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How does the use of 3D printing technology in road construction affect the environmental impact compared to traditional methods?

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Carbon footprint

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The utilization of 3D printing technology in road construction can significantly impact the environment compared to traditional methods. 3D concrete printing offers the potential for a more sustainable built environment by reducing carbon emissions through the optimization of materials. Life Cycle Assessment (LCA) studies have shown that the high cement consumption in 3D concrete printing contributes significantly to environmental impacts, emphasizing the importance of exploring alternative materials like supplementary cementitious materials (SCM). Additionally, the use of innovative materials such as Magnesium Potassium Phosphate Cement (MKPC) can further decrease energy consumption and environmental effects in building construction. The shift towards additive manufacturing in construction, including road infrastructure, presents opportunities for green financing and the implementation of eco-friendly practices, contributing to a more sustainable and environmentally conscious approach to construction projects.

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Open access•Proceedings Article•DOI Three-Dimensional, Printable Paving Stone: A Preliminary Study Volkan Arslan, Zekeriya Dogan - Show less +1 more 14 Feb 2023	The use of 3D printing in road construction can reduce environmental impact by offering higher precision, faster construction, and lower material waste compared to traditional methods, promoting sustainability.
Open access•Journal Article•DOI Green principles of ecological safety of transport construction Ekaterina Shestakova, P. V. Shestakov - Show less +1 more 01 Jan 2023-E3S web of conferences	The use of 3D concrete printing in transport construction reduces environmental impact by enabling green financing, additive manufacturing, and eco-concrete noise protection walls, promoting a shift towards a closed-loop economy.
Open access•Journal Article•DOI 3D Construction Printing Standing for Sustainability and Circularity: Material-Level Opportunities Mariana Fonseca, Ana Mafalda Matos - Show less +1 more 01 Mar 2023-Materials 1 Citations	Not addressed in the paper.
Open access•Journal Article•DOI Energy simulation and life cycle assessment of a 3D printable building Mohammadreza Khalili Tari, Amir Reza Faraji, Alireza Aslani, Rahim Zahedi - Show less +3 more 01 Mar 2023-Cleaner materials 2 Citations	Not addressed in the paper.
Journal Article•DOI Environmental evaluation of 3D printed concrete walls considering the life cycle perspective in the context of social housing Letícia Ikeda Castrillon Fernandez, Lucas Rosse Caldas, Oscar Aurelio Mendoza Reales - Show less +2 more 01 May 2023-Journal of building engineering	Not addressed in the paper.

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