A study on leaching behaviour of cement blocks used as matrix for fixation of Cs activity along with ferric

[摘要] Study on the cementation of the regenerated activity (from spent resin using ferric as regenerant) containing ferric in cement matrix showed that compressive strength and leaching behaviour are better when the ferric strength was < 5 N. The diffusion coefficient of Cs from the cement matrix was found to be in the range 2.4 Ã�? 10^-5 cm²/day and 5.9 Ã�? 10^-5 cm²/day with ferric solutions of strength in the range 0.5â€�??3 N. When bentonite and vermiculite were included in the cement matrix, the diffusion coefficient of Cs was found to be in the range 6.2 Ã�? 10^-7 cm²/day to 1.26 Ã�? 10^-5 cm²/day with ferric strength in the same range.

[学科分类] 材料工程

[关键词] Spent resin;multi valent;column;diffusion.