A test device for testing the shear strength of ice and asphalt pavement by centrifugal force

Abstract

A test device for testing the shear strength of ice and asphalt pavement by centrifugal force, comprising a box body and a centrifugal bucket arranged on it, and the two are connected through a ventilation isolation net and an electric fan arranged on the bottom plate of the centrifugal bucket; wherein A power transmission shaft base, an engine and a refrigeration device are arranged in the box. The power transmission shaft base is located at the center of the bottom plate in the box. One end of the power transmission shaft is movably connected with the power transmission shaft base, and the other end passes through the bottom plate of the centrifugal bucket and It is connected with the center of the centrifugal rod arranged in the centrifuge barrel; one end of the centrifugal rod is provided with a shear-resistant specimen, and the other end is provided with a counterweight for keeping the centrifugal rod in balance; the power transmission shaft is provided with a power transmission shaft Gear, the power output shaft of the engine is externally meshed with the power transmission shaft gear through the engine gear; a plurality of vibration sensors connected to the computer are evenly arranged on the outer wall of the centrifugal bucket. The present invention is used to determine the shear strength between pavement and ice.

Description

technical field [0001] The invention relates to a test device, in particular to a test device for testing the shear strength of ice and asphalt pavement by using centrifugal force. Background technique [0002] Snow accumulation and icing on roads have serious adverse effects on road smoothness and driving safety, resulting in great loss of life and economic property. This is because the snow and ice on the road greatly reduce the adhesion coefficient of the road, greatly weaken the traffic capacity of the road, and significantly lengthen the skid braking distance of the car, and even cause the brake to fail and the direction to lose control, which is very easy to directly or indirectly cause traffic accidents . [0003] In recent years, the research progress of snow melting and ice suppression pavement in various countries has been changing with each passing day. A variety of snow and ice removal materials and technologies have been developed, such as simple passive manual...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a test equipment for testing the shear strength of ice and asphalt pavement by centrifugal force, which is used for quantitative simulation and measurement of the shear strength between ice and pavement, thereby solving the problem of the shear strength of pavement materials. In order to solve the problem of evaluating the difficulty of road surface deicing and snow removal in engineering practice

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