A method for bottom-up cracks healing via selective and deep microwave heating

Bevacqua, Martina T.; Isernia, Tommaso; Praticò, Filippo Giammaria; Zumbo, Sabrina

doi:10.1016/j.autcon.2020.103426

Cited by 16 publications

(6 citation statements)

References 42 publications

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“…Microwave heating technology is a promising technology. e key of effective heating is that microwave heating is a kind of direct energy conversion within the material while heating [48,49]. According to the previous studies, the amount of curing time can be substantially reduced by using microwave curing due to largely concentrated microwave energy [11], and it is very convenient for large-scale commercial application.…”

Section: Ermal Curingmentioning

confidence: 99%

Application of Epoxy‐Asphalt Composite in Asphalt Paving Industry: A Review with Emphasis on Physicochemical Properties and Pavement Performances

Chen

Hossiney

Yang

et al. 2021

Advances in Materials Science and Engineering

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One of the failure mechanisms associated with asphalt paving layers, especially on steel deck bridges, is large permanent deformation, which adversely affects its long-term performance in service. Thus, epoxy resin was introduced in asphalt paving industry to tackle permanent deformation of asphalt mixtures due to its thermosetting nature. In this review, epoxy resin as a dominant component of the epoxy-asphalt composite system was first considered, followed by a discussion on its curing methods and curing mechanism. Furthermore, the physicochemical property and mechanical performance of epoxy asphalt and epoxy asphalt mixture were thoroughly examined. Crosslink density of epoxy asphalt dictates its viscosity and thus the allowable construction time. Phase separation and dispersion of asphalt particles in the epoxy matrix was observed for epoxy-asphalt composite, and it showed superior elastic behavior and deformation resistance capability when compared with conventional asphalt materials. Furthermore, epoxy asphalt mixture exhibited significantly higher compressive strength, much better rutting resistance, and superior durability and water resistance properties. However, its low-temperature cracking resistance was slightly compromised.

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Section: Ermal Curingmentioning

confidence: 99%

Application of Epoxy‐Asphalt Composite in Asphalt Paving Industry: A Review with Emphasis on Physicochemical Properties and Pavement Performances

Chen

Hossiney

Yang

et al. 2021

Advances in Materials Science and Engineering

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“…e second technique used to increase the temperature of asphalt mixtures for the improvement of asphalt road maintenance was microwave radiation heating [33][34][35]. e preliminary analysis for production and cost was conducted by Bevacqua et al [36]. e results show that the performance of microwave healing in terms of cost-saving for a lifespan of 100 years is improved compared to a traditional method, such as reconstructing the asphaltic layer that requires transportation and additional resource [37].…”

Section: Induced Healing Via Microwave Heatingmentioning

confidence: 99%

A Review of Asphaltic Crack Healing Approaches and Its Mechanism

Ghazali

Hasan

Seman

et al. 2021

Advances in Materials Science and Engineering

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The concept of self-healing has an excellent potential to extend the life of asphalt pavement. This technology can be considered a sustainable technology due to its ability to reduce the utilization of asphalt mixture production materials used for road maintenance, polluting the environment. It is a complex physicochemical process wherein the molecular diffusion healing mechanisms in asphalt materials are inspired by self-healing polymeric systems, which describe the self-recovery behaviors based on polymer chain dynamics. Several methods have been adopted to improve the self-healing of asphalt, one of which is induction healing. It is the process of heating the asphalt pavement incorporated with an electrically conductive material such as steel fibers, wherein asphalt healing is undertaken via electric field induction. Induction healing via induction heating occurs with eddy current where the electric current flows within the conductive fibers when magnetically susceptible under the magnetic field. Microwave heating is another self-healing method similar to induction in which magnetic radiation is employed to treat asphalt mixtures instead of the electric field-induced induction healing processes. The conductive fibers can absorb the electromagnetic (EM) waves to convert them into heat energy through doublet polarization, interface polarization, and electrical conduction dissipation when placed in the microwave field. These two types of heating systems, which are induction heating and microwave heating, are compared and discussed thoroughly in this study. Finally, some recommendations for the future development of self-healing asphalt are proposed.

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“…Both infrared heating and induction heating have good heating effects on bitumen [28,29]. However, induction heating of asphalt mixture does not have the characteristics of selective, deep and non-destructive heating, and may not effectively treat the internal distresses of asphalt pavement [30]. In this technology, the damaged road surface is cleaned before placing the bituminous mix.…”

Section: Introductionmentioning

confidence: 99%

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

Zhu

et al. 2022

Construction and Building Materials

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A method for bottom-up cracks healing via selective and deep microwave heating

Cited by 16 publications

References 42 publications

Application of Epoxy‐Asphalt Composite in Asphalt Paving Industry: A Review with Emphasis on Physicochemical Properties and Pavement Performances

Application of Epoxy‐Asphalt Composite in Asphalt Paving Industry: A Review with Emphasis on Physicochemical Properties and Pavement Performances

A Review of Asphaltic Crack Healing Approaches and Its Mechanism

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

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