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Recycling
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Sustainable Management in Eco-Materials, Industrial Residues and Construction and Demolition...
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Sustainable Management in Eco-Materials, Industrial Residues and Construction and Demolition Waste

A special issue of Recycling (ISSN 2313-4321).

Deadline for manuscript submissions: closed (15 April 2024) | Viewed by 9342

Special Issue Editor

Dr. Lucía Fernández-Carrasco

E-Mail Website
Guest Editor
Department of Civil and Environmental Engineering (DECA), Universitat Politècnica de Catalunya (UPC), 08034 Barcelona, Spain
Interests: recycling; eco-materials; industrial residues; construction and demolition waste reusing; sustainability

Special Issue Information

Dear Colleagues,

Due to the problems caused by climate change and especially the increase in the population, which leads to an accelerated consumption of raw materials and the generation of waste products, it is increasingly necessary to focus on the recycling of materials and to incorporate them back into the value chain to give them a new use and to avoid the consumption of new raw materials.

The construction sector is a pioneer and has been recycling and reusing materials from its own industry but also from other industries for decades. This Special Issue takes a look at recycling and reusing materials to promote and contribute to tackling pollution and climate change.

Dr. Lucía Fernández-Carrasco
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. Recycling 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 1800 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

  • recycling
  • reuse
  • eco-materials
  • industrial residues
  • construction and demolition waste
  • sustainability

Published Papers (5 papers)

