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公开(公告)号：US11549225B2
公开(公告)日：2023-01-10
申请号：US16861975
申请日：2020-04-29
Inventor： Guoping Qian , Huanan Yu , Changyun Shi , Xiangbing Gong , Xi Li , Jun Cai , Wenchao Wu
Abstract: A device is for detecting compaction and shear strength characteristics of an asphalt mixture during construction compaction. The device includes a fixed frame and a detection system. The detection system includes a display, a control panel, a test claw, an electric motor, a lift switch, a torque sensor and a temperature sensor. The control panel includes a power switch for controlling the electric motor and a speed regulator for controlling a rotation speed of the test claw. An output end of the electric motor is connected to an input end of the torque sensor, and an output end of the torque sensor is connected to an input end of the test claw. An output end of the test claw is provided with a claw-shaped blade. The claw-shaped blade is provided therein with the temperature sensor.
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公开(公告)号：US11221286B2
公开(公告)日：2022-01-11
申请号：US16880436
申请日：2020-05-21
Inventor： Guoping Qian , Huanan Yu , Changyun Shi , Xiangbing Gong , Xi Li , Jun Cai , Wenchao Wu
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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公开(公告)号：US20210087759A1
公开(公告)日：2021-03-25
申请号：US16861975
申请日：2020-04-29
Inventor： Guoping Qian , Huanan Yu , Changyun Shi , Xiangbing Gong , Xi Li , Jun Cai , Wenchao Wu
Abstract: A device is for detecting compaction and shear strength characteristics of an asphalt mixture during construction compaction. The device includes a fixed frame and a detection system. The detection system includes a display, a control panel, a test claw, an electric motor, a lift switch, a torque sensor and a temperature sensor. The control panel includes a power switch for controlling the electric motor and a speed regulator for controlling a rotation speed of the test claw. An output end of the electric motor is connected to an input end of the torque sensor, and an output end of the torque sensor is connected to an input end of the test claw. An output end of the test claw is provided with a claw-shaped blade. The claw-shaped blade is provided therein with the temperature sensor.
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