缓冲回填材料内蒙古摘要.PDF

CNIC-01922 ECIT-OOOl 缓冲/回填材料 内蒙古 高庙子膨润土性能研究 刘晓东1 ， 2 罗太安l 朱国平l 陈庆春l (1.东华理工大学，江西抚州，344000; 2. 核资源与环境省部共建教育部重点实验室，江西抚州，344000) 摘要 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O 结果表明，高庙 子纳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口 关键词:膨润土 缓冲/回填材料 高放废物处置 140 Study on the properties of Gaomiaozi Bentonite as the Buffer/Backfilling Materials for HL矶T Disposal (In Chinese) LIU Xiaodong 1 2 LUG Taian 1 ZHU Guoping 1 CHEN Qingchun 1 • (1. East China Institute of Technology , Fuzhou , Jiangxi , 344000 2. Key Laboratory of Nuclear Resources and Environment of Ministry of Education , Fuzhou , Jiangxi , 344000) ABSTRACT Systematic studies including mineral composition and structure , physico- chemical properties and thermal properties have been conducted on Gaomiaozi bentonite , Xinghe County , Inner ~v1ongolia Auton0 i110US Region. The compac- tion characteristics of bentonite and the influence of additive to bentonite have been discussed. The analysis of mineral composition and structure show that the bentonite ores are dominated by montmorillonite. Preliminary studies of the characteristics of ores indicated that Na-type bentonite from the deposit has good absorption , excellent swelling and high cation exchangeability. The