Method for producing enhanced soil stabilization reactions between lime and clay soils due to the effect of silica addition
US5336022A · kind A · utility
12Cited by
14References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1992 |
| Grant date | Aug 9, 1994 |
| Priority date | — |
| Expiry date | Sep 11, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S106/90
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method is shown for stabilizing clay bearing soils in which a silica compound is incorporated into the soils in addition to the application of lime. The silica compound can be either an amorphous, silica fume, a crystalline silica, a silica gel, sodium silicate, potassium silicate, finely ground glass or combinations thereof. The silica compound promotes the formation of calcium silicate hydrates over the formation of calcium aluminate hydrates in the resulting pozzolanic reaction occurring in the clay bearing soils. The silica compound and lime can be incorporated into the soils in a single step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.