Effective Diffusion Coefficients of 3H2O in Several Porous Materials
Effective Diffusion Coefficients of 3H2O in Several Porous Materials
复制标题
3H2O在几种多孔材料中的有效扩散系数
DOI：
10.5453/jhps.11.309
复制
发表时间：
1976
影响因子：
--
通讯作者：
T. Kumaki
中科院分区：
文献类型：
--
作者：
Y. Terashima;T. Kumaki
放射性核素在某些多孔结构材料和地层多孔组分中的扩散系数是放射性废物贮存和处置安全评价的重要依据。我们建立了用渗透式扩散池测定有效扩散系数的分析和实验方法，并报道了实验结果。本文介绍了放射性核素在多孔结构材料和地层多孔组分中的扩散系数的测定方法。测定了3H2O在砂浆、混凝土、砖、粘土层和砂层中的有效扩散系数，并根据多孔性因子讨论了这些孔隙结构的特征。
Diffusion coefficients of radionuclides in some porous structural materials and porous components of earth stratum are important as the basis for the safety evaluation of the storage and disposal of radioactive wastes.In our previous works, the method of analysis and experiment using a permeative type diffusion cell for measurement of effective diffusion coefficient was established, and experimental results were reported.In this paper, effective diffusion coefficients of 3H2O in mortar, concrete, brick, clay layer, and sand layer were measured, and characteristics of these pore structure were discussed on the basis of tourtusity factor.