Common causes of material degradation in buried piping

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Buried pipe may fail for innumerable reasons. Causes can be mechanical damage/breakage, chemically initiated corrosion, or a combination. Failures may originate either internally or externally on the pipe. They may be related to flaws in the design, to excessive or unanticipated internal pressure or ground level loading, and/or to poor or uncertain installation practice. Or the pipe may simply ``wear out`` in service. Steel is strong and very forgiving in underground applications, especially with regard to backfill. However, soil support developed through densification or compaction is critical for brittle concrete and vitrified clay tile pipe, and is very important for ... continued below

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29 p.

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Jenkins, C.F. January 20, 1997.

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Description

Buried pipe may fail for innumerable reasons. Causes can be mechanical damage/breakage, chemically initiated corrosion, or a combination. Failures may originate either internally or externally on the pipe. They may be related to flaws in the design, to excessive or unanticipated internal pressure or ground level loading, and/or to poor or uncertain installation practice. Or the pipe may simply ``wear out`` in service. Steel is strong and very forgiving in underground applications, especially with regard to backfill. However, soil support developed through densification or compaction is critical for brittle concrete and vitrified clay tile pipe, and is very important for cast iron and plastic pipe. Chemistry of the soil determines whether or not it will enhance corrosion or other types of degradation. Various causes and mechanisms for deterioration of buried pipe are indicated. Some peculiarities of the different materials of construction are characterized. Repair methods and means to circumvent special problems are described.

Physical Description

29 p.

Notes

OSTI as DE97060138

Source

  • American Society of Mechanical Engineers (ASME) pressure vessel and piping conference, Orlando, FL (United States), 27 Jul - 1 Aug 1997

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  • Other: DE97060138
  • Report No.: WSRC-MS--97-0089
  • Report No.: CONF-970726--14
  • Grant Number: AC09-96SR18500
  • Office of Scientific & Technical Information Report Number: 491577
  • Archival Resource Key: ark:/67531/metadc675597

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • January 20, 1997

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  • July 25, 2015, 2:21 a.m.

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  • Feb. 9, 2016, 7:59 p.m.

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Jenkins, C.F. Common causes of material degradation in buried piping, article, January 20, 1997; Aiken, South Carolina. (digital.library.unt.edu/ark:/67531/metadc675597/: accessed July 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.