化工进展2025，Vol.44Issue(4)：2068-2080,13.DOI:10.16085/j.issn.1000-6613.2024-0526
沥青再生剂扩散行为表征方法研究进展
Research progress on characterization methods of diffusion behavior of asphalt rejuvenators
摘要
Abstract
Interface diffusion behavior between asphalt rejuvenators and aged asphalt is the key factor affecting hot recycling efficiency,process level and service performance of reclaimed asphalt pavement.Simulation methods of diffusion state of rejuvenators into aged asphalt were systematically reviewed including soaking method,layered extraction technology,surface wettability method,tracer method and molecular dynamics simulation method.The advantages and disadvantages of existing research methods were comparatively analyzed,on the basis of which,characterization methods and evaluation parameters of different time history diffusion states were summarized.The characteristics and applicability of various evaluation methods were discussed.The future research direction of characterization methods of diffusion behavior of asphalt rejuvenators was prospected.Research results showed that diffusion samples prepared based on the surface wettability method had unique methods and indicators for characterizing diffusion states,which were suitable for evaluating interface characteristics and instant diffusion rate of rejuvenators wetting aging asphalt.Tracer technologies could capture the slice blending status of diffusion samples.Diffusion characterization methods of soaking method and layered extraction technology were more diversified.The combination of molecular dynamics simulation and diffusion test considering thermodynamic parameters was the main pathway to study diffusion behavior and driving force mechanism of asphalt rejuvenators.In the future,the research on the lateral diffusion behavior of asphalt rejuvenators along the asphalt film surface should be strengthened,and a variety of contact modes between rejuvenators and aged asphalt should be considered.The diffusion kinetic model considering time-temperature attenuation effect needed to be established,which provided a theoretical basis and reference for scientifically determining process parameters of hot recycled asphalt pavement.关键词
再生沥青路面/再生剂/扩散行为/界面/表征方法/评价参数Key words
recycled asphalt pavement/rejuvenators/diffusion behavior/interface/characterization method/evaluation parameters分类
交通运输引用本文复制引用
岳磊,栗培龙,丁湛,夏雷,安琳玉..沥青再生剂扩散行为表征方法研究进展[J].化工进展,2025,44(4):2068-2080,13.基金项目
国家自然科学基金(52378432) （52378432）
陕西省重点研发项目(2022SF-169). （2022SF-169）
