Coating defects
External coating for buried or immerged pipelines
Quizzed article REF: COR665 V1
Coating defects
External coating for buried or immerged pipelines

Author : Thierry Kerzerho

Publication date: April 10, 2021, Review date: September 2, 2020 | Lire en français

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6. Coating defects

6.1 Open coating defects

Open defects mean deterioration in the coating leading to exposure of the steel of the pipeline to its environment. These are for the most part due to mechanical damage: either when the structure is laid, or when the structure is in operation, particularly when work is being carried out in the vicinity by a third party. The most frequent damage is as follows :

  • poor choice of backfill material: particle...

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