{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T01:30:24Z","timestamp":1760059824315,"version":"build-2065373602"},"reference-count":35,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2025,7,18]],"date-time":"2025-07-18T00:00:00Z","timestamp":1752796800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100018693","name":"Horizon Europe CircSyst project","doi-asserted-by":"publisher","award":["101135505"],"award-info":[{"award-number":["101135505"]}],"id":[{"id":"10.13039\/100018693","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Additive manufacturing (AM) has brought significant breakthroughs to the construction sector, such as the ability to fabricate complex geometries, enhance efficiency, and reduce both material usage and construction waste. However, several challenges must still be addressed to fully transition from conventional construction practices to innovative and sustainable green alternatives. This study investigates the use of non-cementitious traditional mixtures for green construction applications through 3D printing using Liquid Deposition Modeling (LDM) technology. To explore the development of mixtures with enhanced physical and mechanical properties, natural pine and cypress wood shavings were added in varying proportions (1%, 3%, and 5%) as sustainable additives. The aim of this study is twofold: first, to demonstrate the printability of these eco-friendly mortars that can be used for conservation purposes and overcome the challenges of incorporating bio-products in 3D printing; and second, to develop sustainable composites that align with the objectives of the European Green Deal, offering low-emission construction solutions. The proposed mortars use hydrated lime and natural pozzolan as binders, river sand as an aggregate, and a polycarboxylate superplasticizer. While most studies with bio-products focus on traditional methods, this research provides proof of concept for their use in 3D printing. The study results indicate that, at low percentages, both additives had minimal effect on the physical and mechanical properties of the tested mortars, whereas higher percentages led to progressively more significant deterioration. Additionally, compared to molded specimens, the 3D-printed mortars exhibited slightly reduced mechanical strength and increased porosity, attributable to insufficient compaction during the printing process.<\/jats:p>","DOI":"10.3390\/ma18143375","type":"journal-article","created":{"date-parts":[[2025,7,18]],"date-time":"2025-07-18T10:10:38Z","timestamp":1752833438000},"page":"3375","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Mechanical Properties of Bio-Printed Mortars with Bio-Additives for Green and Sustainable Construction"],"prefix":"10.3390","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-4416-0813","authenticated-orcid":false,"given":"Sotirios","family":"Pemas","sequence":"first","affiliation":[{"name":"Centre for Research and Technology Hellas, Information Technologies Institute, 6th km Charilaou-Thermi Road, 57001 Thessaloniki, Greece"}]},{"given":"Dimitrios","family":"Baliakas","sequence":"additional","affiliation":[{"name":"Laboratory of Building Materials, School of Civil Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6385-2815","authenticated-orcid":false,"given":"Eleftheria Maria","family":"Pechlivani","sequence":"additional","affiliation":[{"name":"Centre for Research and Technology Hellas, Information Technologies Institute, 6th km Charilaou-Thermi Road, 57001 Thessaloniki, Greece"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1428-9533","authenticated-orcid":false,"given":"Maria","family":"Stefanidou","sequence":"additional","affiliation":[{"name":"Laboratory of Building Materials, School of Civil Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece"}]}],"member":"1968","published-online":{"date-parts":[[2025,7,18]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Mohsen, M.O., Al-Diseet, M.M., Aburumman, M.O., Taha, R., Taqa, A.A., Senouci, A., and Naji, K. (2023). 3D-Printed Clay Enhanced with Graphene Nanoplatelets for Sustainable and Green Construction. Buildings, 13.","DOI":"10.3390\/buildings13092321"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"408","DOI":"10.1016\/j.matpr.2023.08.013","article-title":"A review of 3d printing technology-the future of sustainable construction","volume":"93","author":"Tabassum","year":"2023","journal-title":"Mater. Today Proc."},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Kostavelis, I., Folinas, D., Aidonis, D., and Achillas, C. (2025). Utilizing LDPE as a Second Life of Waste Plastic Through Pellet Extruder 3D Printing. The Supply Chains, Springer Nature.","DOI":"10.1007\/978-3-031-69344-1"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"25","DOI":"10.1016\/j.cemconres.2018.06.001","article-title":"Vision of 3D printing with concrete\u2014Technical, economic and environmental potentials","volume":"112","author":"Lesage","year":"2018","journal-title":"Cem. Concr. Res."