Method of rendering soils impervious
US4762443A · kind A · utility
5Cited by
2References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 30, 1986 |
| Grant date | Aug 9, 1988 |
| Priority date | — |
| Expiry date | Jul 30, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/00732
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to a method of rendering a soil or another material like a mortar, a binder, or a concrete impervious by injecting it with a silica solution. A finely ground powdered compound containing calcium with a solubility in water of between approximately 0.01 g/l and approximately 2 g/l is mixed into the silica solution, which has a ratio of SiO.sub.2 to Na.sub.2 O of between 1 and 1.3, before injection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.