A device and method for testing the bond fatigue performance of pavement filling materials

Abstract

A device and method for testing the bond fatigue performance of pavement grouting materials. The test equipment for the bond fatigue test includes a test device, a vibrating platform and a base, wherein the vibrating platform and the base are connected by four springs. Two motors are installed on the bottom surface of the vibrating platform, and the motors mesh with two eccentric shafts through gears, and the two eccentric shafts are respectively arranged in the horizontal and vertical directions. The bottom surface of the base is provided with a rubber layer to prevent the whole device from vibrating and sliding during operation. One of the two test pieces is fixed on the vibrating platform, and the other is fixed on the test end equipped with universal wheels at the bottom, which can move freely. Vibration is generated in the vertical and horizontal directions, and the cumulative vibration time, vibration level and interface damage level of the bonded interface damage are used to comprehensively and quantitatively evaluate the bond fatigue performance of the pavement joint filling material. The invention is used for testing the bonding fatigue performance of pavement joint filling materials.

Description

Technical field: [0001] The invention relates to a test device, in particular to a device and a method for testing the bonding fatigue performance of pavement joint filling materials. Background technique [0002] Cracks are one of the main diseases of asphalt pavement. The existence of cracks makes water on the road surface or other impurities enter the road base through the cracks, greatly reducing the overall strength and stability of the road, and causing more serious damage to the road. In the northern part of my country, the temperature changes rapidly, the temperature difference between day and night is large and the weather is cold, so the problem of cracks in asphalt pavement is particularly prominent. [0003] At present, the treatment methods for cracks at home and abroad are usually to repair the cracks with filling materials. Initially, hot base asphalt is used to fill the joints. However, because the performance of the base asphalt does not meet the requiremen...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a device and method for testing the bonding fatigue performance of pavement grouting materials, which is used to simulate and test the performance of pavement grouting materials, thereby solving the problem of testing the performance of pavement grouting materials In order to solve the problem of evaluating the quality of pavement filling materials in engineering practice

Images