Method for detecting compaction and shear strength characteristics of asphalt mixture during construction compaction
US11221286B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2020 |
| Grant date | Jan 11, 2022 |
| Priority date | — |
| Expiry date | Aug 8, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0256
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention discloses a method for detecting compaction and shear strength characteristics of an asphalt mixture during construction compaction. The method mainly includes the following steps: using a device for detecting compaction and shear strength characteristics of the asphalt mixture; pressing a test claw into the asphalt mixture during construction; rotating the test claw slowly and uniformly to measure an internal temperature and a shear characteristic of the mixture during paving and subsequent compaction; calculating a corresponding compaction detection index based on the shear characteristic; and monitoring and guiding the construction quality and construction process accordingly based on the real-time detection index. The present invention measures the compaction detection index of the asphalt mixture during compaction simply, quickly and accurately. The present invention uses the compaction detection index together with a degree of compaction for dual control of asphalt pavement compaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.