2 volume. Base plate PO2. Product quality control

Cover plate for trays and channels with a hole ( software 2 ) - a rectangular slab covering channels, tunnels, thermal chambers from tray elements in the place where there is a vertical entrance to the channel. The task of the plate is to cover the trays at the place where the chamber is formed. For this, the design of the plate contains one or two holes with a diameter of 700 mm. Floor slabs are placed on the trays and beams of the chambers, and then concrete rings are installed on the slab, which make up the chamber shaft.

Also, the presence of a plate helps to maintain tightness and protect underground engineering communications channels from insulation destruction, soil collapses and moisture ingress.

The shape of the plate PO 2 is a rectangular flat plate with one or two holes for the subsequent installation of manholes.

The floor slab is used both in above-ground and underground channels, and laid under the railroad and highway canvases. The depth of the position of such channels under the soil layer is from 0.5 to 6 meters. And this means that the coating plate must withstand sometimes enormous loads. The material helps to transfer vertical temporary and long-term loads to the slab - heavy concrete B 25 (M200-300) and high-quality steel reinforcement of classes A-I and A-III. Reinforcement of the floor slab PO 2 is carried out with welded meshes and frames made of bar reinforcement and wire, the frame is laid under a protective layer of concrete 15-20 mm. The presence of holes should not affect the strength of the product, because its task is to protect communications. Therefore, in places where there are holes, additional reinforcement is arranged with separate steel rods and meshes.

Release 6 This series involves the production of floor slabs with a length of 1450 mm, a width of 1500 mm and a height of 120 mm.

The thickness of the section of the floor slab is 120 mm. The standard sizes of the plates are due to the fact that the trays are blocked by them both along and across, according to the schemes for overlapping the chambers and channel nodes.

Plates intended for operation under the eroding effect of groundwater are additionally protected against corrosion. To do this, special additives are added to the concrete mix. Thanks to them, the plate can withstand the effects of aggressive chemical environments for a long time. Anti-corrosion treatment also have all the embedded products of the plates.

The weight of the channel covering plate PO 2 varies is 550 kg. Such a cover is tightly fixed on the channel due to its weight, this excludes the subsequent sliding of the plate on the concrete.

Mounting of plates takes place using the method of loopless mounting using sling holes. Less common are slabs in the design of which mounting loops are laid.

Channel tray covers are characterized by increased frost resistance (F300), this allows the plates to endure frequent temperature changes typical for central Russia. A high class of water resistance together with high-quality waterproofing guarantees dryness of the channel.

The seams and slings between the tray elements and floor slabs, after welding the brackets, are sealed with mortar or mastic, and the channel is hydro- and vapor-proofed.

Product marking

The floor slab is conditionally designated by an alphanumeric combination. They indicate the type of product, the serial number by size and the calculated equivalent load in tf / m2. If necessary, the resistance of the plate to aggressive environments is denoted by the letter H.

As an example of slab marking, consider (1450x1500x200 mm), where:

• PO - channel overlapping plate with a hole;
• The number is the standard size of the product;

Markings, as well as the date of manufacture and the weight of the product are located on the end face of the plate.

On the acceptance tests control the following parameters of floor slabs:

• concrete strength (class of concrete in terms of compressive strength, tempering strength);
• conformity of reinforcing and embedded products;
• strength of welded joints;
• the thickness of the protective layer of concrete to the reinforcement;
• integrity and cleanliness of ventilation ducts;
• dimensional accuracy;

A batch of channel covering slabs must be accompanied by technical certificate, which specifies:

• brand of concrete for strength and its average density;
• release strength of concrete and actual release density of concrete;
• brand of concrete for frost resistance;
• brand of concrete for water resistance;
• date of manufacture of plates PO 2.
• the number of reinforced concrete products;
• indication of compliance with the state standard.

