Alessandro Menozzi
Induction healing of fatigue damage in asphalt test samples
Menozzi, Alessandro; Garcia, Alvaro; Partl, Manfred N.; Tebaldi, Gabriele; Schuetz, Philipp
Authors
Alvaro Garcia
Manfred N. Partl
Gabriele Tebaldi
Philipp Schuetz
Abstract
To promote asphalt self-healing, asphalt mixture can be heated via induction heating. This technique consists in adding electrically conductive and magnetically susceptible particles (e.g. steel) into asphalt mixture; then, with the help of an induction heating machine asphalt mixture can be heated. When the temperature of asphalt mixture is above a certain threshold (between 30 °C and 70 °C, depending on the type of bitumen), microcracks start self-healing. Induction healing has been previously demonstrated for repairing asphalt mixture test specimens broken in two pieces, but this technique has never been used for repairing microcracks caused by fatigue damage. In this article, the optimum moment and temperature needed to repair asphalt mixture under fatigue damage have been experimentally determined. With this purpose, Marshall test specimens have been damaged through indirect tensile fatigue tests and healed via induction heating. Finally, damage and healing have been quantified through computed tomography scan tests.
Citation
Menozzi, A., Garcia, A., Partl, M. N., Tebaldi, G., & Schuetz, P. (2015). Induction healing of fatigue damage in asphalt test samples. Construction and Building Materials, 74, 162-168. https://doi.org/10.1016/j.conbuildmat.2014.10.034
Journal Article Type | Article |
---|---|
Acceptance Date | Oct 21, 2014 |
Online Publication Date | Nov 7, 2014 |
Publication Date | Jan 15, 2015 |
Deposit Date | Sep 17, 2018 |
Journal | Construction and Building Materials |
Print ISSN | 0950-0618 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 74 |
Pages | 162-168 |
DOI | https://doi.org/10.1016/j.conbuildmat.2014.10.034 |
Keywords | Induction heating, Asphalt mixture, Fatigue damage, Self-healing, Steel particles |
Public URL | http://www.scopus.com/inward/record.url?eid=2-s2.0-84909619786&partnerID=40&md5=49f4fa911d18e4a06286b46759306222 |
Publisher URL | https://www.sciencedirect.com/science/article/abs/pii/S0950061814011787 |
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