A building constructed from aerated concrete blocks is often is influenced by natural elements. This is expressed in its settlement and swelling of the soil along the perimeter of the foundation. Strong winds and heavy rains are a threat to the integrity of the structure. To protect it, an armored belt is created on aerated concrete, smoothing the impact of climatic factors.
Availability of reinforcing structure increases the reliability of the structure and prevents the appearance of cracks. When soil moves or heavy precipitation begins, such an element ensures uniform distribution of loads on the building.
The reinforced belt for aerated concrete not only increases the resistance of the walls of the house to loads from internal and external environment, but also has a connecting purpose – connects individual elements buildings into a complete structure. The belt acts as a stiffener, connecting the walls to each other. Its presence allows you to make window openings wider due to sufficient strength characteristics.
The possibility of wall deformation and building destruction is minimized when using this load-bearing element. It is especially necessary in a house made of aerated concrete, built on sloping ground.
The reinforced belt on aerated concrete is a continuous frame used as a support for load-bearing, external walls building.
Its dimensions are determined by the length and width of the wall. For single-layer masonry 30 cm optimal thickness armored belt for aerated concrete is 25 cm. Recommended for increasing the thermal conductivity of the house and as a additional protection from the cold, lay insulation on top of it and lay out another layer of masonry.
In order to strengthen the structure, the height of the armored belt is equalized with its thickness. Equilateral elements exhibit greater wear resistance than rectangular ones. The tape structure, which follows the contours of the walls along the perimeter, makes the building more reliable and resistant to atmospheric and mechanical influences. This also applies one-story house, and a multi-story building.
There are several types of belts:
Each of them has its own specific features construction work according to instructions.
Armopoyas in construction industry used to increase the resistance of the load-bearing walls of the house to external and internal influences. It promotes connection individual parts building into an integral structure, performing the following functions:
The armored belt on aerated concrete satisfies the building's need for a load-bearing structure. It allows the material to safely tolerate point loads of various types, which prevents cracking and destruction of individual block elements and maintains the strength of the walls.
Formwork belt made using aerated concrete contributes to formation of a smooth surface belt due to its even distribution. Its versatility contributes to high-quality results and efficient construction work.
The belt installation technology has certain advantages and disadvantages. First of all, the quality of the material and the service life are taken into account.
The advantages of the armored belt on aerated concrete:
The construction of a building where aerated concrete is used as the main material will cost three times less than the construction brick house. Aerated concrete blocks lightweight, impact resistant climatic conditions and have good frost resistance due to its greater thickness than brick. The useful life of the housing will be at least one hundred years.
Flaws:
Despite the additional costs, you can’t do without an armored belt. Compared to the advantages of installing it, the disadvantages do not seem so significant.
An armored belt on aerated concrete does not require any special device technology. It consists of several sequential operations:
The specifics of operation can only be influenced by the area where the belt is located, but in general, the instructions for installing it have a standard form.
When you cannot do without an armored belt, the process of assembling and installing a frame under it from boards and their scraps begins. This method is quite simple:
This design is able to withstand the mass of concrete when it is poured and not suffer. If the frame is needed for floor beams, then it is mounted along outer surface walls, and the height is equal to 20-40 cm. To be able to carefully disguise the insulation if it is necessary to use it, you can move the formwork deep into the walls. It is convenient to fill the formed niche with heat-insulating material.
Correct, competent installation of floors is a guarantee of a reliable, long-term service life of buildings. For buildings made of blocks (aerated concrete), additional support is required - reinforcement. An armored belt in a house made of aerated concrete is a special additional structure that is required when installing floor beams and roofs. The production of reinforced belts for houses made of cellular concrete, the installation of floors is regulated by SNiP. Here are the brands and characteristics of the beams, the necessary parameters for supporting them on the walls, what they are made of and how they are made. Compliance with these standards is directly related to the structural stability of building structures.
Armopoyas is required element when building a house
A structure made of aerated concrete material will not be able to withstand high loads (shrinkage of the building, settlement of the soil underneath, daily temperature changes, seasonal changes). As a result, the blocks crack and collapse. To avoid various types of deformations, monolithic reinforced concrete devices are installed. The reinforced belt takes on these loads, distributes them evenly, ensuring the reliability of the structure, and connects the walls into one whole.
