Title:
セメント添加材及びセメント組成物
Document Type and Number:
Japanese Patent JP4392765
Kind Code:
B2
Abstract:
A cement additive contains industrial waste and has the effect of inhibiting formation of monosulfate in a hardened cementitious material. The cement additive contains specifically calcium carbonate, gypsum and coal ash and/or blast-furnace slag powder. This enables efficient use of industrial waste, allows inhibiting monosulfate formation in the hardened cementitious material, and allows producing a hardened cementitious material having good durability (sulfate resistance).
Inventors:
Hirao Sora
Kazuo Yamada
Kiyoshi Koibuchi
Nobukazu Ninohe
Kazuo Yamada
Kiyoshi Koibuchi
Nobukazu Ninohe
Application Number:
JP2007540946A
Publication Date:
January 06, 2010
Filing Date:
October 13, 2006
Export Citation:
Assignee:
Taiheiyo Cement Co., Ltd.
Day C, Inc.
Day C, Inc.
International Classes:
C04B22/10; C04B14/28; C04B18/08; C04B18/10; C04B18/14; C04B22/14; C04B28/04; C04B111/20
Domestic Patent References:
| JP2005272222A | ||||
| JP2001220197A | ||||
| JP11209159A | ||||
| JP11157889A | ||||
| JP9255327A | ||||
| JP8268744A | ||||
| JP8034644A | ||||
| JP7053245A | ||||
| JP4021554A | ||||
| JP61097154A |
Attorney, Agent or Firm:
Yuji Hayakawa
Masataka Ota
Masataka Ota