Concrete pump: features of the use of screw, piston models.

One of the most progressive methods of supplying concrete to the place of pouring and even distribution is the use of concrete pumps. This method greatly improves the performance and quality of concrete work, but due to the fact that the concrete pump is a complex and expensive equipment, it is not always used. You will learn about how to use and the types of equipment from our article.

Features of the use of concrete pumps

The participation of such equipment in construction work entails:

• The use of labor of highly skilled concrete workers and mechanics.
• High organization of production work.
• Strict adherence to all technological requirements.
• The use of special formulations of concrete mix with:

• Concrete pipe diameter.
• The conditions and range of the mixture in the design.

Based on the foregoing, it is advisable to use a pump for pumping concrete when the mixture is otherwise difficult to supply or is not possible, as in the case of:

• Concreting structures that are in cramped conditions.
• Internal or densely reinforced structures.

Note! Of course, no one has the right to prohibit the supply of the solution in any conditions, it all depends on your budget.

Types of concrete pumps

Concrete structures of various types are used for concreting the structures, depending on the conditions of work and assignment:

• Stationary is a piston unit located on a frame with wheels.. As a rule, such equipment is installed for a long time, and is used in the construction of high-rise buildings. If necessary, it is moved further to the desired place for pumping the mixture. The installation is carried out using a diesel or gasoline engine. The stationary pumping installation is capable of:

• Serve concrete to a height of more than four meters.
• Feed rates up to ninety cubic meters per hour (depending on the technical characteristics of the unit).

The advantages of stationary installations include:

• Small size.
• Not great requirements for the installation site.
• Low price (up to 3000000 rubles). Rent of such a concrete pump will cost 250,000 rubles per month.

• Trailer - mobile installation, not distinguished by power, but fit in almost any area and easy to transport.

• Mobile. Such installations are fixed on the frame of the truck. The advantage of automotive concrete pumps include:

• High power (up to one hundred fifty cubic meters per hour).
• Mobility.
• High performance, reducing construction time.

The only disadvantage of this type of equipment is its price. Only the largest construction companies can afford to buy such a machine. A concrete pump truck truck based on MAN costs more than 12,500,000 rubles.

The Korean version based on DAEWOO will cost a bit less - up to 10,000,000 rubles. But so and so, you see, for a private developer such a technique is not available.

Tip! An exit for organizations that cannot afford such equipment may not be its long-term lease. Rent an auto pump, depending on the power and time of rental or the amount of concrete, costs from 2500 rubles per hour, or from 200 rubles per cubic meter.

Recommendations and Tips

• The most common mobile installation on the go auto. They are equipped with movable arrows of three or four links that fold in a horizontal or vertical plane.
• Concreting structures in the sliding formwork should be performed with a compensating device in the vertical section of the concrete pipe. It is easier to regulate smooth changes in the length of the pipeline when the formwork is lifted.

Note! The compensation device consists of a combination of straight inserts and elbows, which are combined with locking hinges.

• In conditions of very low temperatures, use only heated concrete mix to a temperature not higher than twenty-five degrees. This measure is necessary to avoid: firstly, premature thickening of the concrete mix; secondly, the loss of mobility, and thirdly, ease of pumping.

Note! Concrete pipelines in such conditions must be insulated and preheated with steam before starting work, with the obligatory removal of condensate that has formed to the outside.

Types of concrete pump designs

Among concrete pumps there are two main types of construction:

• Gerotor pump for concrete.
• Piston pump.

Screw pumps

Gerotor (auger pumps for concrete) equipment is able to provide an even supply of concrete of any stiffness. They are characterized by low engine noise.

Possible concrete traffic jams in the concrete line are eliminated by reverse engine operation.

• The main disadvantage of such equipment is the rapid wear of the reinforced hose.
• The advantage is the relatively inexpensive cost of repair, because the replacement of spare parts does not need to attract highly qualified personnel.

In general, it is recommended to use a gerotor pump for polystyrene concrete (other liquid and pasty solutions) with a hydraulic piston system.

Such equipment has:

• Long service life.
• High performance.

Piston pumps

A distinctive feature of modern piston equipment is:

• The supply of concrete mix to a height in the range of from five to sixty five meters.
• Performance in normal conditions up to one hundred and eighty cubic meters per hour.

Disadvantage - more susceptible to wear, which will affect your budget or the budget of the construction company.

There are craftsmen for whom it is not a problem to design and assemble a pump for concrete with your own hands. But this is not a matter of five minutes and requires special skills. Although if there is such a desire and strength, as well as detailed instructions, then everything is possible! A stimulus of your ideas will be the final cost of a self-made concrete pump (within 60,000 rubles).

Concrete transportation

For the preparation of concrete mixture along the line to the construction site using a concrete mixer truck with a pump. At the base of the car, a concrete mixer with a pump is attached, which in the process of transportation to the object of construction, fastens the ingredients of the concrete mix directly into the continuously rotating drum.

To supply the concrete mix from the mixer to the place of concreting of structures, the concrete mixer with pump is equipped with a tray loading and loading device.

Such mixers on the road can prepare and deliver a solution in a volume of from five to nine cubic meters. As a rule, they are located on the basis of ZIL, Ural, KamAZ, MAZ, KrAZ and MZKT vehicles, which are designed for different loads and work in any road conditions.

Concrete mixers with a pump, it is advisable to purchase companies specializing in:

• On the sale of concrete.
• On the provision of services for the delivery of concrete.

Only a large construction company engaged in large-scale construction on an ongoing basis can afford to own a concrete mixer. Only in this case, the payback of technology will be high.

Even taking into account the depreciation deductions for the maintenance of such equipment with its constant regulatory load, after a year you will recoup the funds spent on its purchase.

The operation of concrete mixers with a pump for paving, construction of agricultural complexes and other development objects remote from the concrete supplier is particularly cost-effective.

Conclusion

Now you know the price of the pump, which in the future will fill you with a concrete foundation or which you will get into your fleet, which, you see, is very cost-effective in conditions of high demand for the construction of country houses. The main thing - do not make a mistake with the choice of the manufacturer of the equipment and monitor the status of technology.

In the presented videos in this article you will find additional information on this topic.