Steelwork Corrosion Control

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Steelwork Corrosion Control


Many Resident Engineers for major building projects nowadays echo the
sentiment that ‘Painting amounts to 10% of the job but provides 90% of
the problems.’ Yet at the same time there are, unquestionably, large areas
of coated steelwork withstanding the most adverse conditions for surprisingly
long periods. A typical example is the coating of offshore platforms
in the North Sea. Even in less exotic circumstances, for example bridge
structures inland, engineers have successfully extended repainting cycles
by as much as three times compared with practices of only thirty years ago.
The majority of coatings used nowadays have considerably improved
properties over the materials used then. However, this is not the sole
reason for the success.
It could be said that corrosion prevention of steel structures is an aboveaveragely
dangerous occupation in the construction industry. Most of the
coating materials used are flammable, toxic and explosive. Methods of
surface preparation involve propelling hard particles at high velocity into
the atmosphere. Additionally there are the normal perils of falling from
heights or being hit by falling objects. Everybody concerned therefore
must be responsible for their own safety, report unsafe practices to the
appropriate authority and follow all the required national and industrial
safety rules and requirements.
The current trend in practically all countries is to increase the scope and
tighten the limits of any legislation on matters of health and safety. In any
commercial organisation involved in the construction industry, there
should be a person, or persons, solely concerned with health and safety
matters. It is from this source that advice should be obtained for specific
working practices
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