Wide speed range concrete monitoring calibration
US11667054B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2015 |
| Grant date | Jun 6, 2023 |
| Priority date | — |
| Expiry date | Mar 17, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2011/0053
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system for concrete monitoring calibration using truck-mounted mixer drum jump speed data selectively assimilated from previous deliveries. The method involves measuring energy at a first drum speed and a second drum speed. Slump is calculated using low speed energy/speed/slump curve data, or pre-stored equation wherein slump is derived as a function of slope of the line. The energy, speed, slump relationship in the provided concrete is compared to at least two pre-stored data curves across drum speed ranges of 15 0.5 RPM-6 RPM and 6 RPM-20 RPM, to ascertain whether the provided concrete matches any of the stored curve data; either activating the monitoring system for all drum speed ranges where a match is confirmed or allowing the monitoring system to calculate slump only at low drum speeds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.