Reinforcement mesh weight. How the reinforcement mesh is calculated during the construction of various objects Construction mesh calculator

Reinforcement mesh weight

The concrete casting used to create the foundations is itself a fairly solid structure. However, its strength is great only in one direction - namely, concrete resists pressure well.

But the concrete foundations can be affected by loads in other directions. For example, it can be influenced by bending, twisting, and so on. The soil is a heterogeneous substance and, when frozen, can change its structure and volume, expanding in different directions. In order to give the concrete casting strength and resistance to impact in any direction, a metal power frame is introduced into the body of the concrete casting.

The metal frame in concrete castings is used not only in the construction of foundations. It is also created during other concrete work, for example, when building stairs or when creating a leveling cement-sand screed.

The metal frame of a concrete casting can be created in various ways. So, a lattice frame can be created from metal rods that are connected to each other at intersections. The rods can be fixed with knitting wire, clamps or electric welding.

An excellent solution when forming a metal frame can be the use of a reinforcing mesh.

Reinforcing mesh. Characteristics and examples of use

Reinforcing mesh is formed from metal wire or from reinforcing rods of a larger cross-section in industrial production. This achieves the accuracy of the grid spacing, which has a positive effect on the overall quality of the reinforced concrete structure.

In the process of its manufacture, wire sections or reinforcing bars are laid out with a certain step, and then at the intersections they are fixed by electric spot welding.

Reinforcement mesh is widely used in the construction industry, both for exterior and foundation work, and for interior interior work. Layed in several horizontal layers in the foundation and connected by vertical bridges - the reinforcing mesh becomes an excellent load-bearing frame for reinforced concrete casting. Reinforcement mesh, laid in one layer on the floor surface, can become the basis for a floor screed or for fastening a system of underfloor heating with a liquid heat carrier. In addition, complex, strong reinforced concrete structures, for example, entrance stairs, can be formed using reinforcement mesh.

Reinforcement mesh - photo

Reinforcement mesh types

Reinforcement meshes can be classified according to several parameters. First of all, the reinforcement mesh can be divided into types based on the thickness of the source material used:

If the reinforcing mesh is made of a relatively thin metal wire, then it is conventionally called "thin"
In the event that the reinforcing mesh is made of a thick metal bar, then it can be conventionally called "thick".

In addition, the mesh can be produced with varying degrees of precision.

Ordinary welding accuracy, which is quite suitable for outdoor construction work, and reinforcing mesh with increased accuracy can stand out. The accuracy of welding of reinforcing mesh elements is indicated by numbers after the letter "P" in the marking.

Reinforcement mesh sample

Separately, it should be said about the form in which the reinforcing mesh is supplied from industrial enterprises. Depending on the thickness of the elements used, the mesh can be supplied from the factory in the form of flat plates or in the form of rolls.

In addition, depending on the purpose, the reinforcing mesh can be produced with various mesh configurations. They can be rectangular or square.

Reinforcement mesh sheets

Features of the use of reinforcing mesh

Reinforcement mesh can significantly reduce construction time using concrete castings.

With the classical method of forming a power frame, it is created from separate metal rods. At the same time, the creation of a spatial frame seems to be a rather difficult task. Each point of intersection of the reinforcing bars must be held together.

The fixation of the intersection of the reinforcing rods can be done using knitting wire loops. It folds in half, wraps around the intersection and twists using a pointed hook or special automatic devices.

Naturally, such a fixation can take a lot of time and effort. Therefore, in a number of cases, when carrying out foundation and general construction work, it is advisable to use a ready-made reinforcing mesh.

Calculating the weight of the reinforcement mesh

Calculating the weight of a reinforcing mesh can be useful for you to determine the total weight of a building structure, and for calculating logistics - that is, ways of delivering building materials to the construction site of the building.
To calculate the weight of the reinforcement mesh First of all, it is necessary to know the diameter of the used metal rod or wire, the pitch between the wire or rods and the configuration of the cells.
So, the step between the wire or rods can be from 5 to 25 centimeters. When creating a reinforcing mesh, both a wire with a diameter of 3 millimeters and a reinforcing metal bar with a diameter of up to 12 millimeters can be used.
Mesh labels use standard notation to help you calculate the weight of the reinforcement mesh.
So, if the reinforcement mesh is marked "150x150x5", then this means that this product has a square cell of 15 by 15 centimeters and is made of wire 5 millimeters thick.
In order to calculate the weight of the reinforcing mesh, you can use the table given in our article.

