Much of the water pipeline infrastructure is constructed of iron pipe. Consistently
achieving a 100 year service life requires management of these assets
throughout their life, beginning with original design and construction. Two highly
effective tools for managing water pipeline infrastructure are discussed in this paper.
A study of the mechanisms of external pipe deterioration and life-extension
approaches for ductile iron pipe culminated in a risk based corrosion protection
design strategy for new buried ductile iron pipelines. This Design Decision Model
recognizes various corrosion protection technologies for prevention of external
corrosion on ductile iron pipe in soil environments. Example approaches are
provided with guidance for cost-effective, long-term solutions to ensure a 100
year life.
For existing pipelines, it is imperative that the remaining pipe life be known as a
driving input parameter for repair, rehabilitation and replacement decisions. In the
energy industry which faces the same issues related to decaying infrastructure,
a process of External Corrosion Direct Assessment (ECDA) is used for this
purpose. This same sound engineering approach, with some modifications, is
directly applicable to water mains. Includes 17 references, tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 1.2 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 56 |
| Published : | 11/01/2008 |
