生物油基再生剂的研制及其对再生沥青混合料的性能影响

冯新军, 廖思乐, 段湖杰

交通运输研究 ›› 2025, Vol. 11 ›› Issue (3) : 71-83.

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交通运输研究 ›› 2025, Vol. 11 ›› Issue (3) : 71-83. DOI: 10.16503/j.cnki.2095-9931.2025.03.007
技术前沿

生物油基再生剂的研制及其对再生沥青混合料的性能影响

作者信息 +

Development of Bio-oil-based Regenerant and Its Effect on the Performance of Recycled Asphalt Mixture

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文章历史 +

摘要

为了研制更加环保且抗老化性能良好的生物油基再生剂,采用椰子油作为生物油基再生剂的基础油分,增塑剂DOP、增黏树脂C9、抗氧化剂PG作为再生剂的原材料。通过正交试验与极差分析,确定生物油基再生剂(SW)中各组分最佳比例。测试SW再生剂的黏度、闪点、薄膜烘箱老化前后质量变化及黏度比,通过针入度法测试SW再生剂的渗透性能,并与某商用再生剂(T)进行比较。通过车辙试验、浸水马歇尔试验、冻融劈裂试验、小梁弯曲试验和劈裂试验,对SW再生沥青混合料的高温稳定性、水稳定性、低温抗裂性、抗老化性能进行评价,并与原样沥青混合料和T再生沥青混合料作对比。结果表明:SW再生剂中各组分最佳比例为椰子油∶增塑剂∶增黏树脂∶抗氧化剂=1.00∶0.20∶0.03∶0.02;SW再生剂的黏度与闪点均满足规范,且抗老化性能与渗透性能优于T再生剂更为优良;SW再生沥青混合料的高温稳定性、水稳定性和低温抗裂性均满足规范要求,高温稳定性与原样沥青混合料相差不大,且低温抗裂性能、抗老化性能以及冻融循环后的水稳定性能均优于原样沥青混合料与T再生沥青混合料。

Abstract

To develop a more environmentally friendly bio-oil-based regenerant with superior anti-aging performance, coconut oil was selected as the base oil, and Plasticizer DOP, tackifying resin C9, and antioxidant PG were incorporated as raw materials for the regenerant. Through orthogonal test and range analysis, the optimal proportion of each component in bio-oil based regenerant (SW) was determined. The viscosity, flash point, mass change before and after aging in the film oven and viscosity ratio of SW regenerant were tested. The penetration performance of SW regenerant was tested by the needle penetration method, and compared with a commercial regenerant (T). Through rut test, immersion Marshall test, freeze-thaw split test, trabecular bending test and split test, the high temperature stability, water stability, low temperature crack resistance and aging resistance of SW recycled asphalt mixture were evaluated, and compared with the original asphalt mixture and T recycled asphalt mixture. The results show that the optimal proportion of each component in SW regenerant is coconut oil: plasticizer: tackifying resin: antioxidant=1.00∶0.20∶0.03∶0.02. The viscosity and flash point of SW regenerant meet the specifications, and the aging resistance and penetration performance are better than those of T regenerant. The high temperature stability, water stability and low temperature cracking resistance of SW recycled asphalt mixture all meet the requirements of the specification. The high temperature stability is not much different from that of the original asphalt mixture. The low temperature cracking resistance, aging resistance and water stability after freeze-thaw cycle are better than those of the original asphalt mixture and T recycled asphalt mixture.

关键词

路面材料 / 生物油基再生剂 / 再生沥青 / 沥青混合料 / 路用性能

Key words

pavement material / bio-oil-based regenerant / recycled asphalt / asphalt mixture / pavement performance

引用本文

导出引用
冯新军, 廖思乐, 段湖杰. 生物油基再生剂的研制及其对再生沥青混合料的性能影响[J]. 交通运输研究. 2025, 11(3): 71-83 https://doi.org/10.16503/j.cnki.2095-9931.2025.03.007
FENG Xinjun, LIAO Sile, DUAN Hujie. Development of Bio-oil-based Regenerant and Its Effect on the Performance of Recycled Asphalt Mixture[J]. Transport Research. 2025, 11(3): 71-83 https://doi.org/10.16503/j.cnki.2095-9931.2025.03.007
中图分类号: U414   

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基金

湖南省自然科学基金项目(2021JJ30709)
河南省交通运输学会科研项目(YJXHZD202401)

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