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Innovative Materials and Technologies for Road Pavements
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Innovative Materials and Technologies for Road Pavements

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

Deadline for manuscript submissions: 31 December 2024 | Viewed by 2115

Special Issue Editors

Dr. Giovanni Giacomello

E-Mail Website
Guest Editor
Department of Civil, Environmental and Architectural Engineering, University of Padova, Padova, Italy
Interests: rheological–physical–mechanical characterization of bitumen, bituminous mixtures (hot mix asphalt, cold mix asphalt, warm mix asphalt, etc.) and cement-bound mixtures for road and airport infrastructure; aggregates and materials, even unconventional ones, for road, railway and airport infrastructure; road pavements for concrete bridge decks; the design, construction and maintenance of railway infrastructure; road safety; Life Cycle Assessment applied to the design, construction and maintenance of transport infrastructures; Building Information Modeling applied to transport infrastructures (I-BIM)
Special Issues, Collections and Topics in MDPI journals
Dr. Andrea Baliello

E-Mail Website
Guest Editor
Department of Civil, Environmental and Architectural Engineering, University of Padova, Padova, Italy
Interests: road materials; pavement engineering; road egineering; road infrastructures; railways; airports
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

New materials and technologies for road pavements are acquiring scientific interest because of the recent advancements in the automotive and infrastructure sectors. Indeed, sustainable and resilient pavements are also crucial, considering the current economic and environmental challenges regarding the field of road engineering.

From this perspective, innovative materials, construction methods, practices and technologies can improve road sustainability and performance, the effectiveness of recycling and rehabilitation, and the in-service durability for economic savings while also adopting new smart infrastructure, intelligent road systems and vehicles.

The Special Issue aims to collect and share scientific knowledge about innovative materials and technologies for designing, constructing, and maintaining road pavements.

Dr. Giovanni Giacomello
Dr. Andrea Baliello
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

  • road pavements
  • road materials
  • innovative materials
  • innovative technologies
  • pavement materials
  • smart roads
  • sustainability
  • recycling
  • pavement engineering

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Published Papers (3 papers)

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Research

15 pages, 1710 KiB  
Article
Engineering Properties of Road Paving Mixtures with High Content of Reclaimed Asphalt and Recycled Waste Plastics
by Joseph Nicolas La Macchia, Orazio Baglieri, Davide Dalmazzo and Ezio Santagata
Materials 2024, 17(23), 5681; https://doi.org/10.3390/ma17235681 - 21 Nov 2024
Viewed by 178
Abstract
Great efforts have been made in recent years by the scientific community and the asphalt industry in developing sustainable technologies for the production of asphalt mixtures for road paving applications, pursuing the use of ever higher quantities of recycled materials. In this regard, [...] Read more.
Great efforts have been made in recent years by the scientific community and the asphalt industry in developing sustainable technologies for the production of asphalt mixtures for road paving applications, pursuing the use of ever higher quantities of recycled materials. In this regard, the challenge is to define the optimal formulation of the mixture which allows the various component materials to be synergistically combined without compromising the performance and durability of the asphalt pavement. In such a context, the experimental study described in this paper aimed to provide a contribution to research by investigating sustainable asphalt mixtures containing 50% reclaimed asphalt pavement (RAP) and polymeric compound composed of 100% recycled plastics. A wide set of mixtures was prepared in a laboratory by employing different dosages of polymeric compound added via the hybrid method at various binder contents. For comparison purposes, an additional set of reference asphalt mixtures containing standard polymer-modified binder (PmB) and virgin aggregate without RAP was prepared and tested. The experimentation focused on the main engineering properties of the asphalt mixtures, including their workability, volumetric properties, and mechanical characteristics. The experimental study involved a preliminary trial phase to establish an appropriate laboratory mixing procedure. The results obtained from the experimentation indicated that recycled waste plastics have good potential for use in asphalt mixtures with high contents of RAP, provided that the quantity of added plastics is adequately balanced. Full article
(This article belongs to the Special Issue Innovative Materials and Technologies for Road Pavements)
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24 pages, 17951 KiB  
Article
Durability Investigation of Ultra-Thin Polyurethane Wearing Course for Asphalt Pavement
by Wenguang Wang, Baodong Liu, Dongzhao Jin, Miao Yu and Junsen Zeng
Materials 2024, 17(20), 4977; https://doi.org/10.3390/ma17204977 - 11 Oct 2024
Viewed by 569
Abstract
In this study, a wear-resistant ultra-thin wear layer was fabricated with polyurethane as an adhesive to investigate its durability for pavement applications. Its road performance was investigated based on indoor tests. First, the abrasion test was performed using a tire–pavement dynamic friction analyzer [...] Read more.
In this study, a wear-resistant ultra-thin wear layer was fabricated with polyurethane as an adhesive to investigate its durability for pavement applications. Its road performance was investigated based on indoor tests. First, the abrasion test was performed using a tire–pavement dynamic friction analyzer (TDFA), and the surface elevation information of the wear layer was obtained by laser profile scanning. The relationship between the anti-skid properties of the wear layer and the macro-texture was analyzed. Second, a Fourier infrared spectrometer and scanning electron microscope were employed to analyze the evolution of polyurethane aging properties in the pull-out test and accelerated ultraviolet (UV) aging test. The results showed that the mean profile depth (MPD), arithmetic mean wavelength of contour (λa), surface wear index (SBI), stage mass loss rate (σ), and total stage mass loss rate (ω) of the abrasive layer aggregate had significant multivariate quadratic polynomial relationships with the skidding performance of the abrasive layer. The tensile strength of the polyurethane ultra-thin abrasive layer decreased by only 2.59% after 16 days of UV aging, indicating a minimal effect of UV action on the aggregate and structural spalling of the polyurethane abrasive layer. Full article
(This article belongs to the Special Issue Innovative Materials and Technologies for Road Pavements)
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Graphical abstract

