Influence of erosion factors (time, depths and environment) on induction heating asphalt concrete and its mechanism

Xu, Haiqin; Wu, Shaopeng; Zou, Yingxue; Song, Jiangkai

doi:10.1016/j.jclepro.2022.132521

Cited by 21 publications

(5 citation statements)

References 50 publications

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“…However, it also has problems, such as nonuniform heating, change in void distribution, and asphalt outflow [98]. Considering the effects of time, erosion environment, and heating depth on the healing efficiency of induction heating, Xu et al [99] used a machine generating electromagnetism to heat asphalt concrete to different degrees, and 36 sets of specimens (4 environments × 3 times × 3 heating depths) were used for orthogonal tests. The healing process and loading is shown in Figure 9.…”

Section: Induction Heatingmentioning

confidence: 99%

Recent Advances of Self-Healing Materials for Civil Engineering: Models and Simulations

Liao,

Zhang,

et al. 2024

Buildings

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Empowering materials with self-healing capabilities is an attractive approach for sustainable development. This strategy involves using different methods to automatically heal microcracks and damages that occur during the service life of materials or structures. Initially, this study begins with an in-depth exploration of self-healing characteristics found in materials such as concrete, asphalt, and polymers. The differences and comparative merits and demerits between autogenous (intrinsic) healing and autonomic (extrinsic) healing are discussed, and it is found that intrinsic healing is more promising. Subsequently, the study explores how models are applied to assess self-healing efficiency. The results indicate that time and temperature have significant impacts on the self-healing process. However, there is a scarcity of research exploring the effects of load factors during service life. Computational simulation methodologies for microcapsules and asphalt within self-healing materials are investigated. Multiscale characterization and machine learning can further elucidate the healing mechanisms and facilitate the establishment of computational models. This study endeavors to realize the maximum capabilities of self-healing materials, paving the way for the design of sustainable and more effective self-repairing materials for various applications.

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Section: Induction Heatingmentioning

confidence: 99%

Recent Advances of Self-Healing Materials for Civil Engineering: Models and Simulations

Liao,

Zhang,

et al. 2024

Buildings

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“…Bituminous pavement is used in the natural environment, subjected to the physical and chemical action of heat, light, oxygen, and water and the load of vehicles [1,2]. Thus, the light components of bitumen are easy to volatilize, oxidize, and dissolve, whereby the technical indicators and the rheological properties can deteriorate [3,4]. The properties of bitumen, such as adhesion and fatigue resistance, deteriorate after aging; thus, the water damage resistance and crack resistance of the bitumen mixture are weakened [5,6].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Physicochemical Properties and Antiaging Properties of Bitumen Mastic Modified by Layered Double Hydroxides

et al. 2023

Self Cite

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Layered double hydroxides (LDHs) can shield polymeric materials from UV light, which allows reducing material aging and erosion damage of bituminous pavement under physical and chemical action. In this study, the physicochemical properties, aging resistance, and erosion resistance to the aqueous solution of LDHs modified bitumen mastic (BM) were characterized by Fourier-transform infrared spectroscopy, basic physical tests, viscosity tests, a dynamic shear rheometer, and a bending beam rheometer. The results show that few chemical reactions occurred between LDHs and BM, indicating that a physical mechanism underlay the modification of BM by LDHs. Moreover, LDHs could increase the flow activation energy of BM by 0.12%, increase the high failure temperature from 69.07 °C to 71.07 °C, and decrease the low failure temperature from −10.50 °C to −12.39 °C. Therefore, LDHs could slightly reduce the temperature sensitivity of BM, while slightly enhancing the high and low-temperature rheological properties of BM. Compared with short-term aging and long-term aging, LDHs could significantly improve the UV aging resistance of BM. The above results are consistent with previous studies of LDHs-modified bitumen. Furthermore, water and pH 3 acidic solutions had the greatest degree of erosion to BM, and LDHs could improve the resistance to aqueous solutions. Overall, this study can help to investigate the effects of various environmental factors on the performance of LDHs modified bitumen pavements during long-term use.

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“…In contemporary times, several distinctive remedial methodologies have been formulated to expedite the recuperative mechanism of asphalt substances, primarily encompassing thermal induction healing [19][20][21][22] and rejuvenator-induced healing [23][24][25][26][27][28]. The thermal healing technique involves two main methods: electromagnetic induction heating and microwave-induced heating.…”

Section: Introductionmentioning

confidence: 99%

Healing Evaluation of Asphalt Mixtures with Polymer Capsules Containing Rejuvenator under Different Water Solutions

Li,

Wang,

Wan

et al. 2023

Sustainability

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Polymer Ca-alginate capsules with rejuvenator bring a high healing level for asphalt concrete under dry healing environments; however, the healing levels of bituminous mixtures containing capsules under water healing conditions are still unknown. In view of this, this study aimed at exploring the healing levels of asphalt concrete containing polymer capsules under various solution healing conditions following cyclic loads. This study involved the preparation of capsules, followed by the evaluation of their morphological characteristics, resilience to compression, thermal endurance, and rejuvenator content. The assessment of the healing properties of asphalt concrete utilizing capsules was conducted through a fracture–heal–refracture examination. This study conducted Fourier transform infrared spectrum experiments to determine the rejuvenator release ratio of capsules under dry conditions and the remaining rejuvenator content in extracted bituminous binder from capsule–asphalt concrete after solution treatment. Meanwhile, a dynamic shear rheometer was utilized to investigate the rheological characteristics of asphalt binder. Results revealed that the healing ratios of capsule–asphalt concrete beams under a dry healing environment were significantly higher than that of beams under various solution healing conditions, and the alkali solution has the worst effect on the improvement in healing ratio. The coupled impact of moisture intrusion and ion erosion resulted in an enhancement of complex modulus of asphalt binder while concurrently reducing its phase angle. Consequently, the restorative capacity of the asphalt binder was weakened.

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Influence of erosion factors (time, depths and environment) on induction heating asphalt concrete and its mechanism

Cited by 21 publications

References 50 publications

Recent Advances of Self-Healing Materials for Civil Engineering: Models and Simulations

Recent Advances of Self-Healing Materials for Civil Engineering: Models and Simulations

Evaluation of the Physicochemical Properties and Antiaging Properties of Bitumen Mastic Modified by Layered Double Hydroxides

Healing Evaluation of Asphalt Mixtures with Polymer Capsules Containing Rejuvenator under Different Water Solutions

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