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Sustainable Materials and Structures Used in Pavement Engineering (2nd Edition)
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Sustainable Materials and Structures Used in Pavement Engineering (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: 31 July 2025 | Viewed by 2819

Special Issue Editors

Dr. Fucheng Guo

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Guest Editor
School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
Interests: performance characterization of rubber asphalt using molecular dynamics simulation; tire-pavement contact and its friction mechanism; adhesion and debonding behaviors between asphalt binder and aggregate; sustainable materials used in asphalt pavement
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Dr. Augusto Cannone Falchetto

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Guest Editor
Department of Civil, Environmental, and Architectural Engineering, University of Padua, Italy
Interests: asphalt material; size effect; low-temperature characterization
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Dr. Bochao Zhou

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Guest Editor
Department of Road & Railway Engineering, Beijing University of Technology, Beijing 100124, China
Interests: energy efficiency improvement and structural optimization of solar pavement; efficient purification technology for on-road vehicle exhaust; emission characteristics and inhibition technologies of asphalt VOCs.
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Dr. Wentong Wang

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Guest Editor
Faculty of Transportation, Shandong University of Science and Technology, Qingdao 266590, China
Interests: green energy conversion pavement technology; solid recycling materials used in asphalt pavement; sustainability of road infrastructures; technical testing to address performance properties; composition of asphalt mixtures considering various additives and re-using reclaimed asphalt
Special Issues, Collections and Topics in MDPI journals
Dr. Di Wang

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Guest Editor
Department of Civil Engineering, University of Ottawa, Ottawa, ON K1N 6N5, Canada
Interests: roads in cold regions; durable and sustainable paving materials; pavement structure and design
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Sustainable materials and structures have been extensively employed in asphalt pavements in order to mitigate the resource crisis and achieve carbon neutrality. These include, but are not limited to, warm/cold mix asphalt (WMA/CMA), reclaimed asphalt pavement (RAP), waste materials utilized in asphalt mixtures, polyurethane pavements, and self-cleaning, self-healing, and self-powered materials. Such materials and structures can partially save nonrenewable resources and improve the road environment. However, there remain several knowledge gaps to overcome. These include, for example, the compatibility between new and old materials and structures, the long-term performance of new materials and structures, and the cost performance of new materials and structures. These limitations hinder the mega-scale application of sustainable materials and structures in asphalt pavement constructions.

This Special Issue aims to address various subjects related to the sustainable materials and structures utilized in pavement engineering. Research that investigates and applies sustainable materials, structures, and corresponding technologies is welcome. Green and smart technologies and assessment methods for sustainable development are also topics of interest. Literature reviews and state-of-the-art articles are highly appreciated.

Dr. Fucheng Guo
Dr. Augusto Cannone Falchetto
Dr. Bochao Zhou
Dr. Wentong Wang
Dr. Di Wang
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 100 words) can be sent to the Editorial Office for announcement on this website.

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

  • recycled pavement materials and structures
  • low-carbon or low-emission materials and structures
  • sustainable structures based on recycled materials
  • functional pavement materials and structures
  • high-performance pavement materials and structures for long-term service
  • green construction, maintenance, and management technologies
  • smart monitoring technologies and evaluation methods
  • life-cycle assessment after using sustainable materials and structures

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Related Special Issue

Published Papers (4 papers)

