How many rods are in 14 fittings per ton. Specific weight of fittings of all diameters

Today we will talk about how much the reinforcement weighs, and about the maximum length of a metal rod. For the most part, how many meters per ton of reinforcement, but also about other diameters will also be considered.

Weight of reinforcement, how many meters in 1 ton?

During construction it is necessary to have an accurate idea of \u200b\u200bhow much weight the entire reinforced structure as a whole has. There are a number of reasons for this:

• This allows you to withstand reinforcement technology.
• It guarantees the necessary reliability of the design.
• It is more convenient to calculate the total cost of the structure.

The greatest attention is paid to a rod with a diameter of 12 mm, because this is the minimum value of the diameter that is allowed to be used when creating structures for the strip foundation. And of course, do not forget about the significant factor that during construction, it is very important to know exactly how many meters of reinforcement will be needed for one ton of planned production.

How much reinforcement weighs as well as the number of reinforcement per ton, table:

The weight of a meter of reinforcement is presented in the table of the ratio of diameter and weight of 1 m. Knowing the weight of reinforcing steel according to GOST 5781-82, you can estimate the reinforcement coefficient of the structure (the ratio of the mass of reinforcement to the volume of concrete) and determine how much material is needed per foundation (per cube of concrete)

Running meter of reinforcement - individual reinforcing bars of a smooth and periodic profile 1 meter long, the weight of which depends on the diameter of the reinforcing steel GOST 5781-82 (from a number of sizes of the diameter of periodic steel - 6, 8,10, 12, 14, 16, 18,20, 22, 25, 28, 32, 36, 40, 45, 50, 55, 60, 70, 80 mm).

Judging by this table, 1126 meters of reinforcement with a diameter of 12 mm make up one ton of the product.
From this table you can also find out the length of the reinforcement in one kilogram and its weight in one meter of all sizes.

These values \u200b\u200bwill be useful to you when using a metal rod directly, if, for example, you need to find out what is the mass of all the fittings used in the construction of a building. To do this, you only need to add up all the lengths of the reinforcing bars and then multiply the sum by the weight of 1 p / m.

It should be noted that 10 mm reinforcement still exists and is used when pouring foundations. But this is found only in the transverse, that is, in the auxiliary reinforcement. In addition to these factors, one should not forget that only those rods that have the symbol “C” in their markings are subject to welding.
This whole long process is necessary, since during construction it is necessary to know the length of the reinforcement, and when purchasing it, weight (weight) is important.

Diameters of fittings in accordance with GOST 5781-82

Do not forget that the number of rods per ton can vary, because this directly depends on their length. For example, rods 10 meters long will need much less than rods with the same diameter, but 2 m long.

If you need to find out the weight of a running meter of a pipe, fittings or other rolled products, the most convenient and simple solution is our metal calculator.

First you select the item on which you want to calculate meters per ton.

Next, you select the size of the product.

For the convenience of using the calculator, we have developed an interactive search bar that will facilitate the selection of product sizes

If it is round hire, then the diameters are presented in the list (reinforcement 10.12, etc., circle).

If you want to know the weight of the pipe, then pay attention to the wall thickness.

To find out the weight of the sheet, you need to select the thickness, and then the calculation of mass will occur per square meter.

Then in one of the fields data is entered in meters or tons

If you enter values \u200b\u200bin the “meters” field (“square meters” to find out the weight of the sheet), then you will know the total mass of the entire length (for example, the weight of the reinforcement).

If you are interested in calculating the length by weight, then you need to enter data in the "tons" field.

You can record and print the results.

Our calculator allows you to record the resulting calculations in a special field so that you can easily see your latest calculations. To do this, you need to click on the "Record" button, and the result of your calculations will appear in a special field.

Also, after you have calculated all the necessary data, you can click on the "Print" button and conveniently get a printout of the results.

You can compare prices for selected items from all suppliers.