It is also needed to distribute the vertical load. Giving the structure rigidity, it prevents movement of the floor ( aerated concrete blocks expand with the movement of moisture and steam). For this, it also received the name - unloading, seismic belt. Another purpose of armored belts is to protect the edges of the upper blocks from destruction (installation interfloor ceilings). Remove the point load of timber beam frames when constructing the roof. Taking these qualities into account, an armored belt is required for beams and floor slabs of the second (subsequent, roof) floors in a house made of aerated concrete blocks.
An armored belt is needed to evenly distribute the load on the foundation and walls
When constructing one-story buildings, the question often arises whether an armored belt is needed for a one-story house made of aerated concrete. This element is simply necessary if:
support beams (mauerlat) are installed on which the roof rafters are attached, this is especially true for projects one-story houses with attic;
the foundation is made on unstable soil to connect the entire structure into one (load-bearing) system.
A prerequisite for houses made of aerated concrete blocks is a complete loop of the belt. The outline of the structure must be without breaks. If you refuse to use an armored belt, the appearance of cracks is inevitable. Even despite the lungs wooden floors and reinforcement of masonry from aerated concrete blocks.
Unlike brick structures, for a house made of aerated concrete, the reinforcing belt must be made as a single ring
This type of construction is made for slab or beam floors. The main purposes of floors include the perception and transfer of the load of its own weight, the interior, people onto the walls, the division of the internal space of buildings into floors, and the overlap of spans. This is a load-bearing structure supported by external and internal walls along the entire perimeter.
The basis for pouring the armored belt is the supporting surface of the load-bearing walls, which absorbs the entire mass of the building. General requirements:
installation is carried out along the entire perimeter of the future building, taking into account interior walls;
for external load-bearing walls, blocks with a density of at least D-500 are used;
height, made according to the height of aerated concrete, or less is allowed (200-400 mm);
belt width – 500 mm (possibly reduced by 100-150 mm);
the reinforcement frame is placed on supports (brick, pieces of blocks, plastic fasteners) 3 cm high so that it does not touch the walls, thus creating a so-called protective concrete layer;
For pouring, concrete of at least grade B-15 is used.
Formwork for pouring concrete mortar with reinforcing mesh
On our website you can find contacts construction companies who offer foundation repair services. You can communicate directly with representatives by visiting the “Low-Rise Country” exhibition of houses.
Reinforced belt for aerated concrete under floor beams, poured into pre-prepared formwork. This frame is made from:
Plastic.
Aluminum.
Aerated concrete blocks.
This type of formwork is used most often. This is the cheapest and most popular option. Installing double sided removable wooden frame(made of wood), it is fastened with self-tapping screws on both sides of the wall (to aerated concrete blocks). Top part pulled together with wooden jumpers (step 800-1000mm). This is necessary so that when pouring concrete the structure does not move apart.
Wood formwork is the most common option due to its availability.
The reinforcement frame (reinforcement diameter 8-14 mm), made in the form of a “ladder” (connected by jumpers in increments of 5-7 cm), is placed in the prepared space. The rods are knitted together using knitting wire (every half a meter), forming a square shape. It is not recommended to use welding, due to rusting of the welds in the concrete. For beam floors (if not high load), a frame of two rods, with a monolith height of 30 cm, is sufficient. For covering with slabs, an armored belt with increased reliability is used (4 rods and a monolith - 40 cm).
After removing the formwork, outer wall insulated together with armored belt. If, during finishing, the outer walls are only plastered, then to remove the “cold bridge”, the formwork is moved deeper into the wall. And then insulation is installed in the resulting niche.
One-sided can be used removable formwork. In this case, the external function is performed by aerated concrete blocks (10 cm thick). They are laid on the bottom row using glue. WITH inside a wooden frame is attached. After that, insulation (5 cm) and fittings are laid. The top is also tightened with jumpers.
How to make wooden formwork for an armored belt:
The production of such formwork requires additional additional blocks or ready-made U-shaped aerated concrete products. In this case, internal (5 cm thick) and external (10 cm) or U-blocks (with walls 5 and 10 cm) are installed on glue (on top of the previous row). In inner space, fittings and insulation are placed (to the outer wall). Afterwards, concrete is poured. For openings (doors, windows), at the level of the top of the previous row of masonry, wooden lintels are installed. They are secured with vertical supports.
This formwork option is relatively easy and quick to install. But it is not very popular due to the need to purchase additional material, and as a result, increased construction costs.
