生物油基再生剂对老化沥青流变性能恢复规律研究

doi:10.11896/cldb.24110036

材料导报

2025, Vol. 39

Issue (22): 24110036-8 https://doi.org/10.11896/cldb.24110036

无机非金属及其复合材料

生物油基再生剂对老化沥青流变性能恢复规律研究

张万国¹, 万贵稳^2,*, 乔元辉¹, 张吉哲^3,*, 熊远顺¹

1 中铁十四局集团有限公司,济南 250101
2 山东建筑大学材料科学与工程学院,济南 250101
3 山东大学齐鲁交通学院,济南 250100

Study on the Recovery Law of Rheological Properties of Aged Asphalt with Bio-Oil-based Recycling Agents

ZHANG Wanguo¹, WAN Guiwen^2,*, QIAO Yuanhui¹, ZHANG Jizhe^3,*, XIONG Yuanshun¹

1 China Railway 14th Bureau Group Co., Ltd., Jinan 250101, China
2 School of Materials Science and Engineering, Shandong Jianzhu University, Jinan 250101, China
3 School of Qilu Transportation, Shandong University, Jinan 250100, China

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摘要针对生物油来源广泛、性能不稳定且不同生物油对老化沥青流变性能影响及作用机理尚不明晰等问题,将蓖麻油(CO)、地沟油(GO)、大豆油(SO)三种不同来源的生物油作为再生剂基础组分,并添加增塑剂、渗透剂、润湿剂制备生物油基沥青再生剂,对比分析最佳掺量下再生沥青流变性能恢复规律及其作用机理。结果表明:三种再生剂的红外光谱特征峰基本一致,地沟油基再生剂(GOR)中芳香族含量高于蓖麻油基再生剂(COR)和大豆油基再生剂(SOR),酯和酚的含量低于COR和SOR。再生沥青中再生剂和沥青是物理共混,未发生化学反应。地沟油基再生沥青(GORA)的温度和频率敏感性均高于蓖麻油基再生沥青(CORA)和大豆油基再生沥青(SORA),SORA低温性能优于CORA和GORA。再生沥青复数模量仍高于基质沥青,相位角小于基质沥青,SOR与老化沥青的相容性低于COR和GOR。再生剂可使老化沥青蠕变劲度模量(S)减小,蠕变速率(m)增大,有效提高老化沥青的柔性变形能力,三种再生沥青低温连续分级温度高于基质沥青,CORA低温连续分级温度高于GORA和SORA。总体而言,COR和GOR再生效果优于SOR。

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	张万国
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	熊远顺

关键词: 沥青生物油再生剂流变性能微观性能

Abstract: Considering the wide availability yet inconsistent performance of bio-oils, along with the unclear mechanisms by which different bio-oils inf-luence the rheological properties of aged asphalt, utilized castor oil (CO), gutter oil (GO), and soybean oil (SO) as base components for bio-oil-based rejuvenators. By incorporating plasticizers, penetrants, and wetting agents, tailored rejuvenators were developed. A comparative analysis was conducted to investigate the recovery behavior and underlying mechanisms of rheological properties in rejuvenated asphalt at optimal dosages. The results indicate that the infrared spectral characteristic peaks of the three rejuvenators are largely consistent. The aromatic content in the gutter oil-based rejuvenator (GOR) is higher than that in the castor oil-based rejuvenator (COR) and soybean oil-based rejuvenator (SOR), while the ester and phenol contents in GOR are lower than those in COR and SOR. The rejuvenator and asphalt show physical blending without chemical reactions occurring in the rejuvenated asphalt. The temperature and frequency sensitivities of gutter oil-based rejuvenated asphalt (GORA) are higher than those of castor oil-based rejuvenated asphalt (CORA) and soybean oil-based rejuvenated asphalt (SORA), while SORA demonstrates superior low-temperature performance compared to CORA and GORA. The complex modulus of the rejuvenated asphalt remains higher than that of the virgin asphalt, and the phase angle is lower than that of the virgin asphalt. The compatibility of SOR with aged asphalt is inferior to that of COR and GOR. The creep stiffness modulus (S) of the aged asphalt decreases, while the creep rate (m) increases with the addition of rejuvenators, thereby effectively enhancing the flexible deformation capacity of the aged asphalt. The low-temperature conti-nuous grading temperatures of the three rejuvenated asphalts are higher than that of the virgin asphalt, with CORA exhibiting a higher low-tempe-rature continuous grading temperature than GORA and SORA. Overall, COR and GOR demonstrate better rejuvenation effects compared to SOR.

Key words: asphalt bio-oil rejuvenator rheological property microscopic property

出版日期: 2025-11-25 发布日期: 2025-11-14

ZTFLH:

U414

基金资助: 国家自然科学基金(52478457)

通讯作者: *万贵稳,硕士,山东建筑大学材料科学与工程学院实验员。目前主要从事废旧沥青路面再生方面的工作。13964@sdjzu.edu.cn;张吉哲,博士,山东大学齐鲁交通学院副研究员,硕士研究生导师。目前主要从事沥青混合料细观力学、新型路面材料、废旧路面材料再生利用等方面的研究工作。jizhe.zhang@sdu.edu.cn

作者简介: 张万国,中铁十四局集团有限公司正高级工程师。目前主要从事岩土工程方面的研究工作。

引用本文:

张万国, 万贵稳, 乔元辉, 张吉哲, 熊远顺. 生物油基再生剂对老化沥青流变性能恢复规律研究[J]. 材料导报, 2025, 39(22): 24110036-8.
ZHANG Wanguo, WAN Guiwen, QIAO Yuanhui, ZHANG Jizhe, XIONG Yuanshun. Study on the Recovery Law of Rheological Properties of Aged Asphalt with Bio-Oil-based Recycling Agents. Materials Reports, 2025, 39(22): 24110036-8.

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https://www.mater-rep.com/CN/10.11896/cldb.24110036 或 https://www.mater-rep.com/CN/Y2025/V39/I22/24110036

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