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Sustainability
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Sustainable Construction Materials and Technology—2nd Edition
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Sustainable Construction Materials and Technology—2nd Edition

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Sustainable Engineering and Science".

Deadline for manuscript submissions: 30 June 2024 | Viewed by 1699

Special Issue Editors

Dr. Sayanthan Ramakrishnan

E-Mail Website
Guest Editor
School of Engineering, University of Southern Queensland, Springfield Campus, Queensland 4300, Australia
Interests: sustainable construction materials; advanced concrete technology; building energy efficiency; 3D concrete printing; sustainable built environment
Special Issues, Collections and Topics in MDPI journals
Dr. Sathees Nava

E-Mail Website
Guest Editor
STEM|School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
Interests: prefabricated building; sustainable construction materials; timber-framed construction; mass timber construction; structural and fire testing; structural analysis and design; life-cycle assessment of mass timber and prefabricated building; wind loading on timber-framed house; finite element model analysis; automation in construction
Special Issues, Collections and Topics in MDPI journals
Dr. Kirubajiny Pasupathy

E-Mail Website
Guest Editor
School of Engineering, University of Southern Queensland, Springfield Campus, Queensland 4300, Australia
Interests: sustainable construction materials; fire-resistant materials; construction 3D printing; non-contact inspection and non-destructive testing; structural engineering
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The broad field of sustainability has received significant attention among researchers, engineers, academics and policy makers in the last few decades. This is mainly due to the alarming rates of resource consumption and the fact that the Earth’s resources are limited. The consumption of resources at a higher rate than they are replenishing could lead to their unavailability for future generations. In particular, the construction sector is a major contributor to resource consumption due to the increasing demand for the construction of buildings and infrastructure. To effectively increase the efficiency of resource use and to reduce negative environmental impacts, the materials and methods of the construction sector should be sustainably sourced and operated in order to reduce negative impacts during the lifecycle of construction projects. This includes reducing the energy use and carbon emissions of processing materials, efficient construction methods to minimize energy consumption, the utilization of renewable energy technologies, and waste minimization in construction.

The present Special Issue will explore the recent progress, current thinking, and challenges in sustainable materials and technologies towards the development of a sustainable construction industry. Topics of interest include, but are not limited to, the following:

  • New technologies to reduce, reuse, and recycle construction materials;
  • Other recycled materials for construction materials;
  • Construction materials with low embodied energy;
  • Low-carbon construction materials technology;
  • Enhancing the efficiency and circularity of construction materials;
  • Innovative construction methods to reduce waste;
  • Advanced construction materials for enhancing building energy efficiency;
  • Life cycle assessment of construction materials.

Dr. Sayanthan Ramakrishnan
Dr. Sathees Nava
Dr. Kirubajiny Pasupathy
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. Sustainability 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 materials
  • supplementary cementitious materials
  • low-carbon construction technology
  • digital construction
  • life cycle assessment
  • recycled construction materials
  • sustainable waste management

Published Papers (2 papers)

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Research

22 pages, 9451 KiB  
Article
Formulating Eco-Friendly Foamed Mortar by Incorporating Sawdust Ash as a Partial Cement Replacement
by Samadar S. Majeed
Sustainability 2024, 16(7), 2612; https://doi.org/10.3390/su16072612 - 22 Mar 2024
Viewed by 799
Abstract
Utilizing sawdust efficiently to produce construction materials can help safeguard the environment and decrease costs by minimizing the need for traditional resources and reducing carbon dioxide (CO2) emissions. Additionally, recycling sawdust plays an essential role in creating a sustainable ecosystem. Hence, [...] Read more.
Utilizing sawdust efficiently to produce construction materials can help safeguard the environment and decrease costs by minimizing the need for traditional resources and reducing carbon dioxide (CO2) emissions. Additionally, recycling sawdust plays an essential role in creating a sustainable ecosystem. Hence, this study aimed to examine the potential use of sawdust ash (SDA) as a partial cement replacement on foamed mortar (FM) properties, including its fresh, mechanical, transport, thermal, and microstructural properties. A variety of FM mixtures were tested for workability, density, consistency, intrinsic air permeability, porosity, split tensile strength, compressive strength, flexural strength, and thermal conductivity by replacing cement with SDA at varying percentages of 0%, 10%, 20%, 30%, 40%, and 50%. The results revealed that FM’s workability was reduced by the introduction of SDA with a higher percentage cement replacement, while the density of the FM mixtures was reduced due to SDA’s specific gravity being lower than that of cement. A linear improvement was observed in the air permeability, sorptivity, and porosity of FM–SDA composites with an increased SDA percentage to 20%. It is notable that these properties started to deteriorate once the cement replacement by SDA surpassed 30%. A noticeable improvement of mechanical strength properties of the FM was found at 20% of SDA content, but they deteriorated when the SDA content was more than 30%. FM blends with higher SDA contents exhibited larger and more apparent voids, according to SEM analysis. In conclusion, incorporating sawdust into formulations emerges as a viable method for FM production. This approach not only mitigates the environmental impact of sawdust disposal but also reduces the need for extracting natural resources in construction material manufacturing. Full article
(This article belongs to the Special Issue Sustainable Construction Materials and Technology—2nd Edition)
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28 pages, 3957 KiB  
Article
Suitability of Foamed Concrete for the Composite Floor System in Mid-to-High-Rise Modular Buildings: Design, Structural, and Sustainability Perspectives
by Alvin Rahardjo, Satheeskumar Navaratnam, Guomin Zhang, Quddus Tushar and Kate Nguyen
Sustainability 2024, 16(4), 1624; https://doi.org/10.3390/su16041624 - 16 Feb 2024
Viewed by 662
Abstract
This study investigates the application of lightweight foamed concrete (FC) in modular building floor systems to address challenges in lifting and transportation within modular construction. Initially, a literature review identifies FC’s characteristics and optimum mix design, considering its sustainability and strength. The comprehensive [...] Read more.
This study investigates the application of lightweight foamed concrete (FC) in modular building floor systems to address challenges in lifting and transportation within modular construction. Initially, a literature review identifies FC’s characteristics and optimum mix design, considering its sustainability and strength. The comprehensive review highlights that FC can be a lightweight alternative to replace traditional concrete in floor structures. Further, this study conducted the life cycle assessment and indicates that FC with coarse fly ash substitution is the optimum mix, which releases less greenhouse gas emission (i.e., 740.89 kg CO2-eq/1 m3) than other mixes. Subsequently, the study conducted design verification and parametric study of composite floor systems (i.e., cold-formed steel-FC, timber-FC, and steel deck-FC). The results show similar flexural and shear performance compared to normal-weight concrete despite its lower density (1600 kg/m3) compared to normal-weight concrete (2400 kg/m3). Further, the reduction of modulus of elasticity (43% of normal-weight concrete’s value) in FC increases deflection by 22–46% and 11–15% for steel-FC and timber-FC floor systems, respectively. Overall, the outcome shows that FC can be an efficient alternative for mid-to-high-rise modular building floor construction. Its lightweight nature can reduce the module’s weight, making modular construction more cost-effective. Full article
(This article belongs to the Special Issue Sustainable Construction Materials and Technology—2nd Edition)
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