ABUTMENT WALL: The abutment walls were seriously deteriorated from salt and snow, which is plowed up against the wall during the winter months. The rebar was exposed and... |
AZ DOT - DRY HYDRODEMOLITION: The bridge decks repaired for this project are located over the Virgin River. Containment of the water and debris from the demolition process was an environmental concern due to Virgin River’s protected status... |
BETHESDA AQUEDUCT: This project involved cleaning the interior of the tunnel and installing a 3-inch thick wire mesh reinforced lining. Initially the cleaning was performed using hand lances, however this proved to be slow and... |
CANYON FERRY DAM: Over time, the flow of water through the spillway has seriously eroded the floor of the spillway at the Canyon Ferry Dam. The erosion ranged from only several inches deep to 2-feet deep in the center. The water in the spillway is 50-feet deep. The Bureau of Reclamations decided that it would be more cost effective to repair... |
COOP CITY GARAGE: Parking Structure was waffle slab construction. Removal ranged from 3.5 to 4.0 inches to remove the entire dome. This was a... |
GRANDVIEW PLATFORMS: Scenic overlook platforms in Pittsburgh, Pennsylvania. |
HIGH SPEED HYDRO SCARIFICATION: In order to provide a better bond between the existing concrete and the repair overlay, high speed hydro scarification was used to remove micro fractures, provide a 1/4" profile, and leave a rough bondable surface. The first pass of the removal... |
HIGHWAY TUNNEL OVERHEAD HYDRODEMOLITION: This picture shows the bulk of the shotcrete removal almost completed. The overhead removal was just under 18' high. The overall result was to significantly reduce the need for hand chipping using jackhammers and virtually eliminate the possibility of fracturing the ceiling of the tunnel. |
HYDRODEMOLITION OVER BOX BEAMS: On precast concrete beam structures, contractors and engineers have been concerned about the impact of jack hammers on the integrity of these beams during restoration projects. Penn DOT specified a maximum jackhammer size of 30 pounds for removal of the deck. The general contractor thought of hydrodemolition... |
ID DOT: The Idaho DOT had this bridge deck scarified in preparation for a micro-silica overlay. The rough profile helps to... |
JERSEY CITY VIADUCT: Rampart removed approximately 2,200 cubic meters of concrete encasement from the substructure of the Jersey City Viaduct leading to the Holland Tunnel. Much of the... |
KENNEDY CENTER: The project involved the removal and replacement of the top 4-inches of concrete on all three parking levels at the Kennedy Center Garage. In areas where full depth was required the slabs were first hydrodemolished 4-inches from the underside... |
LA -WATER TREATMENT PLANT: Project involved the restoration of the entire existing secondary treatment plant. Rampart removed between ¼ and ¾ inch of existing deteriorated concrete from the... |
MI- DOT BRIDGES: Rampart provided hydrodemolition and vacuum clean up services for this MI DOT project that included multiple bridges, on and off ramps, and... |
NJ-DOT HIGH STRENGTH CONCRETE: Compressive strengths taken prior to the start of work showed that the average compressive strength of the bridge deck was 10,400-psi. To tackle the strength of this bridge, Rampart sent a... |
OR-DOT SCARIFICATION WITH VACUUM CLEAN UP: Water and debris were vacuumed from the hydrodemolition unit continuously during the operation. A rough profile was exposed by the hydrodemolition process, creating an excellent... |
PA TURNPIKE: Parapet Wall Hydrodemolition: |