There are many benefits of hydrodemolition over percussive tools, such as:
Hydrodemolition is more precise and can be used to remove concrete selectively without damaging the sound concrete beneath.
It provides a clean surface for repairs, saving time and money.
It is less noisy than percussive tools.
It is less dusty than percussive tools.
Percussive tools can cause vibrations that can damage nearby structures. Hydrodemolition does not cause vibrations.