Concrete Hydrodemolition Briefing Guide

Precision Concrete Hydrodemolition Briefing Guide

Things to consider when deciding to choose a Hydrodemolition service provider:

  • A good supply of potable water is required (Ideally a fire hydrant) 14 cubic meters per day per jetting unit.
  • A suitable area for laydown of plant (Van and trailer combination or truck options are typically 10m in length) – Trailer weighs 2800kg and has certified lifting pints for crane lift.
  • A strong scaffold work platform/enclosure must be created at each work face (Normally clad with debris netting to contain flying concrete pieces)
  • Water jets produce noise – Consider the use of acoustic blankets around each work enclosure to bring noise down to acceptable level (See attached a typical noise survey)
  • Waste water containment, filtration, pH balancing– RGL have our own system for handling this element of the work for you.
  • Waste water disposal: Normally after treatment the water is pumped to foul sewer or surface water drain if appropriate. It may be acceptable to discharge to and excavation and allowed to soak away. Generally this may only be undertaken if the excavation is at least 10m from a water course.
  • Productivity of a precision Hydrodemolition Crew (A two man crew and one Ultra High Pressure Jetting Unit) is typically 0.1 cubic meter volume removal per productive hour of work.
  • Time required for clear up and removal of broken concrete should be allowed for separately.
  • Our Plant is diesel driven and as such requires a well-ventilated area in which to operate.
  • Our Plant should ideally be positioned adjacent to the work face. It may however be operated remotely over 100m from the work face under special circumstances.