How to make an armored belt from bricks on walls made of aerated blocks?

Aerated block construction and renovation require careful attention to structural stability and integrity. Building an armored belt out of bricks is one efficient way to strengthen these walls. This method not only makes the walls stronger, but it also gives them more support against other forces like wind pressure and structural loads.

To create an armored belt, simply surround the aerated block walls with a layer of bricks. This layer serves as a strong base, distributing weight uniformly and increasing the structure’s overall durability. It acts as a shield from possible harm and contributes to the walls’ long-term structural integrity.

Before beginning to build an armored belt, there are a few things to keep in mind. First off, a big factor in deciding how effective the reinforcement is is the kind and caliber of bricks used. The armored belt must also be precisely planned and executed in order for it to blend in perfectly with the current aerated block walls.

An armored belt is made up of multiple steps. Usually, it starts with leveling the base and preparing the foundation. After that, a precise pattern or bond is followed when laying the bricks to maximize strength. Bricks are firmly cemented together with mortar, creating a sturdy, long-lasting layer all around the walls.

When needed?

This type of armored belt is constructed as a narrow, continuous strip of masonry that is strengthened with steel rods or mesh running the length of it. This is explained by the fact that, despite having good compressive strength, aerated concrete blocks are completely incapable of withstanding bending, which leads to early wall cracking "in real life."

Although such a structure cannot match the strength of a concrete monolithic belt, its qualities are more than adequate for many low-rise construction projects to create sturdy load-bearing aerated concrete walls.

The primary loads are supported by the reinforced belt, which keeps the load-bearing walls from shifting in relation to one another when they are subjected to forces of varying intensities or directions.

When the wall itself cannot support the armored components, the armor belt can also act as a mounting location for the object’s critical reinforced elements on anchors. Because of this, the developer needs to first design a brick belt that divides the area according to the technology that is specified in the house design.

Citation. There are three different kinds of reinforcement: transverse, vertical, and longitudinal. The first two techniques are applied in seismic construction zones, while the last technique, which is applied everywhere foam concrete blocks are used as wall material, uses a specific masonry mesh to guarantee the stability of the structure.

In practice, the double armored belt device, which is positioned beneath the foundation base and has an upper cut when utilizing a column-type base, has produced excellent outcomes. Because the supports become a common truss that is firmly fixed by two ligaments, seasonal soil movement with this option of strengthening the object will not be able to "play" with them.

Requirements

The belt’s dimensions are chosen to complement the features of the gas blocks that will be used to install it.

They are calculated using the construction regulatory documentation that is currently in effect during the design process.

Installing armored belts on aerated concrete walls requires the following fundamentals:

1. Reinforcement protection on external walls must be consistent with their width without taking into account the size of the heat-protective layer.
2. The minimum height of the belt is established by standards – 150 mm and not more than the width of the wall, and the total height is not more than 40 cm.
3. The masonry is fixed after 3-5 rows; for heavy loads, reinforcement is allowed through each row.
4. When laying the armored belt, galvanized steel wire mesh with a cross-section of D=5 mm is used.
5. In single-layer walls up to 300 mm, the width of the armored belt is chosen to be 250 mm, and the height is equal to its thickness.
6. For light ceilings, a belt 100 mm high is installed, and for heavy concrete products – only a monolithic concrete reinforced belt with steel rods.
7. Reinforcement starts from the 1st row.
8. For window and door openings with a clearance greater than 1.8 m, additionally reinforced with 0.50 cm on each side of the opening.
9. The reinforced mesh is completely covered with laying mortar to avoid corrosion.

Consumables and tools

The developer must first buy a mesh with straight wire D = 5 mm or a zigzag shape D = 8 mm before performing longitudinal reinforcement using simple building materials. To provide transverse reinforcement, buy a mesh that has wire ranging from 2.5 to 8 mm from D. A red standard brick and the supplies for masonry mortar—cement and sifted sand—are also required.

The master needs to get ready using the tools in order to install the armored belt on the wall made of aerated concrete:

• Plumb line, to control the straightness of the brickwork.
• Trowel for economical laying of mortar.
• Hammer-pickaxe, for crushing brick blocks to fill voids.
• Expansion, for neat design of the edge of the seams.

Step-by-step technology of creation

An armored belt of this kind is elevated to a height of four to seven rows and is wider than the aerated concrete wall, with reinforcement D = 5 mm or an iron mesh matrix of thirty to forty mm.

With a header dressing of the third row and seam displacement of one-third of the length, the masonry technology is equivalent to regular brick walls.

Vertical pin reinforcement with thread D 12/16 mm is walled into the gas-block walls every 1.5 meters, at a depth equal to the size of the beam and twice as long as the freed end, to secure the Mauerlat in case it becomes a supporting structure for the wall.

