10:15 AM - 10:30 AM
[2C02] Study on Applicability of Grouting Materials for Retrieval of Fuel Debris
Keywords:Fukushima Dai-ichi NPP, Fuel debris, Geopolymer, Heavy Mud Water
As the alternative of retrieval of fuel debris, the method using grouting materials such as Geopolymer (GP) Sedimentary Heavy Mud Water (HMW) has been proposed.
Since GP is grouted on fuel debris directly and becomes radioactive wastes, heat transfer and mechanical strength properties and hydrogen production characteristics were investigated. The sedimentation behavior of HMW in radiation and high temperature conditions was conducted to confirm the applicability in the condition of the reactors. Furthermore, the radiation shielding performance of these materials was estimated. From these results, the applicability of the method was comprehensively evaluated.
Since GP is grouted on fuel debris directly and becomes radioactive wastes, heat transfer and mechanical strength properties and hydrogen production characteristics were investigated. The sedimentation behavior of HMW in radiation and high temperature conditions was conducted to confirm the applicability in the condition of the reactors. Furthermore, the radiation shielding performance of these materials was estimated. From these results, the applicability of the method was comprehensively evaluated.