摘要
通过车辙因子、蠕变劲度、蠕变斜率、G-R、T_(δ=45°)和△Tc等流变指标对比了两种沥青再生剂的质量差异,研究了短期老化和长期老化对回收沥青及再生沥青的影响。研究结果表明:车辙因子、蠕变劲度、蠕变斜率、G-R、T_(δ=45°)和△Tc等流变指标可用于评价沥青再生剂,且不同流变指标试验结果均表明沥青再生剂B的效果优于沥青再生剂A;老化作用,尤其是长期老化作用,对再生沥青的影响更为显著。
In this paper,a series of rheological indexes were added to the rejuvenator evaluation work based on the specification to support the rejuanator selection in engineering.The indexes included rutting indee,ceep stitnes,ceep slope,G-R,T_(δ=45°) and △Tc.Then,G-R was used to evaluate long term pr-formanca of the rejuvenated asphait with long term and short term aging.The research results showed that:the indexes used in this paper could be adopted to evalule rejuvenaor with the same trend,showing that tejuva-ndtor 2 was more excellent than rejuvenaor A.The rejuandted asphalt was esier io be influenced by dging,especially by tong term aging,compaed with recycled asphalt.
作者
徐衍亮
吕正龙
XU Yanliang;LV Zhenglong(Nanjing Highway Development Center,Nanjing 210014;JSTI GROUP,Nanjing 211112;National Engineering Research Center of Advanced Road Materials,Nanjing 211212)
出处
《石油沥青》
2023年第1期7-12,共6页
Petroleum Asphalt
关键词
流变指标
沥青再生剂
评价
老化
长期性能
rheolooicot Indee
asphalt tejuvenator
evaluation
dging
long-term performance
