Evaluation on swelling properties of bentonite based materials in coexisting condition with concrete materials

本研究旨在发展放射性废物的处置技术，尤其是对于最迫切的低水平放射性废物的处置。本文通过实验研究了膨润土作为屏障材料的膨胀压力和膨胀变形特性。实验条件为散装设备中混凝土材料共存的条件。在此基础上，建立了膨润土缓冲剂规格数据库。并提出了干密度、粒度、材料的选择等技术指标的实用评价方法。

This study is for developing technology to dispose radioactive waste, especially for low-level radioactive wastes disposal that is most urgent. In this study, swelling pressure and swelling deformation properties of bentonite as barrier materials were investigated by experiment. Experiment condition was coexisting condition with concrete materials in disporsal facility. As a result, database for specification of bentonite buffer was produced. And theoretical method for practical evaluation to specification such as selection dry density, size and materials was proposed.