Microwave heating mechanism and Self-healing performance of scrap tire pyrolysis carbon black modified bitumen

Fu Wang; Hongbin Zhu; Yuanyuan Li; Dengjun Gu; Yangming Gao; Jianlin Feng; Benan Shu; Chao Li; Shaopeng Wu

doi:10.1016/j.conbuildmat.2022.127873

Microwave heating mechanism and Self-healing performance of scrap tire pyrolysis carbon black modified bitumen

Fu Wang, Hongbin Zhu, Yuanyuan Li^*, Dengjun Gu, Yangming Gao, Jianlin Feng, Benan Shu, Chao Li, Shaopeng Wu

^*Corresponding author for this work

Pavement Engineering

Research output: Contribution to journal › Article › Scientific › peer-review

18 Citations (Scopus)

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Abstract

Conventional asphalt mixture has poor microwave absorbing performance and microwave heating efficiency. Based on the characteristics of dielectric loss of scrap tire pyrolysis carbon black (PCB), it is proposed to improve the microwave absorbing performance and self-healing rate of bitumen. The phase composition and electromagnetic parameters of PCB were tested to reveal its microwave heating mechanism. The preparation parameters, heating characteristics and self-healing properties of PCB modified bitumen were studied through the dispersion uniformity test, microwave heating test and SCB test. The main phases of PCB are microwave absorbing carbon and silicon, indicating that PCB is a good electric loss microwave absorbing material. 40 min is the recommended mixing time of 15% PCB modified bitumen. PCB's dosage, microwave frequency and microwave heating time have significant effects on the microwave heating characteristics of PCB modified bitumen. PCB can improve high-temperature stability, thermal conductance, heat storage capacity and self-healing rate of bitumen.

Original language	English
Article number	127873
Number of pages	16
Journal	Construction and Building Materials
Volume	341
DOIs	https://doi.org/10.1016/j.conbuildmat.2022.127873
Publication status	Published - 2022

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

Bitumen
Heating characteristics
Microwave heating mechanism
Scrap tire pyrolysis carbon black (PCB)
Self-healing performance

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10.1016/j.conbuildmat.2022.127873

1-s2.0-S095006182201546X-mainFinal published version, 12.1 MB

Cite this

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title = "Microwave heating mechanism and Self-healing performance of scrap tire pyrolysis carbon black modified bitumen",

abstract = "Conventional asphalt mixture has poor microwave absorbing performance and microwave heating efficiency. Based on the characteristics of dielectric loss of scrap tire pyrolysis carbon black (PCB), it is proposed to improve the microwave absorbing performance and self-healing rate of bitumen. The phase composition and electromagnetic parameters of PCB were tested to reveal its microwave heating mechanism. The preparation parameters, heating characteristics and self-healing properties of PCB modified bitumen were studied through the dispersion uniformity test, microwave heating test and SCB test. The main phases of PCB are microwave absorbing carbon and silicon, indicating that PCB is a good electric loss microwave absorbing material. 40 min is the recommended mixing time of 15% PCB modified bitumen. PCB's dosage, microwave frequency and microwave heating time have significant effects on the microwave heating characteristics of PCB modified bitumen. PCB can improve high-temperature stability, thermal conductance, heat storage capacity and self-healing rate of bitumen.",

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note = "Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.",

year = "2022",

doi = "10.1016/j.conbuildmat.2022.127873",

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AU - Wang, Fu

AU - Zhu, Hongbin

AU - Li, Yuanyuan

AU - Gu, Dengjun

AU - Gao, Yangming

AU - Feng, Jianlin

AU - Shu, Benan

AU - Li, Chao

AU - Wu, Shaopeng

N1 - Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2022

Y1 - 2022

N2 - Conventional asphalt mixture has poor microwave absorbing performance and microwave heating efficiency. Based on the characteristics of dielectric loss of scrap tire pyrolysis carbon black (PCB), it is proposed to improve the microwave absorbing performance and self-healing rate of bitumen. The phase composition and electromagnetic parameters of PCB were tested to reveal its microwave heating mechanism. The preparation parameters, heating characteristics and self-healing properties of PCB modified bitumen were studied through the dispersion uniformity test, microwave heating test and SCB test. The main phases of PCB are microwave absorbing carbon and silicon, indicating that PCB is a good electric loss microwave absorbing material. 40 min is the recommended mixing time of 15% PCB modified bitumen. PCB's dosage, microwave frequency and microwave heating time have significant effects on the microwave heating characteristics of PCB modified bitumen. PCB can improve high-temperature stability, thermal conductance, heat storage capacity and self-healing rate of bitumen.

AB - Conventional asphalt mixture has poor microwave absorbing performance and microwave heating efficiency. Based on the characteristics of dielectric loss of scrap tire pyrolysis carbon black (PCB), it is proposed to improve the microwave absorbing performance and self-healing rate of bitumen. The phase composition and electromagnetic parameters of PCB were tested to reveal its microwave heating mechanism. The preparation parameters, heating characteristics and self-healing properties of PCB modified bitumen were studied through the dispersion uniformity test, microwave heating test and SCB test. The main phases of PCB are microwave absorbing carbon and silicon, indicating that PCB is a good electric loss microwave absorbing material. 40 min is the recommended mixing time of 15% PCB modified bitumen. PCB's dosage, microwave frequency and microwave heating time have significant effects on the microwave heating characteristics of PCB modified bitumen. PCB can improve high-temperature stability, thermal conductance, heat storage capacity and self-healing rate of bitumen.

KW - Bitumen

KW - Heating characteristics

KW - Microwave heating mechanism

KW - Scrap tire pyrolysis carbon black (PCB)

KW - Self-healing performance

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Microwave heating mechanism and Self-healing performance of scrap tire pyrolysis carbon black modified bitumen

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