Invention Grant
- Patent Title: Method for detecting compaction and shear strength characteristics of asphalt mixture during construction compaction
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Application No.: US16880436Application Date: 2020-05-21
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Publication No.: US11221286B2Publication Date: 2022-01-11
- Inventor: Guoping Qian , Huanan Yu , Changyun Shi , Xiangbing Gong , Xi Li , Jun Cai , Wenchao Wu
- Applicant: Changsha University of Science and Technology
- Applicant Address: CN Changsha
- Assignee: Changsha University of Science and Technology
- Current Assignee: Changsha University of Science and Technology
- Current Assignee Address: CN Changsha
- Agency: Brundidge & Stanger, P.C.
- Priority: CN201910884633.6 20190919
- Main IPC: G01N3/24
- IPC: G01N3/24 ; G01N3/06 ; G01N33/42 ; G01N3/22 ; E01C23/01

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.
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