拜耳法赤泥粉胶比对沥青胶浆流变、疲劳性能及微观形貌的影响
DOI:
https://doi.org/10.70693/cjst.v2i5.2160Keywords:
拜耳法赤泥；沥青胶浆；粉胶比；流变性能；疲劳寿命；微观形貌Abstract
为明确拜耳法赤泥粉胶比对沥青胶浆高低温流变、疲劳及微观形貌的影响，以粉胶比1.0的石灰岩矿粉胶浆为参照，制备粉胶比分别为0.8、1.0和1.2的拜耳法赤泥沥青胶浆，开展动态剪切流变、弯曲梁流变、线性振幅扫描、扫描电镜及原子力显微试验。结果表明，64 ℃时三种赤泥胶浆的车辙因子较石灰岩矿粉胶浆分别提高31.9%、85.0%和122.8%；-12 ℃时蠕变劲度分别提高1.9%、26.9%和42.1%，蠕变速率分别降低5.2%、8.5%和9.2%。在2.5%应变下，三种赤泥胶浆的疲劳寿命较石灰岩矿粉胶浆提高45.0%、55.5%和28.9%；应变增至15%后，其疲劳寿命较基质沥青分别降低2.4%、18.1%和24.6%。拜耳法赤泥的细颗粒和多孔团聚结构扩大了沥青接触面积，胶浆断面形成较连续的过渡区；二维原子力形貌显示蜂状结构细化、表面起伏减弱。综合高低温与疲劳响应，粉胶比1.0具有较好的性能协调性。
References
[1] Khairul M A, Zanganeh J, Moghtaderi B. The composition, recycling and utilisation of Bayer red mud[J]. Resources, Conservation and Recycling, 2019, 141: 483-498. DOI: https://doi.org/10.1016/j.resconrec.2018.11.006
[2] Wu W, Jiang W, Yuan D, et al. A review of asphalt-filler interaction: Mechanisms, evaluation methods, and influencing factors[J]. Construction and Building Materials, 2021, 299: 124279. DOI: https://doi.org/10.1016/j.conbuildmat.2021.124279
[3] Choudhary J, Kumar B, Gupta A. Bauxite residue: A viable filler for asphalt mix[J]. Građevinar, 2022, 74(6): 481-489.
[4] Zhang J, Liu S, Yao Z, et al. Environmental aspects and pavement properties of red mud waste as the replacement of mineral filler in asphalt mixture[J]. Construction and Building Materials, 2018, 180: 605-613. DOI: https://doi.org/10.1016/j.conbuildmat.2018.05.268
[5] Zhang J, Li P, Liang M, et al. Utilization of red mud as an alternative mineral filler in asphalt mastics to replace natural limestone powder[J]. Construction and Building Materials, 2020, 237: 117821. DOI: https://doi.org/10.1016/j.conbuildmat.2019.117821
[6] Fu T, Zhang H, Qin F, et al. Sustainable utilization of Bayer red mud in asphalt materials: Multiscale performance enhancement mechanisms and economic feasibility evaluation[J]. Journal of Cleaner Production, 2025, 531: 146907. DOI: https://doi.org/10.1016/j.jclepro.2025.146907
[7] Das A K, Singh D. Evaluation of fatigue performance of asphalt mastics composed of nano hydrated lime filler[J]. Construction and Building Materials, 2021, 269: 121322. DOI: https://doi.org/10.1016/j.conbuildmat.2020.121322
[8] Hung A M, Fini E H. AFM study of asphalt binder bee structures: Origin, mechanical fracture, topological evolution, and experimental artifacts[J]. RSC Advances, 2015, 5(117): 96972-96982. DOI: https://doi.org/10.1039/C5RA13982A
[9] 交通运输部. 公路工程沥青及沥青混合料试验规程: JTG 3410—2025[S]. 北京: 人民交通出版社, 2025.
[10] American Association of State Highway and Transportation Officials. Estimating damage tolerance of asphalt binders using the linear amplitude sweep: AASHTO TP 101-14[S]. Washington, DC: AASHTO, 2014.
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