The advantages of using hydrodemolition from:
• The owner’s point of view are that they will get a structure that will last much longer before a repair is needed. The structure will also require a shorter repair period and will be operational earlier.
• The consultant’s point of view are that they will suggest the best existing method on the market, and they will then increase their reputation on the market and probably receive more projects.
• The contractor’s point of view are that they will be using hydrodemolition equipment to make sure that the owner gets the highest quality repair. Furthermore, it is ensured that they will not be exposed to warranty issues since the repair will be properly done.
Factors that contribute to these advantages:
Structurally:
• Low or no impact on the structure
• Rough surface
• No micro-cracks
• Cleans reinforcement (no rust or scale)
• Creates a superior bonding
Financially:
• Increases productivity
• Less interference in the infrastructure
• Extends the life of the structure
• Cuts the cost for maintenance over time
• Safety and less labour
If you would like to know more about this topic, check out the guide “Why use hydrodemolition?”, produced by the European Water Jetting Institute, with the contributions of AQUAJET and CONJET, EWJI members.
Hydrodemolition is a technology that removes concrete selectively with high-pressure water without causing damage to the remaining structure. “Selectively” means that the weak concrete is removed down to a pre-set quality level while the good concrete remains.
The contents of the guide are of an informative nature, placing emphasis on the advantages of hydrodemolition.