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Investigation of the Effect of Induction Heating on Asphalt Binder Aging in Steel Fibers Modified Asphalt Concrete

Li, Hechuan, Yu, Jianying, Wu, Shaopeng, Liu, Quantao, Li, Yuanyuan, Wu, Yaqi, Xu, Haiqin·2019·Materials

Abstract

Induction heating is a valuable technology to repair asphalt concrete damage inside. However, in the process of induction heating, induced particles will release a large amount of heat to act on asphalt binder in a short time. The purpose of this paper was to study the effect of induction heating on asphalt binder aging in steel fibers modified asphalt concrete. The experiments were divided into two parts: induction heating of Dramix steel fibers coated with asphalt binder (DA) and steel wool fibers modified asphalt concrete. After induction heating, the asphalt binders in the samples were extracted for testing aging indices with Fourier Transform Infrared (FTIR), Dynamic Shear Rheometer (DSR), and Four-Components Analysis (FCA) tests. The aging of asphalt binder was analyzed identifying the change of chemical structure, the diversification of rheological properties, and the difference of component. The experiments showed that the binder inside asphalt concrete began aging during induction heating due to thermal oxygen reaction and volatilization of light components. However, there was no peak value of the carbonyl index after induction heating of ten cycles, and the carbonyl index of DA was equivalent to that of binder in asphalt concrete after three induction heating cycles, which indicated the relatively closed environment inside asphalt concrete can inhibit the occurrence of the aging reaction.

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Crossref · 10.3390/ma12071067

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Figures

Figure 1 Morphology of steel wool fibers (a) and Dramix steel fibers (b).
Figure 1 Morphology of steel wool fibers (a) and Dramix steel fibers (b).CC BY · PubMed Central
Figure 2 Dramix steel fibers coated with asphalt binder (DA) for (a) Fourier Transform Infrared (FTIR) and Four-Components Analysis (FCA) tests and (b) Dynamic Shear Rheometer (DSR) test.
Figure 2 Dramix steel fibers coated with asphalt binder (DA) for (a) Fourier Transform Infrared (FTIR) and Four-Components Analysis (FCA) tests and (b) Dynamic Shear Rheometer (DSR) test.CC BY · PubMed Central
Figure 3 Grading curve of AC-13 steel wool fibers modified basalt asphalt mixture.
Figure 3 Grading curve of AC-13 steel wool fibers modified basalt asphalt mixture.CC BY · PubMed Central
Figure 4 Induction heating test samples.
Figure 4 Induction heating test samples.CC BY · PubMed Central
Figure 5 Induction heating test of Dramix asphalt-fibers (a) and asphalt concrete (b).
Figure 5 Induction heating test of Dramix asphalt-fibers (a) and asphalt concrete (b).CC BY · PubMed Central
Figure 6 Infrared imaging of samples during induction heating.
Figure 6 Infrared imaging of samples during induction heating.CC BY · PubMed Central
Figure 7 Induction heating of three-layer beams.
Figure 7 Induction heating of three-layer beams.CC BY · PubMed Central
Figure 8 Extraction and storage of asphalt binder coated on Dramix steel fibers.
Figure 8 Extraction and storage of asphalt binder coated on Dramix steel fibers.CC BY · PubMed Central
Figure 9 Laser particle size analysis of limestone fillers.
Figure 9 Laser particle size analysis of limestone fillers.CC BY · PubMed Central
Figure 10 Extraction process of asphalt binder in asphalt concrete: dissolution (a), filtration (b), and volatilization (c).
Figure 10 Extraction process of asphalt binder in asphalt concrete: dissolution (a), filtration (b), and volatilization (c).CC BY · PubMed Central
Figure 11 Infrared images of Dramix steel fibers and steel wool fibers after induction heating.
Figure 11 Infrared images of Dramix steel fibers and steel wool fibers after induction heating.CC BY · PubMed Central
Figure 12 Complex modulus master curve of asphalt binders in different induction heating conditions.
Figure 12 Complex modulus master curve of asphalt binders in different induction heating conditions.CC BY · PubMed Central
Figure 13 Phase angle master curve of asphalt binders in different induction heating conditions.
Figure 13 Phase angle master curve of asphalt binders in different induction heating conditions.CC BY · PubMed Central
Figure 14 FTIR spectra of asphalt binders before and after induction heating.
Figure 14 FTIR spectra of asphalt binders before and after induction heating.CC BY · PubMed Central
Figure 15 IC=O variation of asphalt binders before and after induction heating.
Figure 15 IC=O variation of asphalt binders before and after induction heating.CC BY · PubMed Central
Figure 16 IC=O index of asphalt binder after induction heating in different layers.
Figure 16 IC=O index of asphalt binder after induction heating in different layers.CC BY · PubMed Central
Figure 17 Component fractions of asphalt binders before and after induction heating in different conditions.
Figure 17 Component fractions of asphalt binders before and after induction heating in different conditions.CC BY · PubMed Central

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Research works printed but not linked: 28

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Metadata

Authors
Li, H., Yu, J., Wu, S., Liu, Q., Li, Y., Wu, Y., & Xu, H.
Venue
Materials
Publisher
MDPI AG
Published
2019-04-01
Volume
12
Issue
7
Pages
1067
ISSN
1996-1944
Cited by
28
References
0
Language
en
Funders
  • National Key R&D Program of China (2017YFE0111600)
  • National Natural Science Foundation of China (51778515&51508433)

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CoChat. (2026). Citation check: Investigation of the Effect of Induction Heating on Asphalt Binder Aging in Steel Fibers Modified Asphalt Concrete. https://app.cochat.ai/papers/10.3390/ma12071067
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Li, H., Yu, J., Wu, S., Liu, Q., Li, Y., Wu, Y., & Xu, H. (2019). Investigation of the Effect of Induction Heating on Asphalt Binder Aging in Steel Fibers Modified Asphalt Concrete. Materials. https://doi.org/10.3390/ma12071067

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