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Eco-Friendly Building Materials
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Eco-Friendly 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: 31 August 2024 | Viewed by 4427

Special Issue Editors

Prof. Dr. Augusto Cesar Da Silva Bezerra

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Guest Editor
Department of Civil Engineering, Federal Center for Technological Education of Minas Gerais, Belo Horizonte 30421-169, Brazil
Interests: sustainability; waste utilization; low-carbon binders; alkali-activated materials; Portland cement; cementitious composites; concrete; resilient infrastructure
Prof. Dr. Ricardo André Fiorotti Peixoto

E-Mail Website
Guest Editor
Department of Civil Engineering, Federal University of Ouro Preto, Ouro Preto 35400-000, Brazil
Interests: materials technology; construction processes; civil construction; construction materials; management, treatment, and recycling of industrial solid waste; recycling; reuse; sustainability
Prof. Dr. Jose Maria Franco De Carvalho

E-Mail Website
Guest Editor
Department of Civil Engineering, Federal University of Viçosa, Viçosa 36570-900, Brazil
Interests: sustainable materials; eco-efficient concrete; reuse of industrial waste; cement and cement matrix technology; repair and rehabilitation
Paulo Roberto Ribeiro Soares Junior

E-Mail Website
Guest Editor Assistant
Federal Center for Technological Education of Minas Gerais (Centro Federal de Educação Tecnológica de Minas Gerais), Belo Horizonte 30421-169, Brazil
Interests: cementitious composites; supplementary cementitious materials; alkali-activated materials; geopolymers; advanced/functional properties applied to environmental remediation

Special Issue Information

Dear Colleagues,

Building materials are highly demanded for our comfort, safety, and survival. The need for housing, sanitation, and transport infrastructure will demand even higher amounts of building materials, especially in countries in the southern hemisphere. On the other hand, raw materials are increasingly scarce, and greenhouse gas emissions linked to the construction materials sector are placing pressure on the environment. The reuse of waste, the incorporation of waste in construction materials, and the reduction in emissions related to the production and use of construction materials must be investigated. This Special Issue seeks to explore the reuse, incorporation, and use of waste in the production of construction materials, in addition to initiatives to reduce the CO2 emissions and decarbonization via construction materials.

The terms eco-friendly building materials and low-carbon building materials are still not clear. This Special Issue opens up the possibility for scientists and engineers to share their findings and views on eco-friendly building materials and low-carbon building materials. We invite researchers to share their findings on incorporating industrial, agricultural, and mining waste in building materials for structural purposes or otherwise, developing materials with lower CO2 emissions, such as LC3 cement and alkali-activated materials, and construction artifacts with the incorporation of waste. Research on the use of mining waste, steel industry waste, biomass thermoelectric waste, and construction and demolition waste in Portland cement, activated cement, mortars, and concrete is welcome.

Topics of interest include, but are not limited to, the following:

  • Incorporation of industrial, agricultural, and mining waste in construction materials;
  • Green cement and low-carbon binders;
  • Low-carbon concrete;
  • Use of residues as precursors in alkali-activated materials;
  • Construction and demolition waste as binders;
  • Concrete artifacts incorporating waste;
  • Waste immobilization in cementitious materials;
  • Decarbonisation via cement, mortar, and concrete.

Research articles and review articles are welcome.

Prof. Dr. Augusto Cesar Da Silva Bezerra
Prof. Dr. Ricardo André Fiorotti Peixoto
Prof. Dr. Jose Maria Franco De Carvalho
Guest Editors

Paulo Roberto Ribeiro Soares Junior
Guest Editor Assistant

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

  • eco-friendly materials
  • low-carbon materials
  • waste
  • sustainability

Published Papers (3 papers)

