The hydrodemolition robot is the most versatile piece of machinery in terms of the types of materials in can remove. It has no problems cutting concrete, but can also be fitted with a spray bar much like the mower, and used for membrane removal or light scarification. As with all of the ultra high pressure tools, contact time can be changed in order to affect the level of removal. In the case of the robot, contact time with the surface is determined by the traverse (side to side), and advance (forward motion) of the unit and cutting head. Go to Rampart Hydro Services web site to learn more about the robot.