This article aims to identify barriers to implementing waste management practices in construction projects and their interrelationship, based on the particular context of Australia. Interviews and a questionnaire survey were conducted as the primary data collection methods supported by the findings of a charrette. The findings reveal twenty critical barriers to implementing waste management practices in Australian construction projects. Four underlying factors that impede waste management practices are extracted based on results of an exploratory factor analysis. These include rigidity of construction practices, construction project characteristics, awareness, experience and commitment, and the nascent nature of waste management. The study also finds that while both human factors and technical factors act as barriers to implementing waste management practices in Australian construction projects, human factors are more dominant. Thus, it is essential to address all these barriers in the early stage of construction projects for reducing waste generation.

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