Title:
セメント組成物及びセメント質硬化体の製造方法
Document Type and Number:
Japanese Patent JP7020893
Kind Code:
B2
Abstract:
To provide a cement composition capable of manufacturing a cement hardened body having high compression strength and high flexure strength, and excellent in impact resistance.SOLUTION: There is provided 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 metal fiber having diameter of 0.01 to 1.0 mm and length of 2 to 30 mm, a high performance water reducing agent, an antifoam agent, 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: None
Inventors:
Kanako Mori
Katsuya Kono
Katsuhiko Tada
Katsuya Kono
Katsuhiko Tada
Application Number:
JP2017238394A
Publication Date:
February 16, 2022
Filing Date:
December 13, 2017
Export Citation:
Assignee:
Taiheiyo Cement Co., Ltd.
International Classes:
C04B28/02; B28B11/24; C04B14/06; C04B14/48; C04B16/06; C04B18/14; C04B20/00; C04B24/26
Domestic Patent References:
| JP2005001959A | ||||
| JP2017024968A |
Other References:
三好彰ら,資源処理技術,1990年,Vol.37, No,1,pp.37-43
Attorney, Agent or Firm:
Hokuta Naoyuki
Akihiko Kitamura
Toshiya Murachi
Akihiko Kitamura
Toshiya Murachi