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The Evaluation and Characterization of Asphalt and Concrete

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

Deadline for manuscript submissions: closed (20 September 2023) | Viewed by 1833

Special Issue Editors


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Guest Editor
Faculty of Civil and Environmental Engineering, Gdańsk University of Technology, 80-233 Gdańsk, Poland
Interests: concrete; reinforced concrete; damage mechanics; FEM; numerical simulations of concrete and reinforced structures; structural engineering

E-Mail Website
Guest Editor
Faculty of Civil and Environmental Engineering, Gdańsk University of Technology, 80-233 Gdańsk, Poland
Interests: asphalt; asphalt mixtures; modelling; properties of bitumen and mixtures at low, intermediate and high temperatures; additives

Special Issue Information

Dear Colleagues,

Asphalt and concrete have been the most widely used construction materials all over the world for decades. The continuous development of asphalt (e.g., polymer-modified bitumen; additives that improve the properties of asphalt) and concrete technology (e.g., high-strength concretes and fibre-reinforced concrete) creates new possibilities for the design and utilization of structural members. Moreover, nowadays, the increasing challenge in the construction materials industry is to reduce its environmental impact, which can be achieved by reducing the cement content in mixtures by using warm-mix asphalt and secondary raw materials such as recycled aggregates or alternative binders. Since the knowledge of new possibilities, but also of limitations, is required, there is now an unabated interest in the investigation of asphalt and concrete materials. For these reasons, the aim of this Special Issue is to gather the latest findings from researchers to show the latest advances and trends in characterisation and evaluation of asphalt and concrete materials.

Topics of this Special Issue, entitled "The Evaluation and Characterization of Asphalt and Concrete" include, but are not limited to, the following:

  • The design of new asphalt and concrete materials (in particular with innovative materials and techniques);
  • The characterisation of newly design asphalt and concrete mixes/materials;
  • The evaluation of newly designed concrete and asphalt (application/comparison/critical assessment);
  • Advances in the characterisation of materials (in particular in the context of durability, long-term behaviour and environmental aspects);
  • The application of new predictive tools or machine learning techniques (MLT) for the evaluation of newly designed mixes/materials.

Prof. Dr. Ireneusz Marzec
Prof. Dr. Marek Pszczola
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.

Published Papers (1 paper)

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Research

19 pages, 3843 KiB  
Article
Obtaining of Formaldehyde Modified Tars and Road Materials on Their Basis
by Katarzyna Pstrowska, Volodymyr Gunka, Yuriy Prysiazhnyi, Yuriy Demchuk, Yurii Hrynchuk, Iurii Sidun, Marek Kułażyński and Michael Bratychak
Materials 2022, 15(16), 5693; https://doi.org/10.3390/ma15165693 - 18 Aug 2022
Cited by 8 | Viewed by 1302
Abstract
The process of chemical modification of tar and oxidized bitumen with formalin (a 37% aqueous solution of formaldehyde) in a hermetic container was investigated and the effectiveness of the proposed process was proven. It is shown that the most effective raw material for [...] Read more.
The process of chemical modification of tar and oxidized bitumen with formalin (a 37% aqueous solution of formaldehyde) in a hermetic container was investigated and the effectiveness of the proposed process was proven. It is shown that the most effective raw material for the process is tar, not oxidized bitumen. The expediency and impact of using different types of solvents (toluene, p-xylene and petroleum solvent, and n-octane) in the modification process were studied. It was established that the solvent should be used in the modification of oxidized bitumens, not tars. The low efficiency of the process of tar modification with formaldehyde without the use of a catalyst was proven, and it was shown that the most active catalyst in the process is sulfuric acid. The influence and optimal values of the main factors controlling the process of chemical modification of tar with formaldehyde were established, namely temperature, duration, and content of the modifier—formaldehyde. On the basis of the found regularities and optimal conditions of the modification process, samples of binding materials (of different brands) with different operational characteristics were obtained, and their comprehensive research was carried out. With the help of FTIR spectroscopy, the chemical interaction of tar with formaldehyde in the presence of an acid catalyst was confirmed. The design of the compositions of asphalt concrete mixtures using formaldehyde-modified tar was carried out, from which cylindrical samples of stone mastic asphalt (SMA-15 brand) were obtained, which were tested according to the main indicators: average density, water-saturation, compression strength at 20 and 50 °C, compression strength after water-saturation (MPa) at 50 °C. Full article
(This article belongs to the Special Issue The Evaluation and Characterization of Asphalt and Concrete)
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