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Asphalt mixed material road face abrasion simulator and test method thereof

A technology of asphalt mixture and test method, which is applied in the direction of testing wear resistance, etc., to achieve the effect of simple structure, convenient use and flexible testing

Inactive Publication Date: 2009-12-30
TONGJI UNIV
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  • Abstract
  • Description
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Problems solved by technology

[0011] The purpose of the present invention is to provide an asphalt mixture pavement wear simulator and its test method, which can comprehensively evaluate the tire wear resistance of asphalt mixture , extended the content of the evaluation, and realized the automatic control of the test process

Method used

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  • Asphalt mixed material road face abrasion simulator and test method thereof
  • Asphalt mixed material road face abrasion simulator and test method thereof

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0030] The asphalt mixture pavement wear simulator of the present invention is jointly formed by support 1, motor 2, weight 3, nozzle 4, tire 5, controller 7, as figure 1 As shown, its specific structure and assembly relationship are as follows:

[0031] The bracket 1 is an I-shaped steel beam that can bear 300KN tension and pressure. At both ends of the bracket 1, tires 5 are assembled on the bracket 1 according to the existing method of assembling tires for electric vehicles, and the motor 2 is assembled under the bracket 1. , the bracket 1 is controlled by the motor 2 and can rotate on a plane at a certain speed. When the bracket 1 is connected with the motor 2, it only bears force in the horizontal direction and can slide freely in the vertical direction. The support 1 is also provided with a device capable of placing a weight 3 . The we...

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Abstract

An asphalt mixed material road face abrasion simulator comprises a bracket, a motor, a tire and a controller. The two ends of the bracket is assembled with the tire, the motor is arranged right below the bracket, the controller is connected with the motor to control the same to operate, besides the bracket can be provided with a gravity applying system to simulate vehicle load, and the exterior side of the tire is provided with a spraying system to simulate raining. The test method of the asphalt mixed material road face abrasion simulator is implemented by making asphalt mixed material into a track plate to place the same below the tire and the place where the tire passes when rotating, applying force on the bracket or spraying water on the track plate selectively, controlling the running of the motor by the controller, and driving the tire to rotate on the track plate as the simulator bracket rotates with the motor; and testing the fraction coefficient of the asphalt mixed material at the position acted by the tire on the track plate through a pendulous fraction coefficient tester. The invention realizes the abrasion performance test of the asphalt mixed material road face with simple structure and convenient operation.

Description

technical field [0001] The invention belongs to road engineering, and relates to a road tester, in particular to an asphalt mixture road wear simulator. Background technique [0002] In the current road design specification, only the cement concrete pavement has the wear resistance test method, but there is no relevant provision in the specification of the asphalt concrete pavement, which is the main pavement form of the road at present. Test method for the determination of the coefficient of friction of built pavements only. [0003] Regarding the wear resistance test of cement concrete, there are relatively mature methods at home and abroad. In the ATSMC 77-89a of the United States, there are mainly three methods: the turntable type, the cutting wheel type and the ball type. my country Academy of Building Materials Science refers to the principle of ATSM C 944-95 in the United States. A new type of abrasion testing machine for cement concrete and a test method for abrasi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56
Inventor 张宏超王健郭仪南路贺炜冯永艳吴迪王嘉骏
Owner TONGJI UNIV
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