Patent ID: 6224162
Filing Date: 2001-05-01
Classification: E01C

Abstract:
Apparatus for the hydrodemolition of a concrete surface, comprising:(a) a vehicle capable of movement along a direction of travel in incremental steps;(b) a bed extending transversely to the direction of travel of said vehicle;(c) a nozzle assembly so constructed to achieve hydrodemolition of said concrete surface having a plurality of nozzles spaced apart in a direction transverse to said bed wherein each nozzle is oriented so as to direct a fluid jet emitted therefrom at said concrete surface having its axis of flow at an acute angle to a notional line coincident to an axis of said nozzle perpendicular to said concrete surface and said nozzles are one of rotatable or oscillatory, whereby each nozzle cuts a swath of concrete by hydrodemolition; and(d) means for moving said nozzle assembly back and forth along said bed.