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The corrosion process.  

The corrosion process.  

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Figure 1: Gloucester Road Underground Station.
Figure 2: The corrosion process.  
Figure 3: Typical construction detail.  
Figure 4: Corrosion of a masonry encased wrought iron beam.  
+4 Figure 5: Damage due to steel frame corrosion.  
An innovative cathodic protection system for steel framed heritage structures
Conference Paper
Full-text available
  • Jul 2015
The corrosion of early 20th century steel-framed buildings is resulting in serious damage to the integrity and appearance of many historically important structures. Since the application of cathodic protection to steel framed buildings in the late 1990s it has been proven to provide a low intrusive and aesthetically acceptable technique for the con...
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Context 1
... reality, when a metal corrodes, anodic and cathodic areas can be formed on a single surface in contact with the aggressive aqueous environment. This is shown in Figure 2. As a result, corrosion can occur at a large number of sites over the surface of the metal. ...

Citations

... Meanwhile, carbon-based SFRG was used as an innovative cathodic protection (CP) system on historical steel framed buildings. This system was first applied at Leeds Civic Hall, a magnificent steel-framed, Portland stone clad Grade II-listed building that was built in 1933 [29]. The installation, comprising both the conductive geopolymer and a conventional rod anode CP system, was placed at the rear façade. ...
... Monitoring of the system showed that the geopolymer CP system achieved effective protection to the steel frame as the conventional CP system. Likewise, SFRG CP system was installed at the main entrance in a historic Kansas City building, Missouri, USA that was built in 1906 [29]. Although the facade remained in good condition, by the start of the new millennium it was showing signs of corrosion to the steel frame and cracking of the granite at the grand main entrance. ...
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