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Effect of interface between paint and concrete materials in tritium permeation

トリチウム透過におけるコンクリート材料と塗料界面の影響

枝尾 祐希; 林 巧; 深田 智*

Edao, Yuki; Hayashi, Takumi; Fukada, Satoshi*

トリチウム取扱い建家におけるコンクリート構造材のトリチウム汚染及び除染のためにトリチウムの移行挙動を把握することは重要である。本研究において、エポキシ樹脂及びウレタン樹脂塗料を塗布したコンクリートへのトリチウム透過挙動を測定し、塗料とコンクリートの境界面に影響されることが示唆されたため、塗料とコンクリート試料間の状態を観察し、トリチウム移行速度について調査した結果を報告する。

It is important to understand behavior of tritium transfer in structural material of concrete for estimation of contamination and decontamination in a tritium handling facility. In the present study, tritium permeation through concrete covered with epoxy and urethane paints was measured, and the interface between concrete and their paints was considered to be most effective in the overall tritium permeation process. Results of our investigation for the rate of tritium transfer and properties and conditions between concrete materials and paints will be reported.

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