Effect of interface between paint and concrete materials in tritium permeation

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

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.