Reinforced concrete rings for the well. Basic requirements for the technological process of production

Concrete rings for the well are highly reliable. They have a standard height of 90 cm, but due to installation features, additional parts of 60 and 30 cm are available. The diameter appears in the marking. For example, the abbreviation KS-10 means that the product is 10 dm (100 cm, 1 m) across.

Rings differ in purpose and technical indicators:

• plumbing;
• sewer;
• for gas pipelines;
• wall (ordinary);
• additional (auxiliary);
• details with a locking system.

Depending on the type of construction, the required dimensions of concrete well rings should be selected. Special attention you need to pay attention to the fact that all elements must be tightly fitted to each other (to avoid water leakage).

The main disadvantage is a lot of weight. At industrial facilities, this is not a difficulty, but for individual construction, ordering special equipment will be another item on the list of expenses.

Concrete rings have several advantages:

• they can be used on any soil, regardless of the depth of installation;
• efficiency, ease of installation;
• convenience of work on heat and waterproofing;
• resistance to external aggressive influences;
• optimal performance;
• long service life;
• preservation of taste qualities of water.

To extend the service life and increase quality indicators, reinforcement is carried out, although this is not a prerequisite. The manufacturing principle is to use the pressing method, which allows the parts to keep a dense uniform shape, not to let water through. During installation, the elements of the well are interconnected by means of cement mortar. Rings with a lock in the form of a fold make it possible to avoid displacement during installation. This helps to maintain the integrity of the waterproofing and other protective coatings.

Rates

The cost of rings for a well depends on the manufacturer, their size, brand.

Additional elements

To facilitate operation, improve the appearance and technical characteristics, a number of accessories are used during the installation of well structures. Some of them may be included in a set with basic elements.

1. Bottom. It plays an important role for all types of concrete products. For more secure installation of the whole complex, it is desirable to purchase parts with a bottom in the kit. However, the dimensions of the ring and the base are identical, therefore, it will not be difficult to choose the bottom.

2. Rings with a lock. They are a roller clutch system. They differ from conventional structural elements in their high price, reliability and greater water resistance.

3. Lids. For reinforced concrete wells, caps made of identical material are used. They protect the inside from the ingress of various debris, are equipped with a hole for the hatch. They differ from decorative counterparts in strength and endurance to significant loads.

4. Floor slabs. Their purpose is to uniform distribution loads, which gives additional safety to the structure for people. The floor slab looks like a regular concrete panel with a round hole to extract water. These accessories are considered an integral part installation work for well installation.

5. Decorative houses. They decorate aesthetically, partially protect from precipitation, facilitate the process of getting water.

Installation instructions

Installation of a well shaft is carried out in several stages.

• Pit preparation. Consideration should be given to work with lifting mechanisms and the need for subsequent finishing, insulation. Therefore, the width must be done with a margin.
• The earth base is compacted, reinforced with gravel ballast, then re-tamping is carried out.
• Strictly horizontal laying of the bottom plate of the structure is observed.
• Installation of the initial ring with a check on the building level.
• Installation of the rest of the elements with their fastening to each other, depending on the chosen method.
• Sealing of butt joints, chips, implementation of hydra and thermal insulation.
• Backfilling the pit with sand, screenings or fine crumbs.
• Floor slab placement.

Helpful Hints

It is reasonable to order well rings inexpensively from a direct manufacturer, which includes delivery in the cost of production. You can also buy used items cheaply from a secondary organization. However, it is worth considering that such goods usually have deformations and chips. Therefore, when buying material, you need to remember about additional costs, namely:

• consumption of used materials and restoration of the integrity of the concrete product in places of deformation;
• taking into account the high costs of waterproofing than when working with new blocks;
• waste of time for installation, bringing used elements to a presentation;
• the possibility of obtaining goods produced in a handicraft way, without any guarantees.

Summary

Proper manufacturing is only available in the factory. Due to the weight, transportation requires the use of heavy vehicles, crane installations. A similar situation occurs during installation.

You can order concrete rings directly from the supplier, while saving money on delivery. Attention should be paid to appearance goods, the reputation of the manufacturer, the availability of relevant certificates and accompanying documentation.

