Title:
PANEL FOR CONSTRUCTING VAULT, AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
Japanese Patent JP2019104650
Kind Code:
A
Abstract:
To provide a panel for constructing a vault high in compression pressure and flexure strength, and consisting of a material excellent in fracture resistance and fire resistance.SOLUTION: There is provided a panel 1 for constructing a vault consisting of a cement hardened body, the cement hardened body is a hardened body of a cement composition containing cement, silica fume having BET specific surface area of 15 to 25 m/g, an inorganic powder having 50% volume accumulation particle diameter of 0.8 to 5 μm, an aggregate A having maximum particle diameter of 1.2 mm or less, a high performance water reducing agent, an antifoaming agent, a metal fiber having diameter of 0.01 to 1.0 mm and length of 2 to 30 mm, an organic fiber and water, with percentage of the cement of 55 to 65 vol.%, percentage of the silica fume of 5 to 25 vol.%, 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, and percentage of the metal fiber in the cement composition of over 3.0 vol.% and 4.5 vol.% or less.SELECTED DRAWING: Figure 1
More Like This:
Inventors:
MORI KANAKO
KONO KATSUYA
TADA KATSUHIKO
KONO KATSUYA
TADA KATSUHIKO
Application Number:
JP2017238530A
Publication Date:
June 27, 2019
Filing Date:
December 13, 2017
Export Citation:
Assignee:
TAIHEIYO CEMENT CORP
International Classes:
C04B28/02; B28B11/24; C04B14/06; C04B14/48; C04B16/06; C04B18/14; C04B20/00; C04B24/26; E04B1/94; E04B2/56; E04C2/04; E05G1/024
Domestic Patent References:
| JPH08312249A | 1996-11-26 | |||
| JPH08312250A | 1996-11-26 | |||
| JP2004508256A | 2004-03-18 | |||
| JP2012153539A | 2012-08-16 | |||
| JP2007076948A | 2007-03-29 |
Foreign References:
| WO2016031835A1 | 2016-03-03 |
Attorney, Agent or Firm:
Naoyuki Koda
Shuichi Kitamura
Toshiya Murachi
Shuichi Kitamura
Toshiya Murachi