Oral Presentation

IV. Nuclear Fuel Cycle and Nuclear Materials » 405-3 Decommissioning Technology of Nuclear Facilities

[3E10-17] Dcommissioning technologies for Fukushima accident

Fri. Sep 9, 2016 2:45 PM - 4:50 PM Room E (Kumume City Plaza - Kurumeza Theatre)

Chair: Masahide Takano (JAEA)

+Add all to schedule

2:45 PM - 3:00 PM

[3E10] Strength evaluation of reinforced concrete structure subjected to severe accident

Part 1 Strength of concrete subjected to heating and water exposure

Hiroshi Masaki¹, Norihiko Tanaka¹, Yoshiyuki Kawaharada¹, Koichi Saito², Yasuyuki Goto², Osamu Kontani³, *Shunsuke Ishikawa³, Keishi Kawasumi³ (1.Toshiba Corporation, 2.Hitachi-GE Nuclear Energy, Ltd., 3.Kajima Corporation)

3:00 PM - 3:15 PM

[3E11] Strength evaluation of reinforced concrete structure subjected to severe accident

Part 2 Structural experiment of scale model after heating and water exposure

Hiroshi Masaki¹, Norihiko Tanaka¹, Yoshiyuki Kawaharada¹, Koichi Saito², Yasuyuki Goto², Osamu Kontani³, *Takashi Okayasu³, Shunsuke Ishikawa³, Keishi Kawasumi³ (1.Toshiba Corporation, 2.Hitachi-GE Nuclear Energy, Ltd., 3.Kajima Corporation)

3:15 PM - 3:30 PM

[3E12] Strength evaluation of reinforced concrete structure subjected to severe accident

Part 3 Simulation analysis for Structural experiment of scale model

Yasuo Hijioka¹, Hiroshi Masaki¹, Koichi Saito², Yasuyuki Goto², Osamu Kontani³, Shunsuke Ishikawa³, *Keishi Kawasumi³ (1.Toshiba Corporation, 2.Hitachi-GE Nuclear Energy, Ltd., 3.Kajima Corporation)

3:30 PM - 3:45 PM

[3E13] Development of Repair and Water leakage Stoppage Technology for S/C using washout-resistant concrete

(1)Outline of experiment (overview, mixing test for mix propotion of concrete and first concrete placing)

*Hiroshi Masaki¹, Yuji Murakami², Toshiaki Wakui², Hisashi Imai², Sumiyuki Sawada², Toshinori Dekura¹ (1.TOSHIBA CORPORATION, 2.HAZAMA ANDO CORPORATION)

3:45 PM - 4:00 PM

[3E14] Development of Repair and Water leakage Stoppage Technology for S/C using washout-resistant concrete

(2)Investigation of concrete mix propotion for washout-resistant concrete

*Yuji Murakami¹, Sumiyuki Sawada¹, Hisashi Imai¹, Toshiaki Wakui¹, Ryo Yamashita¹, Hiroshi Masaki², Shigeyoshi Nagataki³ (1.HAZAMA ANDO CORPORATION, 2.TOSHIBA CORPORATION, 3.Professor Emeritus, Tokyo Institute of Technology)

4:00 PM - 4:15 PM

[3E15] Development of Repair and Water leakage Stoppage Technology for S/C using washout-resistant concrete

(3)Irradiation test for washout-resistant concrete

*Sumiyuki Sawada¹, Kiyoshi Amemiya¹, Hisashi Imai¹, Yuji Murakami¹, Toshiaki Wakui¹, Hiroshi Masaki² (1.HAZAMA ANDO CORPORATION, 2.TOSHIBA CORPORATION)

4:15 PM - 4:30 PM

[3E16] Development of Repair and Water leakage Stoppage Technology for S/C using washout-resistant concrete

(4)Validation test for long distance fluidity of washout-resistant concrete and flow analysis

*Ryo Yamashita¹, Toshiaki Wakui¹, Yuji Murakami¹, Hisashi Imai¹, Sumiyuki Sawada¹, Hiroshi Masaki² (1.HAZAMA ANDO CORPORATION, 2.TOSHIBA CORPORATION)

4:30 PM - 4:45 PM

[3E17] Development of Repair and Water leakage Stoppage Technology for S/C using washout-resistant concrete

(5)Sealing Experiment of φ50mm hole modeling damaged part on S/C shell

*Hisashi Imai¹, Yuji Murakami¹, Toshiaki Wakui¹, Sumiyuki Sawada¹, Hiroshi Masaki² (1.HAZAMA ANDO CORPORATION, 2.TOSHIBA CORPORATION)

Time reserved for Chair (4:45 PM - 4:50 PM)

Session information