Journal ArticleDOI
A novel additive mortar leveraging internal curing for enhancing interlayer bonding of cementitious composite for 3D printing
TLDR
In this paper, an additive mortar based on calcium sulphoaluminate (CSA) cement, cellulose fiber and limestone filler was proposed for application between layers, which permits extension of printing time interval and also caters for breaks in construction printing.About:
This article is published in Construction and Building Materials.The article was published on 2020-05-30. It has received 91 citations till now. The article focuses on the topics: Mortar & Ultimate tensile strength.read more
Citations
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Extrusion-based concrete 3D printing from a material perspective : a state-of-the-art review
TL;DR: In this article, the authors provide a comprehensive review of the material behavior for extrusion-based concrete 3D printing spanning from early age to long-term performance, including the mechanical response in the hardened state, and different strategies to introduce reinforcement.
Journal ArticleDOI
Mechanical improvement of continuous steel microcable reinforced geopolymer composites for 3D printing subjected to different loading conditions
TL;DR: In this paper, continuous and simultaneous micro-cable reinforcement methods are investigated to accommodate the 3D flexible and automatic characteristics of additive manufacturing processes, and to satisfy the mechanical-property requirements for construction applications.
Journal ArticleDOI
Interlayer bonding improvement of 3D printed concrete with polymer modified mortar: Experiments and molecular dynamics studies
TL;DR: In this paper, the effects of the setting time of the printed concrete and changes of the interlayer moisture were tested and the optimal polymer mortar that strengthened the interfaces most effectively was identified.
Journal ArticleDOI
Mix design concepts for 3D printable concrete: A review
Chao Zhang,Venkatesh Naidu Nerella,Anurag Krishna,Shen Wang,Yamei Zhang,Viktor Mechtcherine,Nemkumar Banthia +6 more
TL;DR: In this paper, the state-of-the-art on mix design concepts for 3D printable concrete (3DPC) is presented, where various aspects of mixture compositions and their effects on properties of 3DPC are highlighted and mix design approaches are described.
Journal ArticleDOI
Rheological and pumping behaviour of 3D printable cementitious materials with varying aggregate content
TL;DR: In this article, a study on the rheological behavior of 3D printable cementitious materials with different aggregate-to-binder ratios (a/b) is presented.
References
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Journal ArticleDOI
Large-scale 3D printing of ultra-high performance concrete – a new processing route for architects and builders
Clément Gosselin,Romain Duballet,Philippe Roux,Nadja Gaudillière,Justin Dirrenberger,Philippe-H. Morel +5 more
TL;DR: In this article, a new additive manufacturing processing route is introduced for ultra-high performance concrete, in which a material is deposited layer by layer through an extrusion printhead mounted on a 6-axis robotic arm.
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Hardened properties of high-performance printing concrete
Thanh T. Le,Simon A. Austin,Sungwoo Lim,Richard A. Buswell,R. Law,Alistair G.F. Gibb,Tony Thorpe +6 more
TL;DR: In this paper, the authors presented the hardened properties of a high-performance fiber-reinforced fine-aggregate concrete extruded through a 9mm diameter nozzle to build layer-by-layer structural components in a printing process.
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Rheological requirements for printable concretes
Nicolas Roussel,Nicolas Roussel +1 more
TL;DR: In this article, the authors studied the rheological requirements for printable concrete in terms of yield stress, viscosity, elastic modulus, critical strain, and structuration rate.
Journal ArticleDOI
Structure and properties of the cellulose microfibril
TL;DR: In this article, the current structural models of the cellulose microfibril as well as its mechanical and thermal properties are reviewed, and the contribution and limit of different methods employed such as electron microscopy, infrared spectroscopy, X-ray scattering and diffraction, solid state nuclear magnetic resonance spectrography, and molecular modeling are also discussed.
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Cellulosic fiber reinforced cement-based composites: A review of recent research
TL;DR: A review of the research done during the last years in the area of the cement-based composites reinforced with cellulose fibers is presented in this article, where the main achievements found have been the development of durable cement composites with optimized fiber-matrix adhesion.