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Buildings
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Characteristics and Performance of Bio-Based Building Materials
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Characteristics and Performance of Bio-Based Building Materials

A special issue of Buildings (ISSN 2075-5309). This special issue belongs to the section "Building Materials, and Repair & Renovation".

Deadline for manuscript submissions: closed (30 June 2023) | Viewed by 1974

Special Issue Editor

Dr. Fouzia Khadraoui

E-Mail Website1 Website2
Guest Editor
Laboratoire ESITC, COMUE Normandie Université, Epron, France
Interests: bio-based materials; sustainable construction; fiber; building materials; concrete technologies

Special Issue Information

Dear Colleagues,

The reduction in CO2 emissions in buildings is one of the most major current preoccupations. In fact, this is due to the important energy demand for the production of materials as well as the exploitation of buildings.

In this context, the use of bio-based materials is one of the best solutions to these challenges. Nevertheless, the lack of knowledge on these materials makes them used even more rarely today. Several studies are interested in the development of these new materials to meet construction environmental challenges. However, these studies are still limited, especially in terms of their durability and environmental analyses.

This Special Issue, "Characteristics and Performance of Bio-Based Building Materials", in Buildings aims to present and disseminate the most recent investigations related to the experimental characterization, modeling, microstructural analysis, life cycle assessment, and durability of bio-based building materials.

Dr. Fouzia Khadraoui
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. Buildings 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 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

  • sustainable construction
  • durability
  • physical, mechanical, and thermal performance
  • life cycle assessment
  • microstructural analysis
  • experiments
  • numerical simulation

Published Papers (2 papers)

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Research

18 pages, 9062 KiB  
Article
Influence of Porous Structure of Non-Autoclaved Bio-Based Foamed Concrete on Mechanical Strength
by Abdelrahman Mohamad, Fouzia Khadraoui, Daniel Chateigner and Mohamed Boutouil
Buildings 2023, 13(9), 2261; https://doi.org/10.3390/buildings13092261 - 06 Sep 2023
Cited by 2 | Viewed by 685
Abstract
This study examines the impact of the porous structure on the density and mechanical behavior of a new foamed concrete incorporating hemp shives. The specific aim is to gain a better understanding of how the inclusion of hemp shiv, as well as different [...] Read more.
This study examines the impact of the porous structure on the density and mechanical behavior of a new foamed concrete incorporating hemp shives. The specific aim is to gain a better understanding of how the inclusion of hemp shiv, as well as different additions and foaming methods, influence the density and mechanical strength of the concrete. A total of eight batches of foam concrete were produced and tested, made with a protein-based surfactant agent, with cement, ground granulated blast furnace slag, and metakaolin as binders and hemp shiv as natural aggregates. The effect of several parameters is studied, including elaboration method (direct and preformed), amount of pozzolanic additions (0% and 30 of cement weight%), and incorporation of hemp shiv (5 and 15 vol%) on the resulting physical properties, microstructure, porous structure and mechanical behavior of the concrete. Pozzolanic additions improve slightly the uniformity of pore sizes, which increases the mechanical resistance, especially at 28 days. While hemp shiv incorporation results in increased concrete porosity and air bubble radius, it also decreased uniformity, mechanical strength, and lower cohesion with the cement matrix compared to standard concrete. The results contribute to the development of eco-friendly construction materials and promote the utilization of agricultural waste in the construction industry. Full article
(This article belongs to the Special Issue Characteristics and Performance of Bio-Based Building Materials)
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18 pages, 5934 KiB  
Article
Microstructure of Bio-Based Building Materials: New Insights into the Hysteresis Phenomenon and Its Consequences
by Séverine Rosa Latapie, Ariane Abou-Chakra and Vincent Sabathier
Buildings 2023, 13(7), 1650; https://doi.org/10.3390/buildings13071650 - 28 Jun 2023
Cited by 2 | Viewed by 898
Abstract
Considering the current energy environment, both efficient and environmentally friendly solutions have to be developed for building construction. Bio-based building materials offer new perspectives through their insulating and natural humidity regulation capacities. Nevertheless, these materials are as complex as they are promising, and [...] Read more.
Considering the current energy environment, both efficient and environmentally friendly solutions have to be developed for building construction. Bio-based building materials offer new perspectives through their insulating and natural humidity regulation capacities. Nevertheless, these materials are as complex as they are promising, and grey areas still remain regarding their behavior. Their water sorption and desorption curves recorded in experimental work demonstrate a hysteresis phenomenon and, although plausible hypotheses have been formulated in the literature, there is currently no consensus on its causes. Furthermore, it is important to emphasize that no reference considers the hydrophilic nature of the resource. Yet, this is a specificity of raw material coming from the plant world. In this context, this paper explores the microstructure and chemical composition of plant aggregates to propose a new explanation for the hysteresis. It is based on recent work demonstrating the existence of differentiated hydrogen bonds between the water sorption and desorption phase in cellulose. Obviously, hysteresis also has an origin at the molecular scale. Lastly, the hypothesis put forward here is supported by the swelling of bio-based materials that has been observed at high relative humidity, and this study aims to identify a link between the mechanics of bio-based materials and their hygroscopic behavior. A swelling/shrinking is macroscopically observed. Combining the fields of chemistry, physics, and civil engineering allowed us to demonstrate that it comes from a molecular-scale hydromechanical coupling. This is a major breakthrough in the understanding of bio-based composites. Full article
(This article belongs to the Special Issue Characteristics and Performance of Bio-Based Building Materials)
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