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Title:
セメント添加材及びセメント組成物
Document Type and Number:
Japanese Patent JP5307674
Kind Code:
B2
Abstract:

To provide a cement admixture which is less in the deterioration of long term strength development even when the quantity to be added to cement is ≥10 mass%, and to provide a cement composition obtained by adding the cement admixture.

The cement admixture contains 2CaO-SiO2and 2CaO-Al2O3-SiO2as essential ingredients, 10-100 pts.mass in total of 2CaO-Al2O3-SiO2and 4CaO-Al2O3-Fe2O3and ≤20 pts.mass 3CaO-Al2O3per 100 pts.mass 2CaO-SiO2, and further contains 0.01-5.0 mass% V2O5. The cement composition contains ≤50 mass% cement admixture to cement by inner percentage.

COPYRIGHT: (C)2011,JPO&INPIT


Inventors:
Maiko Ohno
Hirao Sora
Daisuke Kurokawa
Application Number:
JP2009223378A
Publication Date:
October 02, 2013
Filing Date:
September 28, 2009
Export Citation:
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Assignee:
Taiheiyo Cement Co., Ltd.
International Classes:
C04B22/08; C04B22/14; C04B28/02
Domestic Patent References:
JP2007514634A
JP200935451A
Attorney, Agent or Firm:
Michiharu Soga
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Kazuhiro Oyaku