When renovating and maintaining structures, buildings, monuments and facades, it is not uncommon to be faced with the challenge of having to remove damaged concrete in order to re-shutter these areas in the further course of the work and then pour new concrete. With water jet systems, concrete can be removed layer by layer up to the complete exposure of the reinforcement. Systems can be combined and adjusted in such a way that different water jet strengths are possible and a correspondingly large or small amount of material can be removed at once. A spot-jet nozzle or a MASTERJET rotor jet can be used for this purpose. High-pressure systems and application systems from Hammelmann form a complete package for cost-effective operation.
Gentle exposure of iron or steel reinforcements as well as structural steel meshes is a major advantage when processing concrete with modern water jet systems. In this process, only the damaged concrete is removed until the reinforcement is partially or completely exposed. The steel remains completely undamaged after exposure and the surface to be processed is optimally prepared for further work steps. Water jetting also enables precise work on specific areas of a concrete surface. This enables precise exposure and even complete breakthroughs in the wall.
A high-pressure spray gun can be excellently used in combination with a MASTERJET rotor jet for roughening different concrete surfaces. Equip your nozzle with 2, 3, 4 or 6 inserts and decide for yourself the degree of roughening. The water pressure is distributed evenly over the number of nozzles fitted. With 6 nozzle inserts, you therefore exert significantly less pressure on the surface to be processed than with 2 nozzle inserts. According to this rule, you can decide for yourself whether you want to roughen the surface more finely or coarsely.
Configure your high pressure spray gun for your daily challenges. Available in mechanical, electrical and bypass versions and a variaty of accessories.
When working with concrete, the focus is on the safety and ergonomics of the user. From cleaning to exposure, at Hammelmann you have many options available.
AQUAJET® diesel units are available as road-going or stationary units, as basic units or in a container - individual built for all your requirements.
Clean a wide variety of surfaces quickly and in a predictable way. With the semi-automatic cleaning system you have less effort but more time and money!