Sewerage is one of the most important attributes of comfortable living both inside the city and outside. To improve the standard of living outside the city, it will be necessary to install a local treatment plant, or, as a good alternative, a concrete septic tank. For its construction, concrete sewer rings will be required, which are divided into several varieties and differ technical specifications. In our company, for the installation of septic tanks, we use high-quality concrete sewer rings from the factory, which are stored in our warehouse. Now we will introduce you to the prices, sizes and other parameters of the rings used.

Sometimes when selling concrete rings for sewerage, the price of which is one of the best in our company, the degree of concrete permeability is also indicated. O - especially low, P - reduced, N - normal.

Before you buy concrete rings for sewerage, you should carefully read the markings. So, the marking KS 10-9 indicates that the product is a wall ring with an inner diameter of 100 cm and a height of 90 cm. Other markings are deciphered in a similar way before buying concrete rings for a septic tank. Now you will not have any difficulties with the selection of reinforced concrete rings.

How to calculate suitable sizes
Despite the fact that the price of concrete rings with a bottom for sewerage (as well as through ones) in our company is at an acceptable level, it is important to choose reinforced concrete products with the desired diameter. This will save you money and make the installation process easier. The volumes of the most popular models - KS 10-9 and KS 15-9 are 0.60 and 1.64 cubic meters respectively.

The estimated volume of a septic tank is equal to the product of the number of people living in the house, daily allowance water consumption per person (150-200 liters) and the number of days during which the well will be filled with water (standard - 3 days). You can use another formula - multiply the total daily volume of water consumption by those living in the house, multiply by a coefficient that varies from 2.5 to 3.

The cost of concrete rings for a septic tank
Do you want to buy concrete sewer rings at a price below the average? In this case, it will be beneficial for you to order materials with subsequent installation in our company. We offer only high-quality concrete rings for a septic tank, the price of which does not exceed the average level in Moscow and the Moscow region. For the arrangement of suburban septic tanks, we use products marked KS 10-9 (weight 610 kg) and KS 15-9 (weight 1000 kg). How much does a concrete sewer ring cost? In the case of KS 10-9 products, the cost is from 1,700 rubles, and the cost of concrete rings for sewerage (price per piece) of the KS 15-9 type is from 2,700 rubles.

Make the right decision!
Now you understand what are the sizes and the price of concrete sewer rings used by our specialists for the purpose of arranging sewers. We suggest that you entrust all the work on the purchase, delivery and subsequent installation of concrete rings for sewerage - the dimensions and price in Moscow of which fit within an acceptable framework.

We have our own warehouse of reinforced concrete rings, so we guarantee that there will be no problems with deliveries and deadlines. Entrust the construction of a septic tank to us to get a quality result!

Reinforced concrete rings - a building material related to the finished form and manufactured in accordance with GOST 8020-90. In the production of the product, various mixtures of concrete grades, aggregates such as crushed stone (many fractions), sand and special metal reinforcement are used. The totality of the material used determines the weight of the rings, and the presence of reinforcement determines the name of the structures. Providing the strength and reliability of the rings, the metal also reduces the risk of cracking of the reinforced concrete rings, and resists the stretching of the structure. In turn, the concrete component serves as a protection for the reinforcement, excluding corrosion processes, and also rendering resistance to compression during temperature changes.

Thus, reinforced concrete rings for wells of various types have heavy-duty characteristics, in comparison with concrete structures not reinforced with reinforcement.

Types of reinforced concrete structures used for various purposes

For the arrangement of sewer and drinking wells, the following structures are shown:

1. with lock connection ring type. On each element, special protrusions are cast in the upper part, and recesses in the lower part. During installation, one element is placed on top of another, while being tightly enclosed in a lock. Such a technique ensures the integrity of the structure during operation and the impossibility of movement / displacement to the side.
2. Straight reinforced concrete rings without locking elements. They require sealing at the inter-ring joints by means of metal staples, cement mortar, special-purpose sealant.
3. Adjustment low rings having an increased thickness along the width of the walls and a reduced diameter. Shown for adjusting the horizontal surface of the structure, adjusting the internal volume when it becomes necessary to narrow the diameter to the desired size.
4. Additional reinforced concrete products. Used to adjust the height of wells. They are usually used to build a "glass" or to replace a standard reinforced concrete ring due to its large size.

