Advantages

Follow the flow

Our Hydrodemolition equipment comprises tough, durable high-end products, built to operate over a long period of time. Since our establishment in 1988, we have constantly been improving our products in terms of design, functionality and technology.

The Hydrodemolition technique offers numerous outstanding benefits in comparison with the more traditional use of handheld water jet equipment, milling machines and jackhammers.

Get powered up

A basic Hydrodemolition operation usually consists of two main units: the Power Pack – a high-pressure pump/engine combination that creates water pressure and water flow – and the Aqua Cutter – a programmable robot that handles the positioning of the high-pressure water jet. The two units are connected to each other and to the operator by one single radio remote control. Simple and with no need for extra cables or devices.

Follow the flow

The high-pressure water is delivered from the high-pressure unit to the robot through a flexible high-pressure hose. The water then travels through a lance. It is the lance that manipulates the water jet to move, oscillate and attack the concrete in the most optimal way, depending on the type of removal required.

When the water leaves the lance it goes through the end part, the nozzle, whose opening is sized according to the pressure and flow requirements. The high-pressure jet of water penetrates the weak concrete as it passes across the surface and breaks up the damaged concrete and flushes it away. The robot works automatically on the desired surface removing selected concrete areas. All that is then needed is a final clean up to remove debris and water, leaving the clean, rough surface ready for the new concrete pour.

Lance angle

When the pressurized water penetrates the concrete it fills upp the cavities. The pressure then causes small fragments of the concrete to shatter. And by using different angels of the lance you can get a good even result. Since there are no vibrations there will be no micro cracks in the nearby concrete.

One of many advantages of using hydrodemolition is that you don’t get any dust in the air that will harm your lungs.

Maximized efficiency

The high-pressure water jet’s efficiency is maximized by a number of key parameters.

  • The jet’s movement and the angle of attack.
  • Shape and configuration of the nozzle.
  • Water exit speed, pressure and flow.
  • Distance from the nozzle to the point of impact.
  • The jet itself must be stable, and stability is influenced by the
    machine’s design.

It works better if you add water

hydrodemolition aquajet systems water technique technology concrete rebars aqua cutter jet
The water jet penetrates existing cavities and cracks.
hydrodemolition aquajet systems water technique technology concrete rebars aqua cutter jet
By exposing the concrete with the water jet for a certain time you reach the desired depth.
hydrodemolition aquajet systems water technique technology concrete rebars aqua cutter jet
By changing the angle of the lance the remaining material under the rebar (the shadows) will be removed. With the EDS system the impact force of the water jet is maximized.
hydrodemolition aquajet systems water technique technology concrete rebars aqua cutter jet
A perfect removed area of detoriated concrete which now are ready for a new layer of concrete.