Device and method for indoor research on anti-skid performance decay rule of pavement materials

Abstract

The invention relates to a device and a method for indoor research on the anti-skid performance decay law of pavement materials, the device comprises a test box body, a box door is arranged on the surface of the test box body, a test loop is arranged in the test box body, an annular guide rail is arranged in the annular channel of the test loop in a matched manner, and a test piece is arranged on the test loop. An abrasion assembly used for polishing the test piece and an anti-sliding monitoring assembly used for testing the anti-sliding performance change of the test piece are installed on the annular guide rail, and the anti-sliding monitoring assembly is communicated with a central computer through a connecting line; the device further comprises a driving device which is attached to the inner side of the annular guide rail and provides power for the abrasion assembly to slide on the annular guide rail; accelerated abrasion of the pavement material can be simply, conveniently and efficiently achieved under the indoor condition, and the accuracy and scientificity of a test result are improved; and the anti-skid performance decay process of the test sample can be researched, and the provided anti-skid performance decay evaluation index can better serve the pavement design and performance evaluation work.

Description

technical field [0001] The invention relates to a device and method for indoor research on the decay law of the anti-skid performance of pavement materials, which belongs to the detection and evaluation of the anti-skid performance of pavement. Background technique [0002] With the rapid development of expressways in our country, people pay more and more attention to traffic safety issues, and the anti-skid performance of pavement is one of the key factors affecting traffic safety. The anti-skid performance of the pavement surface is inseparable from the anti-abrasion performance of the aggregates and mixtures used in the surface layer. Under the action of long-term driving, the pavement surface aggregates gradually become smoother, the pavement structure is denser, and the pavement anti-skid ability gradually Decay occurs. Defects in the anti-skid performance of the road surface will cause the vehicle to slip on the road surface or the emergency braking distance is too lo...

AI Technical Summary

Problems solved by technology

[0005] In summary, the traditional indoor anti-skid performance test and simulation device can no longer meet the technical needs of the current pavement design and maintenance decision-making. It is necessary to develop a new indoor simulation test device for pavement anti-skid performance in combination with actual needs, and to study reasonable and reliable accelerated polishing. method, improve the efficiency of anti-skid performance testing and the accuracy of test results, improve the scientific, efficient and effective simulation and evaluation of long-term anti-skid performance decay of pavement materials, and better serve pavement design and performance evaluation.

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