Important! Low additional rings are applicable according to SNiP and are approved for use in a variety of situations.

Precast product dimensions

Markings of rings for the construction of wells: KS, KC. Each element has its own weight, dimensions, volume and diameter. According to the established GOST 8020-90, the dimensions of the reinforced concrete rings (KS - wall rings) are set by a certain diameter of the outer wall (dn), inner wall (dv). Options:

• Height 2.9 - 11.9 meters;
• Dn - 0.8-2.7 meters;
• Dv - 0.7-2.5 meters.

Standard well rings reinforced concrete are divided into three categories:

1. Small . They have diameter parameters dv - 1 m, height - 0.9 meters (with wall thickness dimensions of 1.6 cm), weight up to 600 kg;
2. Medium . Inner diameter up to 1.5 meters, weight - up to 1000 kg;
3. Large . Inner diameter from 2.0 meters, weight up to 1500 kg.

Simplified way of dividing cast units by class:

• Class A - up to 1 meter in diameter;
• Class B - more than 1 meter in diameter.

Dimensions also determine the name of the elements. In particular, the KS 7.9 series has a height of 0.89 m, an internal volume of 0.84 meters, an external diameter of 0.67 meters, which differs from KS 10.10 products, whose height is from 1 m and a total diameter of 1.2 m. each element is indicated in the appendix to the product.

Important! In the names of products, the first numerical designation corresponds to the rounded value of the internal volume. Therefore, when choosing well rings of reinforced concrete, you need to focus on this indication. The number after the dot is the height value, rounded to a convenient calculation. Therefore, in particular, the calculated diameter of KS 20.6 will always be larger than products of the KS 7.9 brand.

Characteristics of standard reinforced concrete elements for wells with a bottom:

• Dv 100 cm - height 0.9 m, weight 830 kg;
• Dv 150 cm - height 0.9 m, weight 1400 kg;
• Dv 200 cm - height 0.9 m, weight 2300 kg.

Thanks to the table, you can always calculate the volume of the desired well, the number of standard and additional concrete reinforced rings.

Calculation of the volume of concrete for the production of reinforced concrete rings

The procedure for manufacturing products complies with GOST standards. Any deviations from the requirements lead to a decrease in product quality, violation of the specified technical characteristics and minimization of the terms of use during operation. For the mixture from which the rings for the reinforced concrete well are cast, the following components are used:

• sandy clean mix;
• gravel;
• small-sized crushed stone;
• heavy grade cement M400, M500;
• iron fittings.

It is important to observe the ratios of all components. In particular, for 2.4 tons of concrete mix, the parameters of other components are as follows:

• 150 kg of clean river sand or mixture;
• 300 kg of cement (it is better to take the indicated brands so that the concrete base is stronger);
• 1200 kg of crushed stone;
• 150 liters of water.

An important parameter: the ratio of water and cement should not be greater than the designation 0.7 in the calculations. Otherwise, the strength and toughness characteristics will be significantly reduced. Only by carefully calculating how many components to take for the manufacture of reinforced concrete rings for wells, you can get a high quality product.

Reinforced concrete rings are distinguished by a variety of structural designs, which determines the breadth of their application. The demand for reinforced concrete rings is due to their numerous advantages, such as reliability, strength, high resistance to external loads.

The scope of reinforced concrete rings depends on the materials from which they are made. For their production, different grades of concrete, crushed stone and sand with a wide granulometric composition, metal reinforcement or mesh are used. They provide sufficient safety margin for drinking water, wells, collectors, septic tanks, inspection, sewers, gas pipelines. Drainage systems are also mounted on reinforced concrete rings.

Marking, size range

Concrete products are designated according to the scope and dimensions. Units of measurement - decimeter or meter. Examples of letter marking according to GOST:

• KS - wall concrete rings for the equipment of viewing or mouths;
• KSD - wall products with a bottom;
• KO - with support;
• KFK - for septic tanks and fecal systems;
• KLK - stormwater;
• KLV - water intake wells in stormwater;
• KVG - for the construction of water and gas pipelines.

