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Journal Articles

Development of a grout database for geological disposal of high-level radioactive waste

Tsuda, Hidenori; Walker, C.; Shinkai, Fumiaki*; Kishi, Hirokazu*; Yui, Mikazu

Journal of Nuclear Science and Technology, 49(11), p.1110 - 1113, 2012/11

 Times Cited Count:4 Percentile:36.4(Nuclear Science & Technology)

Journal Articles

Fundamental study on a grout penetration model for a HLW repository

Fujita, Tomo; Shinkai, Fumiaki*; Nobuto, Jun*

Journal of Energy and Power Engineering, 6(8), p.1191 - 1203, 2012/08

This study aims at validating applicability of the theoretical formula by Gustafson and Still to analysis of permeation behavior of Bingham fluid into a one-dimensional micro-fissure by comparing analysis results with laboratory tests data conducted using bentonite slurry as a Bingham fluid. The results showed that the calculation values by Gustafson and Stille model agreed well with values of laboratory penetration test.

Journal Articles

The Project for grouting development for the high level radioactive waste repository, 6; Analysis of the in-situ grouting test results using Gustafson and Stille model

Tsuji, Masakuni*; Nobuto, Jun*; Okihara, Mitsunobu*; Sugita, Yutaka; Fujita, Tomo; Shinkai, Fumiaki

Doboku Gakkai Heisei-22-Nendo Zenkoku Taikai Dai-65-Kai Nenji Gakujutsu Koenkai Koen Gaiyoshu (DVD-ROM), p.93 - 94, 2010/09

no abstracts in English

Journal Articles

The Project for grouting development for the high level radioactive waste repository, 3; Durability test of coloidal silica grout

Sugiyama, Hirokazu*; Nobuto, Jun*; Fukuoka, Naomi; Shinkai, Fumiaki; Shimada, Shunsuke*; Koyama, Tadao*; Kijima, Masashi*; Terashima, Rei*

Doboku Gakkai Heisei-22-Nendo Zenkoku Taikai Dai-65-Kai Nenji Gakujutsu Koenkai Koen Gaiyoshu (DVD-ROM), p.87 - 88, 2010/09

no abstracts in English

JAEA Reports

Development of grout materials for a geological disposal system for high-level radioactive waste

Fukuoka, Naomi; Shinkai, Fumiaki; Miura, Norihiko*; Nobuto, Jun*; Yamada, Tsutomu*; Naito, Morimasa

JAEA-Data/Code 2010-005, 353 Pages, 2010/07

JAEA-Data-Code-2010-005-01.pdf:8.91MB
JAEA-Data-Code-2010-005-02.pdf:46.47MB

High-level radioactive waste management in Japan is based on the multi-barrier concept, composed of the engineered barrier system and the surrounding geological formations. Although cementitious materials are commonly used for rock support, lining, and grouting, their pH plume are considered to have an adverse effect on long-term safety of a geological disposal system. In addition, during the emplacement of waste package with buffer material, it is required to limit amount of groundwater inflow into a disposal pit or tunnel to a certain level by grouting because the bentonite clay buffer is easy to swell in time by contact with the groundwater. Therefore, it is necessary to develop new grout materials with penetrability for smaller fractures. This report shows the most appropriate composition of new grout materials to be suitable for the in-situ experiment based on the result of indoor test.

Oral presentation

Preliminary evaluation of grouting performance for the fracture media

Kobayashi, Shinji*; Nobuto, Jun*; Sugiyama, Hirokazu*; Kobayashi, Yasushi; Shinkai, Fumiaki

no journal, , 

no abstracts in English

Oral presentation

Oral presentation

The Project for grouting technology development for the high level radioactive waste repository, 9; Development of grout penetration model

Nobuto, Jun*; Okihara, Mitsunobu*; Kobayashi, Shinji*; Shinkai, Fumiaki

no journal, , 

no abstracts in English

Oral presentation

The Project for grouting technology development for the high level radioactive waste repository, 2; Development of grouting materials

Yamada, Tsutomu; Naito, Morimasa; Kobayashi, Yasushi; Shinkai, Fumiaki

no journal, , 

no abstracts in English

Oral presentation

The Project for grouting technology development for high level radioactive waste repository, 7

Izumi, Atsushi; Naito, Morimasa; Yamada, Tsutomu; Shinkai, Fumiaki

no journal, , 

no abstracts in English

10 (Records 1-10 displayed on this page)
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