The Effect of Basalt Fiber Dispersion on the Marshall Parameters

Öz

The mechanical performance of fiber-reinforced asphalt mixtures is fundamentally governed by the uniformity of fiber distribution within the binder matrix. However, basalt fibers, despite their superior tensile strength and thermal stability, possess a strong tendency to agglomerate during mixing, which can compromise pavement durability. This study investigates the dispersion effect of basalt fibers on the Marshall stability and volumetric properties of Hot Mix Asphalt (HMA). Using a 50/70 penetration grade bitumen and limestone aggregates, two groups of mixtures were prepared: a control group with conventional non-dispersed fibers (N-BF) and an experimental group utilizing an alcohol-assisted dispersion technique (D-BF) to ensure monofilament separation. Marshall mix design results indicated that fiber dispersion significantly influenced binder efficiency and structural stiffness. The D-BF mixtures achieved maximum stability and target air voids at notably lower bitumen contents compared to the N-BF group, resulting in a reduction of the Optimum Bitumen Content (OBC) by approximately 0.2–0.3%. Furthermore, the improved dispersion led to lower flow values and a higher Marshall Quotient (MQ), indicating enhanced resistance to shear deformation and rutting. Conversely, fiber agglomeration in the N-BF mixtures hindered compaction and increased binder demand. These findings demonstrate that the alcohol-dispersion method effectively unlocks the reinforcing potential of basalt fibers, offering a more economical and durable solution for asphalt pavement construction.

Anahtar Kelimeler

• HMA
• Basalt fiber
• Fiber dispersion
• Marshall parameters

Kaynakça

1. Cai, C., Lou, K., Qian, F., & Xiao, P. (2024). Influence of basalt fiber morphology on the properties of asphalt binders and mixtures. Materials, 17(21), Article 5358. https://doi.org/10.3390/ma17215358
2. Cetin, A., Evirgen, B., Karslioglu, A., & Tuncan, A. (2021). The effect of basalt fiber on the performance of stone mastic asphalt. Periodica Polytechnica Civil Engineering, 65(1), 299–308. https://doi.org/10.3311/PPci.16851
3. Cheng, Y., Yu, D., Gong, Y., Zhu, C., & Tao, J. (2018). Laboratory evaluation on performance of eco-friendly basalt fiber and diatomite compound modified asphalt mixture. Materials, 11(12), Article 2400. https://doi.org/10.3390/ma11122400
4. Hui, Y., Men, G., Xiao, P., Lou, K., & Kang, A. (2022). Recent advances in basalt fiber reinforced asphalt mixture for pavement applications. Materials, 15(19), Article 6826. https://doi.org/10.3390/ma15196826
5. Li, B., Liu, M., Kang, A., Xiao, P., & Lou, K. (2023). Effect of basalt fiber diameter on the properties of asphalt mastic and asphalt mixture. Materials, 16(20), Article 6711. https://doi.org/10.3390/ma16206711
6. Lou, K., Xiao, P., Kang, A., Wu, Z., & Lu, P. (2021). Performance evaluation and adaptability optimization of hot mix asphalt reinforced by mixed lengths basalt fibers. Construction and Building Materials, 292, Article 123373. https://doi.org/10.1016/j.conbuildmat.2021.123373
7. Morova, N. (2013). Investigation of usability of basalt fibers in hot mix asphalt concrete. Construction and Building Materials, 47, 175–180. https://doi.org/10.1016/j.conbuildmat.2013.04.048
8. Phung, B. N., Le, T. H., & Phung, Q. T. (2023). Novel approaches to predict the Marshall parameters of basalt fiber asphalt concrete. Construction and Building Materials, 400, Article 132847. https://doi.org/10.1016/j.conbuildmat.2023.132847

9. Ren, D., Luo, W., Su, S., Wang, Z., Kong, L., & Ai, C. (2024). Study on crack resistance of basalt fiber reinforced asphalt mixture modified by titanate coupling agent based on digital image correlation. Construction and Building Materials, 437, Article 136934. https://doi.org/10.1016/j.conbuildmat.2024.136934
10. Shi, C., Wang, J., Sun, S., & Li, Q. (2024). Research on basalt fiber oil/asphalt absorption performance and test methods suitable for asphalt mixture with different structures. Coatings, 14(2), Article 204. https://doi.org/10.3390/coatings14020204
11. Wang, W., Cheng, Y., & Tan, G. (2018). Design optimization of SBS-modified asphalt mixture reinforced with eco-friendly basalt fiber based on response surface methodology. Materials, 11(8), Article 1311. https://doi.org/10.3390/ma11081311
12. Xiang, Y., Xie, Y., & Long, G. (2018). Effect of basalt fiber surface silane coupling agent coating on fiber reinforced asphalt: From macro-mechanical performance to micro-interfacial mechanism. Construction and Building Materials, 179, 107–116. https://doi.org/10.1016/j.conbuildmat.2018.05.244
13. Xin, Y., Nie, X., Zhou, Z., & Lan, X. (2025). Fatigue performance of basalt fiber-reinforced high-strength modified OGFC asphalt mixture under heavy load conditions. Construction and Building Materials, 494, Article 143550. https://doi.org/10.1016/j.conbuildmat.2024.143550
14. Xu, J., Liu, M., Kang, A., Li, B., Xiao, P., & Lou, K. (2024). Effect of fiber characteristic parameters on the synergistic action and mechanism of basalt fiber asphalt mortar. Construction and Building Materials, 438, Article 137234. https://doi.org/10.1016/j.conbuildmat.2024.137234
15. Zhang, H., Yang, W., Zhao, J., Lv, P., & Sun, L. (2025). Application of graphene-basalt fiber asphalt mixtures in pavement engineering in seasonally frozen regions. Journal of Materials in Civil Engineering, 37(4), Article 04025069. https://doi.org/10.1061/JMCEE7.MTENG-18306
16. Zhao, H., Guan, B., & Xiong, R. (2020). Investigation of the performance of basalt fiber reinforced asphalt mixture. Applied Sciences, 10(5), Article 1561. https://doi.org/10.3390/app10051561
17. Zhu, C., Luo, H., Tian, W., Cheng, Y., & Li, G. (2022). Investigation on fatigue performance of diatomite/basalt fiber composite modified asphalt mixture. Polymers, 14(3), Article 414. https://doi.org/10.3390/polym14030414