journal article·2026-10

A novel print-rest-print strategy for 3D-printed cementless mortars with structural and thermal conduction multifunctionality

Jie Chen, Kinga Korniejenko, Chia-Ying Ho, Wei-Ting Lin

Materials Letters· Volume 421
Publisher page

Abstract

Developing 3D-printable materials that address buildability limits and environmental sustainability is a critical challenge. This study introduces a novel print-rest-print strategy for a self-activating cementless mortar (CM) incorporating ground granulated blast-furnace slag and co-fired fly ash. Under controlled isoworkability conditions, the extended setting time of CM was exploited to increase buildability to 30 layers without chemical accelerators. Furthermore, the optimized aggregate skeleton enabled a multifunctional composite that delivered robust compressive structural strength (>20 MPa) at 56 days while achieving lower thermal properties (0.58 to 0.88 W/m·K), achieving a 65% reduction compared to the midpoint of reported conventional mortars. This multifunctional cementless material presents a highly sustainable, energy-efficient alternative for advanced additive manufacturing in construction.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Innovations in Concrete and Construction Materials · Additive Manufacturing and 3D Printing Technologies · Innovative concrete reinforcement materials

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References (17)

Show source-provided references
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