[3G09-13] Geopolymer Solidification

[3G13] Optimization of the composition of geopolymer for cesium immobilization

*Tsuneki Ichikawa¹, Kazuo Yamada², Sadayuki Watanabe³, Kazuko Haga⁴, Masahiro Osako² (1. Hokkaido University & National Institute for Environmental Studies, 2. National Institute for Environmental Studies, 3. Tokyo Metropolitan Industrial Technology Research Institute, 4. Taiheiyo Consultant Co. Ltd.)

Keywords:Cesium immobilizer, Geopolymer, Metakaolin, Sodium waterglass, Ion exchange, Si/Al ratio

The optimal composition of geopolymer as a Cs immobilizer was investigated for safe disposal of Cs-enriched dust that was generated by volume reduction of radioactive Cs-contaminated wastes.