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Volume 14
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10.3390/app14135857
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Article

The Impact of Heterogeneity of Aggregates Coated with Asphalt Mortar on Their FTIR Spectra and Spectral Reproducibility

by
Jing Yuan
1,2,3,
Maoping Ran
4,
Xinxing Zhou
5,
Pan Zhu
1,
Lu Liu
1,
Ruiqie Jiang
1,* and
Xinglin Zhou
1,*
1
School of Machinery and Automation, Wuhan University of Science and Technology, Wuhan 430081, China
2
School of Mechanical Engineering, Hubei Engineering University, Xiaogan 432100, China
3
Hubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
4
School of Automotive and Traffic Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
5
State Environmental Protection Key Laboratory of Efficient Utilization Technology of Coal Waste Resources, Institute of Resources and Environmental Engineering, Shanxi University, Taiyuan 030006, China
*
Authors to whom correspondence should be addressed.
Appl. Sci. 2024, 14(13), 5857; https://doi.org/10.3390/app14135857
Submission received: 7 June 2024 / Revised: 26 June 2024 / Accepted: 2 July 2024 / Published: 4 July 2024
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Abstract

Since FTIR is a sensitive micro-region measurement method, research on the impact of the heterogeneity of both aggregates and asphalt mortar is meaningful and comprehensive for accurate measurement with FTIR spectroscopy. In this paper, the impact of the heterogeneity of aggregates coated with asphalt mortar on their FTIR spectra and spectral reproducibility was creatively studied. The comparative analysis of the respective absorption peaks indicated that the characteristic absorption peaks of the aggregate coated with asphalt mortar were the superposition of the respective absorption peaks of its components. And research on the spectra of the coated aggregates obtained from the same batch of asphalt mixture fabricated at the same time showed that significantly different peak intensities could be affected by minor variations in their components due to the heterogeneity. Furthermore, statistical analysis suggested that the original spectral reproducibility of the coated aggregates was greatly affected by their heterogeneity, with a high coefficient of variation values. In conclusion, the heterogeneity of the coated aggregates could affect peak intensities and spectral reproducibility in micro-regions.
Keywords: aggregates coated with asphalt mortar; heterogeneity; spectral reproducibility; statistical analysis; ATR-FTIR aggregates coated with asphalt mortar; heterogeneity; spectral reproducibility; statistical analysis; ATR-FTIR

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MDPI and ACS Style

Yuan, J.; Ran, M.; Zhou, X.; Zhu, P.; Liu, L.; Jiang, R.; Zhou, X. The Impact of Heterogeneity of Aggregates Coated with Asphalt Mortar on Their FTIR Spectra and Spectral Reproducibility. Appl. Sci. 2024, 14, 5857. https://doi.org/10.3390/app14135857

AMA Style

Yuan J, Ran M, Zhou X, Zhu P, Liu L, Jiang R, Zhou X. The Impact of Heterogeneity of Aggregates Coated with Asphalt Mortar on Their FTIR Spectra and Spectral Reproducibility. Applied Sciences. 2024; 14(13):5857. https://doi.org/10.3390/app14135857

Chicago/Turabian Style

Yuan, Jing, Maoping Ran, Xinxing Zhou, Pan Zhu, Lu Liu, Ruiqie Jiang, and Xinglin Zhou. 2024. "The Impact of Heterogeneity of Aggregates Coated with Asphalt Mortar on Their FTIR Spectra and Spectral Reproducibility" Applied Sciences 14, no. 13: 5857. https://doi.org/10.3390/app14135857

APA Style

Yuan, J., Ran, M., Zhou, X., Zhu, P., Liu, L., Jiang, R., & Zhou, X. (2024). The Impact of Heterogeneity of Aggregates Coated with Asphalt Mortar on Their FTIR Spectra and Spectral Reproducibility. Applied Sciences, 14(13), 5857. https://doi.org/10.3390/app14135857

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