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Research

25 pages, 6761 KiB  
Article
Laboratory Study on the Stiffening Phenomena Caused by Aging and by the Addition of Kraft Lignin at Low Dosages Measured by Physico-Chemical and Rheological Tests on a Soft Bitumen
by Gabriel Orozco, Sébastien Lamothe, Wesam Al-Falahat, Jean-Claude Carret and Alan Carter
Materials 2025, 18(10), 2209; https://doi.org/10.3390/ma18102209 - 10 May 2025
Viewed by 287
Abstract
This study investigates the stiffening phenomena caused by aging and low-dosage Kraft lignin addition on a soft bitumen (PG58S–28)- used in cold climate regions. Through a combination of physico-chemical and rheological analyses, including Fourier-transform infrared spectroscopy (FTIR), Brookfield rheometer viscosity (BRV), dynamic shear [...] Read more.
This study investigates the stiffening phenomena caused by aging and low-dosage Kraft lignin addition on a soft bitumen (PG58S–28)- used in cold climate regions. Through a combination of physico-chemical and rheological analyses, including Fourier-transform infrared spectroscopy (FTIR), Brookfield rheometer viscosity (BRV), dynamic shear rheometer (DSR), multiple stress creep recovery (MSCR), bending beam rheometer (BBR), and complex shear modulus (G*) tests, the impacts of lignin modification and thermo-oxidative aging are evaluated. In particular, the anti-aging potential of lignin is scrutinized. The results indicate that while the carbonyl index effectively tracks bitumen aging, the sulphoxide index is less reliable due to high initial S=O bond content in Kraft lignin and greater repeatability variability. Standard rheological tests (BRV, DSR, MSCR, and BBR) show that long-term aging significantly increases bitumen stiffness, while lignin modification leads to a moderate stiffening effect but does not exhibit any noticeable anti-aging properties. The G* analysis confirms that aging strongly influences bitumen rigidity, particularly at low and intermediate equivalent frequencies, while lignin acts similarly to an inert filler, with minimal effects on linear viscoelastic (LVE) behaviour. Overall, the study concludes that the addition of Kraft lignin at low dosage does not alter the fundamental aging mechanisms of bitumen, nor does it provide significant antioxidant benefits. These findings contribute to the ongoing discussion on bio-based bitumen modifiers and their role in sustainable pavement materials. Full article
(This article belongs to the Special Issue Sustainable Materials and Structures Used in Pavement Engineering (2nd Edition))
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19 pages, 5657 KiB  
Article
A Study on the Environmental Performance of an Asphalt Mixture Modified with Directly Added Waste Plastic
by Liting Yu, Haoyi Kang, Rui Li, Jianzhong Pei and Yizhi Du
Materials 2025, 18(5), 1168; https://doi.org/10.3390/ma18051168 - 6 Mar 2025
Viewed by 668
Abstract
The environmental pollution caused by waste plastics has raised widespread concern within the global academic community. The use of waste plastic in road construction is seen as a future trend for road materials, offering benefits such as energy conservation, pollution reduction, and the [...] Read more.
The environmental pollution caused by waste plastics has raised widespread concern within the global academic community. The use of waste plastic in road construction is seen as a future trend for road materials, offering benefits such as energy conservation, pollution reduction, and the enhanced high-temperature performance of asphalt mixtures. However, conventional testing methods have limited the scope of performance measurements for modified asphalt mixtures, and fewer studies have explored the pavement performance of such mixtures. This study evaluated the environmental performance of asphalt mixtures modified with waste plastics. A series of experiments, including rutting tests, low-temperature bending tests, water stability tests, and aging tests, demonstrated that the use of waste plastic-modified asphalt significantly improved high-temperature performance. Notably, with transition dispersants, the rutting resistance improved by 24.5%, and the low-temperature bending strength increased by 15.8%, demonstrating excellent anti-aging properties. Statistical analysis indicated that waste plastic-modified asphalt has superior high-temperature stability and good low-temperature crack resistance. Full article
(This article belongs to the Special Issue Sustainable Materials and Structures Used in Pavement Engineering (2nd Edition))
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18 pages, 4299 KiB  
Article
