give the shape the necessary rigidity, bars according outside stuffed every 0.7 meters. The bars are placed strictly vertically;
• To further strengthen the structure, wire ties are installed between the parallel panels. The ties should be placed in increments of 0.8-1.0 meters;

• The last stage is checking the quality of installation. It is necessary to make sure that the walls of the formwork are positioned strictly vertically, and that the structure itself is strong enough to withstand the pressure exerted by the concrete mixture;
• in addition, you need to make sure that there are no cracks, otherwise the solution will flow out through them. Wide cracks are filled with overhead slats, narrow cracks with tow.

Dismantling of formwork

Dismantling of wooden forms should begin after the concrete has hardened. There is no need to wait for the concrete to gain full strength. You can dismantle the forms as soon as the solution hardens on top.

Disassembly is not particularly difficult. First, remove the wire ties, then disassemble the structure into parts. After cleaning and drying, the boards can be used to assemble formwork in another area.

So, in some cases, installation of an armored belt is mandatory. This is a reinforcing structure that increases the reliability of the building. To construct it, you must first assemble the formwork. It can be quickly assembled from ready-made polystyrene foam blocks or knocked together yourself from boards and wooden blocks.

04.06.2018

Question: What is a reinforced reinforcing belt and its structure?

Nowadays everything construction technologies primarily aimed at ensuring maximum stability of the buildings being built and increasing the service life. After all, construction sites are exposed to enormous impacts natural factors. Therefore, building structures must be properly strengthened. One of these fortifications is the armored belt.

Armopoyas - what is it?

An armored belt is a monolithic reinforced concrete contour that is placed on all the main walls of the building, connecting them into a single frame.

The main task of the armored belt is to distribute a uniform load on the load-bearing walls of the building and on the foundation.

The reinforced belt is laid at several levels of the building under construction, in the foundation, under the floor slabs and under the mauerlat (beam on which the roof rafters rest).

What functions does the armored belt perform?

There are several reasons that determine the need for an armored belt when building a house:

• Increased spatial rigidity - the reinforced belt connects the building structure into one whole and serves as a rigid frame, thanks to which the building receives additional resistance to negative factors, wind loads, ground movements, and earthquakes;
• Uniform distribution of loads - a monolithic belt protects the foundation and walls from cracks and prevents heavy attic and interfloor slabs from pushing through fragile aerated concrete and foam concrete;
• Implementation of openings - a reinforced concrete belt allows you to make openings of any width in the walls for doors and windows without the use of special jumpers;
• The connection between the roof truss system and the walls - a monolithic reinforced belt provides rigid and reliable fastening for installation of the roof truss system, especially important when the walls of the building are made of light blocks.

Is an armored belt always necessary?

Strengthening your home is not always necessary. Let's consider situations in which the construction of an armored belt can be neglected:

• the foundation is located on solid ground: rocky ground, coarse and coarse sand, soil not saturated with water;
• the walls of the house will be made of brick;
• the walls of the house will be built from wood concrete blocks with a thickness of at least 30 cm and a strength of at least B2.5;
• is being built cottage, the floors of which will be made of wooden beams, and not from concrete slabs.

If the soil on the site is weak and not very stable, for example, dusty sand, loess, clay, loam or peat, then the construction of an armored belt is mandatory.

The same is true if the walls of a house are built from light and fragile expanded clay concrete, foam concrete or aerated concrete blocks - the answer is obvious, an armored belt is needed! This is because these blocks are not designed for ground movements and point loads coming from the floor slabs.

Armored belt construction technology

Device technique monolithic armored belt similar to the technology of pouring a conventional monolithic foundation:

1. The reinforcement frame is knitted and installed;
2. Formwork is installed;
3. Concrete is poured.

Some additional nuances, subtleties and minor changes in technology depend on the location of the reinforced concrete belt.