An armored belt using concrete blocks will be more expensive, but with their help the place of reinforcement will not be noticeable
This armored belt is installed from below attic space, both for one-story and two or more storey buildings. It is necessary for installing fasteners under the Mauerlat, and takes the main load from rafter system(vertical, tensile forces) and load from snow and wind. Mountings installed for timber simply in aerated concrete, it will not withstand these loads. They will become loose (due to the low strength of the blocks) and the Mauerlat will move from its place, which will inevitably lead to negative consequences. It also plays the role of additional strengthening of the walls, preventing them from cracking.
Such a belt can be made of reduced dimensions due to its thickness (by correctly calculating the load) and two reinforcing rods can be used for the frame. Distinctive feature Vertical studs with nuts serve as such an armored belt. They are installed together with the reinforcement cage, before pouring concrete. It is on these fastenings that the Mauerlat will be installed, secured on top with nuts. This is the basis for the roof rafter system.
In the same way, you can make an armored belt in a house made of aerated concrete and under wooden floors. Pre-prepared fasteners for wooden structures, will avoid subsequent drilling of concrete to install anchors.
To fill the belt, after completing all preparatory work, ready-mixed concrete (M200) is used or produced on site in a 3-5-1 ratio from:
cement (M400).
Filling is carried out not in parts, but completely around the entire perimeter. If such a process is impossible, the necessary jumpers are made in advance. Before pouring the next batch of concrete, the temporary lintels are removed, the joints are moistened with water and filled with concrete. The solution is compacted with an iron pin, removing air bubbles from it. During the hardening process (about 5 days), the concrete is watered to increase strength.
Preparation of solution for filling armored belt:
A reinforced concrete monolithic belt made in accordance with all the necessary parameters and rules will give a house made of aerated concrete blocks the necessary strength and durability. It will protect walls from premature cracks and allow you to make a reliable roof.
Armopoyas (or reinforcing belt, as it is also called) is a reinforced monolithic design, completely repeating the contour of the load-bearing walls of the house along the perimeter and serving to strengthen them and properly redistribute loads. Pouring an armored belt in a house made of aerated concrete is a necessary condition, guaranteeing the strength of the building. We will talk about its structure, insulation and reinforcement in detail in today’s article.
If we consider the strength characteristics of materials such as aerated concrete, foam concrete, wood concrete, etc., it will become clear that these materials themselves are quite fragile, therefore, if a large load is applied to them at a point, they can easily collapse.
During the construction of a house, the load on its walls gradually increases both from the top and from the bottom, in the form of soil movements and uneven shrinkage. The final element - the roof - also exerts significant lateral (bursting) pressure on the walls. The absence of a reinforcing belt in this case can lead to the appearance of cracks in the walls of the house, as well as to their complete rupture and destruction.
The armored belt, forming a rigid frame and tying all the walls together, takes on the loads from the upper floors and the roof and distributes them evenly along the entire perimeter. Filling of the reinforced belt is necessary in places of increased seismic activity, as well as under the condition of additional serious loads on the building.
When constructing one-story buildings, the pouring of the armored belt begins after the final construction of the walls, before installing the roof. In this case, as a rule, studs are placed in the armored belt, to which the roof mauerlat is attached. This allows you to firmly “tie” the roof to the frame of the house.
If the house has more than one floor, then the reinforced belt is poured after the construction of each subsequent floor under the floor slabs and finally, before installing the roof.
As mentioned above, an armored belt is needed to properly distribute the load from heavy floors onto the walls of the building. But what if they are not used as flooring in the house? reinforced concrete slabs or monolithic concrete, and ordinary wooden beams, whose weight is several times less than concrete?
When building houses from aerated concrete, you can often find this approach when walls are erected without the use of a reinforcing structure. In this case, wooden floor beams are mounted directly on aerated concrete blocks, and the ends of the beams, as a rule, go outside.
Without exposure to large loads, this approach may be justified, but in most cases, the absence of an armored belt in such houses is a sign of the absence of a construction project. Such a structure can stand for decades without damage, but if standard loads are exceeded, the local pressure of the timber on the aerated concrete can lead to the formation of cracks and its destruction.
Before you start building a house, it is important to remember that an armored belt is reinforced concrete structure, therefore, after its installation, concrete needs at least 28 days to dry and gain brand strength. Therefore, it is important to properly plan the progress of construction so that technological pauses (of which there will be as many as the number of reinforcing belts in your house) do not disrupt the progress of construction.
The width of the armored belt, as a rule, is chosen equal to the width of the aerated concrete block, but this has its own characteristics. Hardened concrete is a serious cold bridge, leading to heat leakage from the house, so it is necessary to provide a thermal break that will cut off the flow of cold from the outside.
