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The 3D-printed samples exhibited compressive strengths ranging from 4 to 10\u00a0MPa, sufficient to withstand marine environmental stresses, although lower than the 20 to 30\u00a0MPa observed in cast samples. The mineralogical analysis showed the presence of compatible phases including hematite and calcium carbonate, which enhance environmental compatibility. The study highlights the potential of waste-based geopolymers as sustainable materials for artificial corals, emphasizing the benefits of using 3D printing to generate complex geometries and endow marine integration.<\/jats:p>\n          <jats:p>\n            <jats:bold>Graphical Abstract<\/jats:bold>\n          <\/jats:p>","DOI":"10.1007\/s40831-025-01016-3","type":"journal-article","created":{"date-parts":[[2025,2,14]],"date-time":"2025-02-14T18:08:12Z","timestamp":1739556492000},"page":"114-125","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Waste-Derived Geopolymers for Artificial Coral Development by 3D Printing"],"prefix":"10.1007","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0009-0002-5401-593X","authenticated-orcid":false,"given":"J. R.","family":"Martins","sequence":"first","affiliation":[]},{"given":"R. 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