Study on the Themal Conductivity of Compacted Buffer/Backfill Materials

作     者：WANG Maoli YI Facheng WANG Zhe WAN Zhongyan WANG Chong WANG Jianwei 

作者机构：Fundamental Science on Nuclear Wastes and Environmental Safety LaboratorySWUST Geothermal Geological BrigadeTibet Bureau of Geology and Exploration 

出 版 物：《矿物学报》 (Acta Mineralogica Sinica)

年 卷 期：2013年第33卷第S1期

页      面：100-100页

核心收录：

学科分类：081902[工学-矿物加工工程] 0819[工学-矿业工程] 08[工学] 

主　　题：high level radioactive waste compacted buffer/backfill materials thermal conductivity B-Z B-Z-P 

摘      要：The thermal property is one of the key properties for the design of the high-level radioactive waste (HLW) repository. In this study, the thermal properties transient automatic tester (HPP-F) is uesd to study the thermal conductivity of multiphase composite buffer/backfill material including the type B-Z and B-Z-P (Here B、Z、P represents bentonite、zeolite and pyrite respectively,the same as in the following.) in different dry density and moisture conditions. The results show that for the same moisture content (dry density), thermal conductivity of specimens increases as the dry density (moisture content) increases. As a result, the type B-Z-P which is highly compacted of 1.8 g/cm3 in dry density and 17.65% in moisture content performs well, it meets the requirements of the IAEA and is easy to be compacted ,so it can be recommend as a alternative material of high level radioactive waste disposal repository buffer/backfilling materials.