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Step 1.- preparation of the land

We can find two types of soils for the application of printed concrete: rigid, whether concrete, asphalt or cement, and soft earth soils. In the first case, we are clear, we already have a rigid support, where as a general rule, we are not going to have subsidence of the ground and which are usually level.

If these rigid soils are very deteriorated, it would be advisable to level them with a structural repair mortar such as Hormiplus or Hormirep , depending on the size of the gap to be filled. Even so, we recommend a mesh between the support and the new concrete and applying a bonding bridge for concrete or asphalt or even cement, to strengthen the bond between them. For this option, we will use the Weberprint TP05 , a magnificent bonding bridge for porous materials.

If we have a support, such as earth or grass, level and compact the ground, so that the 10 cm layer of concrete sits correctly on the ground. The mesh will give consistency and strength to the lower part of the concrete. It is in this type of terrain that we have to put the most emphasis on leveling and compacting the terrain. It is key to ensure that the concrete cracks or fissures as little as possible. Of course, if we have grass, it must be completely removed, leveled and compacted.

Step 2.- formwork and preparation of the environment

Whether we want to work large areas of concrete, or parcel out small pieces, it is essential to use formwork to segment or cut out the parts to be concreted. There are several types of formwork on the market, but if you do not have them, you can use wooden slats, held in place by nails. In this way, when you are going to carry out small pieces of concreting with a concrete mixer, you will use that same wooden formwork as expansion joints.

Make sure you choose the slats with the necessary height you require and of a resistant but thin thickness. If the formwork ends on a support that we are not going to use, we can put thicker slats if we have them.