Experimental Approach for Printability Assessment: Toward a Practical Decision-Making Framework of Printability for Cementitious Materials

Lafhaj, Zoubeir; Rabenantoandro, Andry Zaid; el Moussaoui, Soufiane; Dakhli, Zakaria; Youssef, Nicolas

doi:10.3390/buildings9120245

Open AccessArticle

Experimental Approach for Printability Assessment: Toward a Practical Decision-Making Framework of Printability for Cementitious Materials

by

Zoubeir Lafhaj

^*,

Andry Zaid Rabenantoandro

,

Soufiane el Moussaoui

,

Zakaria Dakhli

and

Nicolas Youssef

Centrale Lille, Civil Engineering, Cité Scientifique, 59651 Villeneuve-d’Ascq, France

^*

Author to whom correspondence should be addressed.

Buildings 2019, 9(12), 245; https://doi.org/10.3390/buildings9120245

Submission received: 14 November 2019 / Revised: 8 December 2019 / Accepted: 13 December 2019 / Published: 17 December 2019

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Abstract

The objective of this paper is to propose a pre-experimental framework of printability pre-assessment of cementitious materials. This study firstly presents a general review of additive manufacturing in construction and then examines the main characteristic of the material formulation and printability properties based on extrusion technique. This framework comes with experimental tests to determine a qualitative printability index of mixtures. It uses mix-designs reported in the literature to define interval ratio of mixture design to be investigated in this study. The focus was put on two criteria that influence the formulation namely flowability and buildability. Two practiced based tests, mini slump and cone penetrometer, were used to draw the flowability and buildability dimensionless index. The results were analyzed by introducing an optimal printability coefficient and examining their time evolution. An optimal time of printing was determined Toptimal. Finally, a 3D mortar printing system and its operational process are presented. Then, based on the measurement, the optimal mixture is identified and printed in a large-scale geometry.

Keywords: 3D printing; extrusion construction industry; additive manufacturing; fresh mortar; mortar printing; measurement; printability; flowability; buildability

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MDPI and ACS Style

Lafhaj, Z.; Rabenantoandro, A.Z.; el Moussaoui, S.; Dakhli, Z.; Youssef, N. Experimental Approach for Printability Assessment: Toward a Practical Decision-Making Framework of Printability for Cementitious Materials. Buildings 2019, 9, 245. https://doi.org/10.3390/buildings9120245

AMA Style

Lafhaj Z, Rabenantoandro AZ, el Moussaoui S, Dakhli Z, Youssef N. Experimental Approach for Printability Assessment: Toward a Practical Decision-Making Framework of Printability for Cementitious Materials. Buildings. 2019; 9(12):245. https://doi.org/10.3390/buildings9120245

Chicago/Turabian Style

Lafhaj, Zoubeir, Andry Zaid Rabenantoandro, Soufiane el Moussaoui, Zakaria Dakhli, and Nicolas Youssef. 2019. "Experimental Approach for Printability Assessment: Toward a Practical Decision-Making Framework of Printability for Cementitious Materials" Buildings 9, no. 12: 245. https://doi.org/10.3390/buildings9120245

APA Style

Lafhaj, Z., Rabenantoandro, A. Z., el Moussaoui, S., Dakhli, Z., & Youssef, N. (2019). Experimental Approach for Printability Assessment: Toward a Practical Decision-Making Framework of Printability for Cementitious Materials. Buildings, 9(12), 245. https://doi.org/10.3390/buildings9120245

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Experimental Approach for Printability Assessment: Toward a Practical Decision-Making Framework of Printability for Cementitious Materials

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