Journal Article

Exploring UAE's transition towards circular economy through construction and demolition waste management in the pre-construction stage–A case study approach

Nie, Peng, Dahanayake, Kalani C, Sumanarathna, Nipuni

2024

Overview

PurposeThis paper aims to explore UAE's transition towards circular economy (CE) through construction and demolition waste (CDW) management in the pre-construction stage. The extent of circularity is assessed by five key aspects of CE, such as policies and strategic frameworks, design for waste prevention, design for disassembly or deconstruction, use of prefabricated elements and CDW management plans.Design/methodology/approachMultiple case studies were conducted in the context of the Dubai construction industry (UAE). Three significant and unique construction projects were selected as the cases. Semi-structured interviews were carried out to collect data, and the thematic analysis technique and NVIVO 12 software were used for data analysis.FindingsFindings reveal several positive initiatives towards CE in the UAE context; yet it is identified that the transition is still at the initial stage. Selected case studies, the best-case scenarios of UAE (i.e. influential cases), demonstrated adequate measures in relation to four key CE aspects out of five. For instance, (a) policies and strategic frameworks such as lean standards, green building standards and standards developed by the local authorities, (b) design for waste prevention (e.g. adherence to the 3R principle, and construction planning with BIM), (c) use of prefabricated elements and application of innovative construction technologies (e.g. 3DPC, DfMA) and (d) CDW management planning such as 3R principle were evident. However, the selected cases hardly showcase designing for disassembly or deconstruction.Research limitations/implicationsThe existing CDW practices are mostly conventional, as most constructions in UAE are procured through conventional building materials and methods. Therefore, there is a necessity of encouraging CE principles in CDW management. Even though the transition towards CE was evident in four key CE aspects out of five, the UAE construction industry has yet to adopt more effective CE-based CDW management practices to accelerate the circularity. Hence, it is necessary to enforce standard waste management guidelines, including the 3R principle, to standardise CDW management in UAE and encourage construction practitioners to adhere to CE principles.Originality/valueThe findings of this study provide valuable insights for decision-making processes around CDW management towards a CE. This paper contributes to the literature by bridging the CE concept with CDW management in the pre-construction stage. The study provides insights for industry practitioners for planning CE in terms of policies and strategic frameworks, CDW management planning, construction planning and application of innovative construction technologies.

• Publisher: Emerald Group Publishing Limited
• Subject: Building materials / Case studies / Circular economy / Circularity / Construction industry / Construction industry wastes / Construction materials / Construction planning / Construction standards / Context / Data analysis / Data collection / Decision making / Demolition / Design / Dismantling / Emission standards / Emissions / Environmental impact / Green buildings / Green development / Greenhouse gases / Landfill / Management planning / Policies / Prefabrication / Prevention / Principles / Project engineering / Recycling / Renovation & restoration / Waste disposal / Waste management