Hydrodemolition, or hydro demolition, is a concrete removal technology that employs high-pressure water to remove damaged concrete, as well as asphalt and grout. This method creates a great bonding surface for repair and new coating applications.
Conjet’s concrete hydrodemolition robots use a high-pressure water jet, which travels over the concrete surface at a constant speed, taking advantage of the concrete’s permeability to create an overpressure that breaks it apart. The automation of the hydrodemolition robots allow operators to easily execute both selective and non-selective removals.
Selective removal is the preferred method when only the deteriorated concrete needs to be removed. Our concrete hydrodemolition robots use high-pressure water up to 22,000 psi (1500 bar) to selectively remove concrete at a predetermined quality level.
Non-selective removal (also known as “hydromilling”) is the preferred method when concrete needs to be removed to a predetermined depth, independent of the quality of the concrete. The ACR™ robot uses high-pressure water above 22,000 psi (1500 bar).
No matter what option you choose, the high-pressure water jet technology will create a rough surface optimal for bonding of new concrete without creating any micro-cracks or damage to the remaining structure. At the same time, the hydro demolition technique leaves the rebar intact and cleaned from rust and corrosion.
With Conjet ACR™ robots, you control the end result, always ensuring you meet the customer’s specifications.
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