Method of enhancing interlayer bond strength in construction scale 3D printing with mortar by effective bond area amplification
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TLDR
In this article, the authors explored a method to strengthen the interlayer bonds by applying a cementitious paste at the interface, to minimise voids and promote bond area, using a flatbed scanner and a unique method of image processing on printed color layers.About:
This article is published in Materials & Design.The article was published on 2019-05-05 and is currently open access. It has received 129 citations till now. The article focuses on the topics: Bond strength & Cementitious.read more
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Digital Concrete: A Review
TL;DR: A review of the state of the art in the newly forming field of digital fabrication with concrete, and aims to provide some direction in terms of the research challenges encountered thus far is provided in this article.
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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
Mesh reinforcing method for 3D Concrete Printing
Taylor Marchment,Jay Sanjayan +1 more
TL;DR: A new in-process method is presented in this paper to embed mesh reinforcement at the same time when concrete layers are printed to simulate a continuous reinforcement.
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Development of 3D printable engineered cementitious composites with ultra-high tensile ductility for digital construction
TL;DR: In this paper, a 3D-printable engineered cementitious composites (ECC) exhibiting ultra-high tensile strain capacity of more than 8%, which can be used for digital construction of self-reinforced concrete structures, reducing the reliance on conventional steel reinforcement.
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Development of 3D-printable ultra-high performance fiber-reinforced concrete for digital construction
TL;DR: In this paper, a non-proprietary 3D-printable ultra-high-performance fiber-reinforced concrete (UHPFRC) was developed and compared to that of conventional mold-cast UHPFCC.
References
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3D printing using concrete extrusion: A roadmap for research
Richard A. Buswell,W.R. Leal de Silva,Scott Z. Jones,Justin Dirrenberger,Justin Dirrenberger +4 more
TL;DR: In this article, the relationship between fresh and hardened paste, mortar, and concrete material properties and how they influence the geometry of the created object is explored and classified by construction application to identify the spectrum of future research exploration in this emerging field.
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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.
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Structural built-up of cement-based materials used for 3D-printing extrusion techniques
TL;DR: In this paper, the authors investigated the role of the structural build-up properties of concrete and cement-based materials in a layer-by-layer construction technique and proposed a theoretical framework to optimize the building rate.
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Vision of 3D printing with concrete — Technical, economic and environmental potentials
Geert De Schutter,Karel Lesage,Viktor Mechtcherine,Venkatesh Naidu Nerella,Guillaume Habert,Isolda Agustí-Juan +5 more
TL;DR: A vision is presented on 3D printing with concrete, considering technical, economic and environmental aspects, and it is expected that for structures with the same functionality, DFC will environmentally perform better over the entire service life in comparison with conventionally produced concrete structures.