Title:
プレストレスト水硬性硬化体の製造方法
Document Type and Number:
Japanese Patent JP6612599
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a prestressed hydraulic hardened article excellent in tensile strength and shear strength.SOLUTION: There is provided a prestressed hydraulic hardened article 1 manufactured by introducing prestress to a cured body of a cement composition containing cement, silica fume with BET specific surface area of 15 to 25 m/g, an inorganic powder with 50% volume accumulation particle diameter of 0.8 to 5 μm, an aggregate A with maximum particle diameter of 1.2 mm or less, a high performance water-reducing agent, an antifoamer, and water and having percentage of the cement of 55 to 65 vol.%, percentage of the silica fume of 5 to 25 vol.%, and percentage of the inorganic powder of 15 to 35 vol.% in total amount of 100 vol.% of the cement, the silica fume, and the inorganic powder.SELECTED DRAWING: Figure 1
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Inventors:
Katsuya Kono
Kishi Ryu
Toshitsugu Tanaka
Kishi Ryu
Toshitsugu Tanaka
Application Number:
JP2015228618A
Publication Date:
November 27, 2019
Filing Date:
November 24, 2015
Export Citation:
Assignee:
Taiheiyo Cement Co., Ltd.
International Classes:
C04B40/02; B28B11/24; B28B23/04; C04B7/02; C04B14/06; C04B14/38; C04B14/48; C04B16/06; C04B18/14; C04B20/00; C04B24/26; C04B28/04
Domestic Patent References:
| JP2011507787A | ||||
| JP2004123414A | ||||
| JP2001151542A | ||||
| JP2012001427A | ||||
| JP3261678A | ||||
| JP2004155623A |
Attorney, Agent or Firm:
Naoyuki Koda
Shuichi Kitamura
Toshiya Murachi
Shuichi Kitamura
Toshiya Murachi