Development of 3D-printable ultra-high performance fiber-reinforced concrete for digital construction

By Arun R. Arunothayan, B. Nematollahi, R. Ranade, Shin Hau Bong, J. Sanjayan. 2020

285 citations recorded by the source corpus.

Abstract This paper presents the systematic development and performance characterization of a non-proprietary 3D-printable ultra-high-performance fiber-reinforced concrete (UHPFRC). Several fresh and hardened state properties of the 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 test direction on the compressive strength and modulus of rupture 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.

Subfields: Automotive Engineering, Building and Construction, Civil and Structural Engineering

View Paper: https://www.semanticscholar.org/paper/9d37d1564eea23f9eaaa912a43eb9d0c4565d76d

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Automotive Engineering

1. J. Sanjayan
2. B. Nematollahi
3. V. Mechtcherine
4. Fred Bos
5. Richard A. Buswell
6. R. Wolfs
7. M. Tan
8. Jianzhuang Xiao

In Building and Construction

1. J. Sanjayan
2. B. Nematollahi
3. Fred Bos
4. V. Mechtcherine
5. R. Wolfs
6. Richard A. Buswell
7. M. Tan
8. Jianzhuang Xiao

In Civil and Structural Engineering

1. J. Sanjayan
2. B. Nematollahi
3. V. Mechtcherine
4. Fred Bos
5. R. Wolfs
6. Faiz Shaikh
7. E. Yang
8. J. Qiu

Citations in the corpus

• Integrating reinforcement in digital fabrication with concrete: A review and classification framework (2021, methodology): “[53] recently reported the systematic development of a non-proprietary, 3D-printable ultra-high performance fibre-reinforced concrete (UHPFRC) reinforced with 2% by volume of 13 mm long steel fibres; see Fig.”