Hydrodemolition

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Hydrodemolition is a concrete removal technique which utilizes high-pressure water to remove deteriorated and sound concrete. This process provides an excellent bonding surface fro repair material. First developed in Europe in the 1970's, this technology has become widely accepted for concrete removal and surface preparation throughout Europe and North America. Hydrodemolition can be used for horizontal, vertical, and overhead concrete removals and surface preparation on reinforced and non-reinforced structures. It is effective in removing concrete from around embedded metal elements such as reinforcing steel, expansion joints, anchorages, conduits, shear connectors, and shear studs. Hydrodemolition can be used for localized removals where deterioration is confined to small areas and for large area removals in preparation for a bonded overlay. This technology can also be used to remove existing coatings from concrete. (International Concrete Repair Technical Guidelines No. 03737)

This technology has been used on the following types of structures: Bridge decks and substructures,
parking structures, dams and spillways, water treatment facilities, tunnels and
aqueducts, nuclear power plants, piers and docks, stadiums, warehouses, transfer stations, and retaining walls.