山东建筑大学学报2026，Vol.41Issue(2)：86-94,9.DOI:10.12077/sdjz.2026.02.010
基于傅里叶变换红外光谱和化学计量学的沥青老化规律
Asphalt aging rules based on ATR-FTIR and chemometrics analysis
摘要
Abstract
To study the evolution of chemical structures in asphalt from different crude oil sources during the aging process and establishing a rapid identification model,based on Fourier Transform Infrared(FTIR)Spectroscopy combined with chemometrics analysis,this study examined 30 samples from five types of asphalt before and after aging.Similarity analysis,principal component Analysis(PCA),and hierarchical cluster analysis(HCA),and partial least squares discriminant analysis(PLS-DA)were employed to characterize the chemical changes induced by aging.The results show that the similarity of asphalt samples before and after aging is high,and there are differences in the correlation coefficient range of asphalt samples from different oil sources.Aging leads to the formation of carbonyl index and sulfoxide indices increase with the deepening of aging.Samples of the same asphalt and those from the same oil source remain within the same cluster with small spatial distances before and after aging,whereas samples from different oil sources show significant separation.The established PLS-DA model effectively distinguishes function can be used to distinguishes asphalts from different oil sources with an accuracy of 100%,demonstrating its reliability for rapid identification and classification of asphalt materials.关键词
道路工程/油源鉴别模型/化学计量学/沥青老化Key words
road engineering/oil source identification model/chemometrics/asphalt aging分类
交通工程引用本文复制引用
孟伟坤,徐海佼,于悦,武文鑫,赵品晖..基于傅里叶变换红外光谱和化学计量学的沥青老化规律[J].山东建筑大学学报,2026,41(2):86-94,9.基金项目
国家自然科学基金项目(51608511) （51608511）
