Properties of 3D-printed fiber-reinforced Portland cement paste

By Manuel Hambach, D. Volkmer. 2017

477 citations recorded by the source corpus.

Abstract First insights into a 3D-printed composite of Portland cement paste and reinforcing short fibers (carbon, glass and basalt fibers, 3–6 mm) are presented, resulting in novel materials that exhibit high flexural (up to 30 MPa) and compressive strength (up to 80 MPa). Alignment of the fibers, caused by the 3D-printing process is observed, opening up the possibility to use the print path direction as a means to control fiber orientation within the printed structures. Apart from completely dense cementitious bodies, hierarchically structured bodies, displaying precisely adjusted macroporosity, are presented, the latter exhibiting a unique combination of strength and materials efficiency.

Subfields: Automotive Engineering, Biomedical Engineering, Building and Construction

View Paper: https://www.semanticscholar.org/paper/d028fceea74994dcd03b34e607e815916fe918a3

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In Automotive Engineering

In Biomedical Engineering

In Building and Construction

Citations in the corpus

3D printing using concrete extrusion: A roadmap for research (2018, background): “Hambach and Volkmer [44] investigated a similar idea, but using the extrusion to orient fibers to align with the filament, thus increasing its tensile capacity.”
Integrating reinforcement in digital fabrication with concrete: A review and classification framework (2021, methodology): “Hambach and Volkmer [51] reported on the mechanical properties of cement paste reinforced by different types of 3- to 6-mm-long fibres, including carbon, glass, and basalt fibres.”
Structural behaviour of 3D printed concrete beams with various reinforcement strategies (2021, background): “The addition of fibres to 3DCP mixes has shown to align the fibres in the direction of printing and, consequently, to improve the mechanical performance in this direction [27 – 30].”