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Research

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20 pages, 5661 KiB  
Article
A Sustainable Solution with Improved Chemical Resilience Using Repurposed Glass Fibers for Sewage Rehabilitation Pipes
by Devanand Chelot, Shivnarain Ravichandran and Priyank Upadhyaya
Recycling 2024, 9(2), 28; https://doi.org/10.3390/recycling9020028 - 31 Mar 2024
Viewed by 768
Abstract
This paper introduces a sustainable sewage rehabilitation solution, utilizing repurposed glass fibers for enhanced chemical resilience and environmental conservation. The approach involves dividing a unitary pipe into segments, assembled during commissioning, aiming to reduce installation and transportation costs, particularly in less accessible areas. [...] Read more.
This paper introduces a sustainable sewage rehabilitation solution, utilizing repurposed glass fibers for enhanced chemical resilience and environmental conservation. The approach involves dividing a unitary pipe into segments, assembled during commissioning, aiming to reduce installation and transportation costs, particularly in less accessible areas. Each pipe segment comprises a multi-layered glass fiber composite sandwich, joined by an adhesive reinforced with recycled glass fibers. The glass fiber-reinforced plastic (GFRP) pipe features a core of blended sand impregnated with resin, an outer layer for impact resistance, and an inner layer to prevent corrosion. Chemical resilience is assessed through a 10,000 h strain corrosion study exposing both unitary and two-piece circular GFRP pipes to sulfuric acid in a deflected condition. An apparent hoop tensile test evaluates mechanical integrity before and after exposure. The experimental results reveal that the two-piece pipe with a tongue and groove joint (TGJ) with recycled glass fiber adhesive exhibits superior long-term bending stress and failure strain % compared to unitary pipes. This enhancement is attributed to the TGJ’s improved load-bearing capability and chemical resistance. The failure strain % of the two-piece pipe (1.697%) is higher compared to the unitary pipe (1.2613%). The long-term bending stress of the two-piece pipe obtained is 119.94 MPa whereas the unitary pipe reaches 93.48 MPa at the 50-year mark. The cost analysis supports the adoption of the two-piece pipe over unitary pipes due to a 40% reduction in carbon emissions and transportation cost. The novelty lies in the utilization of multi-piece pipes with enhanced chemical resilience, achieved through the incorporation of milled fiberglass reinforcements in the TGJ. Strain corrosion tests take a long time to perform; hence, an accelerated test is needed to improve the current recommended testing standard. Full article
(This article belongs to the Special Issue Sustainable Management in Eco-Materials, Industrial Residues and Construction and Demolition Waste)
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18 pages, 7788 KiB  
Article
Non-Structural Vibro-Compressed Concrete Incorporating Industrial Wastes
by Gabriela Bertazzi Pignotti, Ana Mafalda Matos and Fernanda Giannotti da Silva Ferreira
Recycling 2024, 9(2), 26; https://doi.org/10.3390/recycling9020026 - 25 Mar 2024
Viewed by 772
Abstract
This study presents more eco-efficient concrete formulations for precast vibro-compressed masonry blocks. The proposed formulations incorporated industrial waste, glass powder (GP), and quartz powder (QP), in which natural aggregate was partially replaced by QP (10%) and Portland cement by GP (10% and 20%). [...] Read more.
This study presents more eco-efficient concrete formulations for precast vibro-compressed masonry blocks. The proposed formulations incorporated industrial waste, glass powder (GP), and quartz powder (QP), in which natural aggregate was partially replaced by QP (10%) and Portland cement by GP (10% and 20%). The best combination of powder materials, water, and admixture was optimised at mortar level, considering a “zero slump” criteria and compressive strength. Afterwards, studies at concrete level followed. Specimens were vibrated and compressed in laboratory and immediately demoulded, aiming to simulate the industrial process. The compressive strength decreased when GP and QP were used alone; however, when combining 10% GP as cement replacement + 10% QP as fine aggregate replacement, the compressive strength increased by approximately 26.6% compared to the reference concrete. Water absorption results varied between 8.92 and 17.9%, and the lowest absorption was obtained by concrete specimens incorporating 20% GP. The UPV presented a narrow range of variation among all concrete mixtures under study, around 2–2.5 km/s at 28 days, whereas electrical resistivity was achieved at 28 days, at 20,000 and 25,000 ohms. Although there were some limitations of the casting process at the laboratory scale, the research results showed promising results, and it seems feasible to use this waste as a substitute for non-renewable raw materials in the production of concrete on an industrial scale. This can provide added value to abundant local wastes while contributing to a circular concrete economy. Full article
(This article belongs to the Special Issue Sustainable Management in Eco-Materials, Industrial Residues and Construction and Demolition Waste)
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11 pages, 1440 KiB  
Article
Reforming Construction Waste Management for Circular Economy in Kazakhstan: A Cost–Benefit Analysis of Upgrading Construction and Demolition Waste Recycling Centres
by Ferhat Karaca and Aidana Tleuken
Recycling 2024, 9(1), 2; https://doi.org/10.3390/recycling9010002 - 29 Dec 2023
Viewed by 1801
Abstract
This paper investigates the advantages of enhancing construction and demolition waste (CDW) recycling facilities to conform to circular economy (CE) models in Kazakhstan’s construction sector. The industry is experiencing significant growth due to urbanization, but it faces difficulties managing CDW, frequently resulting in [...] Read more.
This paper investigates the advantages of enhancing construction and demolition waste (CDW) recycling facilities to conform to circular economy (CE) models in Kazakhstan’s construction sector. The industry is experiencing significant growth due to urbanization, but it faces difficulties managing CDW, frequently resulting in landfill disposal. In response, this paper provides a cost–benefit analysis of upgrading the CDW recycling centres aligned with CE needs. Reflecting legislative changes in Kazakhstan’s Environmental Code, which prohibited CDW in landfills starting December 2020, the initiative to establish modern CDW recycling centres is gaining momentum in major cities. The primary objective is to maximize material recovery and eliminate contaminants that curtail the utilization of recycled sand and aggregate products. The analysis yields compelling results, indicating that the project has the potential to recycle up to 84 million tons of CDW over eight years, with an annual 25% capacity increase and a maximum possible 95% recycling efficiency. Despite an estimated cost of USD 48 million, the project demonstrates a payback period of 9.9 years, signalling eventual cost recovery. These findings underscore the project’s capacity to mitigate CDW issues while generating economic benefits and contributing to a sustainable environment. In conclusion, implementing modern CDW recycling centres in Kazakhstan represents a potent solution for the construction industry as it transitions toward a CE model. This transition addresses both pressing environmental challenges and promising economic prospects. Full article
(This article belongs to the Special Issue Sustainable Management in Eco-Materials, Industrial Residues and Construction and Demolition Waste)
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12 pages, 4173 KiB  
Article
Properties of High-Flowability Liquefied Stabilized Soil Made of Recycled Construction Sludge
by Yuji Shigematsu, Shinya Inazumi, Susit Chaiprakaikeow and Supakij Nontananandh
Recycling 2023, 8(5), 67; https://doi.org/10.3390/recycling8050067 - 30 Aug 2023
Cited by 2 | Viewed by 1785
Abstract
This paper focuses on the development of high-flowability liquefied stabilized soils (HFLSS) made of recycled construction sludge (RCS) to enhance their application in construction work. Liquefied stabilized soils (LSSs) have already found widespread use in construction sites, particularly for filling long-distance structures and [...] Read more.
This paper focuses on the development of high-flowability liquefied stabilized soils (HFLSS) made of recycled construction sludge (RCS) to enhance their application in construction work. Liquefied stabilized soils (LSSs) have already found widespread use in construction sites, particularly for filling long-distance structures and dealing with complex underground spaces. However, to further optimize their performance, the development of high-flowability liquefied stabilized soils (HFLSSs) with superior flowability is required. This study experimentally investigates the basic properties, including mechanical characteristics and flowability performance, of the newly developed HFLSS made of RCS. The results confirm that the developed HFLSS made of RCS meets the quality requirements expected from LSSs and exhibits enhanced flowability, making it a promising material for construction applications. The advanced development of LSSs in this paper expects to promote recycling construction-generated soils, including construction-generated sludges in the construction industry. Full article
(This article belongs to the Special Issue Sustainable Management in Eco-Materials, Industrial Residues and Construction and Demolition Waste)
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Review

