Pavement systems with geocell and geogrid
US10753049B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2019 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Sep 5, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C3/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Certain pavement systems and methods for paving are suitable for locations containing a generally weak subgrade with a California Bearing Ratio of four (4) or lower. The pavement system includes a first geogrid layer placed directly on the subgrade; a first granular layer upon the first geogrid layer, the first granular layer having a thickness of from 0.5 times to 20 times the aperture distance of the geogrid layer; a first geocell layer upon the first granular layer comprising a geocell and an infill material; and a capping layer over the geocell layer. A second geocell/geogrid layer can be placed beneath the capping layer, if desired. An optional surface layer may be applied upon the capping layer if desired. The resulting pavement system provides long-term support for pavements applied over the pavement system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.