Induced heating-healing of conductive asphalt concrete as a sustainable repairing technique: A review

Karimi, Mohammad M.; Amani, Saeed; Jahanbakhsh, Hamid; Jahangiri, Behnam; Alavi, Amir H.

doi:10.1016/j.clet.2021.100188

Cited by 26 publications

(17 citation statements)

References 118 publications

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“…The deicing efficiency ratio of specimen E, which was the deicing time relative to the control specimen, was 1.28. For magnetite cement concrete microwave de-icing pavement, in which magnetite is a widely studied road-absorbing material, the deicing efficiency ratio is 1.46~3.3 [29][30][31]. The improvement in the deicing efficiency of pavement with a CFS was lower than that of pavement with magnetite, while the CFS dissipated microwaves by the law of EM propagation, which is a new method that could be combined with absorbing materials to further improve deicing efficiency.…”

Section: Microwave Deicing Timementioning

confidence: 99%

Enhanced Microwave Deicing Capacity of Cement Pavement with Carbon Fiber Screens

Li,

Zhao,

Jing

et al. 2024

Materials

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The combination of an absorbing structure and a road is a promising strategy for road deicing using microwaves. In this study, cement mortar (CM) specimens containing a carbon fiber screen (CFS) were prepared to concentrate electromagnetic losses on a road surface. The effect of the size and depth of the CFS on the surface heating efficiency of the microwave was studied and optimized, and a microwave deicing experiment was conducted. The results indicated that the destructive interference produced by the CFS led to the effective surface heating of the CM/CFS specimens. The optimal surface heating rate was 0.83 °C/s when the spacing, depth, and width of the CFS were 5.22, 13.31, and 2.80 mm, respectively. The deicing time was shortened by 21.68% from 83 to 65 s, and the heating rate increased by 17.14% from 0.70 to 0.82 °C/s for the specimen with CFS-1, which was 15 mm depth. Our results demonstrate that CM/CFS composite structures can be effectively applied to increase the capacity and accelerate the development of the microwave deicing of roads.

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Section: Microwave Deicing Timementioning

confidence: 99%

Enhanced Microwave Deicing Capacity of Cement Pavement with Carbon Fiber Screens

Li,

Zhao,

Jing

et al. 2024

Materials

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“…The first attempt of such development dates back to 1950s [16,28] and the 1960 [9], whereas the first patent related to conductive asphalt was issued in 1965 [22]. Manifested by bitumen, asphalt bears a self-healing feature that was discovered in 1967, and can repair microcracks if appropriate resting period is provided to it between the repeated loading cycles so as to allow the flow of asphalt binder via the induced-healing process [29][30][31][32][33]. Asphalt's conductivity depends on the conductive network in the mixture which indirectly depends on the geometry, composition, and content of the additive used [12,29].…”

Section: Conductive Additives For Self-sensing Asphaltmentioning

confidence: 99%

A review of conductive additives for enhancing the electrical properties of self-sensing asphalt

Yousafzai,

Sutanto,

Khan

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Asphalt is traditionally an insulator to the flow of electric current, but it can be transformed into a self-sensing conductive material by incorporating recyclable and environmentally friendly additives. These additives offer a range of smart and sustainable applications in the pavement industry. However, there is still much to be learned about the production and performance behavior of conductive asphalt. This study presents a comprehensive review of the literature on conductive additives used in asphalt to provide a holistic understanding of the current state of research in this field. The objective of the study is to critically review and characterize conductive additives used in asphalt to achieve electric conductivity in it and resultingly explore its self-sensing features. The development of conductive asphalt has significant research potential, and improving its piezoresistivity and conductive network is the focus of future smart asphalt technology research. The review provides an in-depth understanding of conductive asphalt concrete and identifies current research themes and corresponding challenges. This study serves as a valuable resource for researchers and industry professionals working in the field of conductive asphalt.

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“…While the optimum temperature for self-healing is 85 °C, the excessive temperature will reduce the asphalt healing ratio [13]. Various methods have been studied to achieve the selfhealing phase of asphalt, such as encapsulated rejuvenators [20], microvascular fibers [21], microwave heating [22], and induction heating [23].…”

Section: Introductionmentioning

confidence: 99%

Simulation Analysis of Induction Heating as a Self-Healing Method on Asphalt

Esdiyanto

Ubaidillah

Budiana

et al. 2023

CFDL

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Asphalt is a self-healing material at a specific temperature. The induced heating-healing of asphalt has been developed in the last few decades; an inductive asphalt can be created by adding inductive material. This paper aims to predict the performance of induction heating as a self-healing method on asphalt. This numerical simulation is carried out to obtain a suitable induction heater configuration. Numerical simulation is carried out in two stages, electrical analysis with ANSYS Electronics Desktop software and thermal analysis with ANSYS Transient Thermal Analysis. A cylindrical inductive asphalt sample is modeled and subjected to an electromagnetic field by a coil flowed by a high-frequency AC. As a result, a comparative temperature distribution is obtained by several current and frequency variations. The difference in current magnitude and frequency that flowed in the coil affects asphalt's heating performance and healing capacity. An increase in the frequency configuration results in a more significant increase in temperature than increasing the current magnitude in the coil.

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Induced heating-healing of conductive asphalt concrete as a sustainable repairing technique: A review

Cited by 26 publications

References 118 publications

Enhanced Microwave Deicing Capacity of Cement Pavement with Carbon Fiber Screens

Enhanced Microwave Deicing Capacity of Cement Pavement with Carbon Fiber Screens

A review of conductive additives for enhancing the electrical properties of self-sensing asphalt

Simulation Analysis of Induction Heating as a Self-Healing Method on Asphalt

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