Hydro demolition

Due to the geographical situation in Central Europe, the density of bridges and viaducts is basically extremely high compared to other parts of the world.

To ensure the safety of bridges and viaducts, timely and professional maintenance of the concrete is required. Alternatively, you can remove only the paint layer and apply it back later. For the construction of bridges and viaducts, we relied mainly on concrete as a material, in combination with reinforced iron. In addition to natural aging (the so-called carbonation), it is above all environmental influences (static overloads or salt spreading) that cause damage to the concrete and the reinforcing structures. It is therefore necessary to remove the old concrete so that the old iron reinforcements are freed and cleaned of corrosion, in order to then be able to apply subsequently a new anticorrosive protection and concrete as a covering layer. The advantage in the removal of concrete by high pressure water jets consists in the vibration-free processing, which avoids tension cracks. At the same time, the reinforcing structures itself is also cleaned from corrosion. The partial removal of damaged concrete is performed with a jet of water up to 3000bar and up to 400 liters / min, using special robots or manual lances.