Hydrodemolition on a Slippery Slope!
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Hydrodemolition on a Slippery Slope!

Updated: Dec 30, 2022

A number of Technical and Operational issues had to be addressed during this refurbishment project on a major UK Reservoir

Extreme Hydrodemolition!


This technically challenging Project centred on a 60 Million Cubic Metre Capacity Reservoir. The task required the selective removal of bulk sections of defective concrete from the roof, sides and floor of its steeply inclined Overflow Sluice.

Gnat Demolition UK, working closely with the main contractor, devised a new method to safely access the sluice, deploying their Aquajet Hydrodemolition robots.


Operating remotely - and from a safe distance, our operators were able to safely operate the robots on the slope, systematically removing the defective concrete from the top down, whilst leaving the Rebar intact and ready to receive new steel and concrete.



Environmental Considerations

Being part of the Nation's water infrastructure, strict operational guidelines were in place to ensure the minimum risk of contamination. The Blast water produced was collected and processed through our Siltbuster Filtration Systems to restore PH Balance and minimise contamination.


As well as being an efficient and cost-effective procedure, Hydrodemolition also offers many environmental benefits - Noise Pollution is greatly reduced compared to Jackhammers and Peckers. The Operator doesn’t have to worry about flying debris, dust pollution in the air, or the potential risk of silicosis.


Robotic Hydrodemolition - The Clear Advantages

• 25 x Faster & 3 x Quieter than Hand-Held Jack

Hammers

• Fully Articulated Heads enable safe operation in

Horizontal, Vertical & Overhead Planes

• Accurate Total Control up to 3000 Bar

• Rebar Cleaned & Rescaled without damage

• Fantastic Production Rates

• Up to 3 x Extended Life concrete repairs

• Approved for EN1504 European Standards

• Eliminates Micro-Fractures

• Superior Surface Bonding

• 30% Labour Savings



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