The marking may include the grade of concrete used, usually from M200 to M500, reinforcement information. For example, standard wall rings for wells are not reinforced, since concrete can withstand lateral loads with its own hands and works in compression. Reinforcement is needed for rings for use in difficult ground conditions. For this, steel rods up to 1 cm thick or a reinforcing mesh 0.6-1 mm in size are taken.

By mass, concrete rings vary in the range of 44-1470 kg.

What qualities do they match?

GOST 8020-90 defines the properties characteristic of reinforced concrete rings. It describes the marking, scope, dimensions of standard designs. The strength values ​​of concrete grades used for pouring rings are standardized in GOST 10180. GOST 10060 includes information on the frost resistance of the material, and GOST 12730 - on water resistance. Compliance with the requirements of GOSTs provides the following advantages of rings:

• availability of installation at different depths in the soil of any quality;
• ease and high masonry rates;
• convenience of laying waterproofing, insulation;
• reliability;
• the ability to withstand any mechanical, aggressive influences;
• ease of repair and operation;
• durability.

The only downside is the weight. For this reason, it becomes necessary to use lifting equipment for arranging concrete rings.

Kinds

There is a classification of concrete rings according to GOST and the type of structural design standard sizes(diameter - 7-12 dm, height - 0.1-1 meter).

Auxiliary

Concrete rings are made to order, for example, when non-standard sizes, shapes or additional holes are needed. Additional and supporting concrete rings are used during the installation of complex technological objects, for arranging turns of engineering communications, during the construction of the neck of the well, when drainage systems are installed. Such rings can be standard and square.

Wall

Rings are characterized by the absence of additional fasteners. They are most often used for the construction of necks. They are distinguished by ease of installation: the products are stacked on top of each other, the seams are sealed with concrete mortar. Disadvantages - instability of the structure, the possibility of destruction at the slightest shift of the soil.

With lock

Lockable designs are popular because of their reliability. The main task of the lock is to ensure the tightness of the joints and increase stability. A concrete product with a recess in the end is able to resist a powerful quicksand.

Precast concrete rings

The production of prefabricated rings from reinforced concrete is carried out at the factory. Differ in the improved technical characteristics. In view of this, they are endowed with a lot of advantages.

1. , provided with a strong bond between steel and concrete after drying.
2. Corrosion resistance obtained by protecting the reinforcement with concrete.
3. Fire resistance.
4. Durability in any operating conditions. Reinforcement with reinforcement is endowed with resistance to heavy loads. Thanks to the use of high-grade concrete, the structure does not lose its characteristics, does not deform and does not collapse over time.
5. Low cost products.

There is only one drawback - a lot of weight.

with bottom

Reinforced concrete rings with a ready-made sealed and waterproof bottom are equipped sewer wells, sediment chambers, septic tanks. The bottom protects the reinforced concrete structure from groundwater leakage and from the seepage of harmful substances into the soil. The most common dimensions for the cross section (meter), height (dm), weight (kg):

• 1 x 9 x 830 kg;
• 1.5 x 9 x 1400 kg;
• 2 x 9 x 2300 kg.

With floor slab

Products with floor slabs are designed for arranging wells of great depth. Such a reinforced concrete ring is the final element of the structure and has a hole in the ceiling, offset from the center for installing the neck of the well. Reinforcement with a floor slab gives the ring greater strength and reliability.

Production technology

The manufacture of reinforced concrete rings is a laborious process that requires certain skills and knowledge. Therefore, for the construction of a small well, it is more expedient to purchase ready-made concrete products. You should know that the formwork for the rings is quite complex in design. Casting work requires precision and accuracy. Compliance with the rules will avoid unevenness, loss of strength and the formation of voids in concrete. The main stages of ring production are described below.

Preparation of materials and tools

For formwork you will need:

• two steel barrels of different sizes;
• door or window awnings;
• fastening accessories;
• "pencil" for metal;
• grinder, cutting disc.

To prepare a solution:

• or individual ingredients for the solution;
• concrete mixer;
• a bucket with which the required volume is measured;
• vibrocompactor.