Investigation on the Factors Affecting the Exhaust Degradation Performance of Porous Pavement Mixtures with Nano-TiO2 Photocatalysts
by Wenke Yan, Congwei Bi, Chuan Lu, Jikai Fu, Mulian Zheng, Qiang Ding and Jiasheng Liu
Materials 2025, 18(5), 1139; https://doi.org/10.3390/ma18051139 - 3 Mar 2025
Viewed by 570
Abstract
The substantial voids of porous pavement materials permit light and exhaust pollutants to infiltrate to a considerable depth. Consequently, utilizing porous mixtures as carriers for photocatalytic materials enables greater exposure to an environment conducive to the exhaust degradation reaction. This study employed porous [...] Read more.
The substantial voids of porous pavement materials permit light and exhaust pollutants to infiltrate to a considerable depth. Consequently, utilizing porous mixtures as carriers for photocatalytic materials enables greater exposure to an environment conducive to the exhaust degradation reaction. This study employed porous asphalt mixtures and porous cement concrete as carriers for photocatalytic pavements. Various amounts of TiO2 were incorporated as photocatalysts to produce eco-friendly pavement materials with exhaust degradation capability. Based on a self-developed apparatus and methodology, its exhaust degradation performance was evaluated under different preparation conditions and pavement structures. The influences of void ratio, photocatalyst dosage, pavement type, and pavement thickness on the exhaust degradation function were examined. The degradation rates of NO and CO among the four monitored pollutants were observed to follow a three-stage pattern of “slow–fast–steady”, while the degradation rates of NO2 and HC followed a “fast–slow–steady” pattern. Increasing the void ratio and the photocatalyst dosage yielded similar effects on exhaust degradation efficacy, enhancing the degradation rate and reducing the time required to reach equilibrium. The increase in the void ratio of porous asphalt mixtures and porous cement concrete reduced the time required to reach equilibrium by an average of 4.4 and 2.3 min for the four pollutants monitored, respectively. Increasing the dosage of photocatalytic material by 2 kg/m3 increased NO degradation by an average of 1.5% and reduced the time required to reach equilibrium by an average of 0.8 min. The degradation rate of porous cement concrete in the first reaction stage was faster than that of porous asphalt mixtures, and the time required to reach equilibrium state increased by 2 min compared to that of porous asphalt mixture. And the impact of specimen thickness on exhaust degradation performance was minimal. Full article
(This article belongs to the Special Issue Sustainable Materials and Structures Used in Pavement Engineering (2nd Edition))
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23 pages, 15251 KiB  
Article
Strength Properties and Microscopic Experimental Study of Modified Sawdust Based on Solid Waste Synergistic Utilization
by Yu Cheng, Na Jiang, Wentong Wang and Lu Jin
Materials 2024, 17(23), 5808; https://doi.org/10.3390/ma17235808 - 27 Nov 2024
Viewed by 732
Abstract
Sawdust is the cutting tailings produced during stone processing, which is difficult to deal with and has a huge stock. Therefore, it is particularly important to enhance the comprehensive utilization of sawdust. The aim of this study was to synergistically utilize sawdust with [...] Read more.
Sawdust is the cutting tailings produced during stone processing, which is difficult to deal with and has a huge stock. Therefore, it is particularly important to enhance the comprehensive utilization of sawdust. The aim of this study was to synergistically utilize sawdust with other industrial wastes (fly ash, silt, and red mud), add cement as a curing agent to prepare modified sawdust, and analyze its performance through an unconfined compressive strength test, dry and wet cycle tests, and SEM. The results showed that the compressive strength of modified sawdust with different solid waste dosages was more than 2.5 MPa after 7 days of maintenance, the strength was basically more than 4 MPa after 28 days of maintenance, and 8% solid waste dosage had the best effect. In addition, the modified saw mud with 8% fly-ash dosage had superior wet and dry cycle resistance, with expansion and shrinkage lower than 0.5% and good stability. This study provides a new idea for the synergistic utilization of saw mud and other solid wastes, and it is recommended to consider 8% solid waste dosage to optimize the performance in practical applications. Full article
(This article belongs to the Special Issue Sustainable Materials and Structures Used in Pavement Engineering (2nd Edition))
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