},{"key":"ref_5","doi-asserted-by":"crossref","unstructured":"Pemas, S., Sougioultzi, K., Kouroutzidou, C., Stefanidou, M., Konstantinidis, A.A., and Pechlivani, E.M. (2024). Enhancing Clay-Based 3D-Printed Mortars with Polymeric Mesh Reinforcement Techniques. Polymers, 16.","DOI":"10.3390\/polym16152182"},{"key":"ref_6","doi-asserted-by":"crossref","unstructured":"Liu, X., Li, S., Duan, Y., Du, Z., Zuo, X., Dong, J., and Cheng, H. (2024). Influence of Printing Interval on the Imbibition Behavior of 3D-Printed Foam Concrete for Sustainable and Green Building Applications. Sustainability, 16.","DOI":"10.3390\/su16177841"},{"key":"ref_7","doi-asserted-by":"crossref","unstructured":"Kladovasilakis, N., Pemas, S., and Pechlivani, E.M. (2024). Computer-Aided Design of 3D-Printed Clay-Based Composite Mortars Reinforced with Bioinspired Lattice Structures. Biomimetics, 9.","DOI":"10.3390\/biomimetics9070424"},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Pemas, S., Gkiliopoulos, D., Samiotaki, C., Bikiaris, D.N., Terzopoulou, Z., and Pechlivani, E.M. (2024). Valorization of Tomato Agricultural Waste for 3D-Printed Polymer Composites Based on Poly(lactic acid). Polymers, 16.","DOI":"10.3390\/polym16111536"},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Kostavelis, I., Folinas, D., Aidonis, D., and Achillas, C. (2025). Valorizing Automotive Tire Waste via Additive Manufacturing Technologies. The Supply Chains, Springer Nature.","DOI":"10.1007\/978-3-031-69344-1"},{"key":"ref_10","doi-asserted-by":"crossref","unstructured":"Luhar, S., Suntharalingam, T., Navaratnam, S., Luhar, I., Thamboo, J., Poologanathan, K., and Gatheeshgar, P. (2020). Sustainable and Renewable Bio-Based Natural Fibres and Its Application for 3D Printed Concrete: A Review. Sustainability, 12.","DOI":"10.3390\/su122410485"},{"key":"ref_11","unstructured":"El Sakka, F., and Hamzeh, F. (2025, February 24). 3D Concrete Printing in the Service of Lean Construction. Available online: https:\/\/apo.org.au\/node\/304784."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"2018","DOI":"10.1016\/j.matpr.2022.01.266","article-title":"Various properties of natural and artificial fibers with cementitious composites in hybrid form\u2014A review","volume":"60","author":"Sriram","year":"2022","journal-title":"Mater. Today Proc."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"130457","DOI":"10.1016\/j.conbuildmat.2023.130457","article-title":"Development of sustainable alternative materials for the construction of green buildings using agricultural residues: A review","volume":"368","author":"Sangmesh","year":"2023","journal-title":"Constr. Build. Mater."},{"key":"ref_14","doi-asserted-by":"crossref","unstructured":"Liampas, S., Kladovasilakis, N., Tsongas, K., and Pechlivani, E.M. (2024). Recent Advances in Additive Manufacturing of Fibre-Reinforced Materials: A Comprehensive Review. Appl. Sci., 14.","DOI":"10.3390\/app142210100"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"e15023","DOI":"10.1016\/j.heliyon.2023.e15023","article-title":"The potential of adopting natural fibers reinforcements for fused deposition modeling: Characterization and implications","volume":"9","author":"Nazir","year":"2023","journal-title":"Heliyon"},{"key":"ref_16","unstructured":"Dias, J., Brand\u00e3o, F., Figueiredo, B., and Cruz, P. (2024, January 4\u20136). The Potential of Natural Fiber Reinforcement in 3d Printed Concrete: A Review. Proceedings of the Digital Concrete 2024\u2014Supplementary Proceedings, Munich, Germany."},{"key":"ref_17","doi-asserted-by":"crossref","unstructured":"Liu, J., and Lv, C. (2022). Properties of 3D-Printed Polymer Fiber-Reinforced Mortars: A Review. Polymers, 14.","DOI":"10.3390\/polym14071315"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"451","DOI":"10.1016\/0950-0618(96)00001-3","article-title":"Evaluation of blended cement mortar, concrete and stabilized earth made from ordinary Portland cement and corn cob ash","volume":"10","author":"Adesanya","year":"1996","journal-title":"Constr. Build. Mater."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"100269","DOI":"10.1016\/j.hybadv.2024.100269","article-title":"A review of corncob-based building materials as a sustainable solution for the building and construction industry","volume":"6","author":"Okeke","year":"2024","journal-title":"Hybrid Adv."},{"key":"ref_20","unstructured":"Komisyonu, A. (2025, February 26). The European Green Deal\u2014European Commission. Available online: https:\/\/commission.europa.eu\/strategy-and-policy\/priorities-2019-2024\/european-green-deal_en."