Status of Infrared Thermal Imaging Test of Road Quality

The hidden diseases under the road surface and bridge deck pavement are intuitively detected and early prevented with thermal infrared imager. The basic working principle of infrared thermal imaging technology was briefly introduced in this paper. Besides, the research situation of infrared thermal imaging technology in detecting paving temperature and void disease was summarized. Finally, the results analysis, excitation mode of infrared thermal imaging technology in road engineering were prospected.