Reinforced concrete rings for wells: types, marking, production nuances + the best offers on the market

Nikolay Fedorenko
Checked by a specialist: Nikolay Fedorenko
Author: Natalya Listyeva
Last update: May 2019

Reinforced concrete rings are used in the construction of functional and revision points of underground engineering systems. They are used in the arrangement of water and sewer wells of various categories and purposes. In order to correctly select reinforced concrete products, you need to know the operational characteristics.

We will talk about the physical, mechanical and practical qualities of reinforced concrete rings for wells. In the article we have proposed, recommendations are given for selection, the specifics of marking are analyzed. The rating of responsible manufacturers offering certified products is presented.

General description of reinforced concrete rings

The principle of production of reinforced concrete rings is regulated GOST 8020-2016. Designation, size and marking explains GOST 8020-90.

A well ring is a monolithic structure that is shaped like a hollow cylinder. It is made from heavy concrete mixtures of the bulk type, various fractions of crushed stone, sand and specific chemical additives.

Reinforced with a metal bar and wire to acquire the following characteristics:

  • increase tensile strength;
  • reinforcement of base strength;
  • increase resistance to compression during operation.

It is used in industrial construction to create collectors, water supply, sewer and gas pipelines. It is used for laying underground cable, electric and telephone networks.

In the private sector reinforced concrete rings use:

In the presence of quality waterproofing provides complete tightness of vertical shafts and horizontal highways. It does not need regular maintenance and does not lose its specific qualities and strength characteristics over time.

Installation of a well from reinforced concrete rings
Reinforced concrete rings take a little time to install a communication system. This aspect makes the products especially attractive in the eyes of wholesale customers and individuals involved in arranging comfortable living conditions in their own homes and household plots.

Varieties of reinforced concrete modules

The simplest standard models are made without additional fasteners. Their butt resembles a smooth, even rim both above and below.

When laying, they are placed one on top of the other and fastened with metal brackets. The joint area is covered with cement mortar or a dry repair mixture.

Water seal for well rings
As a sealant for well rings, a water seal can be used. The material consists of special grade cement and quartz sand. It solidifies quickly and expands over time. Protects the reinforced concrete line from sewage

After such processing, the system acquires optimal integrity and tightness. Correct insulation in the contact area of ​​concrete elements extends the mine life and almost completely eliminates the leakage of water through the gaps between the concrete elements.

Masters mount a well
Despite reliability and durability, standard rings without a lock are suitable for installation in regions with weak seismic activity. Strong displacement of the soil can lead to displacement of the modules and cracking of cement in the joint area

Euro rings are available with a practical milling lock. In the upper part of such products, protrusions are located, and in the lower part there are deep notches.

During installation, the elements are inserted into each other, thus providing a monolithic and strong connection that does not require additional processing in the docking area.

Reinforced concrete ring mounting with flanges
When purchasing well rings with an end lock, you should carefully monitor their quality. Poorly cast docking parts will complicate the job and require the use of diamond cutting to eliminate errors and deficiencies

This facilitates and accelerates the process of creating a communication system and reduces the overall financial costs of the project. A well shaft made of Euro rings with a lock is not afraid of seismic activity with shifts and maintains structural integrity even on very unstable soils prone to subsidence.

A monolithic glass is a one-piece design of an ordinary ring and bottom. It is used in places with increased requirements for tightness, for example, for sewer tanks. Provides a high level of protection of the surrounding soil and does not allow the contents of the well to seep into the ground or fall into groundwater.

Marking and manufacturing process

The whole process of making rings for wells is clearly regulated by individual laws and specifications. GOST 10180 describes in detail the quality and strength characteristics of the concrete mix suitable for the production of modules.

Installation of reinforced concrete rings
Well rings made of concrete cannot be installed in areas with seismic activity of more than 8 points and in permafrost regions. For such difficult operating conditions, slightly different structural and technical options and solutions are required.

Standard 10060 defines the requirements for frost resistance of the material. The required level of water resistance reflects the document 12730. Deviations from the norms are allowed in minimum fractions of percent and only for certain parameters.

Technological features of factory manufacturing

For the production of a well ring, a professional concrete mixer, automatic vibroform and a crane-beam, designed to work with loads weighing from 1 to 2 tons, are required.

