著者

松田 樹

出版者

阪神近代文学研究会

雑誌

阪神近代文学研究 (ISSN:13472208)

巻号頁・発行日

no.18, pp.46-59, 2017-05

著者

松田 樹

出版者

神戸大学文学部国語国文学会

雑誌

国文論叢 (ISSN:02866412)

巻号頁・発行日

no.56, pp.60-74, 2021-03

著者

坂本 浩幸 赤木 洋介 山田 一夫 舘 幸男 福田 大祐 石松 宏一 松田 樹也 齋藤 希 上村 実也 浪平 隆男 重石 光弘

出版者

一般社団法人 日本原子力学会

雑誌

日本原子力学会和文論文誌 (ISSN:13472879)

巻号頁・発行日

vol.17, no.2, pp.57-66, 2018 (Released:2018-05-15)

参考文献数

22

被引用文献数

1

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Concrete debris contaminated with radioactive cesium and other nuclides has been generated by the accident in the Fukushima Dai-ichi nuclear power plant. Moreover, there is concern that a large amount of radioactive concrete waste will be generated by the decommissioning of nuclear power plants in the future. Although conventional techniques are effective in decontaminating concrete with flat surfaces such as floors and walls, it is not clear what techniques to apply for decontaminating radioactive concrete debris. In this study, focusing on a pulsed power discharge technique, fundamental experimental work was carried out and the applicability of the technique to decontaminating radioactive concrete debris associated with the accident in the Fukushima Dai-ichi nuclear power plant was evaluated. The decontamination of concrete by applying the aggregate recycling technique using the pulsed power discharge technique was evaluated by measuring the radioactivity concentration of the divided aggregate and sludge from the contaminated concrete using a Ge-semiconductor detector. It indicated a reduction of the radioactivity concentration in the recovered aggregate and an increase in the radioactivity concentration in the sludge. These findings suggest that the division of the contaminated concrete debris into aggregate and sludge could result in the decontamination and reuse of the aggregate, which would reduce the amount of contaminated concrete debris.