Corrosion and Protection of Steel Piling in Seawater (Classic Reprint)


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Excerpt from Corrosion and Protection of Steel Piling in Seawater There is great need for more data from which to determine the most economical method of protecting steel piling in seawater. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.







NBS Monograph


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Corrosion and Protection of Steel Piling in Seawater


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The report, based on a survey of literature, assembles much of the current knowledge concerning corrosion and protection of steel piling in seawater. Causes of corrosion and effects of environmental conditions are presented. Results of tests on protective coatings for steel are included. Corrosion rates of bare steel piles and the factors involved in the use of cathodic protection and concrete jackets are explained. References surveyed show that flame-sprayed zinc sealed with vinyl is possibly the best coating system tested. More data is needed from which to determine the most economical method of protecting steel piling in seawater. (Author).




Coatings and Cathodic Protection of Piling in Seawater: Results of 10-Year Exposure at Lacosta Island, Florida


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The objective of this study was to assess the rate of corrosion of bare steel with and without cathodic protection, and the effectiveness of various commercially available coating systems in preventing corrosion of steel piles in seawater. Included were 25 coatings and four sacrificial anode cathodic protection systems. Twenty-nine (two piles per set) American Society for Testing and Materials (ASTM) A36 or ASTM 690 steel H-piles were exposed for 10 years. Most of the piles were coated or had cathodic protection. In 1981, the piles were pulled out and inspected visually. Performance ratings were then established for the following coatings: organic, metal-filled, organic over metal-filled, metallic, organic over metallic, and organic with cathodic protection. Based on this study, the following conclusions were drawn: (1) The corrosion rates-determined by flange thickness measurements in the immersion zone-were 7 and 6 mils (0.18 and 0.15 mm) per year respectively for bare carbon (A36) and mariner (690) steel. Sacrificial zinc or aluminum anodes effectively reduced the corrosion in the immersed zone to less than 0.1 mil (0.003 mm) per year. (Adding sacrificial anodes to a coated steel piling also protects steel in the immersed zone if the coating is damaged). (2) A polyester glass flake coating (System 29) was the top performer. Epoxies over zinc-rich primers (Systems 20, 10, and 18) and vinyl-sealed, flame-sprayed aluminum and zinc (Systems 14 and 16) coatings performed very well after 10-years' exposure. (Author).










The Corrosion and Preservation of Iron and Steel (Classic Reprint)


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Excerpt from The Corrosion and Preservation of Iron and Steel IT has been found a difficult matter to bring a work of this kind up to date. New material which touches directly, or in directly, ou the corrosion and preservation of iron and steel, is appearing almost daily in the technical press of the world. The authors have made the effort to include or mention the results of all recent investigations and original researches touching on the subject which have appeared up to the time of going to press, even if to some extent the systematic arrangement of the work has had to suffer by frequent insertions. Although a consider able space is given to the description and results of the researches of one of the authors working in a Government laboratory, no material is included from this source that has not already been printed in official bulletins for free distribution to all persons desiring it. While the book is written mainly to elucidate the electrolytic theory of corrosion (which some one has humorously referred to as The New Thought in the protection problem), it is nevertheless hoped that it will be found useful and suggestive even to those to whom the theory does not especially appeal. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.