Webinar | KTH Royal Institute of Tehnology / Aquajet

Keith Armishaw, Aquajet’s North American business development manager, and Dr. Johan Silfwerbrand, a professor at the KTH Royal Institute of Technology in Stockholm, team up to discuss Hydrodemolition and bonding. Silfwerbrand, who specializes in concrete, presents research, while Armishaw covers several projects and the results achieved through Hydrodemolition.

What is hydrodemolition

Hydrodemolition is a cutting-edge technique that utilizes high-pressure water jets to remove concrete with precision and efficiency. This method is ideal for a wide range of applications, from surface preparation to structural maintenance, without causing damage to the underlying material. Aquajet’s hydrodemolition equipment is designed to handle the most demanding projects worldwide, offering unparalleled versatility and reliability. With our advanced technology, the possibilities for hydrodemolition are endless, making it the preferred choice for professionals seeking top-tier results.

IMPACT-FREE
VIBRATION-FREE

NO MICRO CRACKS
NO DAMAGED REBARS

IMPROVED SURFACE QUALITY
SUPERIOR BONDING

ENVIRONMENTALLY FRIENDLY

NO SILICA DUST
SAFER WORK ENVIRONMENT

HIGHER PRODUCTIVITY
LOWER LIFCYCLE COST

How does hydrodemolition work?

Hydrodemolition works by allowing high-pressure water to penetrate the concrete’s natural pores and cracks. As pressure builds inside the weakened material, the concrete breaks apart and is removed in a controlled way.

By adjusting exposure time and lance movement, the operator can control both removal depth and precision — from selective removal of damaged concrete to fully controlled cuts.

The result is a clean, rough surface with intact reinforcement, ready for repair or new material application.

Applications

Hydrodemolition is used across a wide range of applications:

  • Infrastructure repair
  • Tunnels and underground structures
  • Parking structures
  • Dams and hydroelectric facilities
  • Industrial plants
  • Underwater and marine environments

Hydrodemolition works vertically, horizontally, overhead, and underwater – making it a highly versatile solution.