Geocell for load support applications
US8157472B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2011 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Aug 24, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D17/202
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A geocell is disclosed that has high strength and stiffness, such that the geocell has a storage modulus of 500 MPa or greater at 23° C.; a storage modulus of 150 MPa or greater at 63° C. when measured in the machine direction using Dynamic Mechanical Analysis (DMA) at a frequency of 1 Hz; a tensile stress at 12% strain of 14.5 MPa or greater at 23° C.; a coefficient of thermal expansion of 120×10−6/° C. or less at 25° C.; and/or a long term design stress of 2.6 MPa or greater. The geocell is suitable for load support applications, especially for reinforcing base courses and/or subbases of roads, pavement, storage areas, and railways.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.