Reinforcement mesh weight calculation table

Please note that different manufacturers may use custom mesh sizes. In this case, it is necessary to calculate its weight individually, using special formulas. A good solution would be to use mathematical spreadsheets for this calculation.

In addition, the mesh can be produced with various coatings. For example, a number of enterprises produce galvanized reinforcing mesh. This mesh has an incomparably longer service life and can be used for outdoor finishing work. For example, to create fences or railings.

Reinforcement mesh weight
Learn more about how to determine - the weight of the reinforcement mesh, and the calculator will help you calculate.

Steel mesh is most often used to reinforce various structures. It is made from a metal thread of different diameters, it can have additional protection against corrosion. The low specific weight of the reinforcing mesh simplifies its installation and transportation.

The quality of this product

The characteristics of welded meshes depend on their purpose:

masonry and road;
strengthening of thermal insulation and glass.

Use low carbon wire. Rods of different lengths are welded by resistance spot welding. Corrosion protection is carried out by polymer coating or galvanizing, which is carried out in several ways:

galvanizing rods before welding;
electrolytic method;
hot coating.

Reinforcement without a galvanized layer is called light.

On the welded mesh for glass, thermal insulation, corrugation is applied from 1 or 2 layers.

Characteristics of welded metal products, according to technical conditions 14-4-1284-84

The mass is calculated depending on the size of the cell, the distance between the axes of the wire, the presence of galvanized:

Tables for converting grid area to mass

Reinforcing metal products are used for the following purposes:

reinforcement of reinforced concrete products;
strengthening of the banks;
roadway reinforcement;
in the household (making a fence for poultry);
fencing of territories.

The mass of 1 square meter of metal products depends on the length, width of the cells, cross-sectional area of the bar, and the specific gravity of the material. The bar size Ø ranges from 0.5 to 8 mm.

Form of release of products from welded fittings:

rolls;
cards;
panels.

The dimensions of the reinforcement mesh depend on the form of release. Products in cards reach a length of 6 m. The maximum width is 2 m, the minimum is 35 cm. Two-meter panels have a width of 2.5 m. Rolls are produced with a width of 0.2–2 m and a length of 15–118 m.

The sizes of the windows depend on the purpose, there are 6 * 6–20 * 20 cm. There are rectangular ones with different dimensions.

Standard TU 14-4-1284-88

Products according to these specifications are manufactured with square and rectangular windows.

From a light, with a large cell size, cages are built to keep birds and fur-bearing animals. It is used to strengthen reinforced concrete structures, making them stronger. But for this, the metal mesh must be of high quality. You should not use a product in which the welding points are located not at each point of contact of the rods, but through one. This technology significantly reduces quality. This can affect safety.

Welded fittings, according to specifications 14-4-184-93

The mass of 1 square meter of metal with the same rod thickness will be the greater, the smaller the cell wall size:

Parameters in centimeters	Metallic thread type	Weight 1 sq. meters in grams
1,6*2,4	WITH	2480
1,6*4,8	WITH	1990
2,4*2,4	WITH	1970
2,4*4,8	WITH	1500
3,2*4,8	WITH	1250
1,6*2,4	O	2810
2,4*2,4	O	2220
1,6*4,8	O	2240
2,4*4,8	O	1710
3,2*4,8	O	1410

Note:

WITH- light type.
O- galvanized type.

For construction work, rods with a diameter of 0.6, 0.8 and 1 cm are used. The higher the load on the structure, the stronger the mesh should be, the larger the wire diameter.

The size of the cell depends on the material to be strengthened. To fix the brick structure, a wall length of 5 cm is sufficient.For a cement screed, these indicators will not be enough, you need to use a smaller markup.

