Title:
放射性廃棄物処分場用セメント系材料
Document Type and Number:
Japanese Patent JP6500108
Kind Code:
B2
Abstract:
The cementitious material for a radioactive waste disposal facility includes base cement, and porous and amorphous silica powder. The amount of the silica powder in the entire cementitious material ranges from 35% to 65% on a mass basis.
Inventors:
Katsuyoshi Kondo
Kambara
Tomohiko Kanazawa
Luo Sung
Nana Nishikawa
Kambara
Tomohiko Kanazawa
Luo Sung
Nana Nishikawa
Application Number:
JP2017532419A
Publication Date:
April 10, 2019
Filing Date:
June 20, 2016
Export Citation:
Assignee:
Katsuyoshi Kondo
Nittetsu Sumikin Cement Co., Ltd.
Nittetsu Sumikin Cement Co., Ltd.
International Classes:
G21F9/36; C04B14/06; C04B18/08; C04B18/10; C04B18/14; C04B28/04; C09K17/10
Domestic Patent References:
| JP2000065992A | ||||
| JP5194007A | ||||
| JP59078968A | ||||
| JP2001316145A | ||||
| JP2001294471A | ||||
| JP4219353A |
Foreign References:
| WO2008053711A1 | ||||
| US20080017077 |
Other References:
和田一朗他,高活性もみ殻灰の混和がコンクリートの強度特性に及ぼす影響,コンクリート工学年次論文報告集,日本,公益社団法人 日本コンクリート工学会,1999年,Vol.21,No.2,p.175-180
Attorney, Agent or Firm:
Patent Business Corporation Imy International Patent Office