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Friction coefficient tester of dynamic shear rheometer and using method of tester

A friction coefficient and testing device technology, applied in measurement devices, mechanical devices, instruments, etc., can solve problems such as the inability to reflect the friction coefficient of asphalt pavement, and the large test variability of pendulum instruments, and achieve stable and accurate test results.

Pending Publication Date: 2019-12-17
CHANGAN UNIV
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  • Claims
  • Application Information

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Problems solved by technology

At present, the pendulum instrument is often used to measure the friction coefficient of asphalt pavement, but the test variability of the pendulum instrument is large, and it only provides tests at low speeds, which cannot reflect the friction coefficient between the actual vehicle and the asphalt pavement when the vehicle is driving fast.

Method used

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  • Friction coefficient tester of dynamic shear rheometer and using method of tester
  • Friction coefficient tester of dynamic shear rheometer and using method of tester
  • Friction coefficient tester of dynamic shear rheometer and using method of tester

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Embodiment Construction

[0041] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0042] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] It should be noted that the terms "first" and "...

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Abstract

The invention discloses a friction coefficient tester of a dynamic shear rheometer. The tester comprises a dynamic shear rheometer body, an upper clamp and a lower clamp, the upper clamp comprises a connecting shaft, a rotating flat plate and a rubber sliding block, the connecting shaft is vertically arranged over the rotating flat plate, the lower end of the connecting shaft is fixedly connectedwith the rotating flat plate, the rubber sliding block is arranged under the rotating flat plate and fixedly connected with the rotating flat plate, the connecting shaft and a rotating main shaft arearranged in the same straight line, and the upper end of the connecting shaft is detachably connected with the lower end of the rotating main shaft. The invention further discloses a using method of the asphalt pavement friction coefficient tester of the dynamic shear rheometer. Via the device and method, the actual friction coefficient between a vehicle in fast driving and the asphalt pavement can be tested stably and accurately.

Description

technical field [0001] The invention relates to the technical field of road safety detection, in particular to a dynamic shear rheometer friction coefficient testing device and a using method. Background technique [0002] Before the road is formally paved, verifying the skid resistance of the proposed asphalt mixture is an important technical means to ensure road safety during use. Compared with paving test roads, indoor test pieces have the advantages of small size and easy molding. At present, the pendulum instrument is often used to measure the friction coefficient of asphalt pavement, but the test variability of the pendulum instrument is large, and it only provides the test at low speed, which cannot reflect the friction coefficient between the actual vehicle and the asphalt pavement when the vehicle is driving fast. [0003] Dynamic shear rheometer, an instrument used to determine the linear viscoelastic properties of aged or unaged asphalt (modified or unmodified as...

Claims

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Application Information

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IPC IPC(8): G01N19/02
CPCG01N19/02
Inventor 胡力群贠迪许松潘晓东
Owner CHANGAN UNIV
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