Method of finishing plastic concrete mixture
US6780369B1 · kind B1 · utility
33Cited by
10References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 2, 1999 |
| Grant date | Aug 24, 2004 |
| Priority date | — |
| Expiry date | Aug 2, 2019 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04F21/242
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of finishing concrete using a vibrating tool to consolidate a “dry shake” aggregate into the upper layer of the concrete. The use of the vibrating tool causes moisture within the concrete mass to migrate into the surface layer where the moisture may hydrate the aggregates in the dry shake mixture. The ability to cause upward migration of water in the concrete mass provides a larger window of finishability for the concrete. The vibrations also provide thorough consolidation of aggregates in the upper layer of the concrete mass helping to prevent delamination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.