If the insulation of a house made of aerated concrete is carried out from the outside using technology wet facade, then the insulation itself will act as a thermal break, protecting the structure from heat loss.
If insulation of the facade is not planned, or a façade with a ventilation gap is provided, then the insulation of the reinforced belt must be done directly when pouring it. In this case mineral insulation, or expanded polystyrene or polystyrene foam are placed in the formwork next to the reinforcement closer to the outside of the house, reducing the width of the reinforced belt by about 5 cm.
The first stage of creating an armored belt in a house made of aerated concrete is the installation of formwork. At the same stage, it is necessary to foresee what the height of the armored belt will be, and with this in mind, the width of the boards for the formwork is selected. Standard height the reinforcing belt is 10-20 cm and is similar to the height of a standard aerated concrete block.
There are two fundamental principles in constructing the formwork of a reinforcing belt: different approaches. In the first case, special factory-produced U-shaped blocks, which are ordinary aerated concrete blocks with selected U-shaped cavities, can be used as formwork.
A number of such blocks are placed on wall blocks According to the usual scheme, reinforcement is laid in them and concrete is poured. After drying, a ready-made armored belt is obtained, which, among other things, is protected from the formation of a cold bridge by an outer layer of aerated concrete. The thickness of the outer wall in such blocks is thicker than the inner one, which gives it thermal insulation properties.
Such blocks are quite expensive, so construction sites often use ordinary aerated concrete blocks with manually made grooves to fit the size of the U-blocks; fortunately, aerated concrete can be easily processed with a special aerated concrete saw.
The second case is traditional formwork made of boards or wooden panels, like. It is mounted from boards with a thickness of 20 mm or from sheets of plywood. Typically, the lower edge of the formwork is directly attached to the aerated concrete on both sides, and the top is fastened together wooden blocks in increments of 60-100cm.
A prerequisite in this case is the leveling of the formwork for the reinforced belt in all planes, since the poured reinforcing belt will serve as the basis for floor slabs or for the roof mauerlat.
On at this stage needs to be done by force metal carcass armored belt, which will give the main strength to the entire structure. When reinforcing an armored belt, there are several basic rules that must be followed:
Reinforcement schemes for L-shaped corners and T-shaped junctions of the reinforced belt are shown in the figure below.
A common mistake made by novice builders is to use reinforcement with a diameter greater than 12mm for ordinary private houses. This approach is erroneous, since the use of thicker reinforcement no longer leads to an increase in the strength of the reinforced belt, but increases the cost of its acquisition.
It is also recommended to use fasteners for the reinforcing frame. Clamps are needed to ensure that when pouring concrete, the reinforcement does not shift and become exposed. At the same stage, the insulation is laid and fixed in the formwork.
Pouring concrete into the formwork is the most important stage in creating an armored belt in aerated concrete house. The easiest way to fill the armored belt is to use purchased concrete. Typically, the M200 or M250 brands are used for this purpose. Its strength is sufficient for private construction.
It is most convenient if the concrete is delivered to the site in a mixer along with a gasoline pump. The concrete pump takes the finished mixture from the mixer and, using a long hose, delivers it directly to the pouring site. Otherwise, concrete will have to be delivered manually in buckets, which will increase pouring time and labor costs.
How pouring occurs using a concrete pump can be seen in the video:
If it is not possible to use industrial concrete, it is mixed by hand. In this case, you need to contact Special attention to ensure a constant ratio of components in all batches to obtain a uniform composition along the entire length of the armored belt.
Special attention should be paid to the fact that the armored belt must be poured at a time to avoid ruptures and inhomogeneities. This is easy to achieve when using a mixer, but when kneading by hand concrete mixture, you need to plan all the stages of pouring in advance in order to do it in one day.
After pouring concrete into the formwork, you need to vibrate the mixture using a special construction vibrator. This will allow all the air to escape, which, when the concrete hardens, can cause air pockets, leading to a loss of strength of the reinforced belt. In this case, you need to try not to touch the reinforcement with the vibrator so as not to change its position.
After pouring the armored belt, it takes time for the concrete to gain grade strength. As a rule, this takes 28 days. After this, you can begin laying floor slabs or installing the roof.
We hope that the article was useful. If you have any questions, leave them in the comments and we will try to find the answer together.
An armored belt on aerated concrete is a structural element that protects the house from all types of loads and deformations. It is installed on the foundation, on each floor and at the junction of the roof with the floor. The structure is made of cellular blocks or bricks and connects the walls into a single whole, like a kind of stiffening rib.
