Title:
吹付け用セメント組成物
Document Type and Number:
Japanese Patent JP6963750
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a cement composition for spraying capable of suppressing dust or rebound without being affected by the state of a rapid hardening agent.SOLUTION: A cement composition for spraying contains cement and limestone fine powder, in which a specific surface area of the limestone fine powder is 3,500-4,500 cm/g, and the content of calcium carbonate in the limestone fine powder is 70-90 mass%, and preferably, further contains an aggregate, an accelerator and water, in which the content of the limestone fine powder is 70-200 kg/m3. The cement composition for spraying contains the limestone fine powder as much as 15-60 mass% to the cement.SELECTED DRAWING: None
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Inventors:
Yuichi Odabe
Yuichi Nakajima
Fukuda Michiya
Yuichi Nakajima
Fukuda Michiya
Application Number:
JP2017246762A
Publication Date:
November 10, 2021
Filing Date:
December 22, 2017
Export Citation:
Assignee:
Sumitomo Osaka Cement Co., Ltd.
International Classes:
C04B28/04; C04B14/28; C04B22/08
Domestic Patent References:
| JP10287461A |
Other References:
石灰石微粉末,コンクリート工学,2014年05月,Vol.52,No.5,405-408
Attorney, Agent or Firm:
Noboru Fujimoto
Hiroaki Nakatani
Hiroaki Nakatani