To do this, write down your calculations. Please note that in the field with the recorded results there should be positions that are of interest to you. Next, click "Calculate the entire application online", and the system will transfer you to a page where the results of processing supplier prices will be displayed.

When knitting frames, nets, as well as during the construction of the foundation, the main element is reinforcement. As for private construction, here one of the most popular is metal rolling with a diameter of 12 millimeters. A favorable ratio of strength and affordable price allows the use of 12 mm reinforcement in the construction of a private house.

Why do you need to know the weight of metal? This value will be needed to estimate the cost of construction work at different stages. Typically, the weight is already calculated in the project for each design, which uses rolled metal A12, A3 or any other brand. If you plan to do the calculation of the building yourself or just want to understand this point in detail, then this material will answer all the questions. Having studied the article, the reader will be able to independently calculate and find out the weight of the reinforcement 12 mm, A3 or another brand.

The calculation is carried out in linear meters - special quantities commonly used in construction work. The table also shows the mass of one running meter. At the same time, the fittings are sold by weight, and not by length. The builder’s task is quite simple: find out how many meters will be needed for all structures, and then translate them into mass units. Below is a detailed and simple table that will help you find out the weight of one running meter.

In this table, you need to find the desired diameter (D), in this case it is 12 mm. The second column shows D - this data is not particularly needed, and translating 12 mm is quite simple (you need to divide 12 mm by 100, in the end it will be 0.12 m). The third column of the table is the most important - mass m per kg is indicated here. A metal rolling meter of 12 millimeters lead 0.888 kilograms. Also, for example, you can take rods of 10 mm, whose weight is 0.617 kg. The last column shows how many meters are in one ton.

Calculator

Self settlement

Now the reader knows how much one meter weighs. But in order to better understand the work, you need to understand the calculation scheme. Having understood the essence, the builder will be able to calculate the weight of one linear meter of rods with a diameter of 12 or 10 mm. To perform the calculation, you must proceed as follows:

The volume of one running meter can be obtained by the following formula: 1m x (0.785 xD xD) Here is the letter "D "denotes the diameter of the circle. The total mass is multiplied with the specific gravity of the rods; in all cases it will be 7850 kg / m3. To find out how much a meter weighs, you need to know the volume.

For example, you can independently calculate the mass of one meter of reinforcement 10 mm. The first step is to get the volume - 1m x (0.785 x 0.010 x 0.010) \u003d 0, 00010124 m3. The weight of the rods 10 mm is 00010124 m3 x 7850 \u003d 0.616 kg. If you look at the table, then one meter of reinforcement 10 weighs 0.617 kg. How much a meter of bars 14 or 16 weighs can be found by the same scheme.

The number of meters in one ton

Above shows the calculation for 10 mm. The number of meters per ton can also be calculated without using specialized tables. Here it is worth referring to building codes, which say that the tape base should have at least 0.1% rods in relation to the reinforced concrete structure. This wording looks rather complicated. To understand how this works, it is worth parsing an example:

1. A tape base is taken, the area of \u200b\u200bwhich is 2400 square cm.
2. Next, you need a coefficient, for this formula it is 0, 001.
3. The resulting volume is multiplied with a coefficient of 2400 x 0.001 \u003d 2.4 cm2.
4. At the next stages, reference information cannot be dispensed with. Here you will need a manual that indicates the required number of rods. For rebars with a diameter of 10 and 12 mm, two rods are sufficient.

What you need to know about A12 fittings

Rods are made of steel, the brand of which depends on the requirements for strength, wear and other parameters. Typically, builders choose low-alloy metal bars. This is not to say that this is the most reliable and durable steel, but at the same time it has an important advantage - low alloy metal can be processed using arc welding.

Grade A12, like rebar with a diameter of 10 mm, is usually used to give strength to a structure made of reinforced concrete. Also, these rods are the main element in the construction of frame structures. In addition to this parameter, you also need to pay attention to rental, it varies by class:

• Periodic profile - A3. Class A3 valves have transverse corrugation.
• Smooth profile - A1. Unlike A3, class A1 fittings are corrugated-free.

