Rheological Properties Evaluation and System Fusion Behavior of Bio-based Resin Modified Asphalt Binders

被引：0
|
作者：
Jiang X. [1 ]
Ding Z. [2 ,3 ]
Sun C. [1 ]
Yue L. [1 ]
Li H. [1 ]
Li P. [1 ,4 ]
机构：
[1] School of Highway, Chang’an University, Xi’an
[2] School of Water and Environment, Chang’an University, Xi’an
[3] Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region, Ministry of Education, Chang’an University, Xi’an
[4] Key Laboratory of Road Structure and Material, Ministry of Transport, Chang’an University, Xi’an
来源：
Cailiao Daobao/Materials Reports | 2024年 / 38卷 / 02期
基金：
中国国家自然科学基金; 中央高校基本科研业务费专项资金资助;
关键词：
bio-asphalt binder; bio-based resin; crop straw; fusion behavior; phase structure; rheological property;
D O I：
10.11896/cldb.22040409
中图分类号：
学科分类号：
摘要：
Limited by the reserves and supply of petroleum resources,introducing biomass materials into petroleum asphalt binders has become a hot topic. In this study,three kinds of bio-based resins (i. e.,BPF,BPU and BPF-PU)were synthesized from wheat straw liquefaction products and used for the preparation of bio-asphalt binders. This work aims to investigate the effect of bio-based resins on the rheological properties of the neat asphalt binder and their interactions. Firstly,the effects of bio-based resins on viscoelastic properties and high-temperature rutting resistance of the asphalt binder were evaluated by the frequency scanning test and the multiple stress creep recovery test. Subsequently,the phase structure of resin-asphalt system was analyzed based on the rheological theory. Finally,the fusion behavior of resins and asphalt binders was explored by fluorescence microstructure and functional group distribution. The results indicate that the percentage elastic components in the neat asphalt binder can be increased by BPF and BPF-PU,leading to superior anti-rutting performance. However,BPU tends to enhance the viscous response of the neat asphalt binder. The resins can be dispersed into the neat asphalt binder and form a uniform and stable phase structure,which may be attributed to the formation of ether bonds(C-O-C)between the resin and the neat asphalt binder. This investigation contributes to provide new ideas for the value-added conversion of the crop straw and the development of bio-asphalt binders,while further research is needed in the comprehensive evaluation of the bio-asphalt binder performance. © 2024 Cailiao Daobaoshe/ Materials Review. All rights reserved.
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