
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
Development of Bio-oil-based Regenerant and Its Effect on the Performance of Recycled Asphalt Mixture
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.
路面材料 / 生物油基再生剂 / 再生沥青 / 沥青混合料 / 路用性能
pavement material / bio-oil-based regenerant / recycled asphalt / asphalt mixture / pavement performance
[1] |
郭鹏, 谢凤章, 孟建玮, 等. 沥青再生过程中新-旧沥青界面混溶行为综述[J]. 材料导报, 2020, 34(13):13100-13108.
|
[2] |
王杰, 秦永春, 曾蔚, 等. 多次再生沥青混合料沥青组分迁移及其性能[J]. 建筑材料学报, 2020, 23(1):77-84.
|
[3] |
闫正和, 张启志. 生物油再生剂热再生老化SBS改性沥青及混合料性能研究[J]. 新型建筑材料2020, 47(3):83-87.
|
[4] |
侯芸, 董元帅, 李志豪, 等. 植物油再生SBS改性沥青混合料路用性能研究[J]. 重庆交通大学学报(自然科学版), 2021, 40(8):120-125.
|
[5] |
任文芳. 生物再生剂再生沥青流变性能研究[J]. 公路交通科技(应用技术版), 2020, 16(3):70-75.
|
[6] |
唐伯明, 曹芯芯, 朱洪洲, 等. 生物油再生沥青胶结料路用性能分析[J]. 中国公路学报, 2019, 32(4):207-214.
|
[7] |
|
[8] |
|
[9] |
|
[10] |
|
[11] |
|
[12] |
|
[13] |
|
[14] |
欧阳自强, 朱建勇, 袁泉, 等. 沥青再生剂性能研究与评价[J]. 中外公路, 2016(5):294-299.
|
[15] |
|
[16] |
梁庆, 郑云, 张关发, 等. 废机油再生SBS改性沥青性能及再生机理[J]. 科学技术与工程, 2023, 23(2):777-784.
|
[17] |
|
[18] |
|
[19] |
刘崇麟, 蒋康, 吴超凡, 等. 木焦油基再生沥青低温性能评价及其作用机理分析[J]. 建筑材料学报, 2021, 24(6):1255-1264.
|
[20] |
斯李. 糠醛抽出油对不同老化程度沥青的再生效果研究[D]. 广州: 华南理工大学, 2021.
|
[21] |
丁婕. 道路沥青五次老化再生微观分析[D]. 湘潭: 湖南科技大学, 2015.
|
[22] |
|
/
〈 |
|
〉 |