ВР-1 metal products from В500С fittings

Calculations were made for cutting 2000 * 6000 mm:

Reinforcement products are used as a base for marble masonry. It makes the structure stronger, more durable, and prevents the formation of cracks.

For fencing plots, it is advisable to take galvanized products that are not susceptible to weather factors, therefore, they are much more durable and have a better appearance.

Comparison table of class B500C with reinforcing bars of other classes

You can find out the mass of 1 meter of metal products from reinforcement using the formula 0.785d 2, where d is the diameter of the metal thread, 7850 is the specific weight of the wire in kg / m 3.

In order to significantly increase the strength of monolithic concrete structures, a special reinforcing mesh is used. In order to correctly perform all the necessary installation operations, you will need to know how to calculate the reinforcement mesh. If you do not know the weight of the material, its length and the value of the magnitude of the loads that the structure can withstand, you will never be able to perform the correct reinforcement.

Improper reinforcement of reinforced concrete structures can lead to serious consequences. Cracks will appear, the service life will be significantly reduced, sometimes this can lead to the destruction of a building or structure.

In this article, we will analyze in detail all the issues related to calculations and selection of the necessary material for the construction of various objects.

First, you need to figure out why the procedure for reinforcing reinforced concrete structures for various purposes is performed at all. First of all, this is necessary in order to make the building object more durable and monolithic. The mesh will pull the concrete together, thereby increasing the rigidity. This will allow it to withstand heavy loads, and will also increase the service life.

The reinforcement procedure is quite complex and requires high precision. Therefore, before starting to strengthen concrete structures, it will be necessary to perform all the necessary calculations of the main indicators and characteristics. This will help not only to choose the right material, but also significantly save money. You will know exactly how many matching products to purchase.

Various building structures (floors, floors, walls, supports, slabs, etc.) require reinforcement. Depending on this, a specific reinforcement scheme is selected. This scheme includes a number of rules and basic provisions, in accordance with which the installation and assembly of the metal mesh will be carried out. Accordingly, the calculations of the main parameters will be performed in different ways.

How to calculate a reinforcing mesh - basic parameters for the calculation

You will need to define the following parameters:

The exact amount of mesh reinforcement;
The total weight (weight) of the required products;
The principle of laying the mesh;
Load-bearing capacity and maximum permissible external loads.

If it is required to strengthen the foundation of a building, then in this case there must be both a longitudinal and a transverse reinforcing layer, which are laid at a certain distance from each other. The mesh has standard dimensions, which are not always sufficient to cover the entire base area. Therefore, several products have to be connected, as a result of which joints appear. For high-quality connection of joints, steel wire is used.

If the interfloor floor is reinforced, then it will be enough to lay two layers here, and connect them in a strictly parallel position using high-quality wire. In the case of building walls or strip-type foundations, the reinforcing frame can consist of three layers. When reinforcing columns and supports of various types, the frame is laid and connected in a round or rectangular position.

Cell size, mm	Cut, m	Weight m 2, kg.
1001004	2*6	1.84
1501504	2*6	1.22
2002004	2*6	0.92
1001005	2*6	2.88
1501505	2*6	1.92
2002005	2*6	1.44
1001006	2*6	4.44
1501506	2*6	2.96
2002006	2*6	2.22
1001008	2*6	7.9
1501508	2*6	5.26
2002008	2*6	3.95
10010010	2*6	12.34
15015010	2*6	12.38
20020010	2*6	6.19
10010012	2*6	17.8
15015012	2*6	11.84
20020012	2*6	8,88

6 parameters to consider when choosing a mesh

Determination of the main characteristics will help not only to calculate your costs, but also to understand which products are best suited for each specific case. The metal mesh is selected depending on the reinforcement scheme and the characteristics of the building object.

There are six main parameters to consider when choosing a mesh:

The diameter of the steel bars from which the product is made;
Corresponding product class;
Limit load values;
Product weight and length;
The specific place of installation and the shape of the reinforced concrete structure;
Product price.

The diameter of the rods will be one of the most important indicators that you should pay attention to in the first place. The number of perceived loads will depend on this indicator, and, consequently, the strength of the structure. The thicker the mesh rods are, the more loads it can withstand. The diameter will affect other parameters as well. For example, the larger it is, the more weight and price will be.