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Research

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19 pages, 4601 KiB  
Article
Sustainable Structural Lightweight Concrete with Recycled Polyethylene Terephthalate Waste Aggregate
by Douglas Mol Resende, José Maria Franco de Carvalho, Bárbara Oliveira Paiva, Gustavo dos Reis Gonçalves, Lais Cristina Barbosa Costa and Ricardo André Fiorotti Peixoto
Buildings 2024, 14(3), 609; https://doi.org/10.3390/buildings14030609 - 26 Feb 2024
Cited by 1 | Viewed by 997
Abstract
Plastic is a widely consumed material with a high decomposition time, occupying significant space in landfills and dumps. Thus, strategies to reuse plastic waste are imperative for environmental benefit. Plastic waste is a promising eco-friendly building material for cement-based composites due to its [...] Read more.
Plastic is a widely consumed material with a high decomposition time, occupying significant space in landfills and dumps. Thus, strategies to reuse plastic waste are imperative for environmental benefit. Plastic waste is a promising eco-friendly building material for cement-based composites due to its reduced specific gravity and thermal conductivity. However, this waste reduces the composites’ mechanical strength. This work aims to produce and evaluate lightweight concretes made with only lightweight aggregates and mostly recycled plastic aggregates. Initially, an optimized dosage approach for lightweight concrete is presented. The mixture proportion of the lightweight concrete was based on the performance of mortars with the complete replacement of natural aggregate by recycled polyethylene terephthalate (PET) aggregates. The PET aggregates showed irregular shapes, impairing workability and providing lightweight concretes with around 18% water absorption and 21% void index. However, the concretes presented significantly low-unit weight, approximately 1200 kg/m3. This work presented a structural lightweight concrete (ACI 213-R) using only lightweight aggregates and mostly plastic waste aggregate, with a compressive strength of up to 17.6 MPa, a unit weight of 1282 kg/m3, and an efficiency factor of 12.3 MPa·cm3/g. The study shows that with an optimum dosage, reusing plastic waste in concrete is a viable alternative contributing to environmental sustainability. Full article
(This article belongs to the Special Issue Eco-Friendly Building Materials)
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16 pages, 2512 KiB  
Article
Characterization and Analysis of Iron Ore Tailings Sediments and Their Possible Applications in Earthen Construction
by Sofia Bessa, Marlo Duarte, Gabriela Lage, Isabela Mendonça, Roberto Galery, Rochel Lago, Ana Paula Texeira, Fernando Lameiras and Maria Teresa Aguilar
Buildings 2024, 14(2), 362; https://doi.org/10.3390/buildings14020362 - 29 Jan 2024
Viewed by 779
Abstract
Mineral extraction is of ultimate importance for the economies of different countries, and Brazil is one of the world’s leading producers of iron ores. Unfortunately, dams are still the main problem, mainly in Minas Gerais, especially after the Fundão Dam rupture in 2015. [...] Read more.
Mineral extraction is of ultimate importance for the economies of different countries, and Brazil is one of the world’s leading producers of iron ores. Unfortunately, dams are still the main problem, mainly in Minas Gerais, especially after the Fundão Dam rupture in 2015. Additionally, there is still a massive presence of buildings built on earth throughout the Minas Gerais mining region, built from the 18th century to today. Investigating the potential of iron ore tailings (IOT) to be incorporated into traditional earthen construction techniques in regions affected by dam ruptures presents a relevant and innovative research approach. In addition, the local reuse of these sediments should be the priority. Thus, the main objective of this work was to collect, characterize, and analyze the possibilities of the application of these tailings to produce rammed earth (RE). A complete characterization analysis was performed on the samples collected at three points. To analyze the soil-IOT compatibility, representative mixtures of RE were produced, and the specific mass, compaction, and compressive strength were performed. It was observed that the IOT samples have a high silica content and that the mixtures of IOT–soil, even without cement, reached the compressive strength values of the international standards, or even above them. Full article
(This article belongs to the Special Issue Eco-Friendly Building Materials)
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Review

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27 pages, 3478 KiB  
Review
Acid Activation in Low-Carbon Binders: A Systematic Literature Review
by Janaina Aguiar Park, Marcio Mateus Pimenta and Augusto Cesar da Silva Bezerra
Buildings 2024, 14(1), 83; https://doi.org/10.3390/buildings14010083 - 27 Dec 2023
Cited by 1 | Viewed by 1995
Abstract
Geopolymers have emerged as an alternative binding material to Ordinary Portland Cement (OPC). Recently, there has been an increase in studies exploring the synthesis of these materials using acid activation rather than traditional alkaline activation. This approach offers benefits such as good strength [...] Read more.
Geopolymers have emerged as an alternative binding material to Ordinary Portland Cement (OPC). Recently, there has been an increase in studies exploring the synthesis of these materials using acid activation rather than traditional alkaline activation. This approach offers benefits such as good strength at an early age, better thermal properties, and a chemical activator that emits less carbon to be produced. In addition, it provides resistance to efflorescence and leaching, which are common challenges associated with alkali-activated products. This work analyzed the scientific advances in acid activation in synthesizing an alternative binder to OPC. To this end, a systematic review of the last five years of scientific literature was carried out using the Systematic Review for Engineering and Experiments (SREE) method. The results show a notable increase in research focused on acid activation over the last few years. The acid activators were always phosphate solutions, mainly phosphoric acid. Metakaolin was the most tested precursor, followed by fly ash, and volcanic ash. The research requires improvements in the methodological quality, providing data on molar ratios (Al/P, Si/Al, and Si/P), Liquid/Solid mass ratio, activator solution molarity, and curing process, in addition to statistical treatment and comparison of results. There exists a paucity of diversity in the examined precursors, activators, and additives. Future research developments need to clarify the behavior of mechanical resistance over time, better curing process, water resistance, durability, and the role of iron, magnesium, and calcium silicates and/or oxides. The paper identifies the main research gaps in the area and functions as a database, guiding researchers in selecting raw materials, dosing methodology, and curing processes. Full article
(This article belongs to the Special Issue Eco-Friendly Building Materials)
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