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Moisture levels and drying potential of the concrete in Swedish reactor containments

Oxfall, Mikael LU ; Hassanzadeh, Manouchehr LU and Johansson, Peter LU (2013) International Workshop NUCPERF 2012: Long-Term Performance of Cementitious Barriers and Reinforced Concrete in Nuclear Power Plant and Radioactive Waste Storage and Disposal (RILEM Event TC 226-CNM and EFC Event 351) 56. p.1-03002
Abstract
The climatic conditions inside nuclear reactor containments are continuously monitored by the plant owners in order to e.g. maintain a suitable climate for the mechanical and electrical equipment. Due to the high temperatures, during operation, the concrete within the containment may act as a moisture source contributing to the humidity. To evaluate if, and to what extent, the concrete inside the containment influences the climatic conditions, the moisture distribution has to be determined. In order to do this, a measurement setup has been developed and tested. The results showed that the measurement setup was suitable for long term measurements of internal relative humidity in concrete. However, measurements close to the concrete surfaces... (More)
The climatic conditions inside nuclear reactor containments are continuously monitored by the plant owners in order to e.g. maintain a suitable climate for the mechanical and electrical equipment. Due to the high temperatures, during operation, the concrete within the containment may act as a moisture source contributing to the humidity. To evaluate if, and to what extent, the concrete inside the containment influences the climatic conditions, the moisture distribution has to be determined. In order to do this, a measurement setup has been developed and tested. The results showed that the measurement setup was suitable for long term measurements of internal relative humidity in concrete. However, measurements close to the concrete surfaces showed tendencies of leakage, increasing the uncertainties of those measurements. The measurement setup was installed at three reactor containments in Sweden during the summer of 2012. Results from the monitoring campaign on one of the three reactor containments are presented in this paper. The results showed that the concrete was still drying after 30-35 years of exposure inside the containment. (Less)
Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
EPJ Web of Conferences
volume
56
pages
1 - 03002
publisher
EDP Sciences
conference name
International Workshop NUCPERF 2012: Long-Term Performance of Cementitious Barriers and Reinforced Concrete in Nuclear Power Plant and Radioactive Waste Storage and Disposal (RILEM Event TC 226-CNM and EFC Event 351)
conference location
Caradache, France
conference dates
2012-11-12 - 2012-11-15
external identifiers
  • scopus:84882407123
  • wos:000342340900017
ISSN
2101-6275
2100-014X
DOI
10.1051/epjconf/20135603002
language
English
LU publication?
yes
additional info
International Workshop NUCPERF 2012: Long-Term Performance of Cementitious Barriers and Reinforced Concrete in Nuclear Power Plant and Radioactive Waste Storage and Disposal (RILEM Event TC 226-CNM and EFC Event 351)
id
94aee020-6782-4549-90e0-590846eeec34 (old id 3954482)
date added to LUP
2016-04-01 09:53:10
date last changed
2024-04-20 22:17:16
@inproceedings{94aee020-6782-4549-90e0-590846eeec34,
  abstract     = {{The climatic conditions inside nuclear reactor containments are continuously monitored by the plant owners in order to e.g. maintain a suitable climate for the mechanical and electrical equipment. Due to the high temperatures, during operation, the concrete within the containment may act as a moisture source contributing to the humidity. To evaluate if, and to what extent, the concrete inside the containment influences the climatic conditions, the moisture distribution has to be determined. In order to do this, a measurement setup has been developed and tested. The results showed that the measurement setup was suitable for long term measurements of internal relative humidity in concrete. However, measurements close to the concrete surfaces showed tendencies of leakage, increasing the uncertainties of those measurements. The measurement setup was installed at three reactor containments in Sweden during the summer of 2012. Results from the monitoring campaign on one of the three reactor containments are presented in this paper. The results showed that the concrete was still drying after 30-35 years of exposure inside the containment.}},
  author       = {{Oxfall, Mikael and Hassanzadeh, Manouchehr and Johansson, Peter}},
  booktitle    = {{EPJ Web of Conferences}},
  issn         = {{2101-6275}},
  language     = {{eng}},
  pages        = {{1--03002}},
  publisher    = {{EDP Sciences}},
  title        = {{Moisture levels and drying potential of the concrete in Swedish reactor containments}},
  url          = {{http://dx.doi.org/10.1051/epjconf/20135603002}},
  doi          = {{10.1051/epjconf/20135603002}},
  volume       = {{56}},
  year         = {{2013}},
}