Buildability of Mortar Feedstock in Material Extrusion Additive Manufacturing

• Autorzy: Park Jinsoo , Lee Hojae , Choi Hanshin

Identyfikatory

DOI

10.24425/amm.2020.133219

• Języki publikacji: EN

Abstrakty

EN

Mortar feedstock is extruded to form bead and it is selectively placed line by line in the material extrusion additive manufacturing. With respects to part building process healthiness, load-supporting ability of overlaid beads is emphasized as buildability. Buildability is primarily dependent on thixotropic properties of feedstock and vertical overlapping schedule. In the present study, water-to-binder (w/b) ratio was chosen as material aspect to assess buildability. Uneven bead shape evolution and premature failure were highlighted owing to low yield stress of high w/b ratio feedstock. Feedstock with optimum w/b ratio showed good buildability even at the interval time of 19 sec.

Słowa kluczowe

EN

additive manufacturing; mortar feedstock; shape retention ability; buildability; overlaying mode

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2020
• Tom: Vol. 65, iss. 3
• Strony: 1069--1072
• Opis fizyczny: Bibliogr. 6 poz., fot., rys., tab.

Twórcy

autor

Park Jinsoo

• Korea Institute of Industrial Technology, Advanced Materials and Processing R&D Group, 156, Gaetbeol-ro, Yeonsu-gu, Incheon, Republic of Korea

autor

Lee Hojae

• Korea Institute of Civil Engineering and Building Technology, Goyang, Republic of Korea

autor

Choi Hanshin

• Korea Institute of Industrial Technology, Advanced Materials and Processing R&D Group, 156, Gaetbeol-ro, Yeonsu-gu, Incheon, Republic of Korea

Bibliografia

• [1] R. A. Buswell, 3D printing using concrete extrusion: A roadmap for research, Cement and Concrete Research 112, 37-49 (2018).
• [2] ISO/ASTM 52900 : 2015, ASTM International.
• [3] N Roussel, The origins of thixotropy of fresh cement pastes., Cement and Concrete Research 42 (1), 148-157 (2012).
• [4] Nicolas Roussel, Rheological requirements for printable concretes., Cement and Concrete Research 112, 76-85 (2018).
• [5] H. Khelifi, Prediction of extrusion load and liquid phase filtration during ram extrusion of high solid volume fraction pastes., Powder Technology 249, 258-268 (2013).
• [6] ASTM C 230/C230M-14 : 2014, ASTM International.

Uwagi

EN

1. This review paper was carried out with the support of the Korea Ministry of Land, Infrastructure and Transport/ Korea Agency for Infrastructure Technology Advancement, ‘Development of innovative design, material and equipment for 3D printing small buildings/freeform members’ (19AUDP-B121595-04).

PL

2. Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).