by Gregory R. “Chip” Stein, Tank Industry Consultants Welded steel tanks can provide effective
service lives in excess of 100 years if properly
maintained. Proper maintenance of steel tanks includes periodic cleaning and reapplication of a lining that provides a barrier
between the underlying steel and its environment. In almost every case in the water tank industry, this involves abrasive-blasting the steel and applying a coating. The author describes the factors involved in
water tank maintenance painting including coating condition, economics, aesthetics, civic pride and more.
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by Vaughn O’Dea, Tnemec Company, Inc. Concrete that has been distressed from chemically induced deterioration should be properly prepared to achieve a sound substrate prior to the application of protective linings for severe service environments. Concrete surface pH testing is one quality- control method of assessing the appropriate removal of chemical ingress. This article
explores a more appropriate testing procedure for vertical concrete that has been developed.
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