A special concrete mixture is used as raw material. It includes:

  • fresh cement free with a good rate of curing;
  • coarse sand with crushing in 2.0-2.3 Mkr (preferably without or with a minimal presence of clay lumps and dust particles);
  • crushed stone fraction of 5-10 mm, but not more than 5-20 mm;
  • process water without impurities;
  • superplasticizer.

All components in a certain proportion are placed in special equipment. It thoroughly kneads the composition, giving it a uniform, flowing consistency without lumps and clots.

Industrial concrete mixer
Industrial concrete mixers are equipped with a three-phase motor, they work quickly, have high power and produce a large batch of concrete mix in one cycle

At the next stage, reinforcing elements of steel wire with a diameter of 8-12 mm are placed in the molding container (formwork). This frame gives the ring extra strength and provides good resistance to compression / tension during operation.

On the opposite sides of the structure are two vertical rods. They serve as ears and facilitate subsequent removal of the ring from the mold.

Then, the prepared cement composition is poured into the formwork and automatic vibration is activated. During processing, all voids are uniformly filled, and concrete acquires the necessary integrity and density.

After a day, the product is removed from the vibration form and moved to an open area for standing. After a week, the ring gains about 50% of its base strength, and becomes fully usable after 28 days.

How are products labeled?

All reinforced concrete products are marked with an alphanumeric abbreviation generally accepted in the state. This allows you to quickly determine the size and scope of each individual item upon purchase.

Letter combinations are deciphered as follows:

  • The cop - wall ring available for placement in confined spaces;
  • Klk - module for creating drainage networks and local storm sewer systems;
  • KO - fundamental support, ensuring the stability of the position of the well base;
  • KFK - fragments for arrangement of collector networks and drainage communications;
  • CVG - products for the installation of water wells and gas pipelines.

The numbers next to the letters indicate the height, thickness, specific gravity and inner diameter of the ring. Understanding these values, acquiring suitable reinforced concrete products is not difficult.

Ring Labeling Examples
Before buying rings, you need to determine their size, as well as select additional equipment for installation - support, bottom, overlap

Additional elements for wells

Regardless of the purpose of the well, it will not be possible to manage with some rings alone during installation.

In order for the whole system to function correctly in the future and not to malfunction, the following elements will certainly be needed:

  1. Grassroots plates (bottoms) - fit into the base of the structure, level the base surface and give stability to the entire well shaft.
  2. Supporting floors - represent a concrete circle with a hole closing with a standard manhole cover. They take over and evenly distribute the external load on the surface. Ensure the safety of the entire well and protect it from collapse and cracking.
  3. Additional rings - have a standard diameter, but a smaller thickness. Designed to raise the current well height to a higher level.
  4. Well hatches (covers) - are issued in the form of the correct circle. Depending on operating conditions, they are divided into sidewalk and main lines.They are characterized by high strength and good resistance to intense loads.

The presence of additional accessories ensures complete tightness of the system, prevents the penetration of wastewater into the network, protects pipes from freezing in the winter period and extends the service life of communications.

Base plates for a well
To equip and protect the well from destruction, you need a base plate. For use in private construction, a product that can withstand a load of up to 1,000 tons is suitable. At industrial facilities, highways and streets with heavy traffic, reinforced modules that are not afraid of the current pressure of 1550 tons will show themselves better

All additional elements must be selected, focusing on the conditions in which the system will be operated. This approach allows you to create a stable, tight network with a large working resource.

Advantages and disadvantages of reinforced concrete products

Well rings made of reinforced concrete are very popular and are included in the list of the most popular building materials. This is due to their specific physical and structural characteristics.

The main advantages of the products include:

  • Prolonged operational period. Reinforced concrete with steel wire is neutral to any medium, including aggressive ones, and, according to the manufacturers, can last at least 100 years.
  • Preservation of rigidity and structural integrity on active soils. Wells made of reinforced concrete rings are mounted even in zones with seismic activity up to 8 points.
  • Wide range. Products are available in a variety of sizes. This makes it possible to select suitable reinforced concrete products for any purpose and need.
  • Pronounced frost resistance. It provides a strong connection between the reinforcing elements and the concrete mixture that occurs after the final drying of the workpiece.
  • High tightness. The seams fit tightly together at the junction and prevent the penetration of groundwater and other foreign substances or materials.

