Tritium transfer in porous concrete materials coated with hydrophobic paints

Satoshi Fukada, Y. Edao, K. Sato, T. Takeishi, Kazunari Katayama, K. Kobayashi, T. Hayashi, T. Yamanishi, Y. Hatano, A. Taguchi, S. Akamaru

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

An experimental study on tritium transfer in porous concrete materials for the tertiary tritium safety containment is performed to investigate; (i) how fast tritium is transferred through porous concrete walls coated with or without a hydrophobic paint, and (ii) how well the hydrophobic paint coating works as a film protecting against tritium migrating through concrete. The experiment is comparatively carried out using two types of cement-paste and mortar disks with or without two kinds of paints. The results obtained here are summarized as follows: (1) Tritium transfer can be correlated in terms of the effective tritium diffusivity of DT=1.2xl0 -11 m 2 /s in porous cement. (2) Adsorbed or condensed liquid HTO itself is transferred only through pores in cement, and no tritium transfer path is present in non-porous sand. (3) Rates of tritium sorption and dissolution in cement and mortar coated with an epoxyresin paint is correlated in terms of the diffusivity through the paint film of D T =1.0x101 -16 m 2 /s. (4) The epoxy paint works more effectively as an anti-tritium diffusion coating than the acrylic-silicon resin paint. (5) The hydrophobic property of the silicon resin paint is deteriorated with elongating the contact time with H 2 O.

Original languageEnglish
Pages (from-to)1061-1064
Number of pages4
JournalFusion Science and Technology
Volume60
Issue number3
DOIs
Publication statusPublished - Jan 1 2011

Fingerprint

Coated materials
Tritium
paints
tritium
Paint
Concretes
cements
Cements
Silicon
Mortar
resins
diffusivity
Resins
Diffusion coatings
coatings
containment
silicon
Ointments
sorption
sands

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering

Cite this

Fukada, S., Edao, Y., Sato, K., Takeishi, T., Katayama, K., Kobayashi, K., ... Akamaru, S. (2011). Tritium transfer in porous concrete materials coated with hydrophobic paints. Fusion Science and Technology, 60(3), 1061-1064. https://doi.org/10.13182/FST11-A12599

Tritium transfer in porous concrete materials coated with hydrophobic paints. / Fukada, Satoshi; Edao, Y.; Sato, K.; Takeishi, T.; Katayama, Kazunari; Kobayashi, K.; Hayashi, T.; Yamanishi, T.; Hatano, Y.; Taguchi, A.; Akamaru, S.

In: Fusion Science and Technology, Vol. 60, No. 3, 01.01.2011, p. 1061-1064.

Research output: Contribution to journalArticle

Fukada, S, Edao, Y, Sato, K, Takeishi, T, Katayama, K, Kobayashi, K, Hayashi, T, Yamanishi, T, Hatano, Y, Taguchi, A & Akamaru, S 2011, 'Tritium transfer in porous concrete materials coated with hydrophobic paints', Fusion Science and Technology, vol. 60, no. 3, pp. 1061-1064. https://doi.org/10.13182/FST11-A12599
Fukada, Satoshi ; Edao, Y. ; Sato, K. ; Takeishi, T. ; Katayama, Kazunari ; Kobayashi, K. ; Hayashi, T. ; Yamanishi, T. ; Hatano, Y. ; Taguchi, A. ; Akamaru, S. / Tritium transfer in porous concrete materials coated with hydrophobic paints. In: Fusion Science and Technology. 2011 ; Vol. 60, No. 3. pp. 1061-1064.
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