Indoor rotary wheel rut test machine for asphalt mixture

Abstract

An indoor rotary asphalt mixture rutting test machine, on the bottom plate of the test bench and in the environment box, there are installed a rotating shaft rotating shaft support, a rotating table pillar whose upper end is connected with the test bench panel, a motor frame with a speed regulating motor installed, The bearing support, the heating pipe, and the speed regulating motor are connected with the rotating shaft through the transmission mechanism. The lower end of the rotating shaft is arranged on the bearing support, the rotating shaft bearing is arranged between the rotating shaft and the bearing support, and the rotating beam is arranged at the upper end of the rotating shaft. , Bearing sleeves and bearings are arranged between the rotating beam and the rotating shaft, at least one rubber wheel support slider with a rubber wheel support inside is provided on the rotating beam, and a counterweight support with a counterweight is provided on the rubber wheel support , Rubber wheels are set at the lower end, limit columns are set on the test bench panel and at least 2 steel molds that can install asphalt mixture specimens are set, a backing plate is set between the steel molds, and a temperature controller is set outside the environmental chamber. It has the advantages of short test time and high efficiency, and can be used for anti-rutting test of asphalt mixture pavement.

Description

technical field [0001] The invention belongs to the technical field of paving and repairing machines, tools or auxiliary equipment for pavement of roads or other similar structures, and in particular relates to an indoor rotary asphalt mixture rutting testing machine. Background technique [0002] At present, asphalt mixture is mainly used for road pavement at all levels at home and abroad. Asphalt mixture is mainly composed of asphalt and aggregate. Asphalt mixture is an elastic, viscous and plastic material. When the rutting is serious, it will not only affect the comfort of driving, but also bring safety hazards to high-speed driving. Rutting is the main damage form of asphalt pavement at present. One, the highway department will spend a large amount of maintenance and repair funds for this every year. [0003] Asphalt content and aggregate ratio in asphalt mixture pavement are important factors affecting rutting. Under the same use environment and traffic volume, a reas...

AI Technical Summary

Problems solved by technology

The main disadvantage of this kind of asphalt mixture rutting test machine is that the rubber wheel reciprocates on the surface of the asphalt mixture test piece, which is different from the one-way rolling in actual driving.

In addition, due to the limitation of the size of the large disc, the reciprocating distance of the rubber wheel is limited. Usually, only one asphalt mixture specimen can be tested in one test, and the anti-rutting ability of an asphalt mixture specimen needs to be tested for a certain number of times. 1 hour, under normal circumstances, only about 6 to 7 specimens can be tested per day

Secondly, due to the difference in ambient temperature fluctuations of different test pieces during the measurement process, it affects the comparability of test results between different test pieces.

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