A special floor lining installed in two water tanks in Melbourne in 2005 has performed well, according to the findings of an inspection carried out at the end of last year. This article describes the lining, gives the reasons for its selection and outlines the results of the performance tests. The steel floor plates of a number of Melbourne Water's potable water tanks have suffered severe corrosion and perforation due to the presence of chloride salts in the limestone bedding material. One method of remediation identified is to apply a reinforced organic lining to the steel base.
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