Concentration profiles of tritium penetrated into concrete

H. Takata, K. Furuichi, M. Nishikawa, S. Fukada, K. Katayama, T. Takeishi, K. Kobayashi, T. Hayashi, H. Namba

研究成果: ジャーナルへの寄稿学術誌査読

11 被引用数 (Scopus)

抄録

Concentration profiles of tritium in cement paste, mortar and concrete were measured after exposure to tritiated water vapor for a given time. Tritium penetrated a distance of about 5 cm from the exposed surface during an exposure of 6 months. The model of tritium behavior in concrete materials reported by the present authors was developed in this study with the consideration of the effects of sand and aggregate on both the diffusion coefficient of tritiated water vapor and the isotope exchange capacity. Predictive calculations based on the tritium transport model were also carried out in some situations of tritium leakage. The results of the calculations show that a large amount of tritium will be trapped in the concrete walls, and the trapped tritium will be gradually released back to the tritium handling room over the time of months to years even after the decontamination of the room is completed.

本文言語英語
ページ(範囲)223-226
ページ数4
ジャーナルFusion Science and Technology
54
1
DOI
出版ステータス出版済み - 7月 2008

!!!All Science Journal Classification (ASJC) codes

  • 土木構造工学
  • 核物理学および高エネルギー物理学
  • 原子力エネルギーおよび原子力工学
  • 材料科学一般
  • 機械工学

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