The stables at Silverton are magnificent. They were in full view of the house and were designed to be imposing. The whole was intended to be Stucco but it never was. The portico faced the main house and has no entrance behind it. The pillars are surmounted by "safe" lintels of flagstone. Brick arches carry the main load. There is a band of "cement" mortar through the arches and about 3 courses above them.
Wrought iron cramps tie the lintels end to end. These have corroded and lifted the whole pediment about 2mm so the whole structure is supported on about 10000mm2 of iron at each pier.
Can the corrosion be arrested by cathodic protection?
Cathodic protection requires the use of an electrolyte. Generally this is the ground, but most any medium with water present will work. So by definition CP will not work in air. Iron or steel will rust or corrode in moist air, but CP would be ineffective.
Posted by: Andy Pellet | December 27, 2005 at 11:02 PM
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Posted by: ellaela-bc | March 26, 2009 at 03:43 PM