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Title: Mechanical properties and deformation behaviour of early age concrete in the context of digital construction
Authors: Panda, Biranchi
Lim, Jian Hui
Tan, Ming Jen
Keywords: Engineering::Mechanical engineering
Issue Date: 2019
Source: Panda, B., Lim, J. H., & Tan, M. J. (2019). Mechanical properties and deformation behaviour of early age concrete in the context of digital construction. Composites Part B: Engineering, 165, 563-571. doi:10.1016/j.compositesb.2019.02.040
Journal: Composites Part B: Engineering
Abstract: Digital construction is gradually opening unlimited possibilities for building and concrete industry. The key secret for a robust print process lies in our understanding of the processing technology and material fresh properties, in addition to developing novel measurement and control techniques. This paper aims to gain a better understanding of early age mechanical properties of 3D printable materials and improve it for the requirement of large scale concrete printing. Experimental investigations were carried out to measure green strength and stiffness of fresh fly ash-cement mortar with applied 3D optical metrology. The compressive green strength was linked with material yield strength evolution and later, modified with nanoclay for higher buildability properties. Nanoclay addition deceased the layer deformation due to significant increase in Young's modulus and to estimate this uncontrolled deformation, a mathematical function was formulated, which subsequently validated by comparison to printing experiments.
ISSN: 1359-8368
DOI: 10.1016/j.compositesb.2019.02.040
Rights: © 2019 Elsevier Ltd. All rights reserved. This paper was published in Composites Part B: Engineering and is made available with permission of Elsevier Ltd.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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