Special Issue "Towards Advanced Sustainable Recycled Materials and Technology"

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

Deadline for manuscript submissions: 1 March 2022.

Special Issue Editors

Dr. Hawreen Hasan Ahmed
E-Mail Website
Guest Editor
CERIS, Department of Civil Engineering, Architecture and Georesources, Instituto Superior Técnico, University of Lisbon, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
Interests: construction materials; cementitious composites; nanomaterials; recycled materials; covering and finishing materials
Dr. Rawaz Kurda
E-Mail Website
Guest Editor
1. CERIS—Civil Engineering Research and Innovation for Sustainability, Instituto Superior Tecnico, University of Lisbon. Av. Rovisco Pais 1, 1049-001 Lisbon, Portugal;
2. Department of Highway and Bridge Engineering, Technical Engineering College, Erbil Polytechnic University, Erbil 44001, Iraq
Interests: environmental impact; materials science; life cycle assessment; geopolymer concrete; green concrete; Alkali-activated materials; supplementary cementitious materials; construction and demolition waste; Sustainable concrete and mortar; Costs (economy); multi-criteria analysis; optimization
Special Issues and Collections in MDPI journals

Special Issue Information

Dear Colleagues,

Many organizations and research groups have alerted us to the negative impacts of producing and using conventional materials and technologies in the construction industry. This is due to the fact that most of the materials currently used for construction are non-sustainable and derived from non-renewable sources. To address this, researchers have proposed producing and using different types of alternative materials and technologies, including recycled materials. Some of these proposed alternative materials and technologies have already been used by the construction industry, while others were considered ineffective especially when compared with conventional paths in different dimensions such as performance, environmental impact (EI), toxicity, and cost. One way to further promote sustainability is by looking for the most effective recycled materials and advanced technologies in terms of the mentioned dimensions (preferably examined together) of the construction industry.

This Special Issue of Sustainability provides a forum for original studies and comprehensive reviews on progress in advanced recycled materials (e.g., concrete, mortar, wood, steel, plastic, glass, rubber, water), namely material composition, materials manufacturing, on-site application, and in-service performance.

Dr. Hawreen Hasan Ahmed
Dr. Rawaz Kurda
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 papers will be 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 1900 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

  • alkali activation–polymer composites with recycled materials
  • building materials
  • concrete with recycled materials
  • construction and demolition waste
  • costs
  • demolition and disposal
  • eco-friendly construction and building materials
  • energy consumption
  • environmental impact
  • environmental management
  • geopolymers with recycled materials
  • global warming
  • green building
  • green nanomaterials
  • landscape planning
  • life cycle assessment
  • management of recycled materials
  • mortar with recycled materials
  • optimization and artificial neural network
  • recycled aggregates
  • recycled fiber
  • fiber-reinforced concrete
  • recycled materials
  • recycled materials for roads, railways, and other transportation systems
  • recycled materials related to civil engineering applications
  • recycled plastics
  • renewable energy
  • supplementary cementitious materials and recycled materials
  • sustainability
  • sustainable development
  • sustainable technology for recycling materials
  • water reuse

Published Papers (2 papers)

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Research

Article
Predicting the Compressive Strength of Rubberized Concrete Using Artificial Intelligence Methods
Sustainability 2021, 13(14), 7729; https://doi.org/10.3390/su13147729 - 11 Jul 2021
Cited by 1 | Viewed by 469
Abstract
In this study, support vector machine (SVM) and Gaussian process regression (GPR) models were employed to analyse different rubbercrete compressive strength data collected from the literature. The compressive strength data at 28 days ranged from 4 to 65 MPa in reference to rubbercrete [...] Read more.
In this study, support vector machine (SVM) and Gaussian process regression (GPR) models were employed to analyse different rubbercrete compressive strength data collected from the literature. The compressive strength data at 28 days ranged from 4 to 65 MPa in reference to rubbercrete mixtures, where the fine aggregates (sand fraction) were substituted with rubber aggregates in a range from 0% to 100% of the volume. It was observed that the GPR model yielded good results compared to the SVM model in rubbercrete strength prediction. Two strength reduction factor (SRF) equations were developed based on the GPR model results. These SRF equations can be used to estimate the compressive strength reduction in rubbercrete mixtures; the equations are provided. A sensitivity analysis was also performed to evaluate the influence of the w/c ratio on the compressive strength of the rubbercrete mixtures. Full article
(This article belongs to the Special Issue Towards Advanced Sustainable Recycled Materials and Technology)
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Article
Sustainable Use of Waste Polypropylene Fibres to Enhance the Abrasion and Skid Resistance of Two-Stage Concrete
Sustainability 2021, 13(9), 5200; https://doi.org/10.3390/su13095200 - 06 May 2021
Cited by 1 | Viewed by 355
Abstract
Two-stage concrete (TSC), also known as prepacked aggregate concrete (PAC), differs from traditional concrete in terms of site application and manufacturing process. Although this type of concrete is not a replacement for conventional concrete applications, it is an ideal option for unusual and [...] Read more.
Two-stage concrete (TSC), also known as prepacked aggregate concrete (PAC), differs from traditional concrete in terms of site application and manufacturing process. Although this type of concrete is not a replacement for conventional concrete applications, it is an ideal option for unusual and difficult placing conditions, especially for repairing existing concrete structures. In other words, this type of concrete is a newly developed concrete and made by placing and packing coarse aggregates and fibres in a designed formwork, then injecting a cement grout mixture into the free spaces between the aggregate particles using gravity or a pump device. For the mentioned system and others, concrete components used as floors or pavements must have an adequate degree of roughness during service life when exposed to skid and abrasion. Thus, this research work introduced a new concrete method (prepacked aggregates fibre-reinforced concrete—PAFRC) with high abrasion and skid resistance reinforced with waste polypropylene (PP) fibres from the carpet industry. The effects of PP fibres at 0–1% dosages on the mechanical properties, abrasion resistance, and skid resistance of PAFRC mixes were studied. The results revealed that the addition of PP fibres reduces the compressive strength of concrete mixtures. Nonetheless, the presence of PP fibres results in PAFRC mixes having higher tensile strength, abrasion resistance, and skid resistance than plain concrete. It was detected that in both grouting methods (gravity and pump), with the addition of PP fibre up to a specific dosage, the resistance against abrasion and skid was increased by about 26% compared to plain PAC mix. Additionally, the outcomes indicated that PAFRC is a promising material for applications such as pavements with high abrasion and skid resistance. Full article
(This article belongs to the Special Issue Towards Advanced Sustainable Recycled Materials and Technology)
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