2021 Fall Meeting
Sep 8 - Sep 10, 2021Online
2021 Fall Meeting
Sep 8 - Sep 10, 2021Online
[1A12]Diffusion behavior of iodide and cesium ions in hardened cement paste
*Takaya Kawato1, Keisuke Ishida2, Takeshi Yamamoto1, Daisuke Minato1, Kiyoshi Fujisaki2, Takafumi Hamamoto2, Morihiro Mihara3(1. CRIEPI, 2. NUMO, 3. JAEA)
Keywords:
Diffusion,EPMA,Iodine,Cesium,Cement pastes,Immersion test
A one-sided release immersion test was conducted to observe the diffusion behavior of iodine (I-) and cesium (Cs+) ions in hardened cement paste. The test specimens were hardened cement pastes of different water-cement ratios that had been wet-air cured for more than 5 years. The analysis was carried out by elemental concentration surface analysis at depth using EPMA.