Process gas concrete blocks - that's what matters

Concrete blocks are very easy to work with and are suitable for DIY. Nevertheless, you should know some important rules. Everything about the tools needed, about water barriers and the proper handling of thin-bed mortar is therefore explained in this article.

Tools for processing aerated concrete blocks

Due to the properties of aerated concrete blocks, their processing is very simple and also requires less tools compared to traditional walls.

But in any case:

  • saw
  • corner
  • rubber hammer
  • KIT trowel
  • possibly a mortar sled
  • a stirrer for the drill
  • spirit level

Process gas concrete blocks - that's what matters: blocks

The agitator is extremely important. It excludes aeration of the mortar when mixing safely. Air pockets must be avoided with the thin bed mortar. When using with the drill, always stir slowly.

Saw and angle are used for the exact cutting of the aerated concrete blocks. Especially the angle facilitates the exact cutting enormously.

The KIT trowel corresponds in its dimensions and in its thickness to the particular stones used and the required throat thickness. So it has to be bought appropriately.

The rubber hammer stabilizes the stone on the mortar without damaging it. A knocking after setting each stone is essential.

Proper handling of gas concrete blocks

Each stone must be placed exactly perpendicular to the wall. Attention must be paid to the narrowness of the joints and the fitting of the tongue and groove connection. The correct orientation of each stone must be checked with the spirit level.

Gas concrete bricks are always walled up in half - ie offset by half. It is important to pay attention to this.

The mortar must be applied in exactly the same layer thickness. A mortar sled can be very helpful for this. Depending on the type of stone and the wall, the layer thickness can be between 1 and 3 mm.

If the mortar application even slightly unevenly high, the establishment of an exact wall is no longer possible. Therefore, the position of each stone after setting with the spirit level must be verified both horizontally and vertically. For a uniform mortar application and a mortar sled can be very helpful.

The construction of a horizontal barrier with special insulation foils is very important when building with aerated concrete blocks.

Tips & Tricks

To create slots for electrical cables and to cut out the recesses for sockets are available after completing the wall special tools that allow a very simple work.

Video Board: Kengo Kuma, “From Concrete to Wood: Why Wood Matters”