Transport and storage

Coating slabs, unlike most reinforced concrete products, are transported in the “on edge” position. Stacked concrete slabs should not be higher than 2.5 meters. Under the lower row of slabs, on a leveled base, a wooden gasket with a thickness of at least 3 cm is laid. The products are transported by various transport, securely fixed, using gaskets and linings at the locations of the lifting loops.

Description

Product Description

Channel overlap slab PO-2 slab is a rectangular reinforced concrete product used to cover channels, tunnels, chambers from tray products. The design of the plate contains one or two holes with a diameter of 70 cm for a vertical entrance to the channel. The dimensions of the product are selected strictly for the width of a particular tray or chamber. Also, the floor slab helps to maintain tightness and protect underground engineering communications channels from the destruction of insulation, soil collapses and moisture ingress.

Product marking

For an example of marking a floor slab, consider software-2, where:

• Software - Channel overlapping plate with a hole
• 2 - product size.

Product types

PO floor slabs are classified according to the following standard sizes:

• PO-1 - height 12 cm, length 110 cm, width 110 cm.
• PO-2 - height 14 cm, length 140 cm, width 110 cm.
• PO-3 - height 17 cm, length 170 cm, width 110 cm.
• PO-4 - height 22 cm, length 230 cm, width 110 cm.

Trays are popular reinforced concrete products, which are indispensable when laying thermal and drainage routes, as well as other engineering communications. They perform a protective function. Plate PO-2 is a reliable element suitable for use in different types of soil. It is able to withstand solid loads for a long time due to its outstanding strength and resistance to aggressive environments. Its size (145 x 150 x 12 cm, which complies with current standards) and thoughtful design make it easy to transport and install.

* Delivery price is indicated to Moscow, taking into account the full load of the car

Question answer

- Shipping cost?
Delivery is calculated based on the remoteness of your object, from the warehouse, as well as the tonnage and dimensions of the products.

- Where are you taking it from?
Delivery is carried out directly from production. Production facilities are located throughout the central region, and before entering our network, it undergoes strict quality control by the legal, accounting and quality departments.

- Where's the post office?
For the convenience of users, we have made a system for distributing the load on managers, if mail is checked by 1 person, this significantly slows down work or even leads to the fact that read letters are lost. You can leave a request through the form at the top of the site “Leave a request”, it will go to a free manager and you will be called back within 5 minutes.

- Do you have a mobile number?
For the convenience of users, we have made a system for distributing the load on managers, if a mobile phone is specified, then only 1 person can talk on it, and it will be difficult to get through to him during the season.

- Why so expensive?
The price of a product consists of several components, the main of which is the cost of the material, which determines the quality of the final product. There is also a factory margin and a trading company margin, we work on the terms of a dealer discount, therefore we do not have a margin separate from the factory, we earn on the fact that the factory shares with us part of its profits, and we, in turn, provide the factory with volume to ensure uninterrupted operation .

- Why can't you order less than 15 thousand? Do you only work in wholesale?
Some items are made in nearby areas and the delivery of these items adds a significant cost to the product. We have calculated that when ordering more than 15 thousand, the benefit from purchasing products from us becomes greater. If you have a small request for products that are manufactured in your area, it will be cheaper to purchase products at the nearest factories. Unfortunately, at the moment we do not have a single plant in the Moscow region that has passed our quality control.

- Where can I pick it up?
The products are manufactured at different factories, the region and the city can tell you the manager, because the factory is different for each product.

- Why such an expensive delivery?
Delivery is calculated based on the distance of the object from the warehouse of the plant. The shipping cost is divided by the number of items based on the weight of the product, ordering 1 item, the entire shipping cost will fall on it, but if there are 10 items in the order, the shipping cost will be equally distributed among these 10 items.

- Do you work with VAT?
Yes, Beton Project LLC works for OSNO and is a VAT payer. All prices on the website are inclusive of VAT.

- Why is only the office listed on the site, and not the factory?
We are a dealer of factories and carry out our activities at the office address. Because in our list there is a solid number of plants that have passed our check, it is not rational to post all the addresses of plants with products in order to complicate the search for the right plant. If you are interested in where you can take out this or that product, you can always check with the Manager or use our delivery.

