Minimizing Construction Waste: Management Practice Strategies across All Project Stages
Received: 8 March 2025 | Revised: 27 April 2025 and 6 May 2025 | Accepted: 8 May 2025 | Online: 2 August 2025
Corresponding author: Ali Hussein Mohammad
Abstract
Construction waste resulting from building projects is one of the most damaging activities for the environment because the former can be produced at any stage of a project. This study emphasizes the importance of waste management and outlines the significant environmental and economic consequences of construction waste, by examining the construction materials that generate the highest percentage of them in construction projects. Additionally, the causes of waste generation in construction projects at each stage was determined, in order to contribute to the development of effective remedial strategies for reducing this type of waste. A quantitative descriptive approach was deployed, distributing a questionnaire to 270 participants from the Iraqi construction industry. Finally, statistical analysis was used to analyze the questionnaire data with SPSS software V.26. The results showed that concrete and aggregate constituted 45%, timber 25%, plaster 15.7%, and soil 9.3%. It was also demonstrated that the main reasons for waste generation in construction projects at different stages are the design and detail complexity, inappropriate material supply, and insufficient material quantities. The most efficient strategies for reducing waste are clarifying drawings, and incorporating renewable resources into designs, ensuring efficient procurement and material handling.
Keywords:
waste construction, waste management practice, quantitative methodDownloads
References
N. H. Hoang et al., "Waste generation, composition, and handling in building-related construction and demolition in Hanoi, Vietnam," Waste Management, vol. 117, pp. 32–41, Nov. 2020. DOI: https://doi.org/10.1016/j.wasman.2020.08.006
I. Aiguobarueghian, U. M. Adanma, and E. Kupa, "Impact of biodegradable plastics on U.S. environmental conservation: A comprehensive review, exploring the effectiveness, challenges, and broader implications of bioplastics in waste management and eco-preservation," Engineering Science & Technology Journal, vol. 5, no. 7, pp. 2157–2185, Jul. 2024. DOI: https://doi.org/10.51594/estj.v5i7.1309
R. Woodard, "Waste Management in Small and Medium Enterprises (SMEs): Compliance with Duty of Care and implications for the Circular Economy," Journal of Cleaner Production, vol. 278, Jan. 2021, Art. no. 123770. DOI: https://doi.org/10.1016/j.jclepro.2020.123770
K. Kabirifar, M. Mojtahedi, C. Wang, and V. W. Y. Tam, "Construction and demolition waste management contributing factors coupled with reduce, reuse, and recycle strategies for effective waste management: A review," Journal of Cleaner Production, vol. 263, Aug. 2020, Art. no. 121265. DOI: https://doi.org/10.1016/j.jclepro.2020.121265
"Iraq - Industry, Value Added (% Of GDP) - 2025 Data 2026 Forecast 1968-2023 Historical," Trading Economics. https://tradingeconomics.com/iraq/industry-value-added-percent-of-gdp-wb-data.html.
Public Sector Building and Construction Statistics Report. Directorate of Building and Construction Statistics at the General Authority for Statistics and Geographic Information Systems, 2023.
C. Birkle, D. A. Pendlebury, J. Schnell, and J. Adams, "Web of Science as a data source for research on scientific and scholarly activity," Quantitative Science Studies, vol. 1, no. 1, pp. 363–376, Feb. 2020. DOI: https://doi.org/10.1162/qss_a_00018
M. Osmani and P. Villoria-Sáez, "Current and Emerging Construction Waste Management Status, Trends and Approaches," in Waste (Second Edition), T. M. Letcher and D. A. Vallero, Eds. Academic Press, 2019, pp. 365–380. DOI: https://doi.org/10.1016/B978-0-12-815060-3.00019-0
M. Amsale, "Concrete and Concrete Making Materials Wastage Minimization in Construction of Housing project in Bole Bulbula site," M.S. thesis, Addis Ababa Science and Technology University, Addis Ababa, Ethiopia, 2017.
E. N. Shaqour and R. T. Almashhour, "Causes of Building Material Waste in Construction Sites," Journal of the Egyptian Society of Engineers, vol. 59, no. 1, pp. 3–9, 2020.
