TY  - CONF
TI  - Leaner Construction and Demolition Waste (CDW) Management: Practitioners’ Insights
C1  - Osaka and Kyoto, Japan
C3  - Proceedings of the 33rd Annual Conference of the International Group for Lean Construction (IGLC 33)
SP  - 1173
EP  - 1184
PY  - 2025
DO  - 10.24928/2025/0295
AU  - Alazmi, Saleh
AU  - Piri, Imelda Saran
AU  - Das, Oisik
AU  - Abdelmegid, Mohammed
AU  - Poshdar, Mani
AU  - Gonzalez, Vicente A
AD  - PhD, Department of Civil and Environmental Engineering, The University of Auckland, New Zealand, sala043@aucklanduni.ac.nz
AD  - Lecturer, School of Future Environment, Auckland University of Technology, Auckland, New Zealand, imelda.piri@aut.ac.nz, https://orcid.org/0000-0002-4002-5187
AD  - Professor (bitr), Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, Sweden, oisik.das@ltu.se, https://orcid.org/000-0002-5474-1512
AD  - Lecturer, School of Civil Engineering, University of Leeds, UK, M.Abdelmegid@leeds.ac.uk, https://orcid.org/0000-0001-9132-2985
AD  - Associate Professor, School of Future Environment, Auckland University of Technology, Auckland, New Zealand, mani.poshdar@aut.ac.nz, https://orcid.org/0000-0001-9132-2985
AD  - Professor and Tier 1 Canada Research Chair in Digital Lean Construction, Department of Civil and Environmental Engineering, University of Alberta, Canada, vagonzal@ualberta.ca, https://orcid.org/0000-0003-3408-3863
ED  - Seppänen, Olli 
ED  - Koskela, Lauri 
ED  - Murata , Koichi 
AB  - The construction sector has a substantial impact on the environment, primarily due to its excessive resource and energy consumption, along with significant waste production. Construction accounts for a third of the world's total waste and around 40% of global CO2 emissions. The phases of material production, construction, the facility’s useful life, and end-of-life components have been widely studied for their role in environmental pollution. Whilst minimising waste holds the highest priority in construction waste management, understanding the sources of construction waste can support effective reduction strategies. This paper aims to explore the relationship between the origins of construction and demolition waste (CDW), lean practices, construction productivity, and the associated environmental impacts. A quantitative research method was adopted, using a survey questionnaire to identify correlations between CDW origins, construction productivity, and environmental impacts. Findings revealed that 62% of CDW origins have a greater impact on the environment than on productivity. Additionally, eight specific CDW origins showed statistically significant relationships with the tested environmental variables. These insights can promote evidence-based decision-making by construction practitioners in developing effective strategies for waste minimisation.
KW  - Construction and demolition waste
KW  - Lean construction
KW  - Construction productivity
KW  - Environmental impacts
KW  - Sustainability.
PB  - 
T2  - Proceedings of the 33rd Annual Conference of the International Group for Lean Construction (IGLC 33)
DA  - 2025/06/02
CY  - Osaka and Kyoto, Japan
L1  - http://iglc.net/Papers/Details/2436/pdf
L2  - http://iglc.net/Papers/Details/2436
N1  - Export Date: 02 June 2025
DB  - IGLC.net
DP  - IGLC
LA  - English
ER  -