Phil Skegg, Ringway Jacobs TMC Transport for London
Transport for London had a problem with severe
corrosion on steel D-rings ( the islands on roads
supporting illuminated beacons) The coatings on
these have to withstand a very harsh environment,
water, road salt and grit. Corrosion works up from
the lower edge approx 50mm below the asphalt
surface.
Power wire brushing was completely ineffective.
We brought in our Quill Falcon Quick
Blast kit. Powering this with a three tool
compressor and using fine copper slag we were
able to blast clean some 50 D rings in a reasonably
short time. We were hampered by poor weather,
traffic management restrictions and short days.
After blast cleaning the whole area was
pressure cleaned and all abrasive and debris
collected and bagged for safe disposal. The steel
ring was then dried using a propane torch. A
power wire brush was then used to remove the
flash rusting prior to applying Amercoat 4376
(HA115)
Finally we applied Leighs Paints Roadline
M6 coating system in white. Swarco Megalux
reflective beads are applied to this methacrylate
coating whilst curing to produce a highly reflective
surface.
Transport for London engineers were
extremely pleased with the work and the results:
