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Deterioration of Concrete in Hydraulic Structures due to Frost Action

Rosenqvist, Martin LU ; Fridh, Katja LU and Hassanzadeh, Manouchehr LU (2014) XXII Nordic Concrete Research Symposia In Nordic Concrete Research - Proceedings of XXII Nordic Concrete Symposium 2014/2(50). p.483-486
Abstract
Climatic conditions during the winter in countries situated in the north can be considered severe. This is especially true for hydraulic structures, such as hydro power structures, dams, harbours, canals and some bridge foundations. Freezing of concrete in contact with unfrozen fresh water may have a considerable impact on the deterioration process of concrete. This paper presents results obtained in experimental investigations based on observations of superficial and internal damage to concrete in hydraulic structures in Sweden. It was shown that superficial damage at the waterline is caused by interactions between leaching, frost action and abrasion. Further, the results indicate that internal damage to some thin concrete dams has been... (More)
Climatic conditions during the winter in countries situated in the north can be considered severe. This is especially true for hydraulic structures, such as hydro power structures, dams, harbours, canals and some bridge foundations. Freezing of concrete in contact with unfrozen fresh water may have a considerable impact on the deterioration process of concrete. This paper presents results obtained in experimental investigations based on observations of superficial and internal damage to concrete in hydraulic structures in Sweden. It was shown that superficial damage at the waterline is caused by interactions between leaching, frost action and abrasion. Further, the results indicate that internal damage to some thin concrete dams has been due to formation of macroscopic ice lenses causing spalling of concrete. Knowledge about degradation mechanisms and how they interact is crucial in order to be able to perform durable repairs. (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Frost Action, Scaling, Ice Segregation, Moisture Conditions, Hydraulic Structures
in
Nordic Concrete Research - Proceedings of XXII Nordic Concrete Symposium
volume
2014/2
issue
50
pages
4 pages
publisher
Norsk Betongforening
conference name
XXII Nordic Concrete Research Symposia
ISSN
0800-6377
ISBN
978-82-8208-043-9
language
English
LU publication?
yes
id
73e750f9-d9ea-4eaa-a3b0-c748d5c2d759 (old id 4588632)
date added to LUP
2014-08-18 14:26:07
date last changed
2016-04-15 21:54:55
@inproceedings{73e750f9-d9ea-4eaa-a3b0-c748d5c2d759,
  abstract     = {Climatic conditions during the winter in countries situated in the north can be considered severe. This is especially true for hydraulic structures, such as hydro power structures, dams, harbours, canals and some bridge foundations. Freezing of concrete in contact with unfrozen fresh water may have a considerable impact on the deterioration process of concrete. This paper presents results obtained in experimental investigations based on observations of superficial and internal damage to concrete in hydraulic structures in Sweden. It was shown that superficial damage at the waterline is caused by interactions between leaching, frost action and abrasion. Further, the results indicate that internal damage to some thin concrete dams has been due to formation of macroscopic ice lenses causing spalling of concrete. Knowledge about degradation mechanisms and how they interact is crucial in order to be able to perform durable repairs.},
  author       = {Rosenqvist, Martin and Fridh, Katja and Hassanzadeh, Manouchehr},
  booktitle    = {Nordic Concrete Research - Proceedings of XXII Nordic Concrete Symposium},
  isbn         = {978-82-8208-043-9},
  issn         = {0800-6377},
  keyword      = {Frost Action,Scaling,Ice Segregation,Moisture Conditions,Hydraulic Structures},
  language     = {eng},
  number       = {50},
  pages        = {483--486},
  publisher    = {Norsk Betongforening},
  title        = {Deterioration of Concrete in Hydraulic Structures due to Frost Action},
  volume       = {2014/2},
  year         = {2014},
}