Railway roadbeds with rail slabs, and method for preparing
US5163614A · kind A · utility
6Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1991 |
| Grant date | Nov 17, 1992 |
| Priority date | — |
| Expiry date | Mar 13, 2011 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B2204/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A railroad bed and method for making, wherein a less compact asphalt layer is spread on top of a more compact one, a trough shaped ballast bedding element suitably of reinforced concrete is placed over the aforementioned asphalt layers, a slab bearing the rails is applied into the trough-shaped ballast bedding, and an elastic, plastic-modified bituminous mortar is injected into the space between the slab and the ballast bedding element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.