Mechanical Properties of 3D-Printed Earth-Based Materials Considering Two Printable Soils
Propriétés mécaniques de matériaux en terre imprimés en 3D - Comparaison de deux sols imprimables
Résumé
Attempts to apply earth materials to 3D printing were already underway in 2011 [1]. However, the construction industry has only recently seen a proliferation of research. At present, in addition to enriching the printable earth materials, the corresponding mechanical properties also need to be explored to ensure that they meet the construction requirements and optimize the material design. Therefore, two printable earth mixtures based on two types of soils were deposited to figure out the mechanical properties, including compressive, flexural strength, and Young's modulus. More specifically, a comparison was made between cast and printed specimens to demonstrate the extent to which the printing process has weakened the strength and the effect of loading orientation was also studied to show the mechanical anisotropy of the printed specimens. Based on the study, a superior earth mixture for construction printing was eventually recommended.
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