You can buy fittings, regardless of diameter or class A3, in coils or rods.

Reinforcement is called metal rods, rods or ropes of various shapes and cross-sections, designed for construction work in order to fasten specialized structures. Reinforcement is indispensable in the manufacture of any kind of devices made of reinforced concrete in order to enhance its strength. According to its characteristics, it is divided into strength classes and can be of various diameters, which affects the effectiveness of its use in reinforced concrete building structures. This article will help to answer the questions “How many meters per ton of reinforcement?” and "How much does a meter of reinforcement weigh?"

For labor costs in the production of rolled metal can be:

• light (with a diameter of up to 12 mm);
• heavy (with a diameter of 12 - 40 mm).

When the diameter of the steel rod is 12 mm, it is commonly called reinforcement 12 ( A12) is the most popular metal product in household construction.

In the process of manufacturing A12, GOST 5781–82 is strictly observed, and according to its purpose, it is classified into strained and non-strained. According to the choice of production technology, the following types of fittings 12 are distinguished:

• cold drawn;
• hot rolled.

Cold drawn A12 reinforcement is necessary for the manufacture of reinforced mesh, supplied in coils (riots) of 6-12 meters and is a reinforcing wire.

Hot rolled A12, being a high-quality type of metal rolling, is made of steel with a rounded section, finds its application in the reinforcement of stressed and conventional structures, gives sufficient strength to reinforced concrete structures and prevents damage during mechanical deformation.

Distinctive features of A12 fittings

This rolled metal products can be made of steel of various grades, which depends on its application and the requirements for its characteristics. Most often, products from low alloy structural steel are required. This is due to the fact that such products are easily subjected to arc welding.

The main purpose of A12 is hardening of reinforced concrete structures, as well as the formation of frame devices for resistance to heavy loads. The diameter of 12 mm is the minimum during the construction of the strip foundation and its grillages, if the reinforcement cage of four rods is knitted. Rental in the class happens:

• smooth profile (without corrugation) - class A1;
• periodic profile (with transverse corrugation at an angle to the axis of the rod) - class A3.

This construction metal rolling is presented from the manufacturer in rods or bays. The scope of its application is very wide. To equip the foundation, it is recommended to use hot-rolled reinforcement in the form of rods with oblique corrugation, the presence of which ensures optimal adhesion to concrete. This interaction of materials provides strength and durability of a reinforced concrete building structure. The transverse arrangement of reinforced rods in the foundation prevents cracking of concrete and reduces the power load on the resulting structure, and also protects it from deformation.

Advantages reinforcement A12that manifest themselves in construction:

• high degree of strength;
• relatively high ductility;
• minimal susceptibility to corrosion;
• high resistance to thermal, chemical and mechanical influences;
• the ability to create various configurations of structures by welding and by mechanical joints;
• possibility of use in stressed structures made of reinforced concrete.

In the market for building materials, there is currently a fairly large selection of steel grade. Recently, there has been a gradual transition, for example, Europe, to products from steel A500C instead of the previously popular A400. This fact, quite logically, is explained by the fact that with full preservation of the quality characteristics of rolled products, its cost in manufacturing decreases, due to the saving of raw materials during construction operations, up to 10%. For construction costing, this amount of expenses is simply colossal.

A feature of the production of rolled products from this steel grade is the absence of oxidation and, as a consequence, the absence of rust. At the same time, mechanical, chemical and thermal qualities remain at a very high level. The displacement of steel grade А400 with steel grade А500С allows to reduce its concentration during concreting and, as a result, consumption of reinforcement A12. The technical characteristics of the steel used do not allow welded seams of the finished structure to collapse. All this leads to an increase in the strength of ceilings, columns and walls of buildings.

Weight per meter of reinforcement 12

For construction work, it is customary to calculate the number of fittings in linear meters, but it is sold mainly by weight. It turns out that in order to buy the required amount of metal and know its cost exactly, you need to convert the calculated need for meters into units of weight, that is, kilograms, tons, etc. For this, you can use presented table. An alternative to the presented tabular data is an independent calculation of data, starting from the size of the diameter.

