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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/10930

Title: Mix design and fresh properties for high-performance printing concrete
Authors: Le, Thanh T.
Austin, Simon A.
Lim, Sungwoo
Buswell, Richard A.
Gibb, Alistair G.F.
Thorpe, Tony
Keywords: Additive manufacturing
Build
Concrete
Extrusion
Open time
Printing
Issue Date: 2012
Publisher: Springer Verlag © International Union of Laboratories and Experts in Construction Materials, Systems and Structures (RILEM)
Citation: LE, T