- Do you have a warehouse in Moscow?
We do not have a warehouse in Moscow or the Moscow region, because this will negatively affect the value of the goods, because it will entail additional costs.

- What kind of plant? What is the name of?
Products are manufactured at different factories, you can always come to the factory and see for yourself the quality of our products. Also, if you have any doubts, you can pay for the products directly to the factory.

The construction industry today is developing rapidly and on a large scale. New building materials appear on the market every day. Therefore, construction companies often face the issue of fencing areas with a large amount of building materials.

There are many requirements for the enclosing structure:

• Strength. The erected fence should not collapse for a long time.
• Security. The fence must be safe when performing various types of work.
• Available material. The fence should be made of practical, affordable material that can be easily obtained and installed.
• Material safety. All building materials, mechanisms and other valuables must be reliably protected from thieves.
• Practicality. The materials used in fencing should be chosen for practical reasons.
• Construction speed. The enclosing structure should be easy and quick to install.

All these requirements are met by two materials used for fencing territories - reinforced concrete and corrugated board. Depending on the allocated funds for the construction of the construction site fencing, one or another material is selected.

Standard reinforced concrete fence made of PO-3 panels

Reinforced concrete fences

Reinforced concrete panel fences perform a protective and enclosing function, they are often installed at remote sites. In such a fence, concrete cups are mounted under each fence panel, which are located at a distance of the length of the panel, for PO-2 it is 2.5 m. .

The first model of the fence allows you to reduce financial costs, and the second - labor. Therefore, it is necessary to choose what is best in this situation.

Features of panel fencing PO-2

Reinforced concrete fences and glasses for them are made in accordance with GOST 23407-78. They are designed to protect against the penetration of unauthorized persons into private territory, to ensure the safety of material values. The fence PO-2 is made of concrete grade B-22.5, water resistance W-6, frost resistance F-150.

Proper installation of fence slabs PO-2

PO-2 plate dimensions

• Height - 3 m, length - 2.5 m, width - 0.15 m.

PO-2 is the smallest among reinforced concrete panel fences, and therefore has the lowest price among all. It is these panels, as practice shows, that are most often used for the construction of enclosing structures of construction sites, industrial facilities, military units, suburban remote areas, and various warehouses.

A subspecies of this model of fencing PO-2m has an apron, the manufacture of which takes more consumables. And this means that such plates are more expensive, have more weight.

The PO-3 fence slab differs from the PO-2 in length, which is 3 m. The PO-3m model also has an apron, which, as can be seen in the photo, increases safety and reduces the cost of adding soil or filling the space under the slabs with bricks.

Fence PO-2m with apron

Reinforced concrete fences are distinguished by a high degree of strength and reliability, they will withstand almost any mechanical and natural loads. By installing a reinforced concrete fence, you will get an almost eternal building, with an unlimited service life. Fence panels PO-3m with an apron are in great demand today, as they can be used to reduce installation and installation costs and increase the safety indicator.

Installation of reinforced concrete fence

Types of reinforced concrete fence elements

Do-it-yourself reinforced concrete structures, of course, are not installed. Each section of the PO-2 fence weighs about 1.5 tons. Therefore, one cannot do without the involvement of specialized lifting equipment.

It is very important during the installation work to correctly install the panels in the glasses, set the concrete supports themselves, align them in all planes. Let's not forget that we are dealing with concrete, and it is very heavy.

Before installing the reinforced concrete structure, it is necessary to carry out preparatory work with the soil. The soil must be sufficiently dense and not sag, all irregularities must be leveled, interference eliminated.

Very often, before the installation of fences, earthworks are carried out along the perimeter of the future fence. The soil is leveled with tamping and backfilling with a sand cushion. Of the equipment, one cannot do without a manipulator for transporting intake slabs, other concrete elements and a crane.

