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Advances in Material Characterization and Pavement Modeling (2nd Edition)

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Construction and Building Materials".

Deadline for manuscript submissions: 20 December 2026 | Viewed by 848

Special Issue Editors

Department of Civil and Environmental Engineering, National University of Singapore, Singapore 117576, Singapore
Interests: pavement engineering; NDT; pavement performance evaluation
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Section of Pavement Engineering, Faculty of Civil Engineering and Geosciences, Delft University of Technology, Stevinweg 1, 2628 CN Delft, The Netherlands
Interests: multi-physics and multi-scale characterization and modeling of asphalt materials; sustainable asphalt recycling technologies; pavement structural performance monitoring and degradation modeling; road material passport and waste management; multi-cycle and multicriteria decision-making
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Guest Editor
Department of Civil and Environment Engineering, National University of Singapore, Singapore 117576, Singapore
Interests: evaluation of recycled materials for asphalt pavement; cold recycling technology and mixture design methods
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Guest Editor
School of Infrastructure Engineering, Dalian University of Technology, Dalian 16024, China
Interests: in situ tests or nondestructive tests for asphalt mixtures; ecological road engineering technologies; green intelligent road materials
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School of Infrastructure Engineering, Dalian University of Technology, Dalian 116024, China
Interests: data-driven analysis and design of road infrastructure; multi-physics and multi-scale numerical simulation of pavements; asphalt recycling and novel modified binder development
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Special Issue Information

Dear Colleagues,

Roads are one of the most critical components of transportation infrastructure, forming the backbone of modern mobility. Accurate characterization of the mechanical and durability properties and in-service performance of paving materials is fundamental to pavement design and analysis. At the same time, precise modeling and simulation of pavement structures under complex loading conditions and environmental influences play a vital role in guiding pavement design and evaluation.

With the advancement in technology, increasingly sophisticated and accurate material characterization models have been developed. Computational capabilities have also evolved, enabling the simulation and analysis of pavement structures under complex loading scenarios and environmental influences. Research on material characterization and pavement modeling requires more platforms to showcase these findings, thereby contributing to the development of the pavement industry.

This Special Issue, “Advances in Material Characterization and Pavement Modeling (2nd Edition)”, aims to bring together the latest research and developments in material characterization and pavement modeling. We welcome contributions on a wide range of topics, including, but not limited to, the following:

  • Mechanical and durability properties of paving materials;
  • Numerical modeling and simulation techniques for pavement structures;
  • Long-term performance evaluation of recycled or green paving materials;
  • Multi-scale and multi-physics modeling approaches;
  • Insights into fatigue, cracking, and other failure mechanisms in pavement materials;
  • Data-driven and machine learning approaches in material characterization and pavement analysis.

This Special Issue serves as a platform for researchers and practitioners to share new insights, methodologies, and applications that advance our understanding and capabilities in the field of material characterization and pavement modeling. We look forward to receiving your contributions.

Dr. Guozhi Fu
Dr. Yi Li
Dr. Zhanchuang Han
Dr. Mingchen Li
Dr. Yiren Sun
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • material characterization
  • pavement modeling
  • recycled paving materials
  • long-term performance evaluation
  • sustainability
  • environmental efficiency
  • airport runways and highway structures

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Published Papers (2 papers)

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Research

20 pages, 24465 KB  
Article
Molecular Dynamics Investigation of Thickness Effects on Tensile Fracture and Component Migration in Asphalt Films
by Ruoyu Wang, Yanqing Zhao, Guozhi Fu, Yujing Wang, Qi Sun and Yin Zhao
Materials 2026, 19(9), 1801; https://doi.org/10.3390/ma19091801 - 28 Apr 2026
Viewed by 225
Abstract
Tensile fracture in asphalt involves complex mechanical responses and component migration. This study employs molecular dynamics (MD) simulations with the COPMASS II force field to investigate water intrusion at the asphalt–aggregate interface and subsequent tensile cracking at the nanoscale. To evaluate moisture damage, [...] Read more.
Tensile fracture in asphalt involves complex mechanical responses and component migration. This study employs molecular dynamics (MD) simulations with the COPMASS II force field to investigate water intrusion at the asphalt–aggregate interface and subsequent tensile cracking at the nanoscale. To evaluate moisture damage, a ternary interface model was constructed using a specific distribution of water molecules at a target density. Results indicate that thickness significantly enhances moisture resistance; specifically, the asphalt film in the thinnest model (AS1) was penetrated by water molecules, leading to localized interfacial failure. Further uniaxial tensile simulations at a loading rate of 0.01 Å/psreveal that as film thickness increases (AS1 to AS4), the peak stress rises from 103.2 to 113.8 MPa, and the fracture energy increases from 136 to 747 kcal/mol. Based on the density redistribution of SARA fractions, component migration is divided into three stages: structural relaxation, resin-driven de-peptization, and polar component re-aggregation. Finally, the Asphaltene Index (IA) is proposed as a predictive indicator, showing that cracks consistently initiate in regions with minimum IA values. These findings provide quantitative insights into the molecular mechanisms underlying asphalt durability. Full article
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21 pages, 18523 KB  
Article
Characterization of Binder Interactions in Recycled Hot-Mix Asphalt Mixtures: Blending and Diffusion of Aged and Virgin Asphalt During Mixing and Stockpiling
by Yuquan Yao, Shiji Cao, Jiangang Yang, Jie Gao, Jiayun Xu and Jiayu Liu
Materials 2026, 19(6), 1214; https://doi.org/10.3390/ma19061214 - 19 Mar 2026
Viewed by 365
Abstract
The performance of recycled hot-mix asphalt mixtures (RHAM) is strongly governed by the extent and uniformity of interactions between the aged binder in reclaimed asphalt pavement (RAP) and the virgin binder. However, in current engineering practice, it remains difficult to accurately evaluate the [...] Read more.
The performance of recycled hot-mix asphalt mixtures (RHAM) is strongly governed by the extent and uniformity of interactions between the aged binder in reclaimed asphalt pavement (RAP) and the virgin binder. However, in current engineering practice, it remains difficult to accurately evaluate the blending degree of aged and virgin asphalt during RHAM production, where the blending degree refers to the extent and uniformity of binder interaction during hot mixing. Moreover, influenced by various construction-related factors, the uniformity of interfacial diffusion between the two asphalt layers is also hard to control, which compromises the durability of RHAM. To address these issues, fluorescence microscopy was used to quantitatively characterize the blending behavior of aged and virgin asphalt, and Fourier transform infrared spectroscopy (FTIR) was employed to investigate the interfacial diffusion process and its evolution under time-temperature coupling conditions from plant production to field paving. The results indicate that, owing to the fluorescent characteristics of the Styrene-butadiene-styrene block copolymer (SBS) modifier in polymer-modified asphalt, the blending behavior during hot mixing can be quantitatively characterized by the fluorescent area and its areal proportion, providing a rapid solution for quantitative evaluation during RHAM production. Increasing the preheating temperature of RAP, extending mixing time, raising mixing temperature, and adopting Mixing Sequence I reduced the proportion of fluorescent area, suggesting improved blending between aged and virgin asphalt. After blending, the interfacial diffusion between aged and virgin asphalt occurs within the RHAM; the uniformity of this diffusion becomes more pronounced as the elapsed duration from production to paving increases. Nevertheless, excessively long duration may induce secondary aging of the blended binder. Accordingly, the duration is recommended to be controlled at approximately 90 min and should not exceed 180 min. By elucidating the blending and diffusion behaviors of aged and virgin asphalt, this study provides practical guidance for contractors in controlling production-process parameters for RHAM. Full article
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