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  2. Hydrodemolition - Wikipedia

    en.wikipedia.org/wiki/Hydrodemolition

    Robotic Hydrodemolition in Folkestone, UK. Hydrodemolition of concrete exposing the rebar.. Hydrodemolition (also known as hydro demolition, hydroblasting, hydro blasting, hydromilling, waterblasting, and waterjetting) is a concrete removal technique which utilizes high-pressure water, often containing an abrasive material, to remove deteriorated and sound concrete as well as asphalt and grout.

  3. Hydraulic mining - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_mining

    Gold miners excavate an eroded bluff with jets of water at a placer mine in Dutch Flat, California sometime between 1857 and 1870.. The modern form of hydraulic mining, using jets of water directed under very high pressure through hoses and nozzles at gold-bearing upland paleogravels, was first used by Edward Matteson near Nevada City, California in 1853 during the California Gold Rush. [3]

  4. Water jet cutter - Wikipedia

    en.wikipedia.org/wiki/Water_jet_cutter

    Uses a high-velocity stream of ultra high-pressure water 30,000–90,000 psi (210–620 MPa) which is produced by a high-pressure pump with possible abrasive particles suspended in the stream. Is used for machining a large array of materials, including heat-sensitive, delicate, or very hard materials.

  5. Waterblasting - Wikipedia

    en.wikipedia.org/wiki/Waterblasting

    Waterblasting or water blasting may refer to: Hydrocleaning , the use of high pressure water for cleaning Hydrodemolition , the use of high pressure water to remove concrete

  6. Water cannon - Wikipedia

    en.wikipedia.org/wiki/Water_cannon

    Water cannon used for crowd control in Jerusalem during the 2020 protests against Benjamin Netanyahu Water cannon during a German demonstration, 2001. A water cannon is a device that shoots a high-velocity stream of water. Typically, a water cannon can deliver a large volume of water, often over dozens of meters.

  7. Water gun - Wikipedia

    en.wikipedia.org/wiki/Water_gun

    A young girl playing with a water gun. A water gun (or water pistol, water blaster, or squirt gun) is a type of toy gun designed to shoot jets of water.Similar to water balloons, the primary purpose of the toy is to soak another person in a recreational game such as a water fight.