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Title: Measurement of the fresh rheological properties of material in 3D printing
Authors: Liu, Zhixin
Li, Mingyang
Wong, Teck Neng
Tan, Ming Jen
Keywords: DRNTU::Engineering::Civil engineering::Construction technology
Non-Newtonian Fluid Model
DRNTU::Engineering::Mechanical engineering::Prototyping
3D Printing Of Cementitious Material
Issue Date: 2018
Source: Liu, Z., Li, M., Wong, T. N., & Tan, M. J. (2018). Measurement of the fresh rheological properties of material in 3D printing. Proceedings of the 3rd International Conference on Progress in Additive Manufacturing (Pro-AM 2018), 74-79. doi:10.25341/D44G64
Abstract: 3D printing of cementitious material/concrete is getting more and more attention from both industry and academic in recent years. Unlike traditional construction, fresh cementitious material pumpability and buildability is crucial in 3D printing process. Only with appropriate pumpability and buildability, cementitious material can be transported in the delivery system smoothly then be deposited layer by layer firmly. The pumpability and buildability have closely relationship with fresh rheological properties of the cementitious material. In this paper, the fresh rheological properties of three kinds of materials were measure via the large gap viscometer. Two different models (Bingham model, modified Bingham model) were applied to derive the yield stress and plastic viscosity of each cementitious material. Experimental results show that the predicted yield stress and plastic viscosity varies a lot even for the same material and the deviation of plastic viscosity is much larger than that of the yield stress.
DOI: 10.25341/D44G64
Rights: © 2018 Nanyang Technological University. Published by Nanyang Technological University, Singapore.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:Pro-AM Conference Papers

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