The rejuvenation effects of colza bio-oil on aged SBS modified bitumen: a multiscale performance study
Source abstract
Abstract
With the increasing demand for sustainable resources in the bitumen industry, developing materials that can recover aged bitumen has become a key direction of research. This study investigates the effects of colza oil-based bio-oil (CO), a renewable industrial by-product, as a rejuvenator on the mechanical properties, rheological behavior, and microstructure of aged SBS modified bitumen. CO reduces the viscosity and activation energy of aged bitumen, and enhances its low-temperature performance. Additionally, CO rejuvenated SBS modified bitumen is expected to exhibit elastic behavior at high-temperatures and CO prolongs the fatigue life of bitumen. The fatty acids in CO undergo substitution reactions with the alkyl chains in SBS modifiers, resulting in shorter alkyl chains and aliphatic structures, which improve the fluidity and durability of the material. This study verified the feasibility of CO as a rejuvenator and provided a new idea for the application of renewable materials in road engineering.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Asphalt Pavement Performance Evaluation · Infrastructure Maintenance and Monitoring · Transport Systems and Technology
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Hunan University
Hunan Yunzhong Recycling Technology Co., Ltd.
Funding
National Natural Science Foundation of China · Hunan Provincial Natural Science Foundation of China · Science and Technology Planning Project of Hunan Province · Transportation Science and Technology Development and Innovation Project of Hunan Province
References (31)
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