Test apparatus and test method for measuring asphalt pavement wrapping during induction heating

Abstract

The invention relates to a test instrument and a test method for measuring asphalt pavement upheaval during inductive heating. The test instrument comprises a left side and a right side, wherein an environmental cabinet is arranged on the left side; a control cabinet is arranged at the top of the right side; an alternating current generator is arranged below the control cabinet; a wind heat temperature control device and a telescopic conductive connecting rod control device are downwardly arranged below the left side of the alternating current generator in sequence; a rail running device, a control system and a laser signal processor are downwardly arranged below the right side of the alternating current generator in sequence; inside the environmental cabinet, an electromagnetic launching device is arranged at the top, rails are arranged on the two side walls, and a test mold for placing a test specimen is arranged at the bottom; both the two rails are provided with scales, one rail is connected with a laser transmitter and the other rail is connected with a laser receiver; altogether, four temperature sensors are arranged on both sides of the two rails; another temperature sensor is arranged on the surface of an asphalt mixture test specimen. Compared with the prior art, the test instrument and the test method have the advantages as follows: operation is simple and convenient, measurement is rapid, and the inductive heating process is easy to control.

Description

technical field

[0001] The invention belongs to the technical field of asphalt performance testing, and in particular relates to a test instrument and a test method for measuring wrapping of asphalt pavement during induction heating. Background technique

[0002] Asphalt concrete pavements can self-heal at room temperature, but at a very slow rate and require no cycling of traffic loads. When the binder in the asphalt mixture is exposed to high temperature during the intermittent period, the healing rate of the asphalt will increase, and asphalt healing will repair the cracks and looseness of the asphalt concrete pavement caused by low temperature, fatigue and base reflection, so it will improve the asphalt concrete pavement. service life, reduce pavement maintenance and repair, and bring economic and traffic benefits. Compared with repair measures such as sealants, asphalt concrete pavement self-healing technology will not bring negative effects on the repaired pavement, s...

Examples

Embodiment 1

[0028] A test instrument for measuring asphalt pavement wrapping during induction heating, the test instrument includes a left side and a right side, the left side is an environmental box 24, the top of the right side is a control box 22; the bottom of the control box 22 is an AC box Generator 17; from the bottom left of the alternator 17, there are wind-heat temperature control device 19 and connecting rod control device 20, and from the bottom right, there are track running devices 8 and laser transmitters for laser transmitter and laser receiver. Control system 9 and laser signal processor 18 with laser receiver; Environmental box 24 is provided with electromagnetic emission device 1 on the top, both side walls are provided with track 12, and the bottom is provided with test mold 11 that holds test piece; Electromagnetic emission device The two ends of 1 are horizontally connected to the two side walls of the environmental box 24 through two retractable conductive connecting...

technical field

[0001] The invention belongs to the technical field of asphalt performance testing, and in particular relates to a test instrument and a test method for measuring wrapping of asphalt pavement during induction heating. Background technique

[0002] Asphalt concrete pavements can self-heal at room temperature, but at a very slow rate and require no cycling of traffic loads. When the binder in the asphalt mixture is exposed to high temperature during the intermittent period, the healing rate of the asphalt will increase, and asphalt healing will repair the cracks and looseness of the asphalt concrete pavement caused by low temperature, fatigue and base reflection, so it will improve the asphalt concrete pavement. service life, reduce pavement maintenance and repair, and bring economic and traffic benefits. Compared with repair measures such as sealants, asphalt concrete pavement self-healing technology will not bring negative effects on the repaired pavement, s...

Examples

Embodiment 1

[0028] A test instrument for measuring asphalt pavement wrapping during induction heating, the test instrument includes a left side and a right side, the left side is an environmental box 24, the top of the right side is a control box 22; the bottom of the control box 22 is an AC box Generator 17; from the bottom left of the alternator 17, there are wind-heat temperature control device 19 and connecting rod control device 20, and from the bottom right, there are track running devices 8 and laser transmitters for laser transmitter and laser receiver. Control system 9 and laser signal processor 18 with laser receiver; Environmental box 24 is provided with electromagnetic emission device 1 on the top, both side walls are provided with track 12, and the bottom is provided with test mold 11 that holds test piece; Electromagnetic emission device The two ends of 1 are horizontally connected to the two side walls of the environmental box 24 through two retractable conductive connecting...

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