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Next-Generation Concrete: Circular and Carbon-Conscious Solutions

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Civil Engineering".

Deadline for manuscript submissions: 20 August 2026 | Viewed by 305

Special Issue Editor


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Guest Editor
Department of Engineering and Chemical Sciences, Karlstad University, 651 88 Karlstad, Sweden
Interests: sustainable construction and building materials; smart buildings; energy efficiency
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are pleased to invite submissions to a forthcoming Special Issue dedicated to exploring the future of concrete in the context of sustainability, carbon reduction, and circularity.

As the construction sector seeks to align with net-zero goals, concrete must evolve to meet growing environmental and societal demands. This Special Issue focuses on innovative materials and circular strategies that are shaping the next generation of concrete solutions. Topics include, but are not limited to, the following:

  • Circular practices, such as recycled aggregates, industrial by-products, and cradle-to-cradle design;
  • Carbon-conscious strategies, including low-carbon binders, carbon capture, and life cycle analysis;
  • Multiscale approaches to enhance durability, performance, and environmental compatibility.

This Special Issue aims to bridge the gap between science and industry and to inspire collaborative solutions that will redefine concrete's role in a low-carbon and circular built environment.

We welcome interdisciplinary research and practical insights from engineers, architects, scientists, and decision-makers.

Dr. Asaad Almssad
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 250 words) can be sent to the Editorial Office for assessment.

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. Applied Sciences 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 2400 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

  • sustainable construction
  • green building
  • low-carbon materials
  • sustainable infrastructure
  • carbon footprint
  • life cycle assessment
  • eco-innovation
  • resilient materials
  • carbon sequestration

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Published Papers (1 paper)

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Research

31 pages, 4320 KB  
Article
The Use of Slag, Biochar, and Hydrochar as Potential Concrete Additives: Effects on Compressive Strength and Spalling Resistance Before and After Fire Exposure
by Asaad Almssad, Majid Al-Gburi, A. Viktor and Awaz Mohammadullah
Appl. Sci. 2025, 15(24), 13248; https://doi.org/10.3390/app152413248 - 18 Dec 2025
Viewed by 136
Abstract
Cement production is a significant global source of CO2 emissions, leading to a demand for sustainable concrete alternatives. This study investigates the use of various additives to partially replace cement and assesses their effects on compressive strength and fire resistance, particularly spalling. [...] Read more.
Cement production is a significant global source of CO2 emissions, leading to a demand for sustainable concrete alternatives. This study investigates the use of various additives to partially replace cement and assesses their effects on compressive strength and fire resistance, particularly spalling. Seven concrete mixes were tested for their initial and post-fire compressive strength, mass loss, and cracking. The cement-only reference mix (R1) achieved the highest initial strength (53.3 MPa) but experienced severe explosive spalling. In contrast, the mix with slag and polypropylene (PP) fibers (R4) offered the best balance, maintaining substantial strength after fire while completely preventing spalling. Biochar additions consistently lowered strength and increased spalling risk, whereas hydrochar notably enhanced spalling resistance, especially at higher replacement levels. The results demonstrate that sustainable additives, such as slag with PP fibers or high-dose hydrochar, can effectively improve fire safety and reduce cement use, though there is an initial trade-off in mechanical performance. Ultimately, choosing the optimal mix depends on whether environmental benefits, fire resistance, or structural strength is the highest priority. Full article
(This article belongs to the Special Issue Next-Generation Concrete: Circular and Carbon-Conscious Solutions)
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