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Abstract

In order to address the degradation issues faced by asphalt mixtures in airport runways and highway pavement,particularly focusing on thermal stability and thermal corrosion under high-temperature conditions,this paper investigated the impact of phase change materials (PCMs ) on the thermal corrosion resistance of asphalt.Three types of PCMs were utilized to jointly modify SBS-modified asphalt,and a series of tests were conducted to systematically analyze the performance of the modified asphalt,including thermogravimetric-differential scanning calorimetry (TG-DSC ) analysis,heat storage and release performance evaluation,laboratory thermal corrosion simulation of asphalt,three-index testing,and dynamic shear rheometer (DSR ) testing.The results indicate that PCMs can effectively regulate asphalt temperature and significantly mitigate the degradation of asphalt properties during thermal corrosion.Specifically,PCM A exhibits superior thermal stability and temperature regulation performance under high-temperature conditions,whereas PCM C is unsuitable for asphalt modification due to its inferior thermal stability.Additionally,the inclusion of PCMs improves the microstructure of asphalt,enhancing intermolecular interactions and deformation resistance and improving overall asphalt performance.This study provides a theoretical foundation for asphalt modification and thermal corrosion protection in airport pavement,demonstrating the efficacy of PCMs in enhancing asphalt pavement performance and extending service life,which holds significant implications for the sustainable development of the transportation sector.

Publication Date

12-24-2025

DOI

10.14048/j.issn.1671-2579.2025.06.008

First Page

67

Last Page

76

Submission Date

December 2025

Reference

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