},{"key":"ref_21","doi-asserted-by":"crossref","unstructured":"Sesana, M.M., and Dell\u2019Oro, P. (2024). Sustainability and Resilience Assessment Methods: A Literature Review to Support the Decarbonization Target for the Construction Sector. Energies, 17.","DOI":"10.3390\/en17061440"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"1906","DOI":"10.1016\/j.rser.2017.06.001","article-title":"Carbon emission of global construction sector","volume":"81","author":"Huang","year":"2018","journal-title":"Renew. Sustain. Energy Rev."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"98","DOI":"10.1016\/j.enbuild.2014.05.032","article-title":"Thermal and mechanical performance of natural mortar reinforced with date palm fibers for use as insulating materials in building","volume":"81","author":"Benmansour","year":"2014","journal-title":"Energy Build."},{"key":"ref_24","doi-asserted-by":"crossref","unstructured":"Amziane, S., Merta, I., and Page, J. (2023). Developing 3D-Printed Natural Fiber-Based Mixtures. The Bio-Based Building Materials, Springer Nature.","DOI":"10.1007\/978-3-031-33465-8"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"1151","DOI":"10.1016\/j.buildenv.2005.12.005","article-title":"Performance of \u201cAgave lecheguilla\u201d natural fiber in portland cement composites exposed to severe environment conditions","volume":"42","author":"Valdez","year":"2007","journal-title":"Build. Environ."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"127282","DOI":"10.1016\/j.conbuildmat.2022.127282","article-title":"Properties of additively manufactured geopolymer incorporating mineral wollastonite microfibers","volume":"331","author":"Bong","year":"2022","journal-title":"Constr. Build. Mater."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"814","DOI":"10.1016\/j.conbuildmat.2011.12.068","article-title":"Mechanical and dynamic properties of coconut fibre reinforced concrete","volume":"30","author":"Ali","year":"2012","journal-title":"Constr. Build. Mater."},{"key":"ref_28","doi-asserted-by":"crossref","unstructured":"\u0141agoda, G., and Gajda, T. (2021). Change of Mechanical Properties of Repair Mortars after Frost Resistance Rests. Materials, 14.","DOI":"10.3390\/ma14123199"},{"key":"ref_29","doi-asserted-by":"crossref","unstructured":"Netinger Grube\u0161a, I., Markovi\u0107, B., Vra\u010devi\u0107, M., Tunkiewicz, M., Szenti, I., and Kukovecz, \u00c1. (2019). Pore Structure as a Response to the Freeze\/Thaw Resistance of Mortars. Materials, 12.","DOI":"10.3390\/ma12193196"},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"112","DOI":"10.1617\/s11527-019-1411-4","article-title":"Assessment of test methods for the durability of thermal mortars exposure to freezing","volume":"52","author":"Maia","year":"2019","journal-title":"Mater. Struct."},{"key":"ref_31","doi-asserted-by":"crossref","unstructured":"Calabr\u00f2, F., Madureira, L., Morabito, F.C., and Pi\u00f1eira Manti\u00f1\u00e1n, M.J. (2024). Principles of Sustainability in Byzantine Mortar Construction Technology. The Networks, Markets & People, Springer Nature.","DOI":"10.1007\/978-3-031-74501-0"},{"key":"ref_32","first-page":"e02474","article-title":"The different action mechanisms of silica and alumina nanoparticles in lime-pozzolan pastes","volume":"19","author":"Tsardaka","year":"2023","journal-title":"Case Stud. Constr. Mater."},{"key":"ref_33","unstructured":"(2019). Methods of Test for Mortar for Masonry\u2014Part 11: Determination of Flexural and Compressive Strength of Hardened Mortar (Standard No. EN 1015-11:2019). Available online: https:\/\/standards.iteh.ai\/catalog\/standards\/cen\/14596d4c-119b-4a78-94e1-3fe481a29bde\/en-1015-11-2019."},{"key":"ref_34","unstructured":"(1999). Methods of Test for Mortar for Masonry\u2014Part 3: Determination of Consistence of Fresh Mortar (by Flow Table) (Standard No. EN 1015-3:1999)."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"391","DOI":"10.1007\/BF02478713","article-title":"CPC 11.3. Absorption d\u2019eau par immersion sous vide","volume":"17","author":"Recommendation","year":"1984","journal-title":"Mat\u00e9r. Constr."}],"container-title":["Materials"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1996-1944\/18\/14\/3375\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,9]],"date-time":"2025-10-09T18:12:00Z","timestamp":1760033520000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1996-1944\/18\/14\/3375"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,7,18]]},"references-count":35,"journal-issue":{"issue":"14","published-online":{"date-parts":[[2025,7]]}},"alternative-id":["ma18143375"],"URL":"https:\/\/doi.org\/10.3390\/ma18143375","relation":{},"ISSN":["1996-1944"],"issn-type":[{"type":"electronic","value":"1996-1944"}],"subject":[],"published":{"date-parts":[[2025,7,18]]}}}