Pipelines 2020
Does My Pressure Pipeline Need Cathodic Protection?
Publication: Pipelines 2020
ABSTRACT
When do water pipelines need cathodic protection (CP)? Under what circumstances should CP be considered for a pipeline? This decision must be based on the type of pipe product to be used in the proposed system, such as concrete pressure, ductile iron, or steel pipe, their various inherent corrosion-resistant properties, the corrosivity of the surrounding soil, and other important factors. This paper will examine and discuss these various factors and make recommendations as to when and when not to specify CP on a new pipeline. In addition, the advantages and disadvantages of galvanic CP and impressed current CP systems will be examined. The expertise and experience required to design a CP system will be summarized.
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REFERENCES
ACPPA. (2011). External Protection of Concrete Cylinder Pipe – Guidelines of Supplemental Protection of Pipelines in Adverse Environments for Owners and Specifiers. American Concrete Pressure Pipe Assoc (ACPPA), Hayden, ID.
ANSI/AWWA. (2014). AWWA C301 Prestressed Concrete Pressure Pipe, Steel-Cylinder Type, Standard C301. AWWA, Denver, CO.
ANSI/AWWA. (2017). AWWA C151 Ductile-Iron Pipe, Centrifugally Cast, Standard C151/A21.51-17. AWWA, Denver, CO.
ANSI/AWWA. (2017). AWWA C303 Concrete Pressure Pipe, Bar-Wrapped, Steel-Cylinder Type, Standard C303. AWWA, Denver, CO.
ANSI/AWWA. (2018). AWWA C105 Polyethylene Encasement for Ductile-Iron Pipe Systems, Standard C105/A21.5-10, AWWA, Denver, CO.
ANSI/AWWA. (2018). AWWA C205 Cement-Mortar Protective Lining and Coating for Steel Water Pipe 4-in. (100 mm) and Larger – Shop Applied, Standard C205. AWWA, Denver, CO.
NACE International. (2013). Control of External Corrosion on Underground or Submerged Metallic Piping Systems, Standard Practice SP0169. NACE International, Houston, TX.
NACE International. (2013). Corrosion and Corrosion Control for Buried Cast- and Ductile-Iron Pipe, Publication 10A292. NACE International, Houston, TX.
NACE International. (2019). Cathodic Protection to Control External Corrosion of Concrete Pressure Pipelines and Mortar-Coated Steel Pipelines for Water and Waste Water Service, Standard Practice SP0100. NACE International, Houston, TX.
Information & Authors
Information
Published In
Pipelines 2020
Pages: 65 - 71
Editors: J. Felipe Pulido, OBG, Part of Ramboll and Mark Poppe, Brown and Caldwell
ISBN (Online): 978-0-7844-8319-0
Copyright
© 2020 American Society of Civil Engineers.
History
Published online: Aug 6, 2020
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