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24 pages, 14429 KiB  
Review
Circularity Outlines in the Construction and Demolition Waste Management: A Literature Review
by Izabella-Eva Gherman, Elena-Simina Lakatos, Sorin Dan Clinci, Florin Lungu, Vladut Vasile Constandoiu, Lucian Ionel Cioca and Elena Cristina Rada
Recycling 2023, 8(5), 69; https://doi.org/10.3390/recycling8050069 - 11 Sep 2023
Cited by 2 | Viewed by 3538
Abstract
This study provides a comprehensive view of the research field of construction and demolition waste (CDW) management in the circular economy based on a literature review. The increased intensity of interest is due to the need to create frameworks, mechanisms, and tools for [...] Read more.
This study provides a comprehensive view of the research field of construction and demolition waste (CDW) management in the circular economy based on a literature review. The increased intensity of interest is due to the need to create frameworks, mechanisms, and tools for the process of mind-shifting towards circularity. Research topics, researched life cycle stages, strategies for CDW management, sustainability assessment, building stock quantification, assessment tools and forecast methods, materials with CDW content, waste treatment solutions, and the barriers and drivers for efficient waste management in the construction industry are identified as the main concerns in the analyzed research field. The results show that a major concern in the academic field directs research to the path of innovative strategy elaboration, identifying the enablers and barriers in CDW management, computational tool creation for design and assessment, building stock modeling, and circular building material development. The environmental approach prevails, leaving economic and social assessments in CDW management uncovered. Although stakeholders’ involvement is stressed in most cases, strategies for awareness-raising and education for a sustainable circular activity in the field are lacking. The circularity of CDW management being a multifaceted and multi-disciplinary complex challenge, it is approached on different levels. This study introduces the novelty of structuring the trends of existing knowledge in a holistic view, identifying the research directions, dimensions, specific aspects, and instruments. Full article
(This article belongs to the Special Issue Sustainable Management in Eco-Materials, Industrial Residues and Construction and Demolition Waste)
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