中国塑料2024，Vol.38Issue(5)：100-106,7.DOI:10.19491/j.issn.1001-9278.2024.05.018
废油/树脂/己二酸二辛酯复合再生剂制备及温拌剂对沥青拌合老化保护效果评价
Preparation of waste oil/resin/dioctyl adipate composite regenerant and evaluation of protective effect of warm mixing agent on asphalt mixing aging
摘要
Abstract
To verify the applicability of waste oil for the recovery of asphalt aging performance,a composite waste oil re-generation agent was prepared by means of a response surface method using waste oil,C9 petroleum resin,and dioctyl adipate as raw materials.To avoid the volatilization and aging of lightweight components during the mixing process of re-cycled asphalt,a warm mixing agent was introduced to reduce the mixing temperature and obtain performance protection of recycled asphalt.At the same time,the regeneration effect of the recycled agent on the aged asphalt and the protective effectiveness of the warm mixed agent were investigated.The results indicated that the defects of poor low-temperature ductility of aged asphalt were recovered.The recycled asphalt exhibited a better resistance to high-temperature deforma-tion than base asphalt.After warm mixing,there were more viscous components in the recycled asphalt.This resulted in superior low-temperature rheological performance.The regenerant supplemented the aromatic compounds of the aged as-phalt effectively.The small molecular oil substances in the warm mixed recycled asphalt were well protected,and the generation of large molecular matter groups during the secondary aging was controlled.关键词
道路工程/再生沥青/温拌剂/二次老化/性能损失Key words
road engineering/recycled asphalt/warm mixing agent/secondary aging/performance loss分类
化学化工引用本文复制引用
孙吉书,彭俊博,张民,郭艳芳..废油/树脂/己二酸二辛酯复合再生剂制备及温拌剂对沥青拌合老化保护效果评价[J].中国塑料,2024,38(5):100-106,7.基金项目
天津市交通运输科技发展计划项目(2023-36) （2023-36）
