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Title:
【発明の名称】粒度を調整したセメント組成物
Document Type and Number:
Japanese Patent JP2816860
Kind Code:
B2
Abstract:
PURPOSE:To improve flowability and strength by adding superfine powder having low hydraulic property and gypsum to cement clinker reduced a fine powder part. CONSTITUTION:Cement clinker is crushed and reduced a fine powder part having <=15mum grain size. Superfine powder having <=5mum grain size and low hydraulic property, e.g. blast furnace slag is added to the cement clinker by <=30wt.% and gypsum is further added.

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Inventors:
Kiyohiko Uchida
Yamashita Junsei
Masayoshi Konishi
Application Number:
JP13615789A
Publication Date:
October 27, 1998
Filing Date:
May 31, 1989
Export Citation:
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Assignee:
Sumitomo Osaka Cement Co., Ltd.
International Classes:
C04B7/345; C04B7/19; C04B28/04; (IPC1-7): C04B28/04; C04B7/19; C04B7/345
Domestic Patent References:
JP6428254A
JP5333220A
JP55162457A
JP6197154A
Other References:
笠井・小林編 セメント・コンクリート用混和材料 昭和６１年５月１５日 技術書院発行 ４３−４５．８４−８５．１０７−１１０頁
荒井康夫著 セメントの材料化学 昭和６１年１０月３１日 大日本図書株式会社 ２１４−２１５頁
Attorney, Agent or Firm:
Tsuchihashi Aoi



 
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