Structure: Bridge DeckRemoval: 3,100 sm @ 25mm Owner: Idaho Dept. Of TransportationLocation: Boise, ID Contractor: Concrete Placing Company, Inc. Boise, IDThis photo illustrates the profile created when hydrodemolition is used to scarify a bridge deck. The coarse aggregate ranged from 1" to 2". The Idaho DOT had this bridge deck scarified in preparation for a micro-silica overlay. The rough profile helps to produce an excellent bond with the overlay material.
Bond strengths typically exceed 250 PSI with tensile bond failure taking place in the existing concrete.
