Reinforcing Interlayers of Three-Dimensional-Printed Mortar Using Metal-Fiber-Insertion (2021-11)¶
, Miyata Yoshihiro, Furue Shoko, Fukatsu Shiko, Kajita Hideyuki
Journal Article - ACI Materials Journal, Vol. 118, Iss. 6, pp. 331-340
Abstract
In recent years, various three-dimensional (3D) concrete printing (3DCP) systems have been developed extensively in the construction field. The extrusion-based 3DCP method using yield pseudoplastic mortar has emerged as the most promising system owing to its attractive properties. However, the poor bonding property of the interlayers brings cold joint-like gaps/voids, which decrease the mechanical properties of the printed elements. In this study, a novel reinforcing system was proposed for 3DCP-printed elements, in which metal fibers were inserted in the interlayers. Fundamental experiments were performed to verify the effectiveness of the proposed methods using different sizes and types of metal fibers. The results revealed that the tensile and flexural strengths of the printed elements improved when the reinforcing fibers were properly placed without air voids around the fibers. In addition, it was found that straight-shaped fibers were more suitable reinforcing fibers for avoiding voids.
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BibTeX
@article{nish_miya_furu_fuka.2021.RIoTDPMUMFI,
author = "Tomoya Nishiwaki and Yoshihiro Miyata and Shoko Furue and Shiko Fukatsu and Hideyuki Kajita",
title = "Reinforcing Interlayers of Three-Dimensional-Printed Mortar Using Metal-Fiber-Insertion",
doi = "10.14359/51733133",
year = "2021",
journal = "ACI Materials Journal",
volume = "118",
number = "6",
pages = "331--340",
}
Formatted Citation
T. Nishiwaki, Y. Miyata, S. Furue, S. Fukatsu and H. Kajita, “Reinforcing Interlayers of Three-Dimensional-Printed Mortar Using Metal-Fiber-Insertion”, ACI Materials Journal, vol. 118, no. 6, pp. 331–340, 2021, doi: 10.14359/51733133.
Nishiwaki, Tomoya, Yoshihiro Miyata, Shoko Furue, Shiko Fukatsu, and Hideyuki Kajita. “Reinforcing Interlayers of Three-Dimensional-Printed Mortar Using Metal-Fiber-Insertion”. ACI Materials Journal 118, no. 6 (2021): 331–40. https://doi.org/10.14359/51733133.