中外公路2025，Vol.45Issue(6)：67-76,10.DOI:10.14048/j.issn.1671-2579.2025.06.008
相变材料改性沥青抗热蚀性能研究
Study on Thermal Corrosion Resistance of Asphalt Modified by Phase Change Materials
摘要
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.关键词
相变材料/改性沥青/热蚀/高温性能Key words
phase change material/modified asphalt/thermal corrosion/high-temperature performance分类
交通工程引用本文复制引用
LI Ping,WANG Zhijian,ZHENG Zhipeng,YI Chengxi,ZHOU Dexiang..相变材料改性沥青抗热蚀性能研究[J].中外公路,2025,45(6):67-76,10.基金项目
广西科技重大专项(编号:桂科AA23062054,桂科AA23062034,桂科AA18242032) （编号:桂科AA23062054,桂科AA23062034,桂科AA18242032）
