For a structure to be strong and secure, it must have an armored belt. It gives the walls more strength, which guarantees stability and defense against a range of outside forces. Knowing the costs associated with building a new structure or repairing an old one is essential for efficient planning and budgeting.
The cost to create an armored belt is variable and usually expressed in terms of linear meters. You should budget around a specific amount per meter, though this amount is subject to change depending on a number of important variables. These variables include the materials chosen, the project’s complexity, and regional variations in labor costs.
The cost in its entirety is largely determined by the materials used. Although using premium concrete, steel reinforcing, and other required materials can raise costs, doing so guarantees long-term advantages and durability. The complexity of the building process, including the requirement for specialized labor or equipment, can also have an effect on the overall cost.
Labor cost disparities between regions are yet another crucial factor. An armored belt will cost more overall in places where the cost of skilled labor is higher. On the other hand, the cost might be lower in areas where labor costs are lower. You can make better decisions and more efficient use of your construction budget by being aware of these factors.
| Price per linear meter | Factors influencing cost |
| $50 – $100 | Materials, labor, design complexity, site conditions |
| $100 – $150 | Reinforcement type, concrete quality, location, contractor rates |
- What do filling prices depend on??
- Cost for work: manually and with a mixer
- How to determine the required amount of material?
- Calculation example
- Rules for drawing up estimates
- General expenses
- Video on the topic
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What do filling prices depend on??
Professional civil engineers typically calculate the cost of making a reinforced belt and are required to give the customer a detailed breakdown of costs for raw materials, work preparation, and direct implementation.
A technical and financial comparison of various options is performed during the calculations, for instance for various types of materials:
Additionally, the manner of execution
You can actually save money on the project in this situation.
An armored belt’s cost is mostly determined by its design.
Currently, a variety of technologies are employed in its production when building concrete block homes:
- monolithic reinforced concrete;
- brick;
- prefabricated U-shaped blocks with external insulation;
- homemade U-shaped blocks from 10 cm thick blocks on one side and 5 cm thick blocks on the other, as well as external insulation.
In reality, a different approach is employed, which is very cost-effective but not very well-liked because it requires a lot of personal labor.
Using a grinder, the standard block is independently transformed into a U-shaped one by removing the horizontal and vertical planes to the necessary sizes.
Furthermore, the kind of materials used will affect the price of the reinforced concrete block.
The following factors will determine the price of the most popular reinforced concrete belt model:
- volume and grade of concrete;
- size and brand of fittings;
- quantity of lumber for formwork:
- type and amount of insulation;
- cost of concrete work – manual or mechanical;
- cost of reinforcement work;
- cost of formwork work;
- cost of heat protection work;
- dismantling of formwork.
Overhead expenses, which account for between 10% and 15% of the total cost of the job, are related to:
- costs of organizing work;
- transport and loading and unloading costs;
- profit (not higher than 20%).
But if the contractor and the client agree, the latter number can be lowered considerably.
Before any work begins, the customer receives the final project estimate, which takes into account all of these indicators.
Cost for work: manually and with a mixer
Developers typically opt for armored belts made of reinforced concrete.
The most crucial step in the formation of an armored belt in a block wall building is pouring concrete mortar into the formwork.
It is simpler to accomplish this with ready-made concrete M200 or M250. Such a structure has enough strength to reinforce a house’s walls up to three stories high.
Bringing the concrete solution to the construction site in a mixer that is outfitted with a concrete pump is the most practical option.
The mixture is pumped straight to the completed formwork via a long hose after leaving the mixing tank.
Concrete pouring into formwork by hand requires a lot more labor, which raises the cost and lengthens the completion time.
The cost of building the armored belt will be greater overall if concreting is done at a temperature lower than + 5 C.
This is because, in addition to adding reagents to the composition for a greater effect, heating the concrete mixture will be required to achieve a normal hydration process.
