3D Printing for Sustainable Infrastructure: A Review of Technological Advances, Opportunities and Barriers to Adoption

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

🔬研究者:Identifies research gaps in durability, standards, and materials for 3D-printed infrastructure.

🏛政策担当者:Highlights the need for regulatory frameworks and design codes to enable adoption.

Infrastructure systems is a major physical network that enable system functioning, economic development, and improved quality of life. These systems include transportation networks, water and wastewater systems, energy distribution, and telecommunications. However, conventional infrastructure construction faces escalating sustainability challenges including massive material consumption, substantial carbon emissions, extended construction timelines, high costs, and growing maintenance backlogs. These multifaceted challenges have necessitated the need to search for technologies that can simultaneously accelerate construction, reduce environmental impacts, lower costs, and enhance infrastructure performance and resilience. The intervention of the three-dimensional (3D) printing technology, also termed construction-scale additive manufacturing, has emerged as a potentially transformative approach to infrastructure development. 3D printing offers capabilities for rapid construction, geometric optimization, material efficiency, and integration of sustainable materials. This review article provides a comprehensive analysis of 3D printing applications in sustainable infrastructure development, examining both the substantial opportunities and persistent challenges confronting the technology's widespread adoption. This review was conducted using secondary sources, including previously published journal articles, books, and conference papers. Key opportunities identified include 30-60% material reduction through topology optimization, 50-70% construction time reduction for specific applications, enabling use of recycled aggregates and industrial by-products up to 100% replacement levels, geometric design flexibility enabling structurally optimized forms, and potential for rapid deployment in disaster response and remote locations. However, significant challenges persist encompassing limited long-term durability data for printed structures, absence of comprehensive design codes and standards, high initial capital investment requirements, limited material palette constraining applications, anisotropic mechanical properties from layer-by-layer construction, reinforcement integration difficulties, scale limitations, quality assurance complexities, workforce skill gaps, and regulatory approval barriers. In essence, while 3D printing offers genuine and substantial opportunities for advancing sustainable infrastructure, realizing this potential requires concerted efforts in research and development, standardization, workforce development, regulatory framework establishment, and strategic integration within broader sustainable infrastructure planning approaches. Future studies should focus on improving the long-term durability, structural performance, and sustainability of 3D-printed infrastructure materials under varying environmental and loading conditions. Moreover, research is also needed on the development of standardized design codes, quality control protocols, and regulatory frameworks to support wider industrial adoption of construction-scale additive manufacturing.

• semanticscholar https://doi.org/10.9734/cjast/2026/v45i54697first seen 2026-07-16 06:54:43