Method and probe for measuring buoyancy in concrete
US9702863B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 11, 2014 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Jul 15, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2009/263
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The method can determine a density of concrete based on the measured buoyancy of a buoy immersed in fresh concrete contained in a ready mix drum and rotatable therein as the drum is rotated, the method can include obtaining a first measurement of a force applied to the buoy while the buoy is being moved tangentially in the fresh concrete, obtaining a second measurement of a force applied to the buoy while the buoy is being moved tangentially in the fresh concrete by rotation of the cylindrical wall, obtaining an indication of the buoyancy of the buoy in the concrete including factoring out the yield effect based on at least the first measurement and the second measurement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.