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Appl. Sci. 2018, 8(11), 2308; https://doi.org/10.3390/app8112308

Induction Heating-Assisted Compaction in Porous Asphalt Pavements: A Computational Study

1
School of Transportation and Logistics, Dalian University of Technology, Dalian 116024, China
2
Civil Engineering and Geosciences, Delft University of Technology, 2628 CD Delft, The Netherlands
3
School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China
*
Author to whom correspondence should be addressed.
Received: 29 September 2018 / Revised: 28 October 2018 / Accepted: 1 November 2018 / Published: 20 November 2018
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Abstract

Low temperature asphalt (LTA) technologies, such as warm-mixed asphalt mixes, are utilized in the paving industry to lower energy demands and greenhouse gas emissions during asphalt mixing and pavement construction. However, the asphalt mixes developed that incorporate LTA additives are more sensitive than hot-mixed asphalts to temperature reduction during compaction, which leads to inadequate compaction and subsequent poor pavement performance. The induction heating-assisted compaction of pavement structures appears to be an effective way to ameliorate such issues and to improve mix compactability at lower temperatures. Considering that induction-assisted compaction is a complex process, a computational methodology is proposed in this paper. A porous asphalt concrete mix was considered as case material. For the pavement compaction analyses after induction, the temperature field generated by electromagnetic induction was predicted and the material parameters of asphalt mortar were adjusted. The effect of induction heating on asphalt compaction effectiveness, the tendency of mix density changing, the increase in compactor passes, and the influence of temperature on compaction at different locations in the pavement were studied as well. View Full-Text
Keywords: Induction heating; pavement compaction; porous asphalt mixes; computational tools Induction heating; pavement compaction; porous asphalt mixes; computational tools
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Zhou, C.; Liu, X.; Apostolidis, P.; Scarpas, A.T.; He, L. Induction Heating-Assisted Compaction in Porous Asphalt Pavements: A Computational Study. Appl. Sci. 2018, 8, 2308.

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