Title:
CONCRETE COMPOSITION NEEDLESS TO COMPACT FOR MASS CONCRETE STRUCTURE
Document Type and Number:
Japanese Patent JP3197056
Kind Code:
B2
Abstract:
PURPOSE: To secure flowability and material separation resistance and to obtain a concrete excellent in the physical properties in the hardened concrete such as strength.
CONSTITUTION: A coarse aggregate having 40mm maximum size, a low-heat cement, 165kg/m3 of water, limestone powder and a high-performance AE water reducing agent are mixed. When the volume of the cement is denoted by C, the volume of water by W and the volume of the limestone powder by L, 0.86≤(C+L)/W≤1.18 and 0.47≤L/C≤0.98 are fulfilled.
Inventors:
Hajime Okamura
Katsuyoshi Kanazawa
Abe Akihiro
Arima Isamu
Furuya Nobuaki
Kenjiro Tanaka
Koichi Sato
Shigeyuki Sogo
Ryuichi Chikamatsu
Katsuyoshi Kanazawa
Abe Akihiro
Arima Isamu
Furuya Nobuaki
Kenjiro Tanaka
Koichi Sato
Shigeyuki Sogo
Ryuichi Chikamatsu
Application Number:
JP11698292A
Publication Date:
August 13, 2001
Filing Date:
April 09, 1992
Export Citation:
Assignee:
Hajime Okamura
Honshu-Shikoku Connecting Bridge Public Corporation
Kumagai Gumi Co., Ltd.
Obayashi Corporation
Honshu-Shikoku Connecting Bridge Public Corporation
Kumagai Gumi Co., Ltd.
Obayashi Corporation
International Classes:
C04B28/02; C04B28/08; (IPC1-7): C04B28/08
Attorney, Agent or Firm:
Masahisa Ishida