Composition for making impermeable walls and other underground structures
US4514228A · kind A · utility
5Cited by
4References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 8, 1983 |
| Grant date | Apr 30, 1985 |
| Priority date | — |
| Expiry date | Jul 8, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A composition for making impermeable walls and other underground structures comprising water, a cement, a silica compound in a dispersed form, and an activating agent selected from the group consisting of an alkaline base and an alkaline salt of a weak acid which do not contain silica, the ratio by weight of lime to silica being less than 1 and preferably between approximately 0.3 to 0.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.