论文部分内容阅读
研究按缓冲回填材料的性能要求,对内蒙古高庙子膨润土的物质组成与结构、物理化学性质、水理性质等进行了系统研究;对添加剂改善膨润土的压实性能进行了探索性实验研究。结果表明,高庙子钠基膨润土以蒙脱石为主要矿物成分,具有良好的吸附性、膨胀性、阳离子交换性和热稳定性;石英砂添加剂可以有效地改善膨润土的压实性能;进一步论证了内蒙古高庙子膨润土矿床可以作为我国高放废物地质处置库缓冲/回填材料的供给基地。
Based on the performance requirements of buffer backfill material, the composition, structure, physical and chemical properties and water quality of bentonite in Gaomiaozi, Inner Mongolia were systematically studied. The compaction and experimental study of additives to improve the compaction of bentonite was carried out. The results show that the Gaomiaozi Na-bentonite has montmorillonite as its main mineral component and has good adsorption, expansibility, cation exchange and thermal stability. The quartz sand additive can effectively improve the compaction performance of bentonite. The Gaomiaozi Bentonite deposit in Inner Mongolia can serve as the supply base for buffer / backfill materials for the geological repository of high level radioactive waste in China.