Cement concrete pavement abrasion experiment device

Abstract

The invention discloses a cement concrete pavement abrasion experiment device which comprises a closed experiment cavity, a loading unit for providing loading force, a tire for simulating the action of a pavement tire and a power unit for driving the loading unit to rotate. A connecting piece used for being connected with a pavement test piece to be tested is arranged on a side wall in the experiment cavity, and the whole connecting piece is of an annular structure. The contact surface of the pavement test piece to be tested and the loading unit is an arc-shaped surface. The loading unit is incontact with a side surface of the pavement test piece to be tested; the loading unit comprises the tire used for simulating the action of the pavement tire, a connecting rod used for connecting thetire and a telescopic rod, and the loading and unloading of the tire to the pavement test piece to be tested are realized through stretching and retracting of the telescopic rod, and a fixed frame isconnected with an output end of the power unit. The loading device provided by the invention adopts an arc side surface loading mode, and a loading mode of a real automobile tire effect can be simulated to the greatest extent.

Description

technical field [0001] The invention belongs to the technical field of cement concrete pavement performance testing, and in particular relates to a cement concrete pavement wear test device. Background technique [0002] At present, the research on the anti-skid performance of cement concrete pavement mainly uses two research methods, the simulation of full-scale equipment on the pavement and the simulation of small-scale experimental equipment in the laboratory. The research method of full-scale equipment on the pavement needs to be carried out on the real cement concrete pavement, and the equipment is bulky and expensive. This creates a great limitation on the use of this method in the laboratory. The exploration of the anti-skid performance of cement concrete pavement in the laboratory requires special small-scale experimental equipment in the laboratory for simulation. However, there has not been a mature, reliable and standardized small-scale experimental equipment in...

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Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the present invention provides a cement concrete pavement wear experiment device, which solves the problems of low tire wear speed, small loading force, excessive inertia of loading parts, and slippage of the tire road surface in the existing experimental equipment in the laboratory. Friction instead of rolling friction, excessive torsion in the wear process of tires and cement concrete pavement, etc.

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