降低沥青路面温度的双向热诱导相变结构研究

doi:10.11896/cldb.21040242

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Abstract To reduce the temperature and rutting of asphalt pavement, a bidirectional heat-induced phase change structure (BHI-PCS) was designed through the combination of phase transition heat storage and heat induction. And a blank structure (BS), phase change structure (PCS) with only phase change added, and bidirectional heat-induced structure (BHIS) with only thermal conductive material added were set as the control group. Based on the ABAQUS finite element analysis, the internal heat change and rutting resistance of different structures were simulated, and the cooling effect was verified by the laboratory temperature test. The results show that compared with the control group, BHI-PCS has a more significant effect on reducing road temperature, with the maximum simulated temperature reduced by 4.1 ℃. The laboratory temperature test results are in good agreement with the simulation calculation results. At the same time, BHI-PCS has a strong ability to resist rutting, and the maximum rutting depth can be reduced by 46.5%. The proposed structure can provide reference for reducing the temperature of asphalt pavement in high-temperature areas and alleviating the rutting problem of pavement.

Key words： road engineering composite shaped phase change material (CS-PCM) asphalt pavement temperature heat induced finite element model rutting

Published: Online: 2023-07-10

CLC number:

U416.217

Fund:GUET Excellent Graduate Thesis Program (18YJPYSS35), Postdoctoral Science Foundation of China (2019M653314),Guangxi Science and Technology Fund (AD18281043), and National Natural Science Foundation of China (51968011, 51668012).

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	Articles by authors
	GONG Xing
	YING Hong
	LIANG Fengxin
	LIU Weidong
	XU Xiuquan

Cite this article:

GONG Xing,YING Hong,LIANG Fengxin, et al. Bidirectional Heat-induced Phase Change Structure of Asphalt Pavement for Reducing the Pavement Temperature[J]. Materials Reports, 2023, 37(13): 21040242-6.

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http://www.mater-rep.com/EN/10.11896/cldb.21040242 OR http://www.mater-rep.com/EN/Y2023/V37/I13/21040242

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