SYMPOSIA PAPER Published: 30 December 2021
STP163620200093

A Methodology to Assess Early Age Fracture Performance of 3D Printable Cementitious Mixes

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Digital fabrication with cement-based materials requires that specific attention is paid to rheological and mechanical material properties in both the fresh and hardened states. For the layered extrusion process, the cement-based material needs to satisfy the “printability” requirement, which may involve fracture resistance at very early ages to multiaxial stress states. This paper presents a methodology to identify the mechanical response under direct tensile and shear stresses as a function of time to determine the printability of the mix, with reference not only to the quality of the finishing but also to the speed of the printing process.

Author Information

Kompella, Sriram, K.
Dept. of Civil and Environmental Engineering, Politecnico di Milano, Milano, IT
Lo Monte, Francesco
Dept. of Civil and Environmental Engineering, Politecnico di Milano, Milano, IT
Cucchi, Marco
Laboratory for Testing Buildings, Materials and Structures, Politecnico di Milano, Milano, IT
Marcucci, Andrea
Dept. of Civil and Environmental Engineering, Politecnico di Milano, Milano, IT
Bassani, Andrea
IDeCOM, Erba, IT
Guanziroli, Stefano
IDeCOM, Erba, IT
Ferrara, Liberato
Dept. of Civil and Environmental Engineering, Politecnico di Milano, Milano, IT
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Details
Pages: 27–34
DOI: 10.1520/STP163620200093
ISBN-EB: 978-0-8031-7719-2
ISBN-13: 978-0-8031-7718-5