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Naslov:Temperature pre-treatment of gypsum for powder based 3D printing technology
Avtorji:ID Zalar Serjun, Vesna (Avtor)
ID Korat Bensa, Lidija (Avtor)
Datoteke:.pdf PDF - Predstavitvena datoteka, prenos (9,29 MB)
MD5: 9894BB38311A12D91AA0F5BC762F8F04
Opis: Odprti dostop
 
.pdf PDF - Predstavitvena datoteka, prenos (1,74 MB)
MD5: FE89D07D97CA55D82F30F3DB2B678CDC
 
URL URL - Izvorni URL, za dostop obiščite https://www.zag.si/dl/coms2020-21-proceedings-2.pdf
 
Jezik:Angleški jezik
Tipologija:1.08 - Objavljeni znanstveni prispevek na konferenci
Organizacija:Logo ZAG - Zavod za gradbeništvo Slovenije
Povzetek:In recent years many researchers have been involved in studies in the field of pre-treatment of various raw materials. Temperature treatment of materials results in several advantages, which have been already recognised and successfully applied in various fields of applications. Where at the same time, the practices has been adopted also in the field of 3D printing. Enhanced strength and stiffness, assuring desirable performance criteria of the 3D printed models, reflect the most important characteristics. 3D printing binder jetting technology is based on the application of liquid binders onto powdered material, where gypsum powders have been commercially used as a base raw material. As natural raw materials can be replaced by other materials, such as recycled industrial by products, the aim of this research work was to evaluate the potential usage of three synthetic gypsum powders from different industrial processes for 3D printing. The investigation covered (a) mineralogical and microstructural characteristics of gypsums from different origin and (b) the effect of pre-treatment of gypsum powders at different temperatures (up to 500 °C). On the basis of the results, the most promising temperature regime for each different waste gypsum powder treatment, reflecting in the most optimal setting time, was defined. Synthetic gypsums were characterized by X-ray diffraction (QXRD), scanning electron microscopy (SEM) and differential thermal analysis (TG/DTA). The results showed that all three synthetic gypsums (calcium sulfate dihydrate, CaSO 4∙2H2O) thermally degrade into calcium sulfate anhydrite (CaSO 4) via an intermediate calcium sulfate hemihydrate (CaSO 4∙ ½H2 O, bassanite) phase. Microstructural and mineralogical differences were observed when temperature treated gypsums from different origins were compared. The detailed knowledge of gypsum powder properties at different temperature regime is important parameter for the assurance of 3D printing key parameters such as flowability, roughness and wettability, especially for determination of saturation levels and setting time. After all, these parameters define final mechanical properties of 3D printed structures. By using such approach, the understanding of material compatibility for 3D printing technology can be defined and improved if necessary.
Ključne besede:3D print, additive manufacturing, gypsum, temperature
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:01.01.2021
Založnik:Slovenian National Building and Civil Engineering Institute
Leto izida:2021
Št. strani:Str. 169-174
PID:20.500.12556/DiRROS-17969 Novo okno
UDK:624
COBISS.SI-ID:64725507 Novo okno
Avtorske pravice:© 2021 Slovenian National Building and Civil Engineering Institute
Opomba:Nasl. z nasl. zaslona; Opis vira z dne 26. 5. 2021;
Datum objave v DiRROS:25.01.2024
Število ogledov:742
Število prenosov:461
Metapodatki:XML DC-XML DC-RDF
:
ZALAR SERJUN, Vesna in KORAT BENSA, Lidija, 2021, Temperature pre-treatment of gypsum for powder based 3D printing technology. V : Construction materials for a sustainable future [na spletu]. Objavljeni znanstveni prispevek na konferenci. Ljubljana : Slovenian National Building and Civil Engineering Institute. 2021. p. 169–174. [Dostopano 16 marec 2025]. Pridobljeno s: https://dirros.openscience.si/IzpisGradiva.php?lang=slv&id=17969
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Gradivo je del monografije

Naslov:Construction materials for a sustainable future : proceedings of the 2nd International Conference CoMS 2020/21
Uredniki:Aljoša Šajna, Andraž Legat, Sabina Jordan, Petra Horvat, Ema Kemperle, Sabina Dolenec, Metka Ljubešek, Matej Michelizza
Kraj izida:Ljubljana
Založnik:Slovenian National Building and Civil Engineering Institute
Leto izida:2021
ISBN:978-961-7125-01-6
COBISS.SI-ID:60496131 Novo okno

Gradivo je financirano iz projekta

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:Z2-1861
Naslov:Razvoj prahu za namene 3D-tiskanih mezostrukturnih izolacijskih materialov
Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:Z1-1858
Naslov:Recikliranje odpadne titanove sadre v cementnih kompozitih
Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P2-0273
Naslov:Gradbeni objekti in materiali

Licence

Licenca:CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
Opis:Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:3D tisk, dodajalne tehnologije, sadra, temperature


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