Optimising Electrochemical Remediation For
Historic Steel Framed Structures
Author(s)
P. Lambert
Abstract
The problem of damage to historic steel framed structures as a result of corrosion
is now widely recognised in Western Europe, America and Australia. Structures
built in the late 19th or early 20th century are at greatest risk, together with earlier
buildings that have received modifications or structural interventions during this
period.
Traditional methods of repair are often too intrusive and too expensive to
consider. As a consequence a number of important structures are at risk of
incurring extensive damage to their stone and faience finishes that may require
replacement with new, non-original elements.
Cathodic protection (CP) has been seen as a possible electrochemical solution
to the problem of steel frame corrosion and has been in use in the UK and
elsewhere for several years. In the absence of formal guidance and standards,
most installations rely on the skill and experience of the designers and installers
to ensure effective remediation.
To assist in the development of such guidelines, the Royal Society has
supported a four year research programme into the use of CP on historic
structures, carried out at the Centre for Infrastructure Management at Sheffield
Hallam University.
This paper describes the completed study, its results and conclusions and
shows how modelling of the processes has helped identify the key factors in the
successful application of this technique to achieve maximum protection with
minimum disruption to the original structure.
Keywords: steel framed structures, metallic corrosion, numerical modelling,
cathodic protection.
Keywords
steel framed structures, metallic corrosion, numerical modelling,
cathodic protection.
Related Book
Other papers in this volume
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