Basic requirements for the technological process of production

1. It is necessary to ensure sufficient strength of the collapsible form for concrete rings.
2. High-grade mixture not lower than M500.
3. Fine aggregate - with a grain of 0.5-1 cm, washed sand.
4. Quality vibrocompaction.
5. Heating during operation at temperatures up to 5 0С.

Formwork and frame construction

A barrel of a cylindrical shape is marked on the outside with two longitudinal lines "pencil" on metal in half. Two door or window canopies are attached to the marked lines. Their bends must match the drawn line. The same marking is applied from the inside of the cylinder, along which an incision is made with a grinder. This allows you to make the formwork drop-down. Fasteners are used to connect the halves.

The second cylindrical barrel must be smaller than the first. The same marks are made on it as on the first one with a distance between the lines 1/3 from each other along the circumference. Canopies and spindles are also attached. The cylinder is cut along one line. The hinged parts must be assembled so that from the inside the structure is 5-10 cm higher than the outer formwork.

Cylinders should open: upper - outward, inner - inward. A reinforcing frame made of steel reinforcement or metal mesh is poured with concrete in the support ring, forming a durable reinforced concrete layer.

Filling with composition

To prepare the filling, you can use the finished concrete mix or do it yourself. In the latter case, it is customary to take the ratio of cement to crushed stone and sand equal to 1: 1: 3. The volume of water is determined visually so that the solution is evenly distributed inside. The liquid is added in parts with thorough mixing.

Ready concrete solution is poured in batches. Each layer is carefully rammed. To do this, it is better to use a special vibration device. A large weight implies laying with a crane, therefore, four mounting loops with a cross section of 8-10 mm are installed in reinforced concrete rings at the molding stage. The ends of the wire are bent and buried in concrete at a distance of 40-50 cm.

Seal

The entire volume is qualitatively compacted to remove air, which increases the strength of the finished product. Bayonet or tamping with a rod partially solves the problem. In the absence of a vibration platform, it is allowed to use a conventional perforator. To do this, instead of a peak, reinforcement is clamped with a metal plate welded to its end.

Dismantling

The bolts of the outer formwork are loosened. To make the form easier to separate, the walls are tapped with a hammer. The inner part can be removed more easily if two square pipes are first placed in it. After the concrete has thickened and hardened, these parts are simply knocked out of the concrete mold.

Conclusion

Reinforced concrete rings in a wide range are on the market. It is also possible to make them yourself. In any case, finished products require proper care, which consists in correct installation, maintenance of surfaces and high-quality waterproofing.

Large weight involves the use of special equipment for their masonry.

In order to equip an individual sewer system in your own country house there are several ways. But despite the huge range of more modern and latest building materials, reinforced concrete rings are in the greatest demand. Such popularity was achieved due to the strength, reliability, and frost resistance of such products, as well as the dimensions of concrete rings for sewers.

Main characteristics of concrete rings

Application of prefabricated iron concrete structures in the production of construction allows you to significantly reduce the time of work, while increasing productivity. It is the rings that are considered the product most often used in the construction process.

Application area

The scope of use of such products can be very different:

• Construction of drinking wells;
• Arrangement of manholes necessary for monitoring the state of communication systems;
• Construction of septic tanks;
• Arrangement of storm sewers, etc.

Advantages and disadvantages

The advantages of structures of this kind include:

• High level of strength;
• Durability;
• Frost resistance;
• Ease of installation;
• Ease of operation;
• Small price.

But there is one significant drawback, which lies in the large weight. So, for example, the answer to the question of how much a concrete ring with a diameter of 1 meter weighs is 600 kg. And this suggests that the transportation of such a product to the construction site is impossible without special equipment.

Structural dimensions

Overall dimensions and weight of concrete rings are two parameters directly related to each other. Both the mass and the overall parameters of such products can be different, depending on the type of product being created and the purpose of its use.

