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Concrete Pump: A Go-To Guide

A concrete pump on a construction site

A concrete pump is a heavy machinery apparatus that is used for pumping and transferring liquid concrete. The construction equipment is ideal for fast transfer of concrete in construction sites, including the inaccessible ones.

Using specialised concrete pump operator for the construction projects considerably reduces the dependence on manual labour as the concrete can be poured easily at the required location without the need of too much handling.

A concrete pump thus saves on overhead costs, precious working hours as well as energy. What further adds to the advantage of these machines, is that they are highly reliable, provides assured high-quality result, and is not affected by adverse weather conditions.

Types of Concrete Pump Trucks

Below mentioned are the different types of concrete pump trucks used at construction sites:

  1. Truck-Mounted Or Boom Pumps
  2. Line, Stationary Or Trailer Pumps
  3. Specialised Pumps

1. Truck-Mounted Or Boom Pumps

These pumps are considered to be revolutionary alternatives to the traditional line-concrete pumps. They have a robotic arm, called the boom, which is attached to a concrete pump truck or a semi-trailer. The remote-controlled arm is used to accurately place concrete in the required portions of the construction site.

These pumps are ideal for big construction projects which require pumping of large volumes of liquid cement and cannot entirely depend on the manual labour. It thus saves on labour and speeds up the process.

2. Line, Stationary Or Trailer Pumps

These pumps are mounted on a trailer and have rubber and steel hoses attached to the outlet. Depending on the location of the site and its concrete application, additional hoses and pipes are connected as extensions.

They are used for the concrete application in smaller places such as home concrete slabs, sidewalks, swimming pools, etc., as the pumps produce liquid concrete at a lower rate than the boom pumps mentioned above.

Operating these machines is labour intensive as the hoses are required to be manually carried to the location of concrete application.

3. Specialised Pumps

Some concrete pumps are designed to meet the specialised needs of specific job sites such as tunnel and mines. Other kinds of concrete pumps are rail mounted, skid-mounted concrete pumps, which are highly skilled and cost-intensive. Hence, they are commonly not used for construction purposes.

Mechanism of a Concrete Pump Truck

As concrete is heavy, abrasive, and full of rocks. It runs the chance of solidifying quickly and hence requires to be kept moving continuously. Therefore, piston pumps are used to generate hundreds of atmospheric pressure that push cylinders with concrete mixes.

The concrete thus produced is discharged through a mesh gate onto the hopper of the concrete pump truck. This mesh gate sieves the concrete and removes the large chunks of rocks, thus avoiding the chance of clogging the hoses of the pump truck. The hopper constantly keeps churning the cement to keep it flowy in texture.

As soon as the concrete is ready in the hopper, it is pulled into the valve system in strokes. With concrete slowly entering, the older concrete that is already present starts to get pushed out through the pipe into the boom of the concrete truck and further until it reaches the end of the hose where it pours out on to the surface where you need it.

The concrete pump primarily uses both electric and hydraulic system to pump the wet concrete through the pipes and hoses onto the designated location. The front jack and the outriggers provide stability during the pumping action, which can be steered by means of the outrigger controls situated on the concrete pump’s sides.

Different types of concrete pumps are equipped with different types of valves, such as ball valves, s-valves, etc., but the pumping process of the concrete remains the same. With the hopper full and no blockages in the hoses and pipes, the pumping process works smoothly and delivers excellent results.

A concrete pump is at the centre of all construction projects. The uniqueness of its design makes it an essential equipment for not just keeping concrete in its liquid form but also ensuring that it is pumped to the necessary parts of the construction site without manual intervention.

Therefore, a thorough understanding of the working of the concrete pump can aid in selecting the machine best suited for your construction project.

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