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 language | English |
|---|---|
| Pages (from-to) | 1061-1064 |
| Number of pages | 4 |
| Journal | Fusion Science and Technology |
| Volume | 60 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Jan 1 2011 |
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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
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 journal › Article
}
TY - JOUR
T1 - Tritium transfer in porous concrete materials coated with hydrophobic paints
AU - Fukada, Satoshi
AU - Edao, Y.
AU - Sato, K.
AU - Takeishi, T.
AU - Katayama, Kazunari
AU - Kobayashi, K.
AU - Hayashi, T.
AU - Yamanishi, T.
AU - Hatano, Y.
AU - Taguchi, A.
AU - Akamaru, S.
PY - 2011/1/1
Y1 - 2011/1/1
N2 - 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.
AB - 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.
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U2 - 10.13182/FST11-A12599
DO - 10.13182/FST11-A12599
M3 - Article
AN - SCOPUS:82055163672
VL - 60
SP - 1061
EP - 1064
JO - Fusion Science and Technology
JF - Fusion Science and Technology
SN - 1536-1055
IS - 3
ER -