A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Underground corrosion is shown to be of economic importance by the fact that associations of pipe owners and pipe-owning corporations are spending considerable sums for the study of corrosion problems. The underground pipes in the United States have been estimated to have a length of 450 000 miles and a value of nearly $6 000 000 000. The annual loss due to underground corrosion of pipe lines in the oil industry alone has been estimated at $25 000 000.
Soil corrosion is characterized by the uneven distribution of the corrosion and the fact that most ferrous pipe materials corrode at nearly the same rates. The major cause of the corrosion seems to be non-uniformity in the distribution, of oxygen and moisture along the surface of the pipe line. Among the methods suggested for reducing corrosion losses are the use of copper and copper alloy pipe which corrode less rapidly than ferrous materials; increasing the thickness of the pipe walls; and the use of protective coatings.
Soil corrosivity surveys are suggested as a means for determining the need for protective coatings. Some of the weaknesses of coatings are noted and cathodic protection is suggested as a means of improving the effectiveness of coatings. In an Appendix are listed some of the more important recent articles on underground corrosion and related subjects.
Underground corrosion is shown to be of economic importance by the fact that associations of pipe owners and pipe-owning corporations are spending considerable sums for the study of corrosion problems. The underground pipes in the United States have been estimated to have a length of 450 000 miles and a value of nearly $6 000 000 000. The annual loss due to underground corrosion of pipe lines in the oil industry alone has been estimated at $25 000 000.
Soil corrosion is characterized by the uneven distribution of the corrosion and the fact that most ferrous pipe materials corrode at nearly the same rates. The major cause of the corrosion seems to be non-uniformity in the distribution, of oxygen and moisture along the surface of the pipe line. Among the methods suggested for reducing corrosion losses are the use of copper and copper alloy pipe which corrode less rapidly than ferrous materials; increasing the thickness of the pipe walls; and the use of protective coatings.
Soil corrosivity surveys are suggested as a means for determining the need for protective coatings. Some of the weaknesses of coatings are noted and cathodic protection is suggested as a means of improving the effectiveness of coatings. In an Appendix are listed some of the more important recent articles on underground corrosion and related subjects.
Underground Corrosion
Logan, K. H. (author)
Transactions of the American Society of Civil Engineers ; 101 ; 811-825
2021-01-01
151936-01-01 pages
Article (Journal)
Electronic Resource
Unknown
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