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Guest Editor

Engineering School, Merchant Marine Academy of Crete, 73200 Chania, Greece
Interests: construction materials; cement chemistry; geopolymers; valorization of wastes in building materials; materials characterization and testing

Dr. Konstantinos Sotiriadis

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Guest Editor

Institute of Theoretical and Applied Mechanics of the Czech Academy of Sciences, 19000 Prague, Czech Republic
Interests: cement chemistry; concrete technology; durability of cement-based materials in corrosive environments; microstructural analysis; supplementary cementing materials; magnesium phosphate cements; alkali-activated binders; self-healing; cultural heritage building materials
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Special Issue Information

Dear Colleagues,

The construction sector, one of the pillars of the global economy, still follows the “make–take–dispose” concept. Indeed, the construction sector accounts for a large consumption of raw materials for use in manufacturing of building products and components, adding significant amounts of energy and greenhouse gas emissions to the life cycle of the buildings. However, the scarcity of natural resources, the high energy demand of production processes and the high rate of waste landfilling indicate the imperative need of transforming the construction industry to follow the concepts of sustainability and circularity.

In view of the aforementioned, this Special Issue aims to collect innovative research findings involving advances in sustainable construction materials and their characterization, less energy consuming production processes of construction materials, different waste streams valorization in the production of building products, methodologies of minimizing the environmental impact in the building sector, efficient methods of recycling and reusing in the construction, as well as innovative technologies for improving the performance and service life of the construction materials.

Sustainability is an international, cross-disciplinary, scholarly, peer-reviewed, and open access journal of environmental, cultural, economic, and social sustainability of human beings. It provides an advanced forum for studies related to sustainability and sustainable development, and is published semimonthly online by MDPI.

In this Special Issue, original research articles and reviews are welcome.

We look forward to receiving your contributions.

Prof. Dr. Dimitrios Kioupis
Dr. Konstantinos Sotiriadis
Guest Editors

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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 2200 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

construction materials
geopolymers
innovative technologies
reuse and recycle
wastes valorisation
characterization and testing
life cycle analysis
carbon footprint
durability

Published Papers (1 paper)

Research

Open AccessArticle

Perlite and Rice Husk Ash Re-Use As Fine Aggregates in Lightweight Aggregate Structural Concrete—Durability Assessment

Maria C. Stratoura

Gerasimina-Ersi D. Lazari

Efstratios G. Badogiannis

and

Vagelis G. Papadakis

Sustainability 2023, 15(5), 4217; https://doi.org/10.3390/su15054217 - 26 Feb 2023

Cited by 1 | Viewed by 504

Abstract

In this paper, perlite mining and rice production by-products, namely run-of-mine perlite and rice husk ash, are used as fine aggregates in combination with pumice and calcareous aggregates to produce lightweight concrete. Their use is evaluated mainly in terms of the durability of the concrete, by comparing four optimized lightweight concrete mixtures of similar density and strength with a reference one of normal weight. The sorptivity due to capillary sorption, open porosity, chloride migration, penetration resistance, and freeze and thaw response were studied to evaluate the durability of the lightweight concrete. According to the experimental results, the examined mixtures developed an adequate strength in order to be classified into strength classes greater than LC25/28 and, therefore, be used in structural applications. The durability of the mixtures was also sufficient, especially as far as the chlorides’ penetration resistance is concerned, which was found to be up to 39% lower compared to the reference mixture. The sorptivity and open porosity of the LWC mixtures increased due to the porous nature of the lightweight aggregates, and the mixtures were also found to be susceptible to freeze and thaw cycles. Exceptionally, the lightweight concrete mixtures comprising pumice and perlite exhibited a lower sorptivity and resistance to chloride penetration than the standard concrete and a promising tolerance to freezing and thawing. Thus, the optimized combination of pumice and perlite is a sustainable recommendation for structural lightweight concrete production and use, promoting the wider exploitation of natural aggregates with an acceptable compromise on strength and durability. Full article

(This article belongs to the Special Issue Sustainability in Construction Materials)

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