To strengthen heavily loaded slabs and bases, products with a bar thickness of 13 to 30 millimeters are used. Elements of buildings or structures that are not exposed to large effects of external forces can be reinforced with a mesh with a diameter of rods from 8 to 12 millimeters. In some cases, combined options are used, when a mesh with different thicknesses is used in one reinforced concrete structure.

How to calculate a reinforcing mesh

Reinforcement mesh calculation is divided into two main stages. At the first stage, the calculation of the loads that will act is carried out, and at the second stage, it is determined how much production is needed.

Determining the loads will help you understand how much weight the finished structure can withstand, as well as what forces and in what places will affect. Based on the data obtained, a mesh of the appropriate size is selected. Only after that, you can begin to determine the required number of metal products.

The first stage of calculations is quite complex and requires professional skills and knowledge. Here special formulas are applied taking into account many additional coefficients. If you do not have sufficient knowledge, then it is best to entrust this work to trained specialists. When erecting large buildings or structures for various purposes, all the necessary calculations are performed at the design stage.

Calculation of the required amount of material

After all the necessary indicators of the future reinforcing frame have been determined at the first stage, you can begin to determine the required amount of material. There is nothing complicated here, all you need is an ordinary calculator and a piece of paper. Knowing the geometric dimensions of the frame and the standard dimensions of the mesh sheets that are sold, you can calculate the required amount of material.

With the result obtained, you can already go to the seller and order the amount that is necessary for the manufacture of a reinforced concrete structure. In this case, you will never have extra fittings, plus you will save a little on this.

Reinforcement mesh calculation table:

1 meter reinforcement = 1 m x (0.785 x L x D)
The area in brackets is the area of the circle. D - diameter.
Specific gravity = 7850 kg / m³

If you want to get the weight, then you need to multiply the volume by the specific gravity.

Example

We consider the volume: 1 mx (0.785 x 0.012 mx 0.012 m) = 0.00011304 m³

We calculate the weight: 0.00011304 m3 x 7850 kg / m³ = 0.887 kg

How and for what purpose the weight calculation is performed

Determination of the mesh weight for reinforcement is performed in order to understand how much the finished building object will weigh. This parameter will also be very important when choosing the methods of delivery of products to the construction site.

First, you need to find out the diameter of the rods from which the mesh is made and the geometric dimensions of the cells. There are special tables in which the weight of the product is indicated depending on the above parameters.

If an individual order was made for the manufacture of a mesh of non-standard sizes, then you will not be able to calculate the weight of these products according to the table, because it takes into account only standard sizes. In this case, it will be necessary to use special formulas for the calculation. If you do not want to do this on your own, you can delegate the task to experienced professionals who will calculate everything in a short time.

What is a selection calculator

On the Internet, you can find various online calculators that help you determine all the necessary parameters in a few clicks. These are specially programmed algorithms. For the calculation, you will need to specify the basic parameters, and the program will give you the result.

There are two types of calculators. The first type helps to determine the load, and the second - to calculate the weight and cost of rolled metal. The load calculator provides only a general idea, but not exact data. Therefore, you cannot use it to compose a project. The exact values of the loads should be calculated only by experienced people and using special formulas and algorithms.

You can use the weight and price calculator to the fullest. He gives out fairly accurate indicators. The program has several fields to fill out. In them, we indicate the thickness of the rods, the size of the cells and the cost of one ton of specific products. If structures of a rather complex shape have to be reinforced, then the mesh will have to be cut. In this case, the additional percentage must be taken into account. In most cases, this is no more than 5 percent.

After you have filled in all the fields, click on the calculation button, and the calculator will give you a reading of the weight of the material and the total cost. It is very easy to find such programs on the Internet, you just need to enter the corresponding query into the search box.

For high-quality strengthening of various reinforced concrete structures (floors, floors, slabs, blocks, supports, bridges, etc.), you need to know how to calculate the reinforcement mesh. This procedure consists of several steps that must be followed sequentially. We have discussed each of these stages in detail in the article.