Types of armored belt or location zone

Basic unloading armored belt or Base (1st level - under the foundation) - this structure bears a lot of effort from the entire mass of the building and the reaction of the soil. The base will be reinforced with a reinforcement cage, repeating the location main walls and concreted when forming a strip foundation.

Base armored belt (2nd level - above the foundation) - the width of this belt should correspond to the thickness of the walls and proportionally distribute the forces acting on the base.

Armobelt between floors for floor slabs - this solid reinforced concrete belt is located between top level walls of the house and located between floors concrete slabs ceilings Its task is to ensure the immobility of load-bearing walls and prevent cracks from appearing in them. It distributes the loads from interfloor slabs on the contour of the building and reduces the likelihood of deformation of openings.

Armopoyas last floor under the Mauerlat - this reinforced belt is poured after the construction of the last floor and serves as the basis for the Mauerlat. It compensates for the load from the roof itself and additionally from precipitation, snow and wind.

Armobelt of the first level (under the foundation)

In order to significantly reduce the pressure of the house on the ground, the armored belt under the foundation should be made 30-40 cm wider than the main concrete strip of the foundation. And its thickness, depending on the number of floors, can vary from 40 cm to 50 cm.

The armored belt of the first level is made for all load-bearing walls of the building, and not just along the perimeter of the external walls. The reinforcement frame for it is made exclusively by knitting, and no welding. Welding can only be used when preliminary connecting the main reinforcement into a common spatial structure.

The diameter of the main reinforcement is 16-20 mm. The diameter of the transverse clamps is from 8 to 10 mm. Step - no more than 20 cm.

It is very important that when pouring concrete into the foundation, the reinforcement cage does not come into contact with the base. The fittings must be recessed in the middle. This can be achieved by placing pebbles or halves of bricks under the frame. This will save metal carcass from the corrosion process (rust).

Pouring the reinforced belt with concrete must be done in one go. This is necessary in order to avoid joints that reduce the strength of the structure.

Second level armored belt (on the foundation)

Before you begin to build walls on the foundation, you need to fill in the base reinforced belt. At its core, it is a continuation of the main foundation and serves as an additional strengthening of the building.

If to knit the frame for the first level of the reinforced belt, 8 rods of the main reinforcement were needed, then to knit the frame for the reinforced belt of the second level, it will be enough to use 4 rods of reinforcement with a diameter of 14 to 18 mm and clamps with a diameter of 6 to 8 mm.

The structure is poured along the perimeter of the building along the external walls. The average height is from 20 to 40 cm. Concrete for pouring the base reinforced belt - M200 or higher.

The reinforced belt of the first level is the basis of the house, and the basement belt is an addition and reinforcement load-bearing capacity armored belt for the foundation. Therefore, if the armored belt of the first level was filled with high quality, then the belt of the second level (basement) can be made not so strong.

In general, we can say that a combination of high-quality armored belts of the first and second levels is a guarantee of the reliability and durability of the foundation on any soil.

Reinforced belt for floor slabs

If under construction multi-story building, then the floor slabs carry heavy loads on the walls. In order to reduce this load, at the junction height, between the wall and the floor slabs, it is also necessary to install a reinforced belt. It is poured along the perimeter of the external walls and has a height of approximately 20 to 40 cm. As for the width of the armored belt, it should preferably be equal to the width of the wall.

The distance between the slab and the belt should not exceed the width of 1-2 bricks. The ideal distance would be 10 to 15 cm.

The reinforcement frame for the interfloor belt is knitted in the form of a mesh of two-core reinforcing bars thickness from 10 to 12 mm.

If the masonry of the building walls is made of aerated concrete blocks, then two thin blocks can be placed at the edges as formwork and a reinforcement frame can be installed between them and concrete can be poured.

For walls 40 cm thick, 10 cm partition blocks can be used as formwork.

If the wall thickness is less than 40 cm, then in standard aerated concrete block You can cut out a gutter yourself to place a reinforced belt in it. Or buy a special one in advance aerated concrete U-block with a ready-made gutter.