The reinforcement structure is a closed monolithic system that follows the perimeter of the house. The main function is to protect the building from deformation and ensure strength, rigidity, reinforcement, uniform load distribution. Is it necessary to make an armored belt for aerated concrete?
There are a number of reasons why its construction is considered mandatory:
Due to the contact fragility of aerated concrete, it is dangerous to rest power structures directly on it
All manipulations can be carried out manually if you have at least some experience in construction. It must be securely fastened to the solid wall.
Modeling of the frame mesh is subject to the general standards adopted when conducting concrete work.
Technological principles:
The rods should not come into contact with the base material; plastic or wooden supports will help. They will allow the filling to be distributed evenly.
This is a universal, but more expensive option compared to similar technologies.
Sequencing:
The system simulates the laying of U-blocks. Modules play a role permanent formwork, the strength of the adhesive mass is sufficient to withstand the load from pouring concrete.
Sequencing:
In a similar way, the construction of an armored belt made of bricks on walls made of aerated concrete is realized, which is advisable with a thickness of 510-610 mm. Two walls of the structure are laid out in half a brick, reinforcement is laid into the resulting cavity and concrete is poured. Brick armored belt can be laid on the foundation, under floor slabs, under the roof.
It is better to choose boards with maximum flat surface. The armored belt will be smooth on top
Such an armored belt is most often installed on houses built on the basis of 300, 250, 200 mm blocks. The panel formwork frame is created on the basis regular boards, OSB, laminated plywood. The height of the system should be 200-300 mm, the thickness corresponds to the thickness of the wall.
Technological principles:
An armored belt on aerated concrete under wooden floors can be laid on double-sided formwork with polystyrene foam with outside.
The filling must be monolithic, that is, done at a time. It is highly undesirable to lay the solution in parts. If the master is forced to act in this way, he must install intermediate jumpers made of wood.
When performing the next pour, these elements are dismantled, the joint areas are abundantly moistened with water, and only then the work continues. The mass is compacted; by manipulating a piece of reinforcement, the voids that have arisen can be removed.
IN hot weather The belt is covered with a film, which will prevent rapid evaporation of moisture and the formation of cracks. After 4 days, the system is ready for subsequent work - laying rafters or floors.
Technology for constructing armored belts on foam blocks and armored belts on expanded clay concrete blocks identical to the specified methods applicable to aerated concrete.
Is it necessary to make an armored belt for aerated concrete in all cases? If the construction is intended small house To fix the walls of a gas block with timber, you can use a simpler method. To do this, metal studs (steel fasteners in the form of bolts with a square base of 5x5 cm) are embedded in the wall.
The fasteners begin to be installed 2-3 rows from the top of the masonry. The length of the pin should be sufficient to pass through the beam.
When a 4-slope roof is being erected, the armored belt must pass along all external walls. If 2-slope, with window openings on gables, belts are placed only under the mauerlat
The structure is erected along all external and internal load-bearing walls on which the floor beams will rest (the same applies to slabs).
If the installation of cladding is intended, the armored belt must grip the cladding wall in order to connect it with the main structure. If this stage of work is not implemented immediately, but, say, next year, work is carried out only on aerated concrete.
The parameters are determined depending on the dimensions of the wall structures. The thickness of the armored belt for aerated concrete under the Mauerlat must match the thickness of the wall. For example, a 400 mm wall requires a 400 mm armored belt, 15-20 cm high.
The armored belt on aerated concrete, the dimensions of which are taken into account by the master, responds well to various movements and strengthens the house. For example, when using cladding, the thickness of the monolithic fill can be reduced by the thickness of the cladding, but when work is carried out simultaneously, the cladding material can also be captured in the reinforced belt.
If you plan to attract a small team of workers to build an armored belt on aerated concrete, the price will be at least 500 rubles/m.p. The average cost of constructing 1 m³ will be 2.8-3.5 tr.
How an armored belt is organized in practice on aerated concrete is shown in the video:
The use of new technologies in construction contributes to the durability, stability and strength of any building. Why do you need an armored belt on aerated concrete? Anyone who wants to build a house should learn more about the properties of this structure, its varieties and the intricacies of installation.
An armored belt is a reinforced strip of concrete that covers the entire building. It is designed to strengthen walls made of aerated concrete, which contributes to their resistance to various loads and prevents deformation. Reinforcement brings all parts of the structure together and creates special stiffening ribs. This significantly increases the resistance of the walls to any load and is an excellent way to strengthen the load-bearing structure.
