Portuguese Irrigation Canals: Lining Solutions, Anomalies, and Rehabilitation
Publication: Journal of Performance of Constructed Facilities
Volume 26, Issue 4
Abstract
Irrigation canals are primary hydraulic infrastructures from an agricultural point of view, and their performance is highly dependent on the efficiency and durability of their coatings. This paper presents the main conclusions of a survey undertaken in Portugal, which concluded that in most situations, the following technologies are used: concrete cast on site, precast concrete slabs, and prefabricated membranes (polymer bitumen or synthetic). These linings may manifest various pathologies with significant consequences on the amount of water lost as a result of lack of watertightness. These defects are classified by lining solution, and their main causes identified. Finally, an exhaustive set of recommendations and rehabilitation techniques are described to minimize water leakage from the canals.
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References
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Information & Authors
Information
Published In
Journal of Performance of Constructed Facilities
Volume 26 • Issue 4 • August 2012
Pages: 507 - 515
Copyright
© 2012. American Society of Civil Engineers.
History
Received: Dec 3, 2010
Accepted: Mar 10, 2011
Published online: Mar 12, 2011
Published in print: Aug 1, 2012
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