Title:
セメント組成物
Document Type and Number:
Japanese Patent JP5489430
Kind Code:
B2
Abstract:
To provide a shrinkage reducing agent for a cement composition with which a cement composition exhibits satisfactory durability and further has sufficient shrinkage reducing performance, and to provide a cement composition.
The shrinkage reducing agent for cement composition contains a water-insoluble compound as an A component whose saturation concentration at 20°C to water is <1 wt.% and a surfactant as a B component whose HLB (Hydrophil-Lipophil-Balance) value is ≥9 as effective components, The cement composition contains the shrinkage reducing agent for cement composition.
COPYRIGHT: (C)2010,JPO&INPIT
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Inventors:
Yuki Nishi
Nawa Toyoharu
Susumu Hashizume
Kazutoshi Toda
Nawa Toyoharu
Susumu Hashizume
Kazutoshi Toda
Application Number:
JP2008199021A
Publication Date:
May 14, 2014
Filing Date:
July 31, 2008
Export Citation:
Assignee:
Floric Co., Ltd.
National University Corporation Hokkaido University
National University Corporation Hokkaido University
International Classes:
C04B24/08; C04B24/32; C04B28/02; C04B103/60; C04B111/34; C04B111/76
Domestic Patent References:
| JP2002234763A | ||||
| JP2008133176A | ||||
| JP2005089196A | ||||
| JP61270247A |
Other References:
河野俊夫,界面活性剤-消泡剤系のコンクリート乾燥収縮低減効果とその機構についての一考察,セメント技術年報,日本,社団法人セメント協会,1977年12月25日,31,第210-214頁
Attorney, Agent or Firm:
Hiroaki Sakai