Patent · US Expired

Injection process and injection apparatus for solidifying a ground

US4226556A · kind A · utility

6Cited by
7References
17Claims
0Family size

Assignee

Inventor

Key dates

Filing dateSep 18, 1978
Grant dateOct 7, 1980
Priority date
Expiry dateSep 18, 1998

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T436/12
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

An injection process for solidifying a soft ground by injecting a blend of water glass type grout thereinto which is a non-alkaline aqueous solution of silicic acid obtained by the mixing water glass into an aqueous solution of acidic reactant so as to remove alkali from the water glass, and an injection apparatus for practicing the injection process which comprises a mixing container for preparing the non-alkaline aqueous solution of silicic acid by adding and mixing the water glass into the aqueous solution of acidic reactant.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.