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Polyethylene Encasement as an Asset Preservation Method for Ductile Iron Pipe

Horton, Mike

Polyethylene encasement has been the primary asset preservation method utilized for gray and ductile iron pipe since 1958. In the 50 years of use, over 300 million feet of iron pipe have been installed with polyethylene encasement, and over 300 miles of encased pipe installed with supplemental cathodic protection. This paper reviews the history, successes, problems, and limitations of this method of protection. Failure investigations of polyethylene encased pipe by the author over the past 35 years are discussed. Recommendations are given to ensure the design service life of encased ductile iron pipelines is achieved.

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Polyethylene Encasement as an Asset Preservation Method for Ductile Iron Pipe

Horton, Mike

Polyethylene encasement has been the primary asset preservation method utilized for gray and ductile iron pipe since 1958. In the 50 years of use, over 300 million feet of iron pipe have been installed with polyethylene encasement, and over 300 miles of encased pipe installed with supplemental cathodic protection. This paper reviews the history, successes, problems, and limitations of this method of protection. Failure investigations of polyethylene encased pipe by the author over the past 35 years are discussed. Recommendations are given to ensure the design service life of encased ductile iron pipelines is achieved.

Polyethylene Encasement as an Asset Preservation Method for Ductile Iron Pipe

Horton, Mike

Polyethylene encasement has been the primary asset preservation method utilized for gray and ductile iron pipe since 1958. In the 50 years of use, over 300 million feet of iron pipe have been installed with polyethylene encasement, and over 300 miles of encased pipe installed with supplemental cathodic protection. This paper reviews the history, successes, problems, and limitations of this method of protection. Failure investigations of polyethylene encased pipe by the author over the past 35 years are discussed. Recommendations are given to ensure the design service life of encased ductile iron pipelines is achieved.

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Title:

Polyethylene Encasement as an Asset Preservation Method for Ductile Iron Pipe

Contributors:

Horton, Mike (author)

Conference:

International Pipelines Conference 2008 ; 2008 ; Atlanta, Georgia, United States

Published in:

Pipelines 2008 ; 1-10

Publication date:

2008-07-17

ISBN:

DOI:

https://doi.org/10.1061/40994(321)101

Type of media:

Conference paper

Type of material:

Electronic Resource

Language:

English

Keywords:

Infrastructure , Pipes , Polyethylene , Encasements , Pipelines , Costs , Assets , Iron (material)

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