Development of 3D printing sustainable mortars based on a bibliometric analysis. (June 2021)

• Record Type: Journal Article
• Authors: Teixeira, J; Schaefer, CO; Rangel, B; Alves, J Lino; Maia, L; Nunes, S; Neto, R; Lopes, ML
• Is Part Of: Proceedings of the Institution of Mechanical Engineers. Volume 235:Number 6(2021)
• Page Start: 1419
• Page End: 1429
• Publication Date: 2021-06
• Subjects: Three-dimensional printing mortars -- bibliometric analysis -- extrusion -- mix design -- sustainability; Materials -- Periodicals; Engineering design -- Periodicals; 620.11
• DOI: 10.1177/1464420721995210
• Languages: English
• ISSNs: 1464-4207

Abstract

In construction, three-dimensional concrete printing technology is an innovative method that opens new design possibilities, reducing the construction time process. The incremental material deposition allows organic shapes without formwork, a mandatory constraint in preparatory phases of conventional complex concrete structures. Nowadays, in three-dimensional printing for construction industry, concrete is the most used material due to its workability, extrudability, and pumpability properties favorable for the printing conditions. Hence, this composition still has a poor sustainable efficiency due to the high levels of Portland Cement. In this research, a reduction of this material was studied and experimented searching for a mortar composition with better ecological footprint, with the objective of decreasing the CO2 emissions. A bibliometric analysis was made to study the constituents of a mortar for three-dimensional printing and respective dosage. The knowledge acquired in the analysis of the compositions contributed to the development of mortars with lower Portland Cement content. A mechanical extruder was used to check the extrusion capacity of the developed mortars, and the best compositions are presented.