Title:
INJECTION AGENT FOR GROUND
Document Type and Number:
Japanese Patent JP3431725
Kind Code:
B2
Abstract:
PURPOSE: To obtain an injection agent high in permeability, giving highly strong and stable improved grounds, and increasing the strengths of the grounds with their ages.
CONSTITUTION: This injection agent is produced by adding (B) magnesium silicofluoride as a hardening agent preferably in a concentration of 10-20wt.% to a sol containing silicic acid and alumina (preferably a sol obtained by adding an acid aqueous solution to (A) a silica-alumina composite sol comprising the silicic acid and the alumina bound with each other and subsequently forcibly mixing the gelation product). The component A contains the alumina and the silica in a molar ratio of 1:(0.5-20), and the silicic acid and the alumina are contained in the sol in a total amount of 10-35 wt.%.
Inventors:
Minoru Takehiro
Takanori Minori
Shoichi Ogawa
Yoshihiko Okada
Takanori Minori
Shoichi Ogawa
Yoshihiko Okada
Application Number:
JP13505995A
Publication Date:
July 28, 2003
Filing Date:
June 01, 1995
Export Citation:
Assignee:
Taiheiyo Cement Co., Ltd.
International Classes:
E02D3/12; C09K17/02; C09K17/08; C09K17/12; C09K103/00; (IPC1-7): C09K17/12; C09K17/02; C09K17/08; E02D3/12
Domestic Patent References:
| JP6116560A | ||||
| JP5132309A | ||||
| JP493409A | ||||
| JP397648A | ||||
| JP4996515A |
Attorney, Agent or Firm:
Miyuki Ariga (3 outside)
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