Rehabilitation of Terminal Ballast Water Pipingby Ernest W. Klechka, Alyeska Pipeline Service Co, Anchorage, AK, USA,
Document Type: Proceeding Paper
Part of: Pipeline Infrastructure
In order to maintain the integrity of the ballast water piping system at the Marine Terminal of the trans-Alaska pipeline, a composite lining system was installed in the 42-inch (1,067 mm) diameter piping over a two-year period. As part of the lining process, the piping was inspected to determine the extent of internal damage. After examining several possible alternatives for repair to the ballast water piping, a composite lining consisting of polyester felt impregnated with epoxy resin was chosen for the repair. This repair process was chosen because of the 20-year expected service life, minimum down time for the ballast water system during repair, and the relatively few access points needed for installation of the lining. Approximately 21,500 linear feet (6,550 m) of piping was rehabilitated.
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