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Piling and
Accelerated Low Water Corrosion (ALWC)
Quest has been
associated with the phenomena of ALWC since it was first identified
in Poole Harbour some 20 years ago. Quest has the capability and
track record for dealing with the problem. This can be
re-piling,
ensuring that the new piles are protected with appropriate paint
coats and driven carefully and inspected underwater with any damage
made good using underwater paint coatings. Calculations are made and
sacrificial anodes attached using the Hammerhead underwater welding
technique.
Another method is
to identify holes and thin areas of pile by taking underwater
ultrasonic thickness measurements. Steel plates cut to size and
welded in to position underwater then cover holes and thin areas.
Underwater paint is then applied to bare metal areas and sacrificial
anodes placed.
Recent tasks
include
Surveys of
Weymouth and Poole Harbours
Proposals for
Lagos and Port Harcourt
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