The Latest Advancements in Road Asphalt Materials and Construction Technologies

A special issue of Infrastructures (ISSN 2412-3811). This special issue belongs to the section "Infrastructures Materials and Constructions".

Deadline for manuscript submissions: closed (30 November 2023) | Viewed by 1813

Special Issue Editor


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Guest Editor
Slovenian National Building and Civil Engineering Institute, Dimičeva ulica 12, 1000 Ljubljana, Slovenia
Interests: asphalt mixtures; bitumen; test methods, asphalt mixture design

Special Issue Information

Dear Colleagues,

Asphalt, as the second most used building material, is used worldwide. Asphalt roads were constructed in ancient times, and they have also been in use for over a hundred years in modern times. Nevertheless, even to this day, asphalt technology is still mostly traditional, with asphalt manufacturers hardly in favor of major changes. Asphalt science and technology are also advancing very slowly in comparison to other research areas. However, there is currently an increasing number of new materials and new test methods which may also be applicable in asphalt technology and test methods.

The aim of this Special Issue is to publish manuscripts on cutting-edge science and technology in the field of asphalt. The goal is to publish new ideas even if they seem unrealistic. The selection of papers will focus on new asphalt production technologies, new test methods and new ways of asphalt mixture design. Authors with limited English language skills are also welcome to promote their ideas.

The topics of interest include but are not limited to:

  • New or modified types of asphalt mixtures;
  • New perspective additives for the improved performance of asphalt mixtures;
  • New or modified ways for preparing asphalt mixture design;
  • New or modified technology for producing asphalt mixtures;
  • New or modified test methods for evaluation quality of asphalt mixture and asphalt layers.

Dr. Marjan Tusar
Guest Editor

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. Infrastructures is an international peer-reviewed open access monthly 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 1800 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

  • asphalt mixtures
  • new test methods
  • alternative asphalt mixture design
  • modified technology
  • new or modified asphalt additives

Published Papers (1 paper)

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Research

16 pages, 3364 KiB  
Article
Exploring the Efficacy of Amine-Free Anti-Stripping Agent in Improving Asphalt Characteristics
by Zaid Hazim Al-Saffar, Heja Ghazi Mohamed Hasan and Salam Ridha Oleiwi Aletba
Infrastructures 2024, 9(2), 25; https://doi.org/10.3390/infrastructures9020025 - 31 Jan 2024
Viewed by 1460
Abstract
This research addresses the significant challenge posed by early water damage in highway asphalt pavement, a critical concern affecting pavement service performance. To counteract this issue, the utilization of anti-stripping agents in asphalt is explored as a highly effective technical intervention. In this [...] Read more.
This research addresses the significant challenge posed by early water damage in highway asphalt pavement, a critical concern affecting pavement service performance. To counteract this issue, the utilization of anti-stripping agents in asphalt is explored as a highly effective technical intervention. In this investigation, a carefully selected amine-free additive was employed to modify the asphalt binder. A comprehensive array of physical and rheological tests, covering aspects such as storage stability, penetration, softening point, ductility, elastic recovery, rolling thin-film oven, retained penetration, the ductility of residue, and rotational viscometer assessments, were conducted to examine the multifaceted impact of the anti-stripping agent on the asphalt binder. Additionally, we assessed the asphalt mixture’s sensitivity to moisture through Marshall stability tests after conditioning for 40 min and 24 h, followed by an enhanced immersion test and moisture susceptibility measurement. The results reveal a nuanced interplay of chemical and physical mechanisms influencing the behavior of the asphalt binder. Notably, the incorporation of an anti-stripping agent at a concentration of 0.25–0.5% (by weight of asphalt binder) led to a substantial improvement in the tensile strength ratio (TSR) to 94.9%, a noteworthy enhancement compared to the 80.6% observed with virgin asphalt mixture. Furthermore, the retained stability index (RSI) exhibited a remarkable increase to 98.1%, surpassing the 87.6% recorded for virgin asphalt. This study not only provides crucial insights into the intricate dynamics of asphalt binder performance but also emphasizes the pivotal role of anti-stripping agents in augmenting the structural integrity and resilience of asphalt pavement. Full article
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