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

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 JP4791226

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 excellent in neutralization resistance and salt damage resistance 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 the reinforcing rod is composed of carbon steel having weather resistance. The reinforcing rod preferably comprises, by weight, ≤0.15% C, ≤0.7% Si, 0.10 to 2.00% Mn, >0.03 to 0.15% P, ≤0.020% S, 0.010 to 0.100% Al, 0.2 to 4.0% Ni, <0.1% Cu and 0.10 to 4.00% Mo, and the balance Fe with inevitable impurities.

Inventors:

Fishing Noro
Hisahiro Matsunaga
Kyono Kazuaki

Application Number:

JP2006097645A

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; C04B18/08; C04B18/14; C04B28/08; C04B28/12; C22C38/00; C22C38/16; F27D15/00; C04B111/22; C04B111/24; C04B111/26

Domestic Patent References:

JP2004299922A
JP2003055025A
JP2004051425A
JP2003306359A
JP8134587A
JP11080880A
JP11021622A
JP7040331A
JP2002059076A
JP2003165751A
JP2004051426A
JP2004149333A
JP2001163656A
JP2005145747A
JP2002068804A
JP2005298267A
JP2004292295A
JP2001270746A
JP2001322842A
JP2001261421A

Attorney, Agent or Firm:

Hiroaki Sakai

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