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Failure conditions of asbestos cement water mains in Regina

From National Research Council Canada

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Affiliation
  1. National Research Council of Canada. NRC Institute for Research in Construction
FormatText, Article
ConferenceCanadian Society of Civil Engineering (CSCE) 33rd Annual Conference, June 2, 2005, Toronto, Ontario
SubjectWater mains; Concrete; asbestos cement pipes; failure conditions; water mains
Abstract
Approximately two thirds of the water mains in the City of Regina are asbestos cement (AC) pipes. These pipes are experiencing more and more failures in recent years and account for almost all of the water main breaks in the city. The AC water main failures, along with the failure of other types of water mains in general, are a result of various factors, some of which are site specific. To assess the condition and identify the factors that significantly influence the breakage of AC water mains, the historical failure data for AC water mains in the City of Regina have been collected, along with their corresponding working environments, including soil type, water quality, weather, etc. The AC water main break data were analyzed for correlation between pipe breakage and all known physical, environmental and operational factors. The predominant factors that influence the AC pipe breaks were identified. It was observed that pipe age, diameter, climate, soil and construction and repair methods all influence the condition of the AC water mains in Regina, with climate and soil conditions being the two critical factors. Water quality is not a major determinant of the AC water main condition for the city. The observations will serve as a basis for further research on the failure mechanisms of the AC pipes, which is essential for the performance prediction of these water mains and, therefore, the management of the city's AC water main assets.
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  • Canadian Society of Civil Engineering (CSCE) 33rd Annual Conference [Proceedings] (1 June 2005): 1–10.
LanguageEnglish
Peer reviewedYes
NRC numberNRCC 48148
NRC-IRC-17357
NPARC number20377760
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Record identifierc34d0b6b-fd9c-4592-b14a-b5661387492e
Record created2012-07-24
Record modified2020-04-07
Date modified: