Concrete truck: the device of this type of equipment and
Concrete truck is an important type of construction equipment, which allows to transport concrete to objects under construction. Without these machines a number of branches of modern construction is inconceivable. Therefore, in this article we will take a closer look at what modern truck mixers are, their types and features.
Features of technology
Modern truck mixers are trucks equipped with a rotating mixer for concrete. This allows the machines not only to deliver the material to the object, but also to produce it during transportation. Due to the fact that the solution is in motion all the time, due to the rotation of the drum, it does not set, which allows transportation of the material over long distances.
I must say that the history of the emergence of this construction equipment goes back to the beginning of the last century, however, this technique received widespread in our country in the postwar period. Of course, a long time has passed since then, and the design of the machines has been significantly improved.
As a result, modern truck mixers have a number of additional functions. In addition, they can be equipped with a device for heating the mixture and thermal insulation, which allows the concrete not to freeze at low temperatures.
Thus, we can distinguish three main purposes of this type of equipment:
- Production of concrete mixes from dry components in the process of transportation from a special installation to a construction site.
- Preparation of mortar at the construction site.
- Transportation of concrete solution with periodic mixing to the construction site.
Note! Modern auto concrete mixers can be operated at ambient temperatures from -20 to +40 degrees Celsius.
Virtues
Use in the construction of this type of technology has several advantages, among which are:
| Versatility | The truck-mounted truck can provide concrete with both a small private construction and a large multi-storey facility. |
| Mobility | As mentioned above, the main advantage of these machines is the ability to transport concrete over long distances. A fully loaded car can move at a speed of about 60 km / h. Moreover, in the process of transportation the material is not exposed to the environment. |
| Rate of concrete preparation | The machine allows for a short time to prepare the solution at the construction site. |
| Unloading convenience | A concrete truck with a sleeve can not only deliver the mortar, but also pour it into the formwork. |
| Efficiency | Since the preparation of the solution occurs during the delivery process, its price is lower than when it is manufactured on stationary equipment in the factory. |
Tip! If it is impossible to ensure the approach of the equipment to the place of pouring, use a special pump to deliver concrete with flexible hoses.
Types of truck mixers
Mixers are of different types, as intended for different construction works.
Basically, their differences are in the following points:
- In the location of the mixing container and the direction of discharge of the solution. Unloading can be carried out back or forward. In the first case, the instruction manual of the concrete mixer requires the participation of the operator during unloading.
If the concrete is unloaded backwards, the driver can manage this operation with his own hands.
- In the type of drive mixer. It can be mechanical, hydraulic or hydromechanical. The most popular lately are concrete mixers with hydromechanical transmission, which allows you to adjust the frequency of rotation of the drum.
- Another important distinction of concrete mixers is the volume of the mixer of the mixer truck, which ranges from 1.5 to 12 cubic meters.. For a small private construction of a fairly small concrete mixer for several cubes.
If the object is large, then use an auto mixer with a drum capacity of 9-12 cubic meters. In some cases, several machines are used simultaneously for delivery and preparation of the solution.
- Also the difference lies in the type of chassis. The mixer can be installed on the platform of a truck, or made in the form of a semi-trailer. It should be noted that the number of chassis axles depends on the volume of the tank, so for high-volume mixers use three-axle or even four-axle chassis.
Note! The greater the volume of the tank, the greater the height of the truck. Attention should be paid to this parameter if the access to the object is limited in height by any obstacles.
Auto Concrete Mixer Device
Device mixer
On cars use gravity reverse mixers with a drum made in the form of a pear. The drum must have a slope to the horizontal plane at an angle of 10-15 degrees.
Inside the tank there are spiral blades. When the drum rotates in one direction, they ensure the mixing of the solution, and when it rotates in the other direction, the solution is completely unloaded.
It should be noted that modern truck mixers are equipped with a water supply system that will allow the drum to be washed from the remaining mixture. They may also have features such as weighing and dosing. This allows you to prepare high-quality concrete with certain technical characteristics.
Platform
As platforms usually use serial trucks. Among domestic vehicles, KAMAZ vehicles are the most popular. Moreover, they are widely distributed not only in the CIS countries, but also beyond their borders.
Also, Kraz and MAZ cars are often used as platforms for concrete mixers. Among foreign brands, Iveco, MAN, Scania, etc. are very popular.
Conclusion
Concrete truck, in fact, is an alternative to bulky stationary installations for the preparation of concrete, but unlike them, it has mobility. In addition, a large variety of types of concrete mixers, allows them to provide concrete with virtually any type of construction projects. As a result, these machines are one of the most common types of construction equipment (learn here how to pour concrete floor yourself).
From the video in this article, you can get more information on this topic.