To date, there are rings of the following sizes:

• KC-10. The height of such a product is 0.9 m, the outer diameter is 1.16 m, and the weight of a concrete ring of 1 meter of inner diameter is 0.6 tons;
• KC-15. Such a ring is called an average ring and has the following parameters: height - 0.9 m, inner diameter - 1.5 m, outer diameter - 1.6 m, product weight - 1 tone;
• KC-20. Ring height - 0.9 m, with a weight of 1.5 tons, and external and internal diameters of 2 m and 2.2 m, respectively.

Note!
Product marking consists of the letters KC or KS and an indication of the size of the internal diameter of the product in decimeters.

Modern manufacturers offer rings with a diameter of 0.72 to 2 meters and a standard height of 90 cm.

In addition to such standardized products, there are also non-standard ones, which are called additional ones.

Such products may differ from standard ones in the following parameters:

• The form of the structure itself;
• Wall thickness, which varies from 65 mm to 115 mm;
• The presence of locks on the surface, which make it possible to simplify the process of assembling the structure;
• Height;
• diameter.

So, for example, you can purchase concrete rings of large diameter (more than 2 m) or even square products.

Advice. The advantages of using square-shaped reinforced concrete structures include the possibility of installing them on a concrete slab.
This eliminates the need for construction, and besides, it is easier to dig a square hole than a round one.

Ring types

According to the type of construction of this kind, they are divided into two main types:

1. Direct. The connection of such rings is made using metal brackets and cement mortar;
2. With lock- such products are endowed with an annular ledge in the upper part and a recess in the lower. Installing such elements on top of each other allows you to create strong connections, which eliminates the possibility of displacement.

Manufacturing technology

A serious load on products of this kind during their operation makes it necessary to give them high strength characteristics. That is why only high-quality mortar with fine grains is used in the production process. Usually it is concrete belonging to grades from M200 to M500.

The manufacturing process is divided into the following steps:

1. A mold is being prepared for pouring;
2. A reinforcing cage is placed in the form;
3. Pouring with ready-made concrete solution;
4. The voids are removed by vibration.

Now the product remains to dry in the appropriate microclimatic conditions.

Making rings at home

If you decide to make reinforced concrete rings with your own hands, then you should definitely know:

• To obtain a quality product, it is necessary to use cement grade M400 and higher;
• Washed quartz sand should act as a fine filler;
• Large filler - low-rolling gravel.

The instructions for making products of this kind at home are as follows:

1. Formwork arrangement. You will need to build 2 cylinders, 1 for the inner diameter and 1 for the outer.

Advice. Boards, plywood, roofing sheets, etc. can act as materials for the manufacture of formwork.

1. Choose a flat area and install the inner and outer cylinders on it, so that the walls of the products are equidistant around the entire circumference;
2. Along the perimeter of the formwork at equal distances, place 10-12 metal reinforcing bars with a diameter of 8-10 mm;
3. The resulting frame must be secured with wedges that will move upward as the mold is filled with mortar;
4. In order to easily separate the finished product, grease the mold walls with used machine oil;
5. Pour a layer of concrete about 10 cm into the mold and tamp it with a metal pin using the piercing method. Thus, fill out the entire form;
6. Cover the flooded formwork with a thick cloth to protect from the sun;
7. After 3-5 days, the formwork can be removed and the product left to dry for another 7-14 days, covering it from the sun and moistening several times a day.

Arrangement of sewerage from reinforced concrete rings

Sewer installation technology provides for the process of concreting the bottom of the well in order to prevent penetration waste water into the soil.

In addition to the fact that it is necessary to insulate the bottom of the well, it is also necessary to waterproof the joints between the rings.

For this purpose, the following building materials can be used:

• plaster mixtures;
• Liquid glass;
• Rubber seals.

It should also not be forgotten that in the process of soil freezing, it is displaced, which leads to some movement of concrete structures. In order to solve this problem, specialized plastic inserts made of polyethylene, 0.8 cm thick, are used. Today, such inserts are produced in a large assortment, with different diameters and heights.

Finally

Concrete rings are prefabricated structures that are in demand on the modern market for various purposes. Regardless of what object you are going to build, in the modern construction market you will certainly be able to find structures that are suitable in size and shape.

But if there are still no such products, you can easily make them yourself, because this process is simple and will save on transport work. And the video in this article will reveal you even more interesting information about what reinforced concrete rings are.