H. Arshad, M. Qasim, J. Thaheem, and H. F. Gabriel, "Quantification of material wastage in construction industry of Pakistan: an analytical relationship between building types and waste generation," Journal of Construction in Developing Countries, vol. 22, no. 2, pp. 19–34, Jan. 2017. DOI: https://doi.org/10.21315/jcdc2017.22.2.2
A. Aboginije, C. Aigbavboa, and W. Thwala, "A Holistic Assessment of Construction and Demolition Waste Management in the Nigerian Construction Projects," Sustainability, vol. 13, no. 11, Jan. 2021, Art. no. 6241. DOI: https://doi.org/10.3390/su13116241
C. S. Poon, A. T. W. Yu, and L. H. Ng, "On-site sorting of construction and demolition waste in Hong Kong," Resources, Conservation and Recycling, vol. 32, no. 2, pp. 157–172, Jun. 2001. DOI: https://doi.org/10.1016/S0921-3449(01)00052-0
A. Nawaz, J. Chen, and X. Su, "Factors in critical management practices for construction projects waste predictors to C&DW minimization and maximization," Journal of King Saud University - Science, vol. 35, no. 2, Feb. 2023, Art. no. 102512. DOI: https://doi.org/10.1016/j.jksus.2022.102512
M. I. Al-Sari, I. A. Al-Khatib, M. Avraamides, and D. Fatta-Kassinos, "A study on the attitudes and behavioural influence of construction waste management in occupied Palestinian territory," Waste management & research: the journal of the International Solid Wastes and Public Cleansing Association, ISWA, vol. 30, no. 2, pp. 122–136, Feb. 2012. DOI: https://doi.org/10.1177/0734242X11423066
G. A. Bekr, "Study of the Causes and Magnitude of Wastage of Materials on Construction Sites in Jordan," Journal of Construction Engineering, vol. 2014, no. 1, 2014, Art. no. 283298. DOI: https://doi.org/10.1155/2014/283298
A. Al-Hajj and K. and Hamani, "Material Waste in the UAE Construction Industry: Main Causes and Minimization Practices," Architectural Engineering and Design Management, vol. 7, no. 4, pp. 221–235, Nov. 2011. DOI: https://doi.org/10.1080/17452007.2011.594576
A. J. Aboginije, "An assessment of construction and demolition waste management systems in the Nigerian construction industry," Ph.D. dissertation, University of Johannesburg, Johannesburg, South Africa, 2020.
J. Huang, R. Zhao, T. Huang, X. Wang, and M.-L. Tseng, "Sustainable Municipal Solid Waste Disposal in the Belt and Road Initiative: A Preliminary Proposal for Chengdu City," Sustainability, vol. 10, no. 4, Apr. 2018, Art. no. 1147. DOI: https://doi.org/10.3390/su10041147
S. M. Elgizawy, S. M. El-Haggar, and K. Nassar, "Approaching Sustainability of Construction and Demolition Waste Using Zero Waste Concept," Low Carbon Economy, vol. 7, no. 1, pp. 1–11, Mar. 2016. DOI: https://doi.org/10.4236/lce.2016.71001
N. Islam, M. Sandanayake, S. Muthukumaran, and D. Navaratna, "Review on Sustainable Construction and Demolition Waste Management—Challenges and Research Prospects," Sustainability, vol. 16, no. 8, Jan. 2024, Art. no. 3289. DOI: https://doi.org/10.3390/su16083289
T. O. Adewuyi and I. A. Odesola, "Material Waste Minimisation Strategies among Construction Firms in South-South, Nigeria," International Journal of Sustainable Construction Engineering and Technology, vol. 7, no. 1, pp. 11–29, Feb. 2016.
S. O. Ajayi et al., "Waste effectiveness of the construction industry: Understanding the impediments and requisites for improvements," Resources, Conservation and Recycling, vol. 102, pp. 101–112, Sep. 2015. DOI: https://doi.org/10.1016/j.resconrec.2015.06.001
S. O. Ajayi et al., "Attributes of design for construction waste minimization: A case study of waste-to-energy project," Renewable and Sustainable Energy Reviews, vol. 73, pp. 1333–1341, Jun. 2017. DOI: https://doi.org/10.1016/j.rser.2017.01.084
S. Tafesse, "Material waste minimization techniques in building construction projects," Ethiopian Journal of Science and Technology, vol. 14, no. 1, pp. 1–19, Jan. 2021. DOI: https://doi.org/10.4314/ejst.v14i1.1
R. Heale and A. Twycross, "Validity and reliability in quantitative studies," Evidence-Based Nursing, vol. 18, no. 3, pp. 66–67, Jul. 2015. DOI: https://doi.org/10.1136/eb-2015-102129
O. P. Akadiri, "Development of a multi-criteria approach for the selection of sustainable materials for building projects," Ph.D. dissertation, University of Wolverhampton, Wolverhampton, UK, 2011.