Finished products are sold at the best price and are suitable for arranging communication networks of any scale.

A crack in the well of rings
During the production of a well from reinforced concrete rings, it is necessary to strictly adhere to the installation rules. Incorrect installation will lead to an uneven load on the walls and in the future will provoke the appearance of cracks in the entire line

The disadvantages are the weight and dimensions of the product. For transportation and installation, professional equipment of good power and a team of craftsmen are required.

This inevitably entails additional material costs and an increase in the total cost of installation work.

Reinforced concrete rings for the device of a small well in the country can be made with your own hands. Home-made technology is described in detail in next article, which we highly recommend reading.

TOP 10 best manufacturers of Russia

In the Russian Federation, about 250 different enterprises are professionally engaged in the manufacture of reinforced concrete rings and other components for wells. We offer a closer look at the 10 most important and responsible manufacturers.

No. 1 - Kirovsky factory of reinforced concrete products

The Kirov factory of reinforced concrete products occupies a leading position in the production of reinforced concrete products in the Volga region. In addition to well rings and related parts, the company manufactures about 2,000 types of products for civil engineering and the construction of engineering structures.

Reinforced concrete rings in the open area of ​​the plant
Kirov Plant has large-scale production facilities and the ability to produce annually up to 150,000 cubic meters of precast concrete structures of different nomenclature

No. 2 - Combine reinforced concrete products 24/7

This plant is located in the Moscow region. Since 2004, produces high-quality well rings and other reinforced concrete elements.It clearly maintains the 28-day cycle of the formation of finished products.

To increase the strength characteristics, it reinforces products with corrugated steel wire. Adds plasticizers to the working mixture to give elasticity.

Constantly improves the production process and introduces its own innovative developments aimed at improving the physical and mechanical properties of products.

No. 3 - Factory of industrial building parts

This plant in Surgut has been manufacturing ZhBK for more than 45 years. It has a laboratory accredited by Gosstroy for multi-stage product quality control. It supplies reinforced concrete structures for many industrial sectors, including oil and gas.

Internal equipment is modernized and meets modern production standards. The concrete mixing unit has been completely reconstructed, the metalform park has been updated, and a plasma cutting machine was purchased at the rebar shop.

This makes it possible to produce prefabricated reinforced concrete products in large volumes that meet the standards and requirements of GOST.

No. 4 - Monolith Stroy Group

The Monolith Stroy group near Moscow has been engaged in the production, sale and delivery of concrete mixtures and reinforced concrete structures for various purposes since 2007. The assortment of the company has multi-diameter rings, bottoms and plates for creating wells.

All products are certified and sold at the best price. In addition, the company provides customers with bonuses, discounts and preferential terms for bulk purchases, while simultaneously delivering goods promptly to the facility under construction.

Reinforced concrete rings in a factory warehouse
The company Monolith Stroy has a reputation of a reliable supplier and takes on orders of any complexity. For work at the enterprise, concrete of the M100-M550 brand is used. This makes it possible to produce products with optimal physical and operational characteristics.

No. 5 - Tambov Reinforced Concrete Plant

The Tambov Plant, which at the end of 1992 became a joint-stock company, plays a significant role in the market of reinforced concrete structures. Over the entire period of its existence, the enterprise has never stopped its activities and even in times of crisis it worked with a profitability of at least 15%.

Now the manufacturer spends the main profit on the internal re-equipment of the shops, the acquisition of high-quality raw materials and the improvement of the general staff qualifications. Delivery times are never violated, and all obligations to shareholders are fulfilled without delay.

№6 - LLC Terem

Since 1998 Terem LLC has been manufacturing reinforced concrete structures and is considered one of the largest enterprises in the Krasnodar Territory. Workshops are equipped with high-tech equipment, allowing to produce not only standard, but also non-standard products with good strength and physical characteristics.

Ring making equipment
The Terem factory has installed advanced SchlosserPfeiffer equipment, which allows the production of well rings from heavy concrete by means of semi-dry vibropressing. Finished products are manufactured in different sizes and are used to organize communication systems in residential and industrial construction.

