Remove or roughen concrete with high pressure when renovating

Highlights

Removal without substrate damage
Ideal preparation for renovation
Complete preservation of the reinforcement

Reinforced concrete is one of the most widely used building materials. But even reinforced concrete gets gnawed away by the ravages of time. The substrate must be prepared for renovation prior to repairing damaged concrete. DYNAJET ultra-high-pressure cleaners manage this effortlessly and quickly.

Man in protective clothing working with a DYNAJET ultra high pressure lance on a concrete wall and removing the top layer. The 2800 bar are generated by a DYNAJET UHP 220.

A man works on a dam wall with a DYNAJET UHP 220 ultra-high pressure cleaner and a rotating lance. The concrete is being removed for restoration

Close-up of a man preparing a dam wall for restoration with a DYNAJET ultra-high pressure lance and 2800 bar.

Picture of a dam. The movable concrete wall is being prepared for rehabilitation by a man with a DYNAJET high-pressure lance and the subsoil is being removed.

A heavily soiled bunker silo is cleaned with a DYNAJET 800th high-pressure cleaner. A man works on the wall of the bunker silo with a DYNAJET high-pressure lance.

A man works on the floor of a parking deck with a DYNAJET high pressure lance. The pressure for roughening is generated with a DYNAJET 800th high-pressure cleaner.

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Substrate preparation prior to renovation of reinforced concrete structures

From cleaning concrete, removing coatings or roughening up, to deep removal of concrete – the water-saving ultra-high-pressure cleaners from DYNAJET let you work precisely, quickly and in an environmentally friendly way.

Selective removal of individual layers
Vibration-free and gentle
Single-step substrate preparation
Perfectly structured substrate
Water-saving
Dust-free work in residential areas

Removal of concrete layers

Treat old concrete layers gently and vibration-free using high-pressure water jets. Works anywhere – in bridges, tunnels, multi-storey car parks or sports stadiums. DYNAJET lets you quickly and precisely remove pollutants, bitumen residues or other coatings, as well as expose the underlying reinforcement.

Old concrete is broken up effortlessly and the reinforcing steel cleared of rust – all without damaging the reinforcing steel. The DYNAJET ultra-high UHP220 pressure unit is ideal for this, boasting a maximum pressure output of 3,000 bar. Stress cracks, traditionally associated with processing using conventional methods, are almost completely avoided.

Effectively roughen concrete

Blasted concrete needs a correctly-prepared surface for renovation, which entails removing the damaged concrete beforehand. In addition, the reinforcement must remain untouched. And last but not least – all corrosion on the reinforcing steel must be completely removed.

Gentle high-pressure water jetting with the DYNAJET UHP220 at up to 3,000 bar allows you to achieve all this quickly and effortlessly in a single step. The result – a roughened surface which is ideal for the new concrete to adhere to.