C. Luangcharoenrat, S. Intrachooto, V. Peansupap, and W. Sutthinarakorn, "Factors Influencing Construction Waste Generation in Building Construction: Thailand’s Perspective," Sustainability, vol. 11, no. 13, Jan. 2019, Art. no. 3638. DOI: https://doi.org/10.3390/su11133638
C. M. Rose and J. A. Stegemann, "From Waste Management to Component Management in the Construction Industry," Sustainability, vol. 10, no. 1, Jan. 2018, Art. no. 229. DOI: https://doi.org/10.3390/su10010229
J. Liu, Y. Yi, and X. Wang, "Exploring factors influencing construction waste reduction: A structural equation modeling approach," Journal of Cleaner Production, vol. 276, Dec. 2020, Art. no. 123185. DOI: https://doi.org/10.1016/j.jclepro.2020.123185
E. C. Eze, I. A. Awodele, and S. I. Egwunatum, "Labour–specific factors influencing the volume of construction waste generation in the construction industry," Journal of Project Management Practice, vol. 1, no. 2, pp. 1–16, Dec. 2021. DOI: https://doi.org/10.22452/jpmp.vol1no2.1
F. Jalaei, Zoghi ,Milad, and A. and Khoshand, "Life cycle environmental impact assessment to manage and optimize construction waste using Building Information Modeling (BIM)," International Journal of Construction Management, vol. 21, no. 8, pp. 784–801, Jun. 2021. DOI: https://doi.org/10.1080/15623599.2019.1583850
P. M. Naik and B. V. Birajdar, "Critical Analysis of Material Wastage Standards for Construction Projects -Site Observations on Basic Construction Materials Wastage and Remedies," International Research Journal of Engineering and Technology (IRJET), vol. 07, no. 12, pp. 677–697, Jan. 2020.
Z. Bao, W. M. W. Lee, and W. Lu, "Implementing on-site construction waste recycling in Hong Kong: Barriers and facilitators," Science of The Total Environment, vol. 747, Dec. 2020, Art. no 141091. DOI: https://doi.org/10.1016/j.scitotenv.2020.141091
D. Han et al., "Research on recycling and key technologies of construction waste," E3S Web of Conferences, vol. 490, 2024, Art. no. 03012. DOI: https://doi.org/10.1051/e3sconf/202449003012
S. Nagapan et al., "Preliminary Survey on the Crucial Root Causes of Material Waste Generation in Malaysian Construction Industry," Engineering, Technology & Applied Science Research, vol. 8, no. 6, pp. 3580–3584, Dec. 2018. DOI: https://doi.org/10.48084/etasr.2388
A. M. Al-Zubaidy, "Major factors contributing to the construction waste generation in building projects of Iraq," MATEC Web of Conferences, vol. 162, 2018, Art. no. 02034. DOI: https://doi.org/10.1051/matecconf/201816202034
M. M. Mahdi and N. S. Ali, "Reducing Waste of Construction Materials in Civil Engineering Projects In Iraq," Zanco Journal of Pure and Applied Sciences, vol. 31, no. s3, Aug. 2019. DOI: https://doi.org/10.21271/ZJPAS.31.s3.35
S. A. M. Alkaabi and H. Kh. B. Al-Agele, "A Study of Waste Management Reality in Construction Projects in Iraq," Wasit Journal of Engineering Sciences, vol. 4, no. 1, pp. 76–92, Jan. 2016.
A. Hussain, "Evaluating Waste Material Among Construction Project: Identify Reason Waste and Suggestion Improvement Designer, Contractor and Client Practice," Journal of Korean Society of Environmental Engineers, vol. 43, no. 6, pp. 453–460, Jun. 2021. DOI: https://doi.org/10.4491/KSEE.2021.43.6.453
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