东南大学学报（英文版）2017，Vol.33Issue(1)：91-95,5.DOI:10.3969/j.issn.1003-7985.2017.01.015
100％人工老化沥青的温拌再生结合料性能评价与化学特性分析
Performance evaluation and chemical property analysis of RWMA binders with 100 ％ artificial reclaimed asphalt
摘要
Abstract
The performance evaluation and chemical property analysis of the recycled warm mix asphalt (RWMA) binders containing 100％ artificial reclaimed asphalt (RA) are presented,and the combined effects of different percentages of the rejuvenator and warm mix additive (WMA) additives on RWMA binders are analyzed through laboratory tests.Three types of WMA additives and one commercial rejuvenator named GST were selected to restore the artificial RA.The laboratory performance tests including the penetration test,softening test and rotary viscosity (RV) test were carried out.In addition,the Fourier transform infrared spectroscopy (FTIR) test was performed to explore the chemical property of RWMA binders.The results of the performance tests indicate that the rejuvenator GST has the ability to restore the artificial RA;choosing the optimum content of WMA additives and rejuvenator is the key to restoring 100％ artificial RA,since the combined effects of them play an important role in determining the basic laboratory performance of RWMA binders.The FTIR tests show that the process of recycling mainly adjusts the chemical component of aged asphalt and no remarkable change is observed in the PTIR spectra of RWMA binders in terms of chemical functional groups with the introduction of WMA additives.关键词
人工老化沥青/温拌再生沥青/温拌添加剂/再生剂/性能试验/傅里叶转换红外光谱Key words
artificial reclaimed asphalt/recycled warm mix asphalt/WMA additives/rejuvenator/performance test/Fourier transform infrared spectroscopy分类
交通工程引用本文复制引用
陈静云,王维营,孙依人,刘佳音,许斌..100％人工老化沥青的温拌再生结合料性能评价与化学特性分析[J].东南大学学报（英文版）,2017,33(1):91-95,5.基金项目
The National Natural Science Foundation of China(No.50578031). （No.50578031）
