[3F05-09] Melting Behavior

[3F06] Investigation on thermal deterioration of concreate in severe accident

*Takahito Hareyama¹, Tadashi Narabayashi², Yasunori Yamamoto², Go Chiba², Tsukasa Hayashi³, Takahiro Konno⁴ (1. Hokkaido University, Graduate school of enginieering, 2. Hokkaido University, Faculty of engineering, 3. THE CHUGOKU ELECTRIC POWER, 4. Hitachi-GE Nuclear Energy)

Keywords:Concreate, Magnesia-Carbon brick, High temperature, Thermal deterioration, Void ratio

Development of small type of core catcher is needed. In this investigation, the thermal deterioration of concreate and Magnesia-Carbon brick was evaluated by the measurements of compressive strength, weight, and void ratio. As a result, both of concreate and Magnesia-Carbon brick lost its weight, volume, and strength mostly relate with heating temperature.