To avoid solution heterogeneity and ruptures, the armored belt needs to be poured one at a time.
Using a mixer makes this task simple, but if you mix concrete by hand, you will need to schedule every step of the pouring process ahead of time in order to finish it in a single workday.
Following the pouring of the mixture into the formwork, a construction vibrator device is used to vibrate it.
This enables the release of all air formations, which, when the concrete thickens, creates cavities that weaken the armored belt’s strength properties.
The procedure is done very carefully to avoid touching the reinforcement frame with the device, as this could cause it to shift in place.
It will take some time for the monolith to acquire brand strength after the concrete solution is poured into the formwork structure. This usually takes 28 days, after which the ceiling installation starts.
Average rates for producing different types of armored belts per m.P.
| No | Cost with manual pouring of concrete, rub. 1 m 3 | Cost with manual pouring of concrete, rub. m.P. | Cost with pouring concrete with a mixer, rub. 1 m 3 | Cost with pouring concrete with a mixer, rub. m.P. | |
| 1 | Monolithic | 11000 | 1320 | 8100 | 972 |
| 2 | Brick | 1900 | 228 | ||
| 3 | U-blocks made of aerated concrete | 7500 | 900 |
How to determine the required amount of material?
You can start calculating building materials once the house’s design, plan dimensions, load-bearing wall types, height, and reinforced belt type have been decided upon.
The length of the internal and external load-bearing wall structures is the first piece of information that will be required to perform calculations; the house plan will show where to find this indicator.
The outside walls’ length is the same as the house’s perimeter. The internal ones’ length is measured using a ruler in accordance with the diagram or drawing, and the outcome is calculated while accounting for the document’s scale.
The drawing of the selected armored belt design indicates the width, which is typically equal to the wall’s width and height (between 300 and 400 mm is permitted per standard).
The concrete grade—M200/M250 is sufficient, per the standards—and the diameters of the reinforcement are next determined.
Transverse reinforcement is installed with a smaller diameter, from 8 to 12 mm, and longitudinal reinforcement, with a larger diameter, from 10 to 16 mm, according to SNIP.
It will also be crucial to understand how the transverse reinforcement is installed; typically, it is 300 mm.
Formwork-grade 2 and 3 lumber is available in standard lengths of 6 meters, widths of 150–200 mm, and thicknesses of 20–25 mm.
The thermal resistance calculation is used to choose the insulation; in the case of polystyrene foam, this indicator will be supplied in accordance with standard procedures, with a thickness of 50 mm in the southern regions and 100 mm in the northern regions.
Calculation example
A design calculation needs to be performed for a number of technological processes:
- pouring concrete mortar;
- creation of formwork;
- thermal insulation of the external wall;
- installation of reinforcement cage.
You can use the plan of an aerated concrete house measuring 10 by 10 meters as an example when calculating an armored belt.
First information needed for the calculation:
- Wall perimeter, 4×10=40m.
- Height of armored belt, 40 cm.
- Belt width, 30 cm.
- Concrete grade, M200 (B15).
- Number of fittings, 4 pcs.
- Diameter of longitudinal reinforcement d, 12 mm.
- Diameter of transverse reinforcement d1.8 mm.
- Pitch S, 300 mm.
- Board width, 150mm.
- Board length, 6000 mm.
- Board thickness, 20 mm
- Foam insulation, insulation thickness, 50 cm.
- Height, 40 cm.
- Insulator density, 35 kg/m 3 .
Calculation of materials needed to build block wall armored belts:
- External perimeter of the armored belt, 40 m.
- Total casting length, 38.8 m.
- External side area: 0.4×40=16 m2.
- Concrete volume 0.4×0, 3×38.8=4.7 m 3 .
- Specific gravity of concrete – 2362 kg/m3 .
- Concrete weight 4.7x 2362 11.10 t.
- Load on soil from foundation 0.094 kg/cm 2 .
- Total length of armored belt, 40m.
