Compaction indication by effective rolling radius
US7428455B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 12, 2004 |
| Grant date | Sep 23, 2008 |
| Priority date | — |
| Expiry date | Oct 14, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N3/42
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Accurately determining the compaction state of a base material during the compaction process is a recognized problem in the construction industry. The present invention recognizes that the compaction state of the base material can be determined by ascertaining the effective roller radius of the compactor. In other words, in the case of powered compactors, the effective roller radius will asymptotically approach the actual roller radius as the base material changes from a soft un-compacted condition to a hard compacted state. Monitoring compaction state via indicative of an effective roller radius can be used alone as a means of determining compaction state in real time, or can be leveraged and combined with other independent means of monitoring the compaction state to a symbiotic affect in more accurately determining compaction state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.