The arm-circuit beneath the roof carries out the unloading task and fortifies the Mauerlat beam. Given that they will bear the weight of the plates, a brick armour-podium is necessary for both internal and external wall structures where the project calls for the installation of lightweight plates.

Crucial! This version’s belt is made to function as a unique buffer, distributing the pressure produced by the plate evenly across the entire wall area and avoiding the supporting structure from bending.

Laying a brick armored carrier on aerated concrete involves the following basic steps:

1. The first row is laid using the solution directly on the gas concrete layer. With a standard wall of 300 mm, the masonry is performed in 2 bricks, while filling the intervals with additional pieces.
2. Install the armored vehicles along the entire contour of the belt.
3. Put the 2nd row according to a similar scheme with further strengthening.
4. 3rd row – splice, it is performed with orientation towards the inner surface of the wall. The remaining external gap is filled either with quarters or pieces of insulation, for example, basalt wool, in cases where a heat-protective ventilated facade is installed in parallel.
5. Under the top row of blocks, when the belt under the floors is installed, reinforcing bars are laid in grooves, which will strengthen the rigidity of the wall structure and protect them from deformation cracks. The reinforced mesh for anti-corrosion protection is covered with a layer of laying mortar, and if it is made of ferrous metal, then it is also pre-painted.
6. After the completion of the setting process of the solution, place roofing material or roofing felt in 2 layers. This must be done to ensure waterproofing of important elements and to protect the timber and brick of the reinforced belt from condensation accumulation.
7. Next, points for attaching the Mauerlat are indicated, studs are installed and secured to the reinforced belt with nuts and wide washers.
8. The armored belt must be insulated, since brick has higher thermal conductivity than aerated concrete; in this combination, it turns into stable “cold bridges” in the wall structure of the house, which increases heat removal from its interior.

Possible errors and difficulties of the process

Installing a brick armored belt on aerated concrete walls is an extremely crucial step; any errors made in the manufacturing process will have a detrimental effect on the house’s construction until it is destroyed.

The following are the primary errors that cause the reinforced layers on aerated concrete walls to lose their strength:

• incorrectly executed structure, the continuity and closure of the belt along the entire perimeter is broken;
• the option of a brick reinforced belt was chosen for a multi-storey building or installed in a seismic area or on soft soils, when the standards require the installation of a concrete monolithic belt;
• the reinforced mesh made of ferrous metal was not pre-painted and not completely covered with a solution, which is why it quickly collapsed as a result of corrosion processes;
• reinforcement of different sections was installed;
• violation of the order of installation of the grid matrix on brick rows;
• the mesh was not secured with binding wire during installation.

It takes a calculated approach to strategically reinforce your walls made of aerated blocks, just like building an armored belt out of bricks. Although aerated blocks are lightweight and simple to work with, in some places—like the spaces around doors and windows and in load-bearing sections—they need extra support.

Make sure your aerated block walls are solid and adequately cured before starting. Determine the locations that require the armored belt; these are usually the areas around openings or anywhere that extra strength is needed. To ensure that the bricks adhere well, thoroughly clean the surface to get rid of any dust or debris.

Choose bricks that are appropriate for the armored belt next. For a smooth integration, these bricks should be very strong and ideally the same size as the aerated blocks. When laying the bricks, make sure that the mortar mix is strong enough for bricklaying and that each layer is level and oriented correctly.

To preserve structural integrity, check for plumb and level periodically while constructing the armored belt. To make sure every brick course is straight and evenly aligned, use a spirit level. In order to avoid settling problems or uneven weight distribution later on, this step is essential.

When the bricklaying is finished, follow the manufacturer’s instructions and let the mortar cure properly. After the armored belt has cured, you can strengthen it even more by applying a waterproofing or protective coating that is appropriate for your particular construction needs and the climate where you live.

These techniques will help you strengthen and extend the life of your aerated block walls by enabling you to fashion bricks into an armored belt.

This article explains the necessary procedures and factors to be taken into account when building an armored belt out of bricks on walls made of aerated blocks. An armored belt improves a building’s structural integrity and longevity by acting as a strong reinforcement around the outside of the structure. We’ll go over the supplies needed, how to prepare surfaces, and the detailed instructions for properly laying bricks. Homeowners and builders can make sure that their structures endure over time and retain stability by adhering to these guidelines, which also help them withstand external pressures and environmental factors.

Video on the topic

HOUSE MADE OF AERATED CONCRETE COVERED WITH BRICK

WHAT HAPPENS TO WALLS WITHOUT ARMORED BELT? IS AN ARMOR BELT NEEDED IN WALLS MADE OF AEROSIDE CONCRETE?

Construction of a house from aerated concrete. Continuation. Armobelt under the Mauerlat. Second floor overview.

Armopoyas: is it needed at all??

Armopoyas – is it needed at all?? / part 1 / House of No Problems

Mistakes when building a house from gas silicate.Armopoyas.

Armobelt made of brick and concrete