No. 7 - Reinforced Concrete Products Kipensky Plant

The Kipensky concrete goods plant located in the Leningrad Region has been operating in the construction materials market since 2005. For wholesale and retail customers offers prefabricated structures for various purposes. The production process at all stages is controlled by leading process engineers.

The modern concrete mixing plant at the disposal of the enterprise allows producing an increased volume of products without compromising their quality. The finished product in all respects meets the requirements of GOST and is distinguished by reliability, resistance to aggressive environments and durability.

No. 8 - Plant for the production of building materials

The plant for the production of building materials in Stavropol is a powerful high-tech enterprise with innovative Spanish equipment.

In the workshops installed:

  • Compacta line for manufacturing products by vibrocompression;
  • new generation Tensyland forming machine;
  • progressive device for creating well rings and related concrete elements.

This allows you to efficiently and quickly fulfill not only standard, but also very large orders for concrete products.

Masters make concrete mixes
For the manufacture of well rings SKSM uses bulk concrete of the best grades. The plant supplies finished products not only in the Stavropol Territory, but also in all federal districts of Russia

No. 9 - Dmitrov Plant of MZhBK

The Dmitrov plant MZhBK has been producing reinforced concrete products for various purposes since 1952. Successfully produces not only typical products, but also specific structural elements according to the technical specifications of the customer.

He has an impeccable reputation in business and industrial circles. Collaborates with major state-level customers and supplies products for strategic facilities. Delivery of goods is carried out on highways and railways.

No. 10 - Gurovsky plant of concrete goods

The Gurovsky plant of reinforced concrete products is the largest manufacturer and supplier of precast concrete products in the Central region of Russia. Strictly complies with the requirements of current specifications and state standards.

In his own research laboratory, he conducts research activities on batches of manufactured goods and tests progressive innovations that improve the physical and mechanical properties of rings for wells and other products.

All of the above enterprises produce large volumes of reinforced concrete structures, have certificates of conformity and are considered reliable suppliers for both industry and the private sector.

Conclusions and useful video on the topic

Detailed description of the reinforced concrete ring production process at a large enterprise:

How to properly and safely load reinforced concrete rings into a well:

How to make a convenient and practical septic tank for a private house from concrete rings with your own hands. Useful tips from a home master with experience:

It is advisable to purchase reinforced concrete rings for arranging communications for various purposes from trusted manufacturers. Such enterprises strictly adhere to current specifications and create products with excellent physical and mechanical characteristics..

Products made in accordance with GOST standards, serve for a long time, are resistant to external conditions, are not deformed during operation and fully produce the period indicated by the manufacturer.

Do you want to talk about how you selected rings for the construction of a drinking well or septic tank in a suburban area? Have interesting information that will be useful to visitors to the site? Please write comments, share useful information, publish photos on the topic of the article in the block below.

Was the article helpful?
Thanks for your feedback!
No (7)
Thanks for your feedback!
Yes (43)
Visitors Comments
  1. Sergei

    Construction of a well from concrete rings is now the most common way, so there should not be problems with the material. The main thing is to carefully inspect each ring for cracks and chips.You need to make sure that it is of the correct shape, check the strength, make sure that the fittings are available. Be sure to check the certificate that the product is suitable for drinking water. Well, and approach responsibly to the installation of each of the parts of the well, because the quality of the water received will depend on this.

  2. What to look for when shipping rings? Should there be any accompanying documentation?

    • Expert
      Nikolay Fedorenko

      GOST marking of rings, accompanying documentation is provided by the manufacturer or supplier. When shipping, pay attention to the integrity of the rings so that there are no chips, cracks or other defects.

      Also note that concrete rings must be marked accordingly:

      1. KO - support ring, designed for the fundamental part of the well;
      2. KS - wall reinforced concrete ring used in small or extremely narrow sections of wells.

      It is these two types of rings that you need, you do not need another marking (KVG, KFK, KLK), since these rings are not suitable for wells.

      Attached photos:
    • Valeria

      Hello. Keep purchase receipts and other documents so that you cannot be stolen. We had this on the street - they brought the rings to the common well, and coincidentally - they stole it on the next street. Provided checks on the street. And besides, if your rings will be lying for a long time without installation and not behind the fence, take permission from the administration to store building materials.