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Comprehensive testing device for improving thermal physical environmental performance of heat-reflecting asphalt pavement

A technology for asphalt pavement and comprehensive testing, which is applied in the field of comprehensive testing devices and equipment for road engineering testing, to achieve the effects of simple testing and maintenance, good correlation, and simple principles

Inactive Publication Date: 2014-05-07
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, there is currently no test equipment that can measure the thermophysical environment of this pavement (reflection performance and the influence of coating on the pavement temperature field and the surrounding thermal environment).

Method used

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  • Comprehensive testing device for improving thermal physical environmental performance of heat-reflecting asphalt pavement
  • Comprehensive testing device for improving thermal physical environmental performance of heat-reflecting asphalt pavement
  • Comprehensive testing device for improving thermal physical environmental performance of heat-reflecting asphalt pavement

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Experimental program
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Embodiment Construction

[0018] refer to figure 1 , figure 2 , image 3 As shown in the figure: 1. Daylight simulation light source; 2. Environmental chamber; 3. Air temperature sensor probe; 4. Stage; 5. Digital recorder; 6. Daylight simulation light source intensity control button; 7. Temperature Sensor switch; 8. Environmental box temperature adjustment button; 9. Main power switch; 10. Rotating bracket; 11. Temperature controller; 12. Temperature collector; 13. Test piece; 14. Ventilation port (outlet); 15. Ventilation Mouth (air intake); 16, photoelectric sensor; 17, arc support arm; 18, jack.

[0019] The test device is equipped with a temperature control machine 11 at the lower right part of the environmental box 2. The temperature control machine 11 controls the temperature through the air temperature sensing probe 3 placed in the environmental box and the vents 14, 15 connected to the temperature control machine 11. The environment A sunlight simulation light source 1 is arranged at the u...

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Abstract

The invention discloses a comprehensive testing device for improving the thermal physical environmental performance of a heat-reflecting asphalt pavement. The device consists of an environmental control system, a data acquisition system, a test piece assembling system. According to the device, the acquisition of a structural layer temperature of the asphalt pavement under the action of solar thermal radiation can be realized, the temperature variation conditions of a pavement structure with a heat-reflecting coating and a pavement structure without the heat-reflecting coating are compared and the heat reflecting approach of the heat-reflecting asphalt pavement at different solar altitudes or angles can be measured so as to evaluate the influence of the heat-reflecting asphalt pavement on the surrounding environment. The device has the advantages of being simple in test and maintenance, convenient in data acquisition and the like.

Description

technical field [0001] The invention provides a comprehensive test device for improving the thermophysical environment performance of a heat-reflecting asphalt pavement, which belongs to road engineering test equipment. Background technique [0002] Due to the black color of the asphalt pavement, the pavement has a strong heat absorption capacity. A large amount of heat accumulates and accumulates, and the temperature of the pavement continues to rise. Under the action of external loads, it is easy to produce flow deformation and form ruts. The generation of rutting will destroy the original pavement structural strength and induce other diseases, which put forward higher requirements for the high temperature stability of asphalt pavement. On the other hand, because asphalt pavement can effectively store solar radiation, each asphalt road has become a "heating wire" for heating the city, baking the atmosphere and living environment around the city, and exacerbating the "heat ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/42
Inventor 郑木莲何利涛弥海晨程承胡苗
Owner CHANGAN UNIV
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