Environmental feasibility of recycling construction and demolition waste

Atta, I.; Bakhoum, Emad S.

doi:10.1007/s13762-023-05036-y

Cited by 13 publications

(3 citation statements)

References 52 publications

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“…Moreover, in the case of the beneficial use of the steel slag, its disposal (e.g., landfilling) is avoided, meaning that impacts associated with landfilling are prevented. Finally, the use of secondary materials such as steel slag aggregate to substitute natural aggregate results in the preservation of non-renewable (mineral) resources [70,71].…”

Section: The Use Of Eaf C Slag In Road Constructionmentioning

confidence: 99%

Utilisation of Reused Steel and Slag: Analysing the Circular Economy Benefits through Three Case Studies

Cervantes Puma,

Salles,

Turk

et al. 2024

Buildings

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This research explores sustainable construction practices focusing on material reuse, specifically reclaimed structural steel and slag. In general, the building stock is not designed for deconstruction, and material recovery for reuse at the end of life of buildings is complex and challenging. The study evaluates the benefits of content reuse through a thorough analysis of three case studies—BedZED eco-friendly housing, Angus Technopôle building, and the use of steel slag aggregate in road construction. It highlights the value of reclaimed structural steel and by-products like steel slag in waste reduction, energy conservation, and resource preservation. The BedZED case study showcases recycled steel’s cost-effectiveness and economic viability in construction, while the Angus Technopôle building exemplifies the adaptive reuse of an old steel frame building. Additionally, the third case study showcases the benefits of using Electric Arc Furnace C slag in asphalt-wearing courses, highlighting the reduction in greenhouse gas emissions and environmental impact. The versatility of reclaimed structural steel and slag is evident in integrating material reuse in building construction and road infrastructure. These case studies illustrate the potential for reusing steel and its by-products in various construction contexts, from eco-friendly housing to road development. Therefore, the study aims to demonstrate the feasibility and benefits of sustainable practices within the construction industry by showcasing the successful incorporation of reclaimed steel and slag in these projects. Considering the significant contributions of building construction to global greenhouse gas emissions, raw material extraction, and waste production, the study advocates for adopting circular economy (CE) principles within the construction industry. Finally, the analysis of case studies underscores the advantages of reclaimed structural steel and the valorisation of steel slag through the lens of CE and their contribution to sustainable development.

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Section: The Use Of Eaf C Slag In Road Constructionmentioning

confidence: 99%

Utilisation of Reused Steel and Slag: Analysing the Circular Economy Benefits through Three Case Studies

Cervantes Puma,

Salles,

Turk

et al. 2024

Buildings

View full text Add to dashboard Cite

show abstract

“…Secondly, demolition waste can leach harmful chemicals and minerals into groundwater, polluting underground water sources [46,49]. Thirdly, waste generation not only involves leftover building materials but also contributes to the wastage of natural resources, increasing energy consumption and the use of construction materials [24,52]. Fourthly, improper waste disposal and deposition instead of utilization contribute to energy consumption and greenhouse gas emissions through transportation [17,53].…”

Section: Variablementioning

confidence: 99%

Environmental Management Framework for Road Network Demolition Wastes for Construction Industry of Pakistan

Shuker Ullah,

Hassan,

Gardezi

2024

Sustainability

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Demolition waste from construction industry, especially from road networks, is one of the most voluminous and harmful categories of waste worldwide; therefore, its proper handling is essential for sustainable waste management for environmental, social, and economic benefits. Prolific and unregulated construction activities, conflicts, and defective works are major reasons. The current work aims to address the issue by presenting a framework for an enhanced understanding of sustainable demolition waste management (DWM). A critical analysis of the literature aided to identify major concerns related to different causes, their impacts, and challenges being faced by the construction industry in such management endeavors. The study adopted questionnaire-based methodology to understand the critical relation among the three variables. The Delphi technique supported by industry professionals and pilot study helped to formulate a realistic questionnaire tool. Using the concept of multivariate statistical analysis, structure equation modeling (SEM) helped to assess the structural relationships between the three variables. The research instrument met the reliability, validity and internal consistency criteria required. Each variable achieved a high effect size, f2, with a value of co-efficient of determination of more than the threshold value of 70%. Thus, this supported the fitness criterion of the SEM-based measurement model. Path coefficients yielded the acceptance of all alternate hypotheses, resulting in a strong positive relationship among the three constructs. Therefore, demolition waste impacts are deemed as an effective mediator when explaining the impact between the other two variables. The developed framework presents a coherent and systematic approach and identifies strategies that could be used to address these issues and lead to DWM, including options available for capacity building and implementation and evaluation for supporting sustainability.

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“…Compared with NA, red bricks and old concrete have poor mechanical properties. Red bricks more easily disintegrate and break after water immersion than old concrete and NA [32]. Therefore, the rational design of cement-stabilized permeable RA materials that meet road use and permeability requirements is challenging and valuable.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Mechanical Properties and Permeability of Cement-Stabilized Permeable Recycle Aggregate Materials

Zhi,

Yang,

Zhang

et al. 2023

Sustainability

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This paper designed cement-stabilized permeable road subgrade materials. Construction demolition waste with recycled aggregate replaced natural aggregate in cement-stabilized materials to utilize recycled resources for construction solid waste. This paper tests the compressive strength, water permeability, bending strength, and compressive resilience modulus of cement-stabilized permeable recycled aggregate materials under different cementitious additive ratios. The results show that at a recycled aggregate proportion of 30% in cement-stabilized permeable recycled aggregate material, the 7-d unconfined compressive strength exceeds 3.5 MPa, and the permeability coefficient surpasses 3.5 mm/s, which can meet the roadbed requirements in China. The incorporation of recycled aggregates significantly reduces the mechanical properties and water permeability of cement-stabilized permeable recycled aggregate materials, while cementitious additives improve the mechanical properties. Specifically, red brick, old concrete, and ceramics in recycled aggregates weaken the mechanical properties of the skeleton structure of cement-stabilized permeable recycled aggregate materials, and the compressive strength, bending strength, and compressive resilience modulus decrease with the recycled aggregate content. Cementitious additives can fill the micro-pores of the interface transition zone of cement-stabilized permeable recycled aggregate materials to improve the cementation strength between aggregates.

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Environmental feasibility of recycling construction and demolition waste

Cited by 13 publications

References 52 publications

Utilisation of Reused Steel and Slag: Analysing the Circular Economy Benefits through Three Case Studies

Utilisation of Reused Steel and Slag: Analysing the Circular Economy Benefits through Three Case Studies

Environmental Management Framework for Road Network Demolition Wastes for Construction Industry of Pakistan

Experimental Study on the Mechanical Properties and Permeability of Cement-Stabilized Permeable Recycle Aggregate Materials

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