11 pages, 3359 KiB  
Article
Rheological Performance and Differences between Laboratory-Aged and RAP Bitumen
by Noemi Baldino, Olga Mileti, Ylenia Maria Marchesano, Francesca R. Lupi, Domenico Gabriele and Massimo Paolini
Materials 2024, 17(16), 3954; https://doi.org/10.3390/ma17163954 - 9 Aug 2024
Viewed by 797
Abstract
Traditional recycled asphalt pavement (RAP) binder extraction is not a cost-effective and sustainable option for a quick field study because it requires the use of a huge amount of solvent. Hence, most of the studies on asphalt pavement are carried out with laboratory-aged [...] Read more.
Traditional recycled asphalt pavement (RAP) binder extraction is not a cost-effective and sustainable option for a quick field study because it requires the use of a huge amount of solvent. Hence, most of the studies on asphalt pavement are carried out with laboratory-aged bitumen in accordance with well-established procedures, i.e., the pressure aging vessel (PAV). Unfortunately, some studies highlight the differences between bitumen aged in the laboratory and in service because it is difficult to reproduce extreme conditions such as real conditions, both atmospheric and load; and this also affects the choice and use of rejuvenators, sometimes compromising the interpretation of results. This study aims to compare the thermo-rheological behavior of a 70/100 bitumen aged with the PAV and two different binders extracted by RAPs. The rheological performances of bitumens were compared in temperature and by dynamic oscillatory tests and steady-state tests, resulting in strength and viscosity values higher for samples with RAP binders compared to the PAV sample. The same bitumens were tested with the addition of a 3% w/w of soybean oil (SO). The results show a decrease in the moduli and viscosity at all the temperatures investigated when SO is added to the laboratory-aged bitumen, while no appreciable differences are evident on naturally aged samples added with SO. Differences were evaluated in terms of cross-over frequency and rheological parameters. Furthermore, the SO effect showed substantial differences, especially in viscosity values, indicating that the study of regenerated or modified bitumen from aged bitumen still requires study, as current standard techniques and procedures cannot emulate real aging conditions well. Full article
(This article belongs to the Special Issue Innovative Materials and Technologies for Road Pavements)
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