Hydro demolition is a controlled concrete removal technique that uses high-pressure water jets (typically 15,000 to 40,000 PSI) to penetrate the concrete's pores. The resulting internal pressure causes the concrete to "pop" or break away without damaging the underlying steel reinforcement.

Unlike percussive tools, hydro demolition is vibration-free. This eliminates the risk of "micro-fracturing" (bruising) the remaining sound concrete and ensures the structural integrity of the rebar is maintained.

High-Pressure (HP) water jetting operates between 10,000 and 25,000 PSI, ideal for general concrete removal. Ultra-High Pressure (UHP) exceeds 25,000 PSI (often reaching 40,000+ PSI) and is used for precision cutting, coating removal, and extremely hard concrete.

No. The water pressure is calibrated to remove the cementitious material while leaving the steel reinforcement intact and cleaned of rust/chlorides, providing a superior bonding surface for new concrete.

Yes. WJS utilizes specialized robotic systems and manual lances designed for precision work on bridge piers, tunnel ceilings, and dam walls.