Closure of the concrete supercontainer in hot cell under thermal load

Research output: Contribution to journalArticle

Authors

  • Bart Craeye
  • Geert De Schutter
  • William Wacquier
  • Hughes Van Humbeeck
  • Alain Van Cotthem
  • Lou Areias

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Abstract

In this study, crack generation and the behaviour of the concrete in the supercontainer during the construction stages in hot cell are investigated. Taking precautionary measures, such as reducing the coefficient of thermal expansion of the overpack, prolonging the preceding cooling period of the HLW or reducing the modulus of elasticity of the filler material, the generation of superficial tangential macro cracks can be prevented. Finally, the effect of elevated temperatures due to heat emitted by the HLW on the strength of the hardened SCC is investigated by means of compressive strength tests and fluorescence microscopy analysis.

Details

Original languageEnglish
Pages (from-to)1352-1359
JournalNuclear Engineering and Design
Volume241
Issue number5
DOIs
Publication statusPublished - Dec 2011

Keywords

  • Supercontainer, high level waste, early-age concrete, micro-crack generation

ID: 168076