Compressibility of Four Types of Granular Bentonite Materials
Granular bentonite materials are some types of buffer/backfill materials with good performance,which are constituted by bentonite pellets or by pellets and bentonite powder.The dry density is the key parameter which controls the engineering properties of buffer/backfill materials.The grain size distribution will influence compressibility and dry density of the compressed granular bentonite materials.In the present work,four types of granular bentonite materials and bentonite powder had been selected and the compressibility and the degree of compaction of these packing materials had been studied.The results showed that the granular bentonite material contains 30%(in weight)powder and 70%(in weight)pellets sized between 2 and 5 mm had the best cost performance,such as,higher dry density,higher compacted dry density,easy to produce.
HLW disposal Granular bentonite materials Compressibility Compacted dry density
Guoliang Ma Huyuan Zhang Zhenyan Su
School of Civil Engineering and Mechanics,Lanzhou University,Lanzhou,China School of Civil Engineering and Mechanics,Lanzhou University,Lanzhou,China;Key Laboratory of Mechani
国际会议
The 8th International Congress on Environmental Geotechnics(第八届国际环境土工大会)
杭州
英文
317-325
2018-10-28（万方平台首次上网日期，不代表论文的发表时间）