Armobelt under the Mauerlat

The reinforced belt, which is installed under the roof, allows for strong fastening of the roof (mauerlat + rafters) and installation of wooden and concrete floors between the attic and the top floor.

The armored belt for the Mauerlat, compared to other belts, is the smallest in width. This is acceptable since the vertical load that falls on this belt is minimal.

The Mauerlat is attached to the reinforced belt using threaded anchor pins, the diameter of which should be from 10 to 16 mm. Depending on the shape of the bolts, they are welded to the reinforcement frame or simply inserted into the concrete and held in it due to their curvature.

In order not to encounter difficulties later, the location of the anchor studs and the distance between them must be calculated in advance, so that in the future they will be in the middle between the rafter structures. The main thing is that rafter legs then they didn’t match the studs. After pouring concrete, the length of the studs should be sufficient to install the Mauerlat on them and secure it with two nuts and a washer; this is approximately the height of the Mauerlat + 4 cm.

Also, when making a reinforcement frame, you need to take into account its width and height so that when the concrete is poured, there is at least 3-5 cm between the frame and the outer surface of the concrete.

Reinforced brick belt

In the construction of large houses, especially several storey ones, it is mandatory to make a reinforcing belt strictly from reinforced concrete, but for small outbuildings where powerful reinforcement is not required, the belt is laid out from brick.

The design of the reinforced brick belt consists of 3 to 5 rows brickwork, reinforced reinforcement mesh. Place the mortar in the seams of each row of bricks. steel mesh made of wire with a diameter of 4-5 mm, with a cell size of approximately 3-4 cm.

The width of the brick belt should be equal to the width of the load-bearing wall.

Sometimes, in order to enhance the strength of the structure, bricks are placed not horizontally, but vertically at the ends.

Is it necessary to insulate the armored belt?

In terms of thermal insulation, the reinforcing belt does not perform very well and through it in winter time every year some amount of heat is lost. Because of what inside Condensation may form, which leads to mold formation.

To avoid this, when constructing an armored belt, it must be insulated from the outside using heat-insulating materials.

“What to insulate the armored belt with,” you ask. There are several possible answers to this question. The most common material is polystyrene foam, but polystyrene foam and aerated concrete can also be used.

The main thing is that before knitting the reinforcement frame and pouring concrete, you need to take into account and remember to leave space (from the outer edge of the wall) for laying insulation.

What grade of concrete is needed for an armored belt?

For the manufacture of reinforced belts under interfloor ceilings And rafter systems, the minimum requirement is to use concrete grade M200 or M250, or even higher. The required concrete can be purchased ready-made or mixed yourself using M400 cement.

In order to make concrete yourself, it is important to know the proportions of the components.

The amount of water in concrete should be minimal, and to impart plasticity, a plasticizer is used - an additive that increases the mobility and fluidity of concrete.

As for the water-cement ratio. It should be in the range from 0.5 to 0.7 per unit of cement, in other words, for 10 parts of cement there should be from 5 to 7 parts of water.

Excessive amounts of water in concrete negatively affect its performance and make it less durable.

The cost of filling an armored belt

The cost of the armored belt is always calculated individually for all specific projects. The main parameters of the structure and the materials from which the house will be built are taken into account.

First of all, depending on what the walls of the building are made of, the technology for manufacturing armored belts for the foundation, for the floor (roof) and if the building has several floors, then for interfloor ceilings is determined.

As a rule, reinforcement belts are required when building a house from lightweight materials, such as aerated concrete, slag concrete, foam concrete, polystyrene concrete, expanded clay concrete and arbolite concrete. This is because blocks made of these materials do not have high strength and are afraid of high seismic activity, unstable soils and point pressure from the roof.

Calculate the cost of filling an armored belt simple task, since houses are almost always different and in each project there are many factors that will influence the final price.

If you seek the services of a private foreman Mikhail Dolgikh, he will help determine and calculate all the work on installing an armored belt for your home.

