Testing device and testing method for measuring road surface friction attenuation rate of snow-melting agent under low-temperature environment

Abstract

The invention provides a testing device and testing method for measuring the road surface friction attenuation rate of a snow-melting agent under the low-temperature environment .The testing device is composed of a testing box and a road surface friction coefficient measuring device .The road surface friction attenuation rate of the snow-melting agent under the low-temperature environment is measured by building a road surface testing table and controlling the temperature in the testing box .The testing device is used in the testing method .The method includes the three steps of test preparation, measurement and result sorting .Testing results obtained through the testing device and the testing method are accurate, stable and reliable and can truly reflect changes of anti-slip performance of a road surface after the snow-melting agent is used, advantages are remarkable, and the preferential road snow-melting agent plays an important role in improving road driving safety and reducing traffic accidents.

Description

technical field [0001] The invention belongs to the technical field of snow melting and deicing for urban roads, airport roads, highways, etc., and specifically relates to a test that can quickly and accurately measure the road surface friction attenuation rate index that characterizes the influence of snow melting agents on the antiskid performance of road surfaces in low temperature environments Device and test method. Background technique [0002] Highways, urban roads and airport roads in most parts of my country will be affected by ice and snow in winter. The snow and ice on the road not only leads to traffic interruption, but also easily leads to traffic accidents, resulting in serious economic and loss of life and property. At present, the most widely used snow melting and deicing method in the world is to spread deicing agent. According to incomplete statistics, the world uses about 30 million tons of deicing agent every year, and the amount of deicing agent is stil...

AI Technical Summary

Problems solved by technology

On the basis of a large number of tests, the applicant analyzed the following defects in the above-mentioned test method: (1) The deicing agent is mainly used for snow melting and deicing on roads in winter, and the ambient temperature is low when used. temperature

(2) In the test operation using the pendulum friction coefficient measuring instrument, since the moment the pendulum falls must be caught by hand, the whole device will vibrate, and the reading accuracy is greatly affected by the operator. In addition, there are difficulties in pressure calibration, Disadvantages such as poor reproducibility of test results

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