Reinforced concrete pipes: classification and scope

Such products are made of concrete on a special reinforcement cage. In their production using technology vibrohydropressing, which gives them extra strength and durability. These qualities allow using not only new, but also used reinforced concrete pipes.

Properties purpose use

This type of products is characterized by good frost resistance and water resistance, which makes it possible to speak of their use even in extremely difficult climatic conditions. It should also be noted that the joints of such pipes are very reliable and of high quality.

This allows you to increase the pairing at the junction to the maximum. Typically, these structures are used to transport fluid whose temperature does not exceed 40 degrees.

Note! The degree of impact of the transported fluid on the material should not be too aggressive.

Classification

Allocate pressure and non-pressure pipes. Each type has its own individual characteristics and degrees of strength.

Reinforced concrete pressure pipes can be divided into 4 groups according to the maximum permissible internal pressure:

• 1 group - up to 20 atmospheres (atm).
• 2 group - up to 15 atm.
• 3 group - up to 10 atm.
• 4 group - up to 5 atm.

Such products are used mainly for the installation of pressure pipelines. It should be noted that by virtue of the reliability of the design, a reinforced concrete culvert can last, on average, from 50 to 100 years.

Impotent

Impotent, в свою очередь, подразделяются на 3 classа, в зависимости от своей прочности, которая измеряется до верхнего края трубы:

• 1 class - up to 2 meters.
• 2 class - up to 4 meters.
• 3 class - up to 6 meters.

Most often, free-flow find the application at construction of household water supply systems of collectors. They are also used in industrial, hydraulic and road facilities.

Their main task is to transport wastewater, industrial and rainwater. All this displays GOST on reinforced concrete pipes.

Difference in size

Depending on the application, sizes vary. One of the most important characteristics is the diameter of the pipe. The diameter varies from 150 to 2000 millimeters (mm).

Display the use of such pipes in the table:

There is a category of free-flow pipes, which is called seam pipe. They are used for the construction of underground pipelines and installation of engineering communications systems. They are distinguished by high frost resistance and moisture resistance.

Their strength characteristics are also at the highest level. They are easy to install, and this is one of their main technological advantages.

When joining use special sealing rings, which provide almost complete tightness of the connection.

Section

Also, pipes are classified according to the cross-sectional shape:

• Round.
• Triangular.
• Trapezoidal. This category can only be made of wood.
• And of course reinforced concrete rectangular pipes.

Special attention deserves such a design as a reinforced ferrule for pipes. It is used if you need to strengthen any part of the pipe, if it is subjected to permanent loads and there is a risk of deformation.

The principle of the cage is that after the concrete dries up, it shrinks, and the cage as it presses the protected object. At the same time, a volume stress state arises inside the reinforced material.

Note! In addition, the casing material itself, that is, reinforced concrete, adds additional structural strength.

Production and self-application

Before proceeding directly to the production technologies, it is necessary to mention such constructions as reinforced concrete links of the culverts. They are intended for laying pipes under railway embankments and highways.

Usually, they are made from heavy concrete, which gives additional strength and stability to the whole structure. They are also used in seismically active regions and where contact between the pipeline and aggressive environments is possible.

Today, there are several common technologies for the manufacture of concrete pipes. This includes high-frequency vibroforming with the pressing of concrete and centrifugation with additional vibration, radial pressing and some others.

The most popular method today is the method of vibropressing. On modern vibropressing production lines, 1, maximum 2 people work.

Equipment for the production of concrete pipes by this method is the following list:

• The vibropress forming plates.
• The bunker for concrete in which there is a batch of solution.
• Transport trolley carrying pipes.
• BAZ.
• Installation, testing tightness.
• Press to test the strength.
• Loader.
• Bearing rings.
• Drying area.
• Finished products warehouse.

Although the manufacture of pipes requires special equipment, there is a type of work that can be successfully performed with your own hands. We are talking about self-installation of sewage systems in a private house. To do this, you must perform the following work:

Calculate the volume of the camera, and decide what exactly will be installed (1-chamber, 2-chamber, or 3-chamber) depends on this and the price in the end.

• Install prefabricated reinforced concrete structures.
• Move the sewage pipes to the sump.
• To conduct a complete sealing of the joints.
• Backfill the well.

Provided that the above instructions are followed, the design will be able to serve for a very long time. Concrete constructions deservedly occupy one of the first places in popularity when laying pipelines of various purposes.

They are favorably distinguished from competitors by strength, durability, reliability and, of course, cost. Ease of production is also among their strengths.

Conclusion

All applications completely describes the GOST for pressure reinforced concrete pipes and other structures of this type, and as for the simplified version of the instructions for use, it is displayed in the presented material.

Also, the video in this article will vividly be able to demonstrate which pipe is best suited for which sphere.