交通节能与环保2025，Vol.21Issue(3)：128-133,6.DOI:10.3969/j.issn.1673-6478.2025.03.027
道路生物沥青二次老化再生性能与机理研究
Study on Secondary Aging Regeneration Performance and Mechanism of Bio-Asphalt in Road Engineering
刘柏平 1向晶晶 1尘福涛 2胡新浪2
作者信息
- 1. 湖北交投京港澳高速公路改扩建项目管理有限公司,湖北 武汉 430104
- 2. 中路交建(北京)材料工程技术有限公司,北京 102199
- 折叠
摘要
Abstract
This study utilized waste cooking oil as a bio-oil regenerant for 70#base asphalt subjected to secondary cyclic aging-regeneration.Through penetration,softening point,ductility(10℃),Brookfield viscosity,dynamic shear rheology(DSR),and TLC-FID tests,the physical properties,rheological characteristics,and component changes of asphalt during the cyclic aging-regeneration process were systematically analyzed.Component analysis revealed that bio-oil primarily influenced aromatic fractions,but high-temperature oxidation of aromatics into heavy components limited the restoration of light fractions post-regeneration and reduced the anti-aging performance of regenerated asphalt348.While single regeneration effectively improves aged asphalt performance,long-term anti-aging performance must be prioritized to avoid increased maintenance costs.关键词
道路工程/二次老化/生物油/流变特性/组分分析Key words
road engineering/secondary aging/bio-oil/rheological properties/component analysis分类
交通工程引用本文复制引用
刘柏平,向晶晶,尘福涛,胡新浪..道路生物沥青二次老化再生性能与机理研究[J].交通节能与环保,2025,21(3):128-133,6.
