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Sustainable Asphalt Binders for Roads

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

Deadline for manuscript submissions: closed (10 March 2024) | Viewed by 1783

Special Issue Editor

Department of Civil Engineering, Indian Institute of Technology, Roorkee 247667, India
Interests: highway materials; pavement design and evaluation

Special Issue Information

Dear Colleagues,

Asphalt or bitumen is the principal element of almost 95 percent of road pavements in all countries. Although the quantity of asphalt binder in a mixture is only 4–6 percent, it greatly influences the mechanical and performance properties of the bituminous mix. Asphalt has been used so extensively in roads that researchers are now developing alternative binders as the natural asphalt originates from non-renewable and exhaustible resources. Many new methods of reducing the consumption of natural binder are being explored. These include the development of bio-binders, the utilization of RAP, the emulsion-based construction of roads, and many more.

This Special Issue on Sustainable Binders for Roads aims to collate original research and review articles on sustainable asphalt binder in the fields of highway engineering and pavement technology. Research articles on a wide variety of subjects, including the development of bio-binders, the characterization of new binders, the field performance of pavements constructed with new binders, the use of recycled asphalt binder, the chemistry of alternative binder, and morphological characterization of binder, are invited for this issue. All papers should conform to the theme of the sustainability. 

Potential topics include, but are not limited to, the following:

  • The rheological properties of bio-binders for asphalt pavements;
  • The chemistry of alternative binders relevant to pavement performance;
  • Asphalt Mix design with alternative binders;
  • Field studies with high amount of RAP;
  • Pavement performance;
  • Testing protocols for new binders and asphalt mixtures.

Prof. Dr. Satish Chandra
Guest Editor

Manuscript Submission Information

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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. 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

  • asphalt binder
  • bio-binder
  • sustainable binders for roads
  • cold mix
  • reclaimed asphalt pavement
  • asphalt binder characterization

Published Papers (1 paper)

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Research

14 pages, 2711 KiB  
Article
Evaluation of Bitumen Modification Using a Fast-Reacting SBS Polymer at a Low Modifier Percentage
by Juraj Šrámek, Matúš Kozel, Luboš Remek and Ján Mikolaj
Materials 2023, 16(8), 2942; https://doi.org/10.3390/ma16082942 - 07 Apr 2023
Cited by 1 | Viewed by 1120
Abstract
The study presented in this paper investigates the application of asphalt bitumen modification using a fast-reacting SBS polymer at a low modifier percentage. The hypothesis is that a fast-reacting styrene–butadiene–styrene (SBS) polymer that composes only 2% to 3% of the weight of the [...] Read more.
The study presented in this paper investigates the application of asphalt bitumen modification using a fast-reacting SBS polymer at a low modifier percentage. The hypothesis is that a fast-reacting styrene–butadiene–styrene (SBS) polymer that composes only 2% to 3% of the weight of the bitumen modification could extend the life of the pavement surfacing and pavement performance at relatively low input costs, increasing the net present value produced by the pavement during its life cycle. To confirm or refute this hypothesis, two types of road bitumens CA 35/50 and 50/70 were modified with low amounts of fast-reacting SBS polymer with the expectation of attaining properties similar to a 10/40–65 modified bitumen. For each type of unmodified bitumen, bitumen modification and comparative 10/40–65 modified bitumen, the following tests were conducted: needle penetration, softening point—ring and ball test method, and ductility test. The second part of the article focuses on a comparison of asphalt mixtures with different compositions of coarse-grain curves. For each mixture, complex modulus with varying temperatures and fatigue resistances are represented by the Wöhler diagram and compared. Based on in labo testing, the impact of the modification on pavement performance is evaluated. Life cycle changes for each type of modified and unmodified mixtures are quantified as road user costs, and attained benefits are compared with increased construction costs. Full article
(This article belongs to the Special Issue Sustainable Asphalt Binders for Roads)
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