Towards achieving circular economy in the Nigerian construction industry: policymakers perspectives and conceptual framework development

Smart and Sustainable Built Environment, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 13, 2025

Purpose The construction industry faces significant challenges in managing waste and resource inefficiency, contributing to environmental degradation unsustainable practices. Despite the potential of circular economy (CE) practices address these issues, there is limited understanding inadequate policy support for their effective implementation. This study investigates perspectives policymakers on achieving CE Nigerian industry. Specifically, this examines policymakers’ CE, key influencing policies, encountered implementing how policies can transition CE. Design/methodology/approach adopts a qualitative approach explore towards About 50 participants were purposively selected participate provide comprehensive data study. Saturation was attained 34th participants. analysed using thematic analysis identify themes insights. Findings identified gaps hindering policymakers' implementation include financial constraints, resistance change, regulatory frameworks, lack infrastructure, skill weak enforcement mechanisms. Recommendations improvement incentives, updated building codes, enhanced enforcement, mandatory education training programmes increased collaboration between government, academia. A conceptual framework developed promote Originality/value first examine industry, offering unique insights practical recommendations. adds structured practices, research developing countries providing robust foundation future studies expand scope employ quantitative methods measure impact

Language: Английский

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Dynamic Imine Bonds in Tire Tread Compounds: A Pathway to a Circular Economy and Reduced Waste

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 15, 2025

The tire industry is in constant transformation toward the development of more sustainable products while maintaining high performance. Nowadays, one most used strategies implementation circular economy (CE) model, based on reuse products, recycling, and conservation natural resources. One main goals introducing CE model to reduce amount end life tires (ELTs) that accumulate every year. For this, improvement recycling process these great importance. To face this challenge, research aims improve recyclability rubber by a novel approach apply dynamic imine bonds for silica–rubber coupling tread compounds as an alternative state-of-the-art silica/silane covalent coupling. formation new using bond was achieved reaction amine different aromatic aldehydes. Rubber with system show decrease wet grip indicator but improved mechanical performance, rolling resistance, superior fatigue behavior, potential compared compounds.

Language: Английский

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An Indicator-Based Framework of Circular Cities Focused on Sustainability Dimensions and Sustainable Development Goal 11 Obtained Using Machine Learning and Text Analytics

Sustainable Cities and Society, Journal Year: 2025, Volume and Issue: unknown, P. 106219 - 106219

Published: Feb. 1, 2025

Language: Английский

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Upcycling of medium-density fiberboard and polyurethane foam wastes into novel composite materials

Resources Conservation & Recycling Advances, Journal Year: 2025, Volume and Issue: unknown, P. 200244 - 200244

Published: Jan. 1, 2025

Language: Английский

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How decarbonization and the circular economy interact: Benefits and trade‐offs in the case of the buildings, transport, and electricity sectors in Austria

Journal of Industrial Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 31, 2025

Abstract The widely heralded decarbonization of economies is a significant intervention in countries' societal metabolism, which eliminates the use fossil fuels but also requires renewing stocks such as buildings, vehicles, and power plants, turn materials energy. circular economy (CE) shifts country's metabolism toward less material demand, waste, emissions, moving away from linear resource flow pattern to one that narrows slows flows closes loops, order support climate protection. This article uses example Austria examine how CE interact transport, electricity sectors. We scenarios analyze contribution strategies achieve targets set by Austrian policy: (1) carbon neutrality 2040, (2) ambitious reductions consumption, (3) limiting annual land take. A scenario focusing on “decarbonization” alone reduces processed 7% compared reference scenario, associated with high risks: it large supplies green electricity, technology‐critical elements, smooth permitting procedures. “weak CE” shows little mitigating effects these risks. take are missed two scenarios. Avoiding further expansion buildings roads unbuilt part “strong identified key narrow respective sectors 102 26 Mt/a consistent all three policy targets. It inter alia demand for facilitating additionally generating co‐benefits health.

Language: Английский

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Exploring Challenges in SDGs with Focus on the Complementarity of Sustainable Growth, Equality, and Consumption

Inproforum ..., Journal Year: 2025, Volume and Issue: 18, P. 245 - 250

Published: Feb. 5, 2025

Language: Английский

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Inconsistencies revealed: A critical analysis of circular economy assessment methods for buildings

Resources Conservation and Recycling, Journal Year: 2025, Volume and Issue: 218, P. 108203 - 108203

Published: March 4, 2025

Language: Английский

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Construction and demolition waste circulation and its sustainability performance in the building sector: current trend and future directions

Engineering Construction & Architectural Management, Journal Year: 2025, Volume and Issue: unknown

Published: March 17, 2025

Purpose The building industry generates around ten billion tons of construction and demolition waste (CDW) annually worldwide, posing both financial burdens on contractors significant environmental hazards. Embracing a circular economy (CE) approach emerges as promising strategy for sustainably managing the vast volumes CDW. However, sustainable performance many attempts in CDW circulation is still questioned need to be justified. This study transcends traditional reviews by adopting systematic literature review, focusing central question: “What’s contribution 3R principle its sustainability performance?” Design/methodology/approach methodological framework encompasses searching, screening quality assessment, culminating selection 177 articles bibliometric integrative analysis. Comparative assessments were conducted major reduction strategies, reuse materials, recycling rates other strategies. process was also discussed well modern advanced tools used design such information model (BIM), AI geographic systems (GIS). Findings analysis reveals evolution selected publications year, country research hotspots. Through analysis, explored principles adopted circulation, including reduction, recycling, methods across key global economies. There notable disparity volume addressing compared recycling. In comparison economic circulations, social has received less attention. Moreover, ventured into prospective trajectories, exploring future themes adoption “zero-waste” industry, promotion higher-level material circularity, institutional network among stakeholders practice, new holistic Originality/value Few this field have focused circulation. comprehensive not only contributes valuable insights current state within CE paradigm but directs attention toward critical avenues area.

Language: Английский

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A multidimensional methodological approach to disassembly index calculation: Enhancing product dismountability and sustainability

Sustainable Production and Consumption, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

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Harvesting Sustainability: Transforming Traditional Agri-Food Supply Chains with Circular Economy in Developing Economies

Cleaner Waste Systems, Journal Year: 2025, Volume and Issue: unknown, P. 100264 - 100264

Published: March 1, 2025

Language: Английский

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