Methods for maintaining unpaved roads
US10640673B2 · kind B2 · utility
0Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2016 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | May 25, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21F5/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Methods are described for maintaining unpaved roads. The methods include applying an aqueous composition to a section of an unpaved road (such as a mine haul road in a mine). The aqueous composition includes from 5 to 10,000 ppm of a synthetic polymer in water, and may be applied periodically. The synthetic polymer may be compatible with chemical processes employed by the mine, and the method may also include subsequently mining the section of the mine haul road.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.