A case study of the cost-effectiveness and sustainability of 3D-printed concrete structures in marine environments

Abstract

This study explores the capabilities of 3D-printed concrete technology in coastal settings, with a special emphasis on Malta. The main goals are to evaluate the cost-effectiveness, sustainability, and practical feasibility of using 3D-printed concrete in marine environments. The research employs a qualitative approach, utilizing Thematic Analysis to analyze data collected from an extensive desktop study and structured interviews with industry professionals. The findings highlight several advantages of 3D-printed concrete, including significant reductions in labor costs, minimized material waste, increased efficiency in construction timelines, and the capability to create customized mixtures tailored to environmental conditions. These benefits support the construction of more sustainable and durable structures in marine settings. Despite these promising outcomes, the dissertation also addresses critical challenges that may hinder the technology's widespread adoption. High initial setup and equipment costs, the scarcity of locally trained professionals, and regulatory deficiencies remain substantial barriers. Additionally, concerns about the durability of 3D-printed structures in harsh marine environments call for further research and pilot testing to ensure long-term performance. The study advocates for strategic investment in training, the development of comprehensive regulatory frameworks, and the implementation of pilot projects. By overcoming these challenges, 3D-printed concrete could revolutionize construction practices in coastal areas, promoting sustainable development and innovative, efficient building solutions.