Research Article
Jun 1976
Fibrous Concrete Repair of Cavitation Damage
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VIEW THE REPLYPublication: Journal of the Construction Division
Volume 102, Issue 2
Abstract
Libby Dam is a high head concrete structure on the Columbia River System. After moderate usage, one of the sluices (low level outlets) developed severe cavitation damage. The concrete was investigated thoroughly and found to exceed design criteria with strength ranging between 6,530 psi (45,057 kN/m2) and 9,650 psi (66,585 kN/m2). Since the cause of cavitation was not known, the damaging forces could not be eliminated. The repair had to be strong, practical, and more cavitation resistant than the original material. Several procedures were considered before a fibrous concrete pour back was decided upon. A mix design procedure for the fibrous concrete was developed that would insure the workability necessary to place the pour back around severe congestion of reinforcing and anchor bars. The placement was successful and service to date shows no damage of the repaired area.
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Information & Authors
Information
Published In
Journal of the Construction Division
Volume 102 • Issue 2 • June 1976
Pages: 385 - 399
Copyright
© 1976 American Society of Civil Engineers.
History
Published in print: Jun 1976
Published online: Feb 11, 2021
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Authors
Affiliations
Ernest K. Schrader, AM.ASCE
Materials Specialist, U.S. Army Corps of Engrs., Walla Walla, Wash.; formerly, Asst. to Libby Dam Resident Engr., Libby, Mont.
Anthony V. Munch, M.ASCE
Chf. of Resident Office, Construction Branch, U.S. Army Corps of Engrs., Walla Walla, Wash.; formerly, Chf. of Libby Dam Resident Office, Foundation and Materials Branch, Libby, Mont.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.