{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T02:46:03Z","timestamp":1777517163775,"version":"3.51.4"},"reference-count":99,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2021,5,5]],"date-time":"2021-05-05T00:00:00Z","timestamp":1620172800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004951","name":"Atat\u00fcrk \u00dcniversitesi","doi-asserted-by":"publisher","award":["FHD-2019-7411"],"award-info":[{"award-number":["FHD-2019-7411"]}],"id":[{"id":"10.13039\/501100004951","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>The effect of air-entraining admixture (AEA) on the fresh and rheological behavior of mortars designed to be used in 3D printers was investigated. Blast furnace slag, calcined kaolin clay, polypropylene fiber, and various chemical additives were used in the mortar mixtures produced with Super White Cement (CEM I 52.5 R) and quartz sand. In addition to unit weight, air content, and compressive strength tests, in order to determine the stability of 3D printable mortar elements created by extruding layer by layer without any deformation, extrudability, buildability, and open time tests were applied. Fresh and rheological properties of 3D printable mortars were also determined. It was concluded that the addition of AEA to the mortars decreased the unit weight, viscosity, yield, and compressive strength, but increased the air content, spread diameter, initial setting time, and thixotropy of 3D printable mortar. It is recommended to develop a unique chemical admixture for 3D printable mortars, considering the active ingredients of the chemical additives that affect fresh and rheological performance of mortar such as superplasticizer, viscosity modifying, and cement hydration control.<\/jats:p>","DOI":"10.3390\/ma14092409","type":"journal-article","created":{"date-parts":[[2021,5,5]],"date-time":"2021-05-05T22:51:42Z","timestamp":1620255102000},"page":"2409","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":32,"title":["Fresh and Rheological Performances of Air-Entrained 3D Printable Mortars"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3901-9070","authenticated-orcid":false,"given":"Ye\u015fim","family":"Tarhan","sequence":"first","affiliation":[{"name":"Department of Civil Engineering, Engineering Faculty, Ardahan University, 75002 Ardahan, Turkey"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5400-7732","authenticated-orcid":false,"given":"Remzi","family":"\u015eahin","sequence":"additional","affiliation":[{"name":"Department of Civil Engineering, Engineering Faculty, Atat\u00fcrk University, 25240 Erzurum, Turkey"}]}],"member":"1968","published-online":{"date-parts":[[2021,5,5]]},"reference":[{"key":"ref_1","unstructured":"Nadarajah, N. 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