Corrosion bug needs careful consideration
Metal-muncher: accelerated corrosion can be prevented
Accelerated Low Water Corrosion – a bacteriological attack on steel – has in the past contributed to the loss of two thirds of the structural design life of many quay walls before major maintenance, says UK specialist Nuttall John Martin.
The company stresses that ALWC can be prevented by the use of cathodic protection since this has been shown to halt attacks. However, the choice of repairs or preventative installations will be affected by the layout and use of the structure. In a badly affected structure there will probably be the need for remedial measures for structural or usage purposes in addition to the consideration of the ‘killing’of corrosion cells.
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