article · International Journal of Civil Engineering
Construction and demolition waste presents a persistent challenge across building projects globally. An investigation into waste reduction practices evaluated the influence of six key factors across 360 construction organisations in Egypt. These factors encompass materials procurement measures, materials procurement models, green building practices, legislation, culture and behaviour, and awareness. Using structural equation modelling, an integrated framework was developed to support waste minimisation targets aligned with Egypt's Vision 2030. The analysis confirmed that all six factors positively affect construction and demolition waste reduction. Green building practices showed the highest importance value and the strongest performance rate among the assessed variables. Conversely, culture and behaviour ranked second in overall importance but recorded the lowest performance rate across the six factors. The framework provides structured recommendations for government authorities and the construction sector to curb site waste.
Construction and demolition debris creates significant environmental and operational burdens worldwide. Identifying which operational practices deliver results helps public authorities and building contractors allocate resources effectively. Showing that workplace culture and behaviour lag behind their recognised importance highlights a clear operational gap, demonstrating that human factors require targeted intervention alongside technical and green building standards.
The integrated framework serves as an evidence-based decision tool for construction enterprises, project managers, and regulatory bodies. As the research delivers statistical modelling and policy guidance rather than a physical product or software platform, it remains at an early stage of operational adoption. Real-world application depends on construction companies embedding these procurement measures, green practices, and workforce behavioural programmes into standard operational workflows.
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Abstract The construction industry is plagued with significant construction and demolition waste (C&DW) generated during various phases of construction projects. This waste has created a universal, pervasive, and enduring problem globally. To propose practical solutions to resolve this consequential issue, this research adopted a quantitative approach in two stages. The first stage involved an online survey, administrated to 360 methodically selected construction organisations working in Egypt, to evaluate the impact of six main factors on C&DW reduction (C&DWR). The six main factors are as follows: (1) materials procurement measures (MPMR); (2) materials procurement models (MPMO); (3) green building practices (GBPR); (4) legislation (LG); (5) culture and behaviour (CB); and (6) awareness (AW). The second stage comprised multivariate statistical analysis via the structural equation modelling (SEM) approach to develop an integrated framework for C&DWR, to support Egypt’s vision 2030. The results revealed that these six factors positively affect C&DWR in Egypt. Additionally, the study found that GBPR has the highest importance value of 0.293 and the highest performance rate of 92.169. However, CB has the second highest importance value of 0.238 whilst it has the lowest performance of 72.08 among the six factors. This paper proposes practical recommendations for the government and the construction sector to reduce the C&DW in support of Egypt's Vision 2030.
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DOI: 10.1007/s40999-022-00793-2
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