Top-down cracking self-healing of asphalt pavements with steel filler from industrial waste applying microwaves

Franesqui, Miguel A.; Yepes, Jorge; García-González, Cándida

doi:10.1016/j.conbuildmat.2017.05.161

Cited by 61 publications

(32 citation statements)

References 23 publications

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“…This increase in porosity is associated with a reduction of the mechanical properties. Other researchers (Franesqui et al, 2017), have only evaluated the effect of adding metallic waste in the heating of asphalt mixtures, without assessing the crack-healing capabilities. Also, a number of waste materials are used in asphalt mixtures without healing purposes, with the aim of replacing virgin materials with waste, or improving other properties of the mixtures (Abreu et al, 2015;Arabani and Tahami, 2017;Calabi-Floody and Thenoux, 2012;Poulikakos et al, 2017;Sun et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Self-healing properties of recycled asphalt mixtures containing metal waste: An approach through microwave radiation heating

González

Norambuena-Contreras

Storey

et al. 2018

Journal of Environmental Management

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Section: Introductionmentioning

confidence: 99%

Self-healing properties of recycled asphalt mixtures containing metal waste: An approach through microwave radiation heating

González

Norambuena-Contreras

Storey

et al. 2018

Journal of Environmental Management

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“…However, in line with previous studies on the incorporation of waste materials into asphalt pavements for different purposes [6][7][8], recent investigations have explored the use of metal by-products as a means of improving the resource and recycling efficiency of the self-healing process [4,[9][10][11]. Research on self-healing for asphalt pavements have primarily focused on the experimental characterization of the healing capacity of asphalt concrete [12][13][14], porous asphalt [4,15,16] and stone mastic asphalt [17] mixtures through the addition of virgin metal particles.…”

Section: Introductionmentioning

confidence: 82%

Optimizing the valorization of industrial by-products for the induction healing of asphalt mixtures

Vila-Cortavitarte

Jato-Espino

Tabaković

et al. 2019

Construction and Building Materials

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Self-healing within asphalt pavements is the process whereby road cracks can be repaired automatically when thermal and mechanical conditions are met. To accelerate and improve this healing process, metal particles are added to asphalt mixtures. However, thisapproach is costly both in economic and environmental terms due to the use of virgin metallic particles. So, even though the self-healing of asphalt mixtures has been widely addressed in experimental terms over the years, there is a lack of research aimed at modelling this phenomenon, especially with the purpose of optimizing the use of metal particles through the valorization of industrial by-products. As such, the goal of this study was to develop a statistical methodology to model the healing capacity of asphalt concrete mixtures (AC-16) from the characteristics of the metal particles added and the time and intensity used for magnetic induction. Five metal particles were used as heating inductors, including four types of industrial by-products aimed at transforming waste products into material for use in the road sector. The proposed approach consisted of a combination of cluster algorithms, multiple regression analysis and response optimization, which were applied to model laboratory data obtained after testing asphalt concrete mixtures containing these inductors. The results proved the accuracy of the statistical methods used to reproduce the experimental behaviour of the asphalt mixtures, which enabled the authors to determine the optimal amount of industrial by-products and time needed to make the self-healing process as efficient as possible.

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“…If heating needs to be applied to induce healing, the healing process can be monitored using ultrasound. Franesqui et al studied self‐healing of surface cracks in bituminous mixtures after microwave heating was investigated. The ultrasound technique was useful for tracking the crack depth over time, the assessment of the crack depth evolution over time and the effectiveness of the self‐healing approach.…”

Section: Healing Efficiencymentioning

confidence: 99%

“…Afterward, subsequent monitoring was done. Ultrasonic testing showed that healing began at the crack tip and spread toward the surface …”

Section: Healing Efficiencymentioning

confidence: 99%

Validation of Self‐Healing Properties of Construction Materials through Nondestructive and Minimal Invasive Testing

Snoeck

Malm

Cnudde

et al. 2018

Adv Materials Inter

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When studying the self‐healing properties of construction materials, a plethora of destructive and nondestructive testing (NDT) techniques can be used. In this review, the applicability of different nondestructive test methods is discussed in detail. The methods can be categorized whether they are used to study the encapsulation and/or protection mechanism of the healing agent, the sequestered healing agent itself, the distribution of healing agents, the trigger mechanism for healing, the healing efficiency, or healing performance. Based on this categorization, nondestructive techniques found in literature are discussed. In this way, a robust understanding of the different techniques can be used for future research on self‐healing construction materials.

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Top-down cracking self-healing of asphalt pavements with steel filler from industrial waste applying microwaves

Cited by 61 publications

References 23 publications

Self-healing properties of recycled asphalt mixtures containing metal waste: An approach through microwave radiation heating

Self-healing properties of recycled asphalt mixtures containing metal waste: An approach through microwave radiation heating

Optimizing the valorization of industrial by-products for the induction healing of asphalt mixtures

Validation of Self‐Healing Properties of Construction Materials through Nondestructive and Minimal Invasive Testing

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