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Corrosion Rates on Aging Pipelines

SKU: GRI-02/0190
Corrosion Rates on Aging Pipelines

Buried pipelines are protected from corrosion by a combination of a protective polymer coating and cathodic protection. The objective of this project was to determine pipeline steel corrosion rates beneath a sand layer and polymer coating. An analysis was performed to correlate the corrosion rate of steel with the permeability of oxygen through the coating.
Document Type
Report
Report Type
Final Report
Report Period
06/97 - 04/00
Corporate Source
Case Western Reserve University, Cleveland, OH
Sponsor
Gas Research Institute, Des Plaines, IL
Pagination
127p
Product Media
PDF Download
$295.00 / Each
 
Availability: In Stock
Summary:
Buried pipelines are protected from corrosion by a combination of a protective polymer coating and cathodic protection. The objective of this project was to determine pipeline steel corrosion rates beneath a sand layer and polymer coating. An analysis was performed to correlate the corrosion rate of steel with the permeability of oxygen through the coating. The effectiveness of cathodic protection was evaluated for various sand or coating conditions. The findings are based upon the results of experiments to measure (a) the corrosion rate and electrochemical behavior of steel, (b) the oxygen permeability in soils and through coatings, (c) the electrical properties of coatings, and (d) the effects of carbon dioxide on corrosion. The understanding and data from these controlled laboratory tests will be useful in the development of advanced models and procedures to determine the safety and predict the performance of buried pipelines.
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