Method for improving the characteristics of sulfate bearing soils
US5122012A · kind A · utility
14Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 5, 1991 |
| Grant date | Jun 16, 1992 |
| Priority date | — |
| Expiry date | Feb 5, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S106/90
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method is shown for reducing the swelling action of sulfates in clay bearing soils while increasing the bearing strength values of the soils by treating soils having high sulfate content with a barium containing compound in an amount effective to react with the sulfate present in the soils, thereby forming less soluble reaction products and decreasing the tendency of the soil to form ettringite. The soil is further stabilized by the application of lime.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.