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Title: Fresh and hardened properties of 3D printable cementitious materials for building and construction
Authors: Paul, Suvash Chandra
Panda, Biranchi
Tan, Ming Jen
Tay, Daniel Yi Wei
Keywords: 3D Printing Process
3D Concrete Printing
DRNTU::Engineering::Mechanical engineering
Issue Date: 2017
Source: Paul, S. C., Tay, D. Y. W., Panda, B., & Tan, M. J. (2018). Fresh and hardened properties of 3D printable cementitious materials for building and construction. Archives of Civil and Mechanical Engineering, 18(1), 311-319. doi:10.1016/j.acme.2017.02.008
Series/Report no.: Archives of Civil and Mechanical Engineering
Abstract: The main advantage of 3D concrete printing (3DCP) is that it can manufacture complex, non-standard geometries and details rapidly using a printer integrated with a pump, hosepipe and nozzle. Sufficient speed is required for efficient and fast construction. The selected printing speed is a function of the size and geometrical complexity of the element to be printed, linked to the pump speed and quality of the extruded concrete material. Since the printing process requires a continuous, high degree of control of the material during printing, high performance building materials are preferred. Also, as no supporting formwork is used for 3DCP, traditional concrete cannot be directly used. From the above discussion, it is postulated that in 3DCP, the fresh properties of the material, printing direction and printing time may have significant effect on the overall load bearing capacity of the printed objects. The layered concrete may create weak joints in the specimens and reduce the load bearing capacity under compressive, tensile and flexural action that requires stress transfer across or along these joints. In this research, the 3D printed specimens are collected in different orientations from large 3DCP objects and tested for mechanical properties. For the materials tested, it is found that the mechanical properties such as compressive and flexural strength of 3D printed specimen are governed by its printing directions.
ISSN: 1644-9665
DOI: 10.1016/j.acme.2017.02.008
Rights: © 2017 Politechnika Wrocławska. All rights reserved. This paper was published by Elsevier Sp. z o.o. in Archives of Civil and Mechanical Engineering and is made available with permission of Politechnika Wrocławska.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Journal Articles
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