Device and method for testing surface abrasion of pavement material

Abstract

The invention relates to a device and a method for testing surface abrasion of a pavement material. The device comprises a control box, an abrasion test device, a grounding pressure data acquisition device, a velocity data acquisition device and a control device, wherein the control box comprises a box body, a box door and a control panel; the abrasion test device comprises a counter-force frame, a loading device, a transmission shaft, a synchronous belt pulley, a motor, an air compressor and a pneumatic cylinder; the grounding pressure data acquisition device comprises a pressure sensor and an area sensor; the area sensor is connected with the control device through a control line; the velocity data acquisition device comprises a reflective sticker and a counter; and the control device is respectively connected with the abrasion test device, the grounding pressure data acquisition device and the velocity data acquisition device. The device provided by the invention has the advantages of high automation degree and high operability by adopting double-wheel ring loading mode, and has good pressure stabilizing effect by adopting the pneumatic cylinder to apply vertical loads to the pavement material. The device not only can be used for simulation experiment indoors, but also can be applied to actual pavements.

Description

technical field [0001] The invention relates to the technical field of material testing, in particular to a device and method for testing the surface wear of pavement materials. Background technique [0002] In the existing technology, there are many types of asphalt pavement maintenance technologies, such as ultra-thin wear layer technology, gravel sealing technology, micro-surfacing technology, etc. These technologies are based on a certain degree of damage to the pavement surface. The overlay or sealing layer serves the purpose of restoring the function of the pavement surface. The key factors affecting the application of technology are the bonding effect between the overlay material and the original pavement, whether it can withstand vehicle loads and environmental factors such as rain, wind, sunlight, and temperature, and whether it can maintain co-deformation with the original pavement without peeling off and other diseases. [0003] The existing indoor test method fo...

AI Technical Summary

Problems solved by technology

The above corresponding wear equipment can simulate the wear of the road surface to a certain extent, but the loading speed is greatly limited, and it cannot fully simulate the wear loss of the material when the vehicle is running at high speed.

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