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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. 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

  4. Reduced pressure zone device - Wikipedia

    en.wikipedia.org/wiki/Reduced_pressure_zone_device

    A reduced pressure zone device (RPZD, RPZ, or RPZ valve) is a type of backflow prevention device used to protect water supplies from contamination. RPZDs may also be known as reduced pressure principle (RP), reduced pressure principle backflow prevention devices, [1] [2] reduced pressure zone assemblies (RPZA), [3] or reduced pressure principle ...

  5. Sandblasting - Wikipedia

    en.wikipedia.org/wiki/Sandblasting

    Mobile dry abrasive blast systems are typically powered by a diesel air compressor. The air compressor provides a large volume of high pressure air to a single or multiple "blast pots". Blast pots are pressurized, tank-like containers, filled with abrasive material, used to allow an adjustable amount of blasting grit into the main blasting line.

  6. Pressure washing - Wikipedia

    en.wikipedia.org/wiki/Pressure_washing

    A pressure washer is used to remove old paint from a boat. Patio flagstones being pressure washed using a rotary nozzle. Pressure washing or power washing is the use of high-pressure water spray to remove loose paint, mold, grime, dust, mud, and dirt from surfaces and objects such as buildings, vehicles and concrete surfaces.

  7. Drilling and blasting - Wikipedia

    en.wikipedia.org/wiki/Drilling_and_blasting

    Rock blasting in Finland. Drilling and blasting is the controlled use of explosives and other methods, such as gas pressure blasting pyrotechnics, to break rock for excavation. It is practiced most often in mining, quarrying and civil engineering such as dam, tunnel or road construction. The result of rock blasting is often known as a rock cut.