The weight of one meter of reinforced steel is shown in the table as diameter to weight ratio. Having information on the mass of reinforcing steel, it is possible to determine the coefficient of reinforcement of the structure (the ratio of the weight of metal to the volume of concrete).

In order to calculate the need for reinforcement, data will be required on how many linear meters one ton of rolled metal contains. The number of meters per ton is a quantity that depends on some factors. It is clearly seen from the table that the footage largely depends on the class of reinforcement.

How many meters per ton of reinforcement 12?

In accordance with building codes, the amount of reinforcement in the strip foundation as a percentage of the reinforced concrete element in the section should be at least 0.1%. For example, this is as follows. If sectional area of \u200b\u200bthe strip foundation is 100 * 240 \u003d 2400 cm square, then the estimated number of rolling rods for longitudinal reinforcement is found by multiplying the obtained foundation volume by 0.001, that is, 2400 * 0.001 \u003d 2.4 cm square.

Next, you should resort to the reference data of the table from the manual on reinforcing reinforced concrete elements of monolithic buildings. Since we are interested in reinforcement with a diameter of 12, it is obvious that for the calculated volume of the foundation, only 2 reinforced rods are needed. The calculation of the consumption of reinforced steel for a slab foundation is similar.

The answer to the question, how many meters of reinforcement in 1 ton, is of interest to both designers and builders. This information is needed to determine the mass and cost of the structure, as well as for the proper organization of work during the purchase and delivery to the construction site. This problem arises due to the fact that the results of strength calculations of bars are presented in meters, and in order to buy them, data in tons is needed.

Varieties

For foundations, reinforced concrete structures, gas-block houses, round and periodic steel is used. The latter has the form of cylindrical rods with transverse protrusions formed along a helical line and two longitudinal ribs. There is an option in which the right and left approaches are made on opposite sides of the rods to improve adhesion to concrete (used for high strength steels).

The main value by which the number of reinforcement is determined is its nominal diameter (d), regardless of whether the surface is smooth or with a different type of corrugation. According to the standards, the cross-sectional areas of the periodic profile (non-circular) and having the shape of a circle of the same diameter are identical. Consequently, their masses per meter are equal.

According to GOST 5781-82, hot-rolled is produced - A1000 (the letter A indicates the production method, and the number is the yield strength in MPa):

According to the standard 10884-94, thermomechanically hardened rods are made:

Calculation technology

Several methods are known for determining the number of linear meters of rods per ton (L):

• Using the formula for calculating body weight from a known volume and density (ρ): L \u003d (4 ∙ 1000) / (ρ ∙ π ∙ d 2) (1), where: ρ \u003d 7850 kg / m 3 is the density of rolled steel for theoretical calculations , d - taken in meters, 1 ton \u003d 1000 kg.

• Using data from relevant manufacturing standards.

The number of running meters in one ton is quite simple to find out: L \u003d 1000 / q, where q is the mass of 1 meter (kg / m).

Below is the number of meters of reinforcement per ton by this technique and expression (1).

According to the standard Р52544-2006, it is possible to produce numbers of profiles of reinforcing bars, the specific gravity of which is not indicated in the regulatory document (4.5; 5.5; 6.5; 7; 7.5; 8.5; 9; 9.5; 45 ; 50 mm). As can be seen from a comparison of the calculations by formula (1) and the data obtained on the basis of the specific gravity, the results are slightly different (discrepancies are 0.36-1.0%). To buy the required number of rods, with regard to sizes that are not included in the standard, an estimate according to formula (1) is quite acceptable, especially taking into account tolerances for the production of a ton of rolled metal.

In addition to theoretical methods, an empirical method is used to determine the number of meters of reinforcing products per ton by directly weighing them. This method is the most reliable, and its accuracy depends on the error of the used scales, for example, suspended crane.