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

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

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.

Details

Authors
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Materials Engineering
Original languageEnglish
Title of host publicationEPJ Web of Conferences
PublisherEDP Sciences
Pages03002-p.1-03002-p.8
Volume56
Publication statusPublished - 2013
Publication categoryResearch
Peer-reviewedYes
EventInternational 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) - Caradache, France
Duration: 2012 Nov 122012 Nov 15

Publication series

Name
Volume56
ISSN (Print)2100-014X
ISSN (Electronic)2101-6275

Conference

ConferenceInternational 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)
CountryFrance
CityCaradache
Period2012/11/122012/11/15

Bibliographic note

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)

Related research output

Mikael Oxfall, 2013, Division of Building Materials, LTH, Lund University. 103 p.

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