Modelling the effectiveness of cathodic protection in water mains

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Conference15th International Conference on Pipeline Protection: 29 October 2003, Aachen, Germany
Pages18; # of pages: 8
SubjectWater mains
AbstractThe effectiveness of cathodic protection (CP) in water mains can ultimately be expressed in terms of economic benefits obtained as a result of reduction in breakage frequency and deferral of pipe replacement. Modelling this effectiveness can be challenging because breakage frequency in water mains can be affected by several factors, both static (pipe size, material, soil type, etc.) and dynamic (climate, CP practices, etc.). In this paper we present an approach that was developed at the Institute for Research in Construction of the National Research Council of Canada, in collaboration with 12 Canadian water utilities from Quebéc, Ontario, Saskatchewan and Alberta. Breakage patterns, before and after implementation of CP, are statistically analysed. Contributing factors such as pipe and soil characteristics, climatic changes and the type of CP (retrofit or hotspot) are explicitly considered. Once the parameters of these breakage patterns are extracted, a thorough economic analysis can be performed.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number46763
NPARC number20378742
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Record identifier4c41c48f-3fc3-4d4d-b45f-b4ed576f01f3
Record created2012-07-24
Record modified2016-05-09
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