Mechanical Properties of Asphalt and Asphalt Mixtures: 2nd Edition

A special issue of Buildings (ISSN 2075-5309). This special issue belongs to the section "Building Materials, and Repair & Renovation".

Deadline for manuscript submissions: 31 December 2025 | Viewed by 369

Special Issue Editors


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Guest Editor
School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, China
Interests: asphalt; pavement engineering
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Guest Editor
School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China
Interests: road engineering; asphalt pavement; durable pavement; rheological characteristic; smart road; energy conservation; vehicle exhaust purification
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
School of Highway, Chang’an University, Xi’an 710064, China
Interests: pavement material; asphalt pavement; fatigue damage; meso-scale simulation; micro scale characteristic; discrete element method; mesoscopic cracking
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
National & Local Joint Engineering Research Center of Transportation and Civil Engineering Materials, Chongqing Jiaotong University, Chongqing 400074, China
Interests: green pavement materials; solid waste recycling; multi-scale evaluation of materials

Special Issue Information

Dear Colleagues,

Asphalt mixtures are essential materials in pavement construction and form the backbone of highway infrastructure. The mechanical properties of the asphalt mixtures directly influence the performance and durability of pavement structures. These properties are typically analyzed through a combination of experimental testing and numerical simulation techniques. By predicting the service behavior of asphalt pavements, we can identify effective strategies for optimizing their construction, management, and maintenance.

In recent years, significant progress has been made in developing advanced constitutive models for asphalt base materials, understanding the multi-scale mechanical behavior of asphalt mixtures, and improving cross-scale prediction methods. To showcase the latest research in this field, the journal Buildings is calling for papers for a Special Issue focused on the "Mechanical Properties of Asphalt and Asphalt Mixtures: 2nd Edition". We welcome original research and review articles on the following topics:

  • Constitutive models of asphalt base materials under multi-physical field coupling;
  • Inversion of mechanical parameters and prediction of service performance for asphalt pavements;
  • Rheological behavior of asphalt materials;
  • Microstructural and mechanical behavior of asphalt and asphalt mixtures;
  • Testing methods for the physical and mechanical properties of asphalt materials at various scales;
  • Applications of big data and artificial intelligence in pavement design and evaluation;
  • Smart pavement structures and materials;
  • Nondestructive testing techniques for assessing pavement performance;
  • Evaluation and use of technologies for recycled asphalt pavement.

Dr. Guoqiang Liu
Dr. Yanqiu Bi
Dr. Xiaokang Zhao
Dr. Rui Li
Guest Editors

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Keywords

  • asphalt binder
  • asphalt mixture
  • recycled asphalt pavement
  • high-modulus asphalt concrete
  • discrete element method
  • finite element method
  • rheological characteristics
  • durable pavement
  • energy conservation
  • vehicle exhaust purification

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Published Papers (1 paper)

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Research

14 pages, 1413 KiB  
Article
Evaluation of Regeneration Effects of Different Rejuvenators on Aged Asphalt
by Jian Wang, Song Xu, Jiang Chen, Weibin Xie, Xuehong Cheng, Jiahao Wang and Yunbin Ke
Buildings 2025, 15(7), 1171; https://doi.org/10.3390/buildings15071171 - 2 Apr 2025
Viewed by 195
Abstract
As a polymer-like organic material, asphalt often undergoes aging during service life. Regeneration technology is the main approach to achieve its recycling; therefore, the rejuvenator is an important factor affecting the regeneration effect. In order to evaluate the rejuvenation effects of rejuvenators on [...] Read more.
As a polymer-like organic material, asphalt often undergoes aging during service life. Regeneration technology is the main approach to achieve its recycling; therefore, the rejuvenator is an important factor affecting the regeneration effect. In order to evaluate the rejuvenation effects of rejuvenators on aged asphalt, fluid catalytic cracking (FCC) slurry and a penetrant containing epoxy functional groups were used to prepare conventional rejuvenators (CR1 and CR2) and a penetrable rejuvenator (PR). The impact of the penetrant on the physical properties of the rejuvenator was investigated, and the rejuvenation effects of different rejuvenators on mild and severe aged asphalt were evaluated through physical and rheological tests. Results show that the penetrant effectively lubricates the movement of rejuvenator molecules, improving the high temperature stability and aging resistance of the rejuvenator. CR1 and CR2 are more suitable for mild aged asphalt, as mild aging has a relatively minimal effect on the chemical composition and colloidal structure of asphalt. At a 25% dosage, the PR significantly restores the physical properties of severe aged asphalt, while CR1 and CR2 still fail to meet specifications. The PR is more effective for severe aged asphalt because it not only dissolves and disperses asphaltenes but also weakens interactions between asphaltenes, which facilitates a more effective restoration of the colloidal structure and significantly enhances the rejuvenation effect. The findings of this study provide insights into the design of penetrable rejuvenators for a more efficient utilization of reclaimed asphalt pavement (RAP). Full article
(This article belongs to the Special Issue Mechanical Properties of Asphalt and Asphalt Mixtures: 2nd Edition)
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