- The volume of concrete is 40X0.4×0.3= 4.8 m 3 .
- The total length of working reinforcement D 12 mm is equal to: 40×4 = 160 m.
- Total weight of reinforcement D 12 mm, 142.00 kg.
- Number of clamps D 8 mm, 133 pcs.
- The total length of the clamps D 8 mm is: 133x 2(0.4+0.3) =186.2 m.
- Total weight of reinforcement D 8 mm, 72 kg.
- Maximum gap between formwork supports with a board thickness of 20 mm, 0.4 m.
- Number of boards 150 x 20 x 6000 mm: 2x 400/150×40/6 = 36 pcs.
- Volume of lumber for formwork: 36 x 0.150×0.02×6 = 0.65 m3 .
- Amount of polystyrene foam insulation (PPS): 40×0.4×0.5=0.8 m3 .
- Total insulation area: 40×0.4= 16 m2 .
- Approximate number of dowels “fungi” – 96 pcs.
The cost of creating an armored belt, a crucial structural element in building, varies per linear meter. The type and quality of materials used, the intricacy of the design, and labor costs in the area are some of the factors that usually affect price ranges. Regional pricing variations and transportation costs can also have a big effect on the total cost. Comprehending these variables aids in precisely projecting the necessary budget for this essential reinforcing component in construction projects.
Rules for drawing up estimates
An estimate is a crucial component of a construction contract that must be completed and is a required financial document.
The original document is regarded as the local estimates. They are created using the armored belt drawings, diagrams, and actual volumes of planned work.
In this instance, the data is divided into distinct categories of work, each of which needs to match the technological order and account for the unique characteristics of the item.
Direct costs are defined as the sum that is derived from the estimate. They are assessed a percentage of profits and overhead.
Compiling such a document can be done with specialized software, Windows Excel, or a personal computer.
Put the following data into the database for the program:
- list of works;
- their volumes;
- price;
- types of building materials;
- usage standards.
When there is a large construction site, the estimate is broken down into multiple phases for the practicality of control and reconciliation between the contractor and the client.
As a result, the computation will be done in phases in accordance with their execution.
The estimate accounts for overhead expenses, which include an additional profit of no more than 20% and administrative and transportation costs that range from 10% to 15% of the total amount.
General expenses
Work and materials table for estimating the cost of pouring an armored belt for a home built of 10×10 aerated blocks
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Materials
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One of the most important steps in strengthening a building’s structural integrity is to create an armored belt. The type of materials used, the intricacy of the project, and variations in regional prices are some of the factors that can cause a significant variation in the cost per linear meter. Building an armored belt can cost anywhere from $50 to $150 per linear meter on average. This range is mostly determined by the kind and caliber of steel reinforcing, the concrete’s grade, and the particular specifications of the building plan.
The kind of steel used for reinforcement is one of the primary factors affecting the price. Although it costs more, high-grade steel is stronger and more durable. The price may also vary depending on the concrete’s thickness and quality. Although more expensive, higher-quality concrete with additives for greater durability will perform better over time. Labor costs are another important factor to consider. Complex designs or difficult site conditions may call for more skilled labor, which will raise the total cost.
Regional differences in labor and material costs may also have an impact on the final cost. The cost per linear meter will be greater in regions with higher construction material costs or shortages of skilled labor. On the other hand, prices may be cheaper in areas where labor and materials are easily accessible. Getting comprehensive quotes from nearby contractors is crucial if you want an estimate that is accurate and customized to your project’s needs.
In conclusion, it is possible to estimate the base cost of making an armored belt, but the actual cost will vary depending on a number of variables such as labor costs, material quality, and regional variations. Planning carefully and consulting with knowledgeable experts can help you control these expenses while maintaining the long-term viability and structural safety of your building. You can make well-informed decisions that strike a compromise between financial restraints and the requirement for a sturdy and dependable armored belt by being aware of these factors.
