Test instrument and method for evaluating upheaval risk of bituminous pavement

A technology for testing instruments and asphalt pavements, which is applied in the direction of instruments, scientific instruments, measuring devices, etc., can solve the problems of lack of test methods, etc., and achieve the effects of simple parameter adjustment, easy installation and operation, and reasonable design

Active Publication Date: 2017-01-11
SHANXI PROVINCIAL RES INST OF COMM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still no well-integrated indoor test equipment for evaluating the risk of asphalt pavement wrapping in the pavement self-healing technology, and there is a lack of corresponding test methods

Method used

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  • Test instrument and method for evaluating upheaval risk of bituminous pavement
  • Test instrument and method for evaluating upheaval risk of bituminous pavement
  • Test instrument and method for evaluating upheaval risk of bituminous pavement

Examples

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Effect test

Embodiment 1

[0029] A test instrument for evaluating the risk of contracting asphalt pavement, 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 alternator 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 for laser transmitter and laser receiver, laser transmitter and laser receiver. control system 9 and laser signal processor 18; the environment box 24 is provided with an electromagnetic emission device 1 at the top, rails 12 are provided on both side walls, and a test mold 11 for holding a test piece is provided at the bottom; the two ends of the electromagnetic emission device 1 The two side walls of the environmental box 24 are connected horizontally through two telescopic conductive connecting rods 2, which...

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Abstract

The invention relates to a test instrument and method for evaluating the upheaval risk of a bituminous pavement. The test instrument comprises a left side and a right side. An environment box is arranged on the left side, and a control box is arranged on the right side. An alternating current generator is arranged below the control box. A wind-heat temperature control device and a connecting rod control device are sequentially arranged below the left side of the alternating current generator downwards, and a rail running device, a control system and a laser signal processor are sequentially arranged below the right side of the alternating current generator downwards. An electromagnetic emission device is arranged on the top in the environment box, rails are arranged on the two side walls, and a test mold for containing a sample is arranged at the bottom. The two rails are provided with scale marks, one rail is connected with a laser emitter, and the other rail is connected with a laser receiver. Four temperature sensors are arranged on the two sides of the two rails in total. An infrared thermal imager is arranged below the temperature sensor D and connected with the inner side wall of the environment box through an angle adjusting device. Compared with the prior art, the test instrument and method are easy and convenient to operate and rapid in measurement, and the induction heating process is easy to control.

Description

technical field [0001] The invention belongs to the technical field of indoor testing of asphalt mixtures, and in particular relates to a test instrument and a test method for evaluating the risk of contracting asphalt pavement. 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, such a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/00
CPCG01N25/00
Inventor 沈佳尹志钢张勃蓬张利张磊
Owner SHANXI PROVINCIAL RES INST OF COMM
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