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A Methodological Review on Development of Crack Healing Technologies of Asphalt Pavement

Author

Listed:
  • Lei Zhang

    (Department of Civil and Environmental Engineering, Norwegian University of Science and Technology, Høgskoleringen 7A, 7491 Trondheim, Trøndelag, Norway)

  • Inge Hoff

    (Department of Civil and Environmental Engineering, Norwegian University of Science and Technology, Høgskoleringen 7A, 7491 Trondheim, Trøndelag, Norway)

  • Xuemei Zhang

    (Department of Civil and Environmental Engineering, Norwegian University of Science and Technology, Høgskoleringen 7A, 7491 Trondheim, Trøndelag, Norway)

  • Jianan Liu

    (Department of Civil and Environmental Engineering, Norwegian University of Science and Technology, Høgskoleringen 7A, 7491 Trondheim, Trøndelag, Norway
    School of Materials Science and Engineering, Chang’an University, Xi’an 710061, China)

  • Chao Yang

    (State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, China)

  • Fusong Wang

    (School of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China)

Abstract

Crack healing has been a key area of asphalt pavement research. In this review, different crack-healing theories and crack-healing evaluation methods in bitumen and asphalt mixtures are summarized and presented. Then different crack healing technologies have highlighted the problems and solutions associated with their implementation. Detailly, traditional technologies (hot pouring and fog seal) are introduced. They mainly fill cracks from the outside, which can effectively prevent further damage to the asphalt pavement, when the cracks have generally developed to the middle and late stages of practical engineering. Their extension of the life of the asphalt pavement is relatively limited. Energy supply technologies (induction and microwave heating) have demonstrated significant efficacy in enhancing the crack healing capability of asphalt pavement, particularly in microcracks. Now, Extensive laboratory testing and some field test sections have been conducted and they are waiting for the promotion from the industry. The agents encapsulated technologies (Saturated porous aggregates encapsulate rejuvenators, Core-shell polymeric microcapsules, Ca-alginate capsule, Hollow fibers and Compartment fibers) not only heal cracks but rejuvenate the aged asphalt pavement. In order to promote industrial application, more field test sections and large industrial mixing and compaction equipment applications need to be implemented. Finally, some other potential crack healing techniques (coupling application, electrical conductivity, 3D printing, and modifications) are also mentioned.

Suggested Citation

  • Lei Zhang & Inge Hoff & Xuemei Zhang & Jianan Liu & Chao Yang & Fusong Wang, 2023. "A Methodological Review on Development of Crack Healing Technologies of Asphalt Pavement," Sustainability, MDPI, vol. 15(12), pages 1-21, June.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:12:p:9659-:d:1172663
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    References listed on IDEAS

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    1. Wang, Fusong & Xie, Jun & Wu, Shaopeng & Li, Jiashuo & Barbieri, Diego Maria & Zhang, Lei, 2021. "Life cycle energy consumption by roads and associated interpretative analysis of sustainable policies," Renewable and Sustainable Energy Reviews, Elsevier, vol. 141(C).
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