The cost of filling a reinforced belt will be 250 rubles. per linear meter.

Trust in professionals

Only professional builders should trust the installation of the harness.

When choosing performers of work, pay attention only to highly specialized professionals who have been working in their field for many years and are well familiar with the installation features of this type of structure.

The cost of the work must include payment for the crew, all the machinery and equipment necessary for construction.

With a qualified construction team you can do reliable design at home, and an experienced foreman will help you minimize the time and costs according to the estimate.

To find out the price of an armored belt in your home project, contact our specialist using the contacts listed on the website.

An armored belt is a metal structure made with your own hands from reinforcement. Its purpose is to increase the strength of load-bearing walls and maintain integrity under impacts natural conditions and during ground movement. During the construction of a house, several such belts are installed. The formwork for the armored belt is laid to create load-bearing walls or ceilings. It is poured with concrete until it hardens completely.

The advantage of such formwork is ease of installation, minimal quantity necessary materials and tools, low financial costs and ease of dismantling. To strip the formwork, you will need to remove the fasteners and remove the boards after the concrete has hardened. In the future, they can be reassembled and made into formwork for another building.

The principle of creating a structure for an armored belt does not differ from the technology of constructing formwork for a foundation or window openings.

Construction for a house made of aerated concrete

Using the scheme described above, you can make formwork with your own hands for any type of house. The device is suitable for brick, aerated concrete, concrete. The armored belt promotes high-quality connection of the roof to the building frame. In a house made of aerated concrete, it is secured using additional blocks or formwork. The first option is easier, but more expensive. Cheaper to do it yourself wooden structure

. The following instructions will help you build it correctly:

1. Scheme of section of armored belt in formwork for aerated block
2. Attach screeds every 50-70 cm to increase the strength of the structure and prevent deformation under the influence of heavy concrete.
3. Place reinforcement with a diameter of 8 to 12 mm inside. The choice depends on the location of the house. If the walls are exposed negative impacts environment, then rods with a maximum diameter are suitable. In regions with calm seismic conditions, you can save on reinforcement by choosing inexpensive models with a minimum diameter.
4. The reinforcement is laid on special stars, which creates an active bottom layer on the aerated concrete blocks.
5. Tie the rods with wire.
6. Pour concrete, compact and level the layer.

If the formwork is installed to secure the roof, then before pouring the concrete, studs are installed to secure the floors. They can be of any length, but it is more convenient to work with specimens less than 1 meter long.

Specialists will help you make the correct formwork for an armored belt for a house made of aerated concrete if difficulties arise. Before work, it is recommended to make calculations to prevent mistakes and purchase required quantity building materials.

Nuances when working with wooden structures

Installation of formwork from wooden boards requires a competent approach. At incorrect installation structure there is a risk of breakage and rupture of boards under the influence concrete mortar. To do the work yourself correctly, you need to consider several nuances:

• the formwork consists of boards, which must be fastened with careful control over the verticality and horizontality of the structure;
• the surface of the boards in contact with the concrete is cleaned and leveled;
• to reuse elements, easily dismantle the structure and prevent concrete leakage, the panels are covered with film on the inside;
• if you saturate the boards with waste oil or hydrophobic grease, it will be much easier to do the formwork yourself;
• Reuse of boards is not allowed. If they have been exposed to precipitation, they will most likely be destroyed during repeated use;
• a permanent structure is rarely made; more often it is assembled from polystyrene foam blocks, with already built-in fittings. This one is laid by stringing elements onto rods;
• Before work, you should make a choice between the initial production of the armored belt and the formwork. In some cases, it is easier to lay the reinforcement on aerated concrete blocks, and then begin assembling the wooden structure.

The formwork for the frame from reinforcement is made independently without the use of expensive materials and special equipment. But only competently organized and carried out work guarantees the creation of a reliable and robust construction. If difficulties arise during the assembly process, it is recommended to seek professional advice to prevent serious mistakes that could lead to the destruction of the structure.