The use of an armored belt is necessary for aerated concrete, because it performs important functions:
Protects wall structures from deformations as a result of ground movements that can occur during changing seasons and shrinkage of the building.
Provides walls with increased strength.
Gives rigidity to the structure and strengthens it.
Distributes the load evenly.
Removes point loads when attaching beams with anchor bolts.
What other reasons are there for the construction of a reinforcing belt? Mauerlat is a special support that supports the roof truss system. It helps connect the walls of the building with the roof. This helps distribute the load evenly across all surfaces. If roof structure is secured with bolts, cracks may occur. If present hanging rafters, then aerated concrete blocks experience most of the load, which can result in their expansion. To distribute the load, monolithic belts are made.
Advice! Such an unloading belt must be unbreakable. Its main purpose is to increase the resistance of building walls to loads and prevent the appearance of cracks.
There are several types of reinforcing belts:
Sub-foundation armored belt, otherwise called grillage. The walls rest on this structure strip foundation. Also, such a belt connects pillars in pile and columnar foundations. It differs from its analogues in that it fits under all existing load-bearing walls of the building. The structure uses 14 mm reinforcement with 10 mm strapping. In this case, the step for tying should be no more than 20 cm. On a home base, you should not skimp on materials; the safety margin of the grillage should be about 20-30%.
Basement, performed between the walls and the foundation. This belt is installed after the foundation has been erected. This structure must be erected regardless of whether the foundation walls protrude above the ground or are level with it. It's worth doing for everyone load-bearing walls, especially if the floors are slabs.
Interfloor reinforced belt is installed in order to strengthen the walls and distribute the load from the slabs throughout the frame of the house. This belt is also called the unloading belt. Another feature of it is that it prevents the walls from moving apart. The number of interfloor reinforced belts depends on the number of floors.
The underroof belt to which the Mauerlat is attached is very important. It distributes the loads from the roof and the entire rafter system. Allows you to level the box and secure the Mauerlat well.
Important! Under-roof and inter-floor armored belts are required. If the foundation is on a slab-cushion, then there is no need for a base reinforced belt and grillage.
In order for the structure to serve you for a long time and be as durable as possible, the reinforced belt must be made, gradually observing all important rules. The creation of this product occurs in three stages.
To install the armored belt, you will need special formwork. It is made from boards, as well as from bricks and blocks.
Note! Reinforcement for making an armored belt is placed inside the formwork and filled with concrete. You can make this solution yourself or use a concrete mixer. You will need a lot of solution.
The simplest formwork can be considered a frame made of boards. These boards must be at least 2 cm thick. They must be joined together using pieces of wood. This structure must be secured on top with special ties; the entire lower part is screwed to the wall using self-tapping screws.
How to knit reinforcement in an armored belt? This question is answered by the next stage of creating an armored belt.
First, a square is made from four reinforcing bars. The rods are secured with jumpers. For such a frame, ribbed reinforcement is used. After this, the main fittings are installed. For fastening you need to take soft wire. With its help, the longitudinal reinforcement is first fixed at a height of 40 mm from the edge of the wall. Then the two rods are connected by short jumpers. In this case, their installation step should be about 250 mm. Next, the vertical elements are mounted in a similar way. Then the longitudinal reinforcement is screwed to the vertical parts.
Important! When creating an armored belt for aerated concrete, it is made with a minimum number of connecting seams. This ensures uniformity of the material.
The final stage is pouring concrete. This procedure can be done using ready-made mixtures or you can make the mixture yourself. To do this, take 3 parts sand and 5 crushed stone for 1 part cement. Gradually adding water, you need to mix the solution.
To prevent voids from forming inside the mixture, the solution must be poked several times with a piece of reinforcement. After 4-5 days the formwork can be dismantled.
The process of creating an armored belt for aerated concrete is complex and has some nuances. Just like a reinforced belt is quite important.
In regions with cold climates, special attention should be paid to insulating the belt on the outside. In this case, blocks are laid on the outside, and formwork is placed inside.
If the floors are made of wood, then the beams can rest directly on the masonry.
The formwork must be poured in one cycle. If necessary, you can put pieces of wire or pins inside.
To compact the solution, it must be pierced several times with an iron rod.
To prevent concrete from cracking in hot weather, the structure needs to be watered abundantly.
If you make an armored belt, carefully following all the recommendations, then it will be a guarantee of the strength and durability of any structure. To do this, do not rush and save on materials.
