Cast concrete floor with a concrete pump

The casting of a concrete floor with a few square meters and under normal static load can be carried out with a shovel and shovel. For larger surfaces, a concrete pump is recommended, which is usually already included in the delivery of ready-mixed concrete. For load-bearing and traffic-contaminated concrete floors, building regulations must be adhered to.

Pump and gravity

The casting of a concrete floor is normally understood to mean the uniform distribution of the liquid concrete mass conveyed by a pump. Most concrete mixes have a consistency that automatically induces even distribution on the concrete floor due to the effect of gravity and flow forces.

After filling a concrete layer in the pit, a rough smoothing of the concrete floor is required. A concrete pump has the advantage of being able to be switched off easily after reaching the desired amount of concrete or layer thickness. The concrete in the tank or in the mixer is obtained in processible consistency.

Reinforcements easier to integrate

Especially when implementing reinforcements in concrete such as steel mesh, the concrete pump is the ideal working tool. After placing the reinforcement elements on a moist already cast layer, the application of the next layer by the corresponding movement of the concrete dispensing nozzle is easy. For reinforcements, the even distribution and compaction of the concrete is important.

Even if the concrete floor itself is made, lending a concrete pump is recommended for areas of more than five square meters. In addition to the more precise mixing ratio, which in some cases must follow construction regulations, the introduction of the concrete is much less expensive.

To pour a concrete floor with a pump

  • Ready-mixed concrete or
  • Cement and
  • Sand and
  • Supplements
  • water
  • Concrete pump with mixer unit or
  • concrete mixer
  • puller
  • Glättleiste
  • shovel

1. Mix concrete

Fill the precast concrete and water or the self-assembled mixture into the mixing unit of the concrete pump or an external mixer.

2. Let the pump suck in

Let the pump suck in the mixed concrete until the first "concrete drops" emerge at the outlet nozzle.

3. Pour

Pull the nozzle on the hose handle evenly over the casting surface. In case of irregular discharge, try to keep hilly elevations to a minimum.

Tips & Tricks

An inexpensive alternative to lending a concrete pump is a concrete filling bucket. It is hung over the surface to be cast and must be filled by hand.

Video Board: concrete pump / slab casting with pump