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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. This process provides an excellent ...
Ultra high pressure water jet cutters are used to cut a wide variety of materials including granite, concrete (see hydrodemolition), ceramics, fabric and even Kevlar. [15] One such cutter delivers 55,000 psi (380 MPa) through a nozzle 0.003 inches (76 μm) in diameter at 1 kilometre per second, which can cut a person at a close range.
Hydrodemolition, the use of high pressure water to remove concrete Topics referred to by the same term This disambiguation page lists articles associated with the title Waterblasting .
S. Salt-concrete; Saltcrete; Sandjacking; Sarooj; Saturated-surface-dry; Schmidt hammer; Sclerometer; Screed; Segregation in concrete; Self-consolidating concrete
The Washington State Department of Transportation (WSDOT) decided to use hydrodemolition (high-pressure water) to remove unwanted material (the sidewalks on the bridge deck). Water from this hydrodemolition was considered contaminated under environmental law and could not be allowed to flow into Lake Washington. [22]
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The water used in this process was temporarily stored in the hollow chambers in the pontoons of the bridge in order to prevent it from contaminating the lake. During a week of rain and strong winds, the watertight doors were not closed and the pontoons filled with water from the storm, in addition to the water from the hydrodemolition.