Mechanical Properties and Surface Engineering for Pavement Materials and Asphalt Mixtures

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Surface Characterization, Deposition and Modification".

Deadline for manuscript submissions: 30 June 2026 | Viewed by 624

Special Issue Editors

Special Issue Information

Dear Colleagues,

The performance and longevity of road pavements are critically dependent on the mechanical behavior and surface characteristics of the materials used in both construction and maintenance. In recent years, the field of pavement engineering has witnessed rapid developments in novel materials, modified binders, functional additives, and advanced structural designs. These innovations aim to improve rutting resistance, fatigue life, cracking tolerance, moisture sensitivity, and low-temperature performance, while also addressing sustainability concerns by incorporating recycled materials and industrial by-products.

This Special Issue of Coatings is dedicated to showcasing the latest advances in mechanical performance and surface engineering related to pavement materials and asphalt mixtures. It will explore how innovations in materials science and surface treatment technologies are enabling more durable, environmentally friendly, and smart pavements. Studies focusing on the microstructural evolution, surface characteristics, and mechanical response of modified asphalt binders, recycled aggregate systems, and multilayer pavement structures are especially welcome.

This Special Issue aims to provide a platform for researchers, engineers, and practitioners to disseminate their latest findings, promote academic exchange, and contribute to the continuous improvement of road infrastructure worldwide.

The scope of this Special Issue includes, but is not limited to, the following topics:

  • High-performance asphalt mixtures and binder modification;
  • Surface treatments and functional coatings for pavements;
  • Recycling technologies and reclaimed materials in road construction;
  • Interface behavior and adhesion between asphalt, aggregates, and additives;
  • Microstructure–property relationships in asphalt composites;
  • Mechanical modeling and characterization techniques for pavement systems;
  • Durability enhancement strategies for extreme environmental conditions;
  • Smart pavement materials and multifunctional surface layers.

We look forward to receiving your contributions.

Dr. Changjiang Kou
Dr. Di Wang
Guest Editors

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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. Coatings is an international peer-reviewed open access monthly journal published by MDPI.

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Keywords

  • functional coatings for pavements
  • modification of asphalt materials
  • mechanical properties of asphalt materials
  • recycled pavement materials
  • durability and sustainability of pavement structures

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Published Papers (1 paper)

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Research

24 pages, 2743 KB  
Article
Pavement Performance and Mechanism of Asphalt Mixtures Reinforced with Different Diameters of Basalt Fibers for the Surface Layer
by Changjiang Kou, Shuxiang Xu, Jiyang Sun, Di Wang, Zikai Chen and Aihong Kang
Coatings 2025, 15(10), 1153; https://doi.org/10.3390/coatings15101153 - 3 Oct 2025
Viewed by 396
Abstract
The diameter of basalt fiber influences the reinforcement of basalt fiber asphalt mixtures. However, the performance evaluation and mechanistic analysis of asphalt mixtures reinforced with varying fiber diameters have been insufficiently studied. AC-13 asphalt mixtures were designed and prepared with four different fiber [...] Read more.
The diameter of basalt fiber influences the reinforcement of basalt fiber asphalt mixtures. However, the performance evaluation and mechanistic analysis of asphalt mixtures reinforced with varying fiber diameters have been insufficiently studied. AC-13 asphalt mixtures were designed and prepared with four different fiber diameters 7 μm, 16 μm, 25 μm, and an equal-mass mixture of these. The reinforcement mechanisms were analyzed using the equal cross-section theory. Results indicate that the incorporation of 7 μm and mixed-diameter basalt fibers significantly enhances the pavement performance of the asphalt mixtures compared to the control group without fibers. Additionally, it is shown by triaxial shear tests that the cohesion of the asphalt mixtures with the aforementioned two diameters of basalt fibers is strengthened by 61.5% and 55.5%, respectively. The dynamic modulus values in the high-frequency range are found to be positively correlated with fiber diameters. Since the fiber mass content and modulus were held constant, a decrease in diameter was observed to lead to an increase in fiber quantity. This is manifested by a multiple-fold increase in the total transformed cross-section (TTCR) index for 7 μm fiber asphalt mixtures, as described by the equal cross-section theory. It is concluded that the performance improvement of the asphalt mixtures can be further enhanced under the same fiber content and cost conditions by optimizing diameter parameters. Full article
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