Development of a grout database for geological disposal of high-level radioactive waste |
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| Authors: | Hidenori Tsuda Colin Walker Fumiaki Shinkai Hirokazu Kishi Mikazu Yui |
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| Affiliation: | 1. Geological Isolation Research and Development, Japan Atomic Energy Agency , 4–33, Muramatsu, Tokai-mura, Naka-gun, Ibaraki , 319-1194 , Japan tsuda.hidenori@jaea.go.jp;3. Geological Isolation Research and Development, Japan Atomic Energy Agency , 4–33, Muramatsu, Tokai-mura, Naka-gun, Ibaraki , 319-1194 , Japan;4. Environmental and Geotechnical Engineering Department, Pacific Consultants Co. Ltd , 1–7–5, Sekido, Tama-shi, Tokyo , 206-8550 , Japan;5. Civil and Architecture Engineering Center, The Tokyo Electric Power Co. Inc , 1–1–3, Uchisaiwai-cho, Chiyoda-ku, Tokyo , 100-8560 , Japan;6. Nuclear Science Research Institute, Japan Atomic Energy Agency , 2–4, Shirane Shirakata, Tokai-mura, Naka-gun, Ibaraki , 319-1195 , Japan |
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| Abstract: | Japan Atomic Energy Agency (JAEA) has developed a grout database (GDB) comprising the latest technical data of grout materials relevant to the geological disposal of high-level radioactive waste (HLW). Currently, only newly developed grout materials of low pH cements, superfine spherical silica and colloidal silica, which are expected to provide a target pH ≤ 11 leachate, are included in the GDB. Case examples from on-site works and laboratory-based tests that have been published in the literature have been used to add construction and material details to the GDB. The GDB is available online (https://groutdb.jaea.go.jp/grout/ [in Japanese]) for registered users to obtain and provide data of grout technology. Furthermore, the GDB can be used to correlate requirements of mechanical, physical, and/or chemical properties of a grout material to specifically address concerns over safety assessment, material and injection method development, and/or prediction of grout penetration. |
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| Keywords: | grout database (GDB) geological disposal high-level radioactive waste (HLW) grouting low pH cement plastic viscosity safety assessment |
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