Prestressed pavement system
US6409423B1 · kind B1 · utility
7Cited by
19References
26Claims
0Family size
Inventor
Key dates
| Filing date | Mar 15, 1996 |
| Grant date | Jun 25, 2002 |
| Priority date | — |
| Expiry date | Mar 15, 2016 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C2201/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A prestressed pavement has apparatus to prestress the slabs, has slab abutments to resist the prestress force, has short-life friction-reducing medium to prevent the slab early cracking, has restraints to prevent the slab buckling, and has accumulators to control the prestress. The pavement does not need longitudinal tensile material, and can be built by continuous and one-time concrete casting. The prestressing is simple, fast, and may be delayed or made by stages. The techniques can be used to convert existing non-prestressed concrete pavements to prestressed pavements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.