Asphalt pavement friction coefficient tester capable of simulating rainfall and testing method of asphalt pavement friction coefficient tester

Abstract

The invention relates to an asphalt pavement friction coefficient tester capable of simulating rainfall and a testing method of the asphalt pavement friction coefficient tester. The asphalt pavement friction coefficient tester comprises a rain box which is divided into a main equipment region and an auxiliary equipment region; the main equipment region is separated into an upper part and a lower part through a rain collection bottom plate and the lower part is a water collection box; a water distribution pipe with a nozzle is arranged at the top of a right part of the upper part; two clamping strips are arranged at the bottom of the right part of the upper part; a test mold is arranged between the two clamping strips; a portable pendulum tester is arranged on an upper surface of the test mold; a water storage bucket is arranged at the bottom of the left part; the bottom of the water storage bucket is connected to a water pump in the water collection box through a water inlet pipe; a water pump is arranged at the top of the water storage bucket and the water pump is connected to the water distribution pipe through a water conveying pipeline; the water conveying pipeline is further upwards provided with a tee joint, a flow meter and a solenoid valve in sequence; the tee joint is connected with a water returning pipe which is provided with an adjusting valve and is connected to the water storage bucket; the auxiliary equipment region is provided with a control box. The asphalt pavement friction coefficient tester has the characteristics of simple structure and simplicity and convenience for operation.

Description

technical field [0001] The invention belongs to the technical field of asphalt pavement performance testing, and in particular relates to a rainfall-simulating asphalt pavement friction coefficient tester and a testing method thereof. Background technique [0002] With the development of the economy, the grade of roads has been continuously improved, the traffic volume has increased, and the speed of vehicles has accelerated. The problem of anti-skid on asphalt pavement has become increasingly prominent. Especially in rainy days, the anti-skid performance of asphalt pavement is greatly reduced, which can easily cause vehicles to slip out of control, causing casualties. Major accidents such as property damage. In order to verify whether the antiskid performance of asphalt pavement can meet the requirements of use, we use a pendulum instrument to measure the friction coefficient of the pavement. However, during the test, the friction coefficient of asphalt pavement can only b...

AI Technical Summary

Problems solved by technology

However, in the test process, only the friction coefficient of asphalt pavement under non-rainy conditions can be tested, and it cannot reflect the friction coefficient of asphalt pavement under different rainfall intensities and surface runoff coefficients under rainy conditions.

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