The best option is a special truck with a manipulator. With it, you can not only transport the fence, but also install it. If it was not possible to find a universal manipulator machine, you will have to hire two pieces of equipment. First, bring the slabs in one vehicle and unload them using a crane.

Truck manipulator, carries out transportation and installation of reinforced concrete fences

For storage of reinforced concrete products, it is necessary to prepare in advance wooden linings that separate each new element. The procedure for installation work is quite clear, but it is better to trust the experts.

Reinforced concrete structures have high strength characteristics, so the choice of the developer often stops on them. However, it is important to understand the entire range of plates, to know and understand their design features, pros and cons. Our video will help you figure it out.

Currently, the construction industry is developing by leaps and bounds, and more and more often in cities you can see construction sites where new buildings are being built or old buildings are being restored.

This is how a typical fence made of PO-2 panels looks like

These areas must be fenced off properly, which makes developers think about arranging appropriate structures that meet the following requirements:

• Due to the fact that construction sites are a source of increased danger, it is necessary that the fence exclude the possibility of causing harm to random passers-by;
• Building materials and tools are stored at construction sites in large quantities, so it is necessary to ensure their safety;
• Since such fences are temporary, it is necessary to be able to quickly install and dismantle them;
• In order not to slow down construction, fencing should be available for purchase;
• The ability of fences to endure mechanical stress is very important in the conditions of construction sites, so the practicality and strength of the fence will come in handy.

An example of an old fence made of PO-3 panels

As a rule, buildings are fenced or that meet the above requirements. Reinforced concrete fences are more durable and expensive, therefore, when choosing a specific option, the material resources allocated in the estimated calculation for the construction of the fence, and the requirements for the safety and reliability of the future fence are taken into account.

Reinforced concrete fences

Consider some of the most popular models of reinforced concrete fences that are currently on the construction market. installed in special glasses. Therefore, the shorter the length of the fence section, the more glasses you will need. On the other hand, reinforced concrete fence sections of shorter length are cheaper.

The conclusion is as follows: fence models of shorter length require the installation of more glasses, which increases the labor costs for the construction of the structure.

Model of an industrial fence installed in special glasses

However, longer sections, although they save on the installation of glasses (their cost, as a rule, is a third of the cost of the plate), are noticeably more expensive.

PO-2

PO-2 fences have the following dimensions: length / height / width - 2.5 m / 3 m / 0.15 m. This model is the most compact in the line of reinforced concrete fences, which affects its cost. PO-2 fences can be found not only near construction sites, but warehouses, industrial zones, large suburban areas, and even military units and correctional institutions are often enclosed by them. The price of such plates is on average four and a half thousand rubles.

A variation of this type of fencing, marked PO-2M, is distinguished by the presence of an apron in the lower part, which makes it possible to reduce the distance between the fence and the ground.

The cost of such upgraded sections is higher than the standard ones.

PO-2 panel design scheme

PO-3

This type of sections of reinforced concrete fences differs from the previous one only in length, which is three meters. Accordingly, its cost and weight will also be higher, however, these plates are structurally no different. Just like in the previous case, this model has a variety - PO-3M.

The apron allows you to increase the safety of the future structure, because it excludes penetration into the territory through the distance between the ground and the fence. In addition, thanks to the apron, it is possible to reduce labor costs for construction, because in this case there is no need for ground filling or filling the gap in other ways.

brief information

Fencing (fence) slabs ON 2- these reinforced concrete products are rectangular slabs, the purpose of which is to protect construction sites, storage areas and other protected objects. Fences made of such prefabricated elements provide an opportunity for reliable fencing of personal plots, cottage settlements and gardens. Fencing slabs PO 2 have a number of advantages, one of them is the provision of a certain sound insulation and protection from dust. There is also the possibility of coloring the product to give the product a more aesthetically attractive appearance, any paint can be used for coloring, since the surface of the product is quite susceptible to dyes. Fencing slabs have a high degree of reliability, installation is quite simple and fast, they have the function of protecting property or territory from intruders, vandals or uninvited guests. Plates are presented in two configurations - with legs and without them, a special glass is provided for each product for reliable support and fixation of the plates.

