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Macroscopic ice lens growth : observations on Swedish concrete dams

Rosenqvist, Martin LU ; Fridh, Katja LU and Hassanzadeh, Manouchehr LU (2012) 3rd International Conference on Concrete Repair, Rehabilitation and Retrofitting, ICCRRR-3 In Concrete Repair, Rehabilitation and Retrofitting III p.658-664
Abstract
The arch dam at Selsforsen and the buttress dam at Storfinnforsen are two concrete dams of which both have suffered from severe surface spalling on the upstream face, far below the full water supply level. A hypothesis is that macroscopic ice lens growth, similar to frost heave in soil, could have occurred within the dam walls. After initial deterioration of the concrete dams by frost damage or cracking, the formation of macroscopic ice lenses could have been made possible. In an attempt to test the hypothesis, specimens of low strength concrete were exposed in the laboratory to climatic boundary conditions similar to those of the dams. After one week of freezing, the upper part of the concrete specimens was separated from the lower part... (More)
The arch dam at Selsforsen and the buttress dam at Storfinnforsen are two concrete dams of which both have suffered from severe surface spalling on the upstream face, far below the full water supply level. A hypothesis is that macroscopic ice lens growth, similar to frost heave in soil, could have occurred within the dam walls. After initial deterioration of the concrete dams by frost damage or cracking, the formation of macroscopic ice lenses could have been made possible. In an attempt to test the hypothesis, specimens of low strength concrete were exposed in the laboratory to climatic boundary conditions similar to those of the dams. After one week of freezing, the upper part of the concrete specimens was separated from the lower part due to cracking. The gradual propagation of the crack, which appeared about 25 mm below the top surface, was caused by macroscopic ice lens growth. (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Concrete Repair, Rehabilitation and Retrofitting III
pages
7 pages
publisher
CRC Press
conference name
3rd International Conference on Concrete Repair, Rehabilitation and Retrofitting, ICCRRR-3
external identifiers
  • scopus:84867356287
ISBN
978-0-415-89952-9 (print)
978-0-203-12425-3 (ebook)
language
English
LU publication?
yes
id
39d62751-4446-499a-afa9-226cec2f385d (old id 3112628)
date added to LUP
2012-09-26 10:30:16
date last changed
2017-06-11 04:55:50
@inproceedings{39d62751-4446-499a-afa9-226cec2f385d,
  abstract     = {The arch dam at Selsforsen and the buttress dam at Storfinnforsen are two concrete dams of which both have suffered from severe surface spalling on the upstream face, far below the full water supply level. A hypothesis is that macroscopic ice lens growth, similar to frost heave in soil, could have occurred within the dam walls. After initial deterioration of the concrete dams by frost damage or cracking, the formation of macroscopic ice lenses could have been made possible. In an attempt to test the hypothesis, specimens of low strength concrete were exposed in the laboratory to climatic boundary conditions similar to those of the dams. After one week of freezing, the upper part of the concrete specimens was separated from the lower part due to cracking. The gradual propagation of the crack, which appeared about 25 mm below the top surface, was caused by macroscopic ice lens growth.},
  author       = {Rosenqvist, Martin and Fridh, Katja and Hassanzadeh, Manouchehr},
  booktitle    = {Concrete Repair, Rehabilitation and Retrofitting III},
  isbn         = {978-0-415-89952-9 (print)},
  language     = {eng},
  pages        = {658--664},
  publisher    = {CRC Press},
  title        = {Macroscopic ice lens growth : observations on Swedish concrete dams},
  year         = {2012},
}