@article{10902/29149, year = {2023}, month = {5}, url = {https://hdl.handle.net/10902/29149}, abstract = {A comparison between low-clinker cement and geopolymer mortars for their application in 3D printing is discussed in this paper. The mortars are composed of materials with low environmental impact, such as cements with low clinker content, by-products of the industry and recycled aggregates. The developed mortars were both mechanically and rheologically characterised. The environmental impact was studied by LCA. To select the most suitable dosages, MCDM analysis was applied based on cost of materials, printability and LCA. Compressive strength was considered as a normalising parameter for both the LCA and cost. The mortars showed good printability and suitable mechanical strength, being higher in the cement mortars. The LCA showed that the geopolymer mortars have a higher environmental impact due to the use of sodium hydroxide. Likewise, MCDM revealed that low-clinker cement mortars are at the top of the ranking, due to a lower environmental impact and lower cost of materials.}, organization = {This work has been co-financed by the European Regional Development Fund through the Interreg Atlantic Area Programme, under the project 3DPARE (EAPA_174/2016). This work reflects the authors’ opinion, so the authorities of the programme are not responsible for the use of the information here included.}, publisher = {Taylor & Francis}, publisher = {Journal of Sustainable Cement-Based Materials, 2023, 12(5), 609-626}, title = {Life cycle assessment (LCA) and multi-criteria decision-making (MCDM) analysis to determine the performance of 3D printed cement mortars and geopolymers}, author = {Yoris Nóbile, Adrián Isidro and Lizasoain Arteaga, Esther and Slebi Acevedo, Carlos José and Blanco Fernández, Elena and Alonso Cañón, Sara and Indacoechea Vega, Irune and Castro Fresno, Daniel}, }