The construction sector in the United Arab Emirates (UAE) is expanding substantially due to many variables, including strong economic growth, a swiftly growing population, and continuous modernization endeavors. As a result, the development of the construction industry is leading to adverse impacts on energy consumption and environmental conditions. The UAE government and policymakers have implemented significant initiatives to advance sustainable infrastructure, promote clean energy utilization, effectively manage construction and demolition waste (CDW), and foster green building development. These measures follow the nation’s dedication to the Paris Agreement, which aims to decrease greenhouse gas (GHG) emissions. The article comprehensively examines the policies and practices implemented in this industrialized nation concerning sustainable construction. Moreover, the primary objective of this study is to evaluate the performance of the UAE in comparison to other countries within the Gulf Cooperation Council (GCC) concerning their accomplishments in sustainability. Additionally, the study seeks to integrate insights from the global community regarding sustainability policies, Sustainable Development Goals (SDGs), the effective management of CDW, and the implementation of green regulations that govern environmentally conscious construction practices. A comprehensive analysis of information sources from official websites, particularly those of the ministry and key government agencies, is conducted to better understand the current sustainability policies and treatment methods related to the management of CDW and green building regulations.

Energy use and related greenhouse gas emissions of buildings have a significant effect on the environment. To reduce energy consumption in buildings, it is important to understand energy use occurring across the building life cycle. While previous studies have shown the significance of both the energy required for building operation as well as the energy embodied in initial building construction, an understanding of the total energy embodied in replacement materials over a building's life is not as well developed. One of the key factors affecting this ‘recurring’ embodied energy is the service life of materials. The aim of this study was to investigate the relationship between the service life of materials and the life cycle energy demand associated with contemporary residential buildings in Australia. The initial embodied energy, operational energy and recurrent embodied energy of a detached residential building were calculated with material service life values based on average figures obtained from the literature. These values were then varied to reflect the extent of service life variability likely for a selection of the main building materials and recurring embodied energy recalculated for each scenario. Selected materials of the building were then replaced with commonly used alternatives and the building's initial and recurrent embodied energy recalculated for a range of materials service life scenarios. The results from this initial study indicate that the service life of materials can have a considerable effect on total energy demand associated with a building over its life. This demonstrates the need for further clarity around the service life of materials and the importance of considering the durability of materials when designing and managing buildings for improved energy efficiency. Results from this study also suggest the importance of including the recurrent embodied energy of buildings in building life cycle energy analyses, which in this case represented between 19 and 31% of the life cycle energy of the building as built and 21 and 34% with the use of alternative materials.

Purpose: This study reviews policies, green building regulations, key performance indicators (KPIs) and management methods related to construction and demolition waste (CDW) in the United Arab Emirates (UAE). It aims to develop a holistic framework based on the 3R (reduce, reuse and recycle) principles to assess the current status of circular economy (CE) deployment and identify key determinants for efficient CDW management.Design/methodology/approach: A mixed-method approach was used, including desk-based searches, systematic literature reviews and searches of official government websites to review existing CDW management policies and methods in the UAE. Scholarly databases were reviewed to identify CDW management challenges from a 3R perspective. A conceptual CE framework based on the 3R principles was developed using the study's findings.Findings: The study provides a comprehensive review of CDW management in the UAE, analyzing associated management challenges in the construction sector. It proposes a holistic 3R principles-based framework, emphasizing strategic steps in the building lifecycle, site waste management (SWM) plans, drivers for circular construction and systematic adoption guidelines for effective CE deployment to achieve sustainable CDW management in the UAE construction sector.Originality/value: This study explores existing policies and challenges in CDW management in the UAE and offers a 3R principles-based framework for CE deployment in the construction sector. It provides valuable insights for manufacturers of recycled products and for integrating circularity into construction projects’ design and procurement processes.

Energy use in the building sector is considered among major contributors of greenhouse gas emissions and related environmental impacts. While striving to reduce the energy consumption from this sector, it is important to avoid burden shifting from one building life cycle stage to another; thus, this requires a good understanding of the energy consumption across the building life cycle. The literature shows greater emphasis on operational energy reduction but less on embodied energy, although both have a clear impact on the building’s footprint and associated environmental impact. In previous studies the importance these energy aspects have been presented; however, the critical role of embodied energy linked to the replacement of materials over a building’s life is not well documented. Therefore, there is a knowledge gap in the available the literature about the ways to reduce the embodied energy requirements of buildings over their useful life. Service life of buildings and their constituent materials may play an important role in this regard. However, their potential role in this respect have not been explored in the previous research. This study critically addresses the above-mentioned gaps in the literature by investigating the combined effect of building and material service life on life cycle embodied energy requirements of residential buildings. Life cycle embodied energy of a case study house for an assessment period of 150 years was calculated based on minimum, average and maximum material service life values for the building service life of 50, 100 and 150 years. A comprehensive input–output hybrid analysis based on the bill of quantities was used for the embodied energy assessment of the initial and recurrent embodied energy calculation for each scenario. The combined effect of building and material service life variations was shown to result in a reduction in the life cycle embodied energy demand in the order of up to 61%. This provides quantifiable and verifiable data that shows the importance of building and material service life considerations in designing, constructing, and managing the buildings in efforts to reduce energy consumption by buildings. A secondary contribution of this paper is a detailed sensitivity analysis which was carried out by varying the material service life values of each building material and the embodied energies for each new scenario was recalculated for two assessment periods. The findings show that, for each material service life variation, the LCEE increases as BSL increases for a 50-year assessment period, but the LCEE decreases for a 150-year assessment period.

Traditional teaching methods in construction management education often face challenges in providing students with practical, real-world experiences crucial for skill development. To address these limitations, this study explores the potential of integrating building information modeling (BIM) and virtual reality (VR) as educational tools for construction management students. Our aim is to assess the effectiveness of a 4D-BIM-based VR simulation in enhancing student’s learning experiences and performance in construction project management. This research employs a mixed-method approach, combining quantitative data and qualitative insights from a comparative experiment involving undergraduate students. Quantitative data were collected through objective error detection measures in construction sequences and processes, while qualitative insights were gathered from participant feedback. The findings highlight that students using VR-based simulations detected more errors in construction sequences and processes than in traditional 2D drawings, showcasing the utility of BIM and VR-enabled approaches in teaching construction management. This study contributes to the ongoing discourse on integrating advanced technologies into educational practices, particularly in construction management, where practical hands-on experiences are crucial for skill development and real-world application.