[2L14-19] Contaminated Concrete

5:35 PM - 5:50 PM JST(8:35 AM - 8:50 AM UTC)

[2L19] Study on the Methodology for Rational Treatment/Disposal of Contaminated Concrete Waste Considering Volume Reduction of Waste(3)Diffusion Behavior of Iodine in Cementitious Materials under Different Temperature Conditions

*Haruya Funayama¹, Shinichirou Uematsu¹, Naoko Watanabe¹, Tamotsu Kozaki¹, Yuka Morinaga², Daisuke Minato² (1. Hokkaido Univ., 2. CRIEPI)

Keywords:

Cementitious materials,I-125,Diffusion behavior,Temperature dependence,Activation energy

By conducting non-steady-state diffusion experiments using I-125, the apparent diffusion coefficients of iodine in hardened cement paste samples were determined under different temperature conditions. The diffusion behavior of iodine was discussed from the viewpoint of the activation energy for the diffusion which was obtained from the temperature dependence of the diffusion coefficients