Reinforced concrete fencing slabs PO 2 are a high-strength product, due to their characteristics, the slabs perform their main functions for quite a long time. These concrete products withstand a number of adverse factors, such as the influence of an aggressive environment and climatic conditions. Additionally, it is possible to install barbed wire on the upper edge of the plates to prevent intruders from entering the territory. The plate has a mass of about 1.5-2 tons, as a result of which installation is carried out with the involvement of special equipment is impossible. Installation of fencing slabs is carried out along the perimeter of the strategic object in concrete cups intended for installation. The base of the slabs is quite stable and dense, which is why laying a special foundation is not required.

All reinforced concrete fencing slabs PO 2 are absolutely identical, therefore, the slabs are interchangeable and complementary. To date, a fence made of reinforced concrete slabs is the simplest and most reliable way of fencing and protecting the territory. In terms of strength and durability, a fence made of reinforced concrete slabs can only be compared with a fence made of natural stone. A brick fence in all respects is inferior to a reinforced concrete counterpart, since it is most susceptible to deformation, there are difficulties in erection, and high cost. In some cases, different ribs or patterns are applied to the slabs to distribute wind loads and make the gray concrete look more modern. Quite often, the relief of the intake slabs is deliberately made sufficiently voluminous to avoid the possibility of climbing it. The large mass of the plate does not allow it to be moved by either the wind, or moisture, or a person. The lifting of such massive concrete panels is carried out only with the help of a crane with a uniform load on all steel mounting loops.

Production

Reinforced concrete fence slabs PO 2 are made of heavy concrete, class not lower than B20 by vibropressing or vibrocasting.

For the production of a quality product, high quality cement and sand are used, thus, the plates gain strength, reliability and durability. Fence slabs are reinforced with steel of class A-III and BP-I, welded into frames. Reinforcement is necessarily treated with special anti-corrosion compounds.

Mounting

The construction of reinforced concrete slabs PO 2 is quite simple. Installation does not require laying a special foundation. The technology for assembling reinforced concrete fencing panels consists of several stages. The first stage is the installation of the base for the fence on a pre-prepared site. This base is a massive concrete blocks that have the shape of a truncated pyramid - "glasses".

The next, final stage is the installation of the reinforced concrete slabs themselves. Already installed support blocks have slots or “grooves” specially provided for this on both sides, into which the slabs are inserted using a crane and several workers who guide the slabs. When temporarily installing a structure made of reinforced concrete slabs, for example, at construction sites, wooden wedges are driven in between the glass and the slab to securely fix it. If fencing slab structures are being erected as a capital structure, concrete is poured between the slab into a glass, which firmly fixes the slab. Various design features of the slabs make it possible to connect them into a single continuous fence wall. These products are reusable elements, since after dismantling they can be used in any other place without losing their original qualities, for example, at construction sites, when a building is being erected, a reinforced concrete fence is disassembled and transported to another place.

Marking

The symbol of the fence slab consists of alphanumeric designations, which include the designation of the type of construction and the standard size. For example, a slab marked PO 2 (2500x 150x 3000 mm) has the following decoding: PO - fencing slab; The number is the size of the product.

There are several markings for this type of product:

1PB 40-20 2PB 30-16 P 5 P6 SW 2

Dimensions

The finished fence made of slabs reaches a height of up to 2.9 m. Civil structures and construction sites are protected with reinforced concrete fences 1.2 and 2 meters high. The use of slabs of precisely this size prevents the penetration of either people or animals into the territory of the facility, and also reliably hides the space from prying eyes.

Transport and storage

Storage and warehousing of fence slabs PO 2 is carried out horizontally in stacks. There should not be more than eight panels in a stack of plates to prevent overloading. Between the slabs there are wooden spacers strictly along one vertical line. During the installation of fence slabs, vertical supports are used to prevent the slabs from tipping over.