Preprint Article Version 1 This version is not peer-reviewed

Development of a 3D-Printable Ultra-High Performance Fiber-Reinforced Concrete for Digital Construction

Version 1 : Received: 27 November 2019 / Approved: 29 November 2019 / Online: 29 November 2019 (10:45:46 CET)

How to cite: Arunothayan, R.; Nematollahi, B.; Ranade, R.; Bong, S.H.; Sanjayan, J. Development of a 3D-Printable Ultra-High Performance Fiber-Reinforced Concrete for Digital Construction. Preprints 2019, 2019110377 (doi: 10.20944/preprints201911.0377.v1). Arunothayan, R.; Nematollahi, B.; Ranade, R.; Bong, S.H.; Sanjayan, J. Development of a 3D-Printable Ultra-High Performance Fiber-Reinforced Concrete for Digital Construction. Preprints 2019, 2019110377 (doi: 10.20944/preprints201911.0377.v1).

Abstract

This paper presents the systematic development and performance characterization of a non-proprietary 3D-printable ultra-high-performance fiber-reinforced concrete (UHPFRC) for digital construction. Several fresh and hardened properties of the developed 3D-printable UHPFRC matrix (without fiber) and composite (with 2% volume fraction of steel fibers) were evaluated and compared to that of conventionally mold-cast UHPFRC. Additionally, the effects of testing direction on the compressive and flexural strengths of the printed UHPFRC were investigated. The fresh properties of the UHPFRC developed in this study satisfied the criteria for extrudability, buildability, and shape-retention-ability, which are relevant for ensuring printability. The printed UHPFRC exhibited superior flexural performance to the mold-cast UHPFRC due to alignment of the short fibers in the printing direction. The high compressive and flexural strengths, along with the deflection-hardening behavior, of the developed UHPFRC can enable the production of thin 3D-printed components with significant reduction or complete elimination of conventional steel bars.

Subject Areas

ultra-high-performance fiber-reinforced concrete (UHPFRC); mechanical properties; extrusion; 3D concrete printing (3DCP)

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.