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ORIGINAL RESEARCH article

Front. Mater.
Sec. Structural Materials
Volume 12 - 2025 | doi: 10.3389/fmats.2025.1495219
This article is part of the Research Topic Asphalt Pavement Performance under Complex Service Conditions View all 10 articles

Research on The Effect of Lithology of Fine Aggregates on The Performance of Rubberized Asphalt Mixtures

Provisionally accepted
LiHao Zeng LiHao Zeng 1*Honggang Zhang Honggang Zhang 1*Shuo Jiang Shuo Jiang 2*Hui Huang Hui Huang 1*Baolin Xiong Baolin Xiong 3*Haitao Yuan Haitao Yuan 3*
  • 1 Guangxi Transportation Science and Technology Group CO., LTD., Nanning, China
  • 2 School of Traffic and Transportation Engineering, Changsha University of Science and Technology, Changsha, Hunan Province, China
  • 3 Guangxi Jiaoke New Materials Technology Co., Ltd.,, Nanning, China

The final, formatted version of the article will be published soon.

    To investigate the effect of fine aggregate lithology on the performance of rubberized asphalt mixtures. SEM, XRD, and contact angle tests were used to analyze the microscopic physical and chemical properties of 0-3 mm grain size diabase and limestone. Then the performance characteristics of two types of ARAC-13 rubberized asphalt mixtures (with the diabase coarse aggregates and diabase fine aggregates and diabase coarse aggregates and limestone fine aggregates, respectively) were compared by conventional high-temperature water stability performance test, uniaxial penetration test, accelerated loading abrasion test. The results show that the surface roughness, chemical composition, and surface adhesion properties of limestone are better than those of diabase, and the surface roughness of limestone is 13.9% higher than that of diabase, and the surface adhesion energy is 6.4% higher. However, the results show relatively small differences between the asphalt mixtures with the diabase coarse aggregates and diabase fine aggregates and diabase coarse aggregates and limestone fine aggregates in the conventional water stability performance test and the high-temperature performance test. Furthermore, the strength reaches 90% when cured for 8 h for limestone and 12 h for diabase, and the curing rate is faster for limestone.Diabase specimens' anti-abrasion performance is superior to limestone specimens, but the antiabrasion decay performance is the opposite. In summary, it can be seen that limestone fine aggregate has better adhesion performance with asphalt than diabase fine aggregate, and it was recommended that diabase coarse aggregate and limestone fine aggregate be used to improve the asphalt-aggregate interface and the road performance of the asphalt pavement.

    Keywords: Asphalt mixtures, Fine aggregates, Physical and chemical properties, Curing properties, anti-slip decay properties

    Received: 12 Sep 2024; Accepted: 15 Jan 2025.

    Copyright: © 2025 Zeng, Zhang, Jiang, Huang, Xiong and Yuan. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence:
    LiHao Zeng, Guangxi Transportation Science and Technology Group CO., LTD., Nanning, China
    Honggang Zhang, Guangxi Transportation Science and Technology Group CO., LTD., Nanning, China
    Shuo Jiang, School of Traffic and Transportation Engineering, Changsha University of Science and Technology, Changsha, 410004, Hunan Province, China
    Hui Huang, Guangxi Transportation Science and Technology Group CO., LTD., Nanning, China
    Baolin Xiong, Guangxi Jiaoke New Materials Technology Co., Ltd.,, Nanning, China
    Haitao Yuan, Guangxi Jiaoke New Materials Technology Co., Ltd.,, Nanning, China

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