Bridge joint construction
US5024554A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1990 |
| Grant date | Jun 18, 1991 |
| Priority date | — |
| Expiry date | Feb 22, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01D19/067
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for constructing a bridge joint in a channel overlying an expansion joint involves lining the channel with a thermoplastic asphaltic elastomeric binder followed by successive applications of layers of aggregate and binder mixture wherein the thickness of each layer is restricted to about the maximum dimension of the aggregate in the layer. Care is taken to insure that both the binder and the aggregate are hot when the layered joint is formed to insure good bonding between layers and with the roadway material. The aggregate of each layer is raked to project upwardly from the mass of the layer before a subsequent layer is applied to enhance the interlock between layers. A final layer containing smaller aggregate is applied at the joint top and the joint is then sealed and rolled to form an integrated, resilient load bearing structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.