Title:
CEMENT-BASED MATERIAL FOR RADIOACTIVE-WASTE DISPOSAL SITE
Document Type and Number:
WIPO Patent Application WO/2017/022345
Kind Code:
A1
Abstract:
A cement-based material for radioactive-waste disposal sites which comprises a base cement and a silica powder that is porous and amorphous. The amount of the silica powder is in the range of 35-65% with respect to the mass of the whole cement-based material.
Inventors:
KONDOH KATSUYOSHI (JP)
KANBARA HITOSHI (JP)
KANAZAWA TOMOHIRO (JP)
NA SEUNGHYUN (JP)
NISHIKAWA NANA (JP)
KANBARA HITOSHI (JP)
KANAZAWA TOMOHIRO (JP)
NA SEUNGHYUN (JP)
NISHIKAWA NANA (JP)
Application Number:
PCT/JP2016/068213
Publication Date:
February 09, 2017
Filing Date:
June 20, 2016
Export Citation:
Assignee:
KONDOH KATSUYOSHI (JP)
NIPPON STEEL & SUMIKIN CEMENT CO LTD (JP)
NIPPON STEEL & SUMIKIN CEMENT CO LTD (JP)
International Classes:
G21F9/36; C04B14/04; C04B18/10; C04B20/00; C04B28/02
Domestic Patent References:
| WO2008053711A1 | 2008-05-08 |
Foreign References:
| JP2000065992A | 2000-03-03 | |||
| JPH05194007A | 1993-08-03 | |||
| JPS5978968A | 1984-05-08 | |||
| JP2001316145A | 2001-11-13 | |||
| JP2001294471A | 2001-10-23 | |||
| JPH04219353A | 1992-08-10 |
Other References:
ICHIRO WADA ET AL.: "Effect of High-Reactive Rice Husk Ash Addition on Strength Properties of Concrete", PROCEEDINGS OF THE JAPAN CONCRETE INSTITUTE, vol. 21, no. 2, 1999, pages 175 - 180
Attorney, Agent or Firm:
IMY INTERNATIONAL PATENT OFFICE, P.C. (JP)
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