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Title:
耐中性化性および耐塩害性に優れた鉄筋を有する水和硬化体およびその製造方法
Document Type and Number:
Japanese Patent JP4791229
Kind Code:
B2
Abstract:

To provide a hydrated hardened body having a reinforcing rod excellent in neutralization resistance and salt damage resistance which can made into a structure member having durability over a long period even under environmental conditions that neutralization is apt to progress.

The hydrated hardened body, which has the reinforcing rod at the inside, at least contains: steel making slag; blast furnace slag fine powder; and fly ash, and in which the fly ash content is ≥100 kg/m3, and further, the reinforcing rod is composed of Cr-added steel comprising, by mass, >0.001 to <0.3% C, >0.001 to <0.3% N, >5.0 to <15.0% Cr, >0.1 to <4.0% Si, >0.1 to <4.0% Mn, >0.01 to <1.0% Co, <0.04% Al, <0.04% P and <0.03% S, and the balance Fe with inevitable impurities.

COPYRIGHT: (C)2008,JPO&INPIT


Inventors:
Fishing Noro
Hisahiro Matsunaga
Kyono Kazuaki
Application Number:
JP2006097648A
Publication Date:
October 12, 2011
Filing Date:
March 31, 2006
Export Citation:
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Assignee:
jfe Steel Corporation
Nippon Steel Corporation
SUMITOMO METAL INDUSTRIES,LTD.
KABUSHIKI KAISHA KOBE SEIKO SHO
Nisshin Steel Co., Ltd.
Japan Iron and Steel Federation
International Classes:
C04B28/04; C04B7/153; C04B18/08; C04B18/14; C04B28/08; C04B28/12; C22C38/00; C22C38/58; F27D15/00; C04B111/22; C04B111/24; C04B111/26
Domestic Patent References:
JP2004299922A
JP2003055025A
JP2004051425A
JP2003306359A
JP2002212682A
JP2003165751A
JP2004051426A
JP2004149333A
JP2001163656A
JP2005145747A
JP2002068804A
JP7126812A
JP2005298267A
JP2004292295A
JP2001270746A
JP2001322842A
JP2001261421A
Attorney, Agent or Firm:
Hiroaki Sakai