地盤注入用水硬性セメント組成物およびそれを用いた地盤改良工法
- 专利权人:
- 发明人:
- 申请号：
- JP20110529974
- 公开号：
- JP5769198(B2)
- 申请日:
- 2010.09.07
- 申请国别(地区):
- 日本
- 年份:
- 2015
- 代理人:
- 摘要：
Disclosed are: a hydraulic cement composition for injecting into soil, which has excellent penetrability and flow separation-preventing performance and also having a satisfactory level of strength development and excellent long-term durability; and a method for improving soil using the hydraulic cement composition. Specifically disclosed is a hydraulic cement composition for injecting into soil, which comprises a blast furnace slug micropowder, a classified cement, a polyacrylic acid dispersant, and a silicic acid alkali metal salt that can act as a flow separation inhibitor. The hydraulic cement composition is characterized in that the molar ratio (n) of the silicic acid alkali metal salt in general formula (1) is 3.5 or more and the the silicic acid alkali metal salt is contained in an amount of 0.2 to 7 parts relative to the total amount (100 parts) of the blast furnace slug micropowder and the classified cement. R2O?nSiO2 (R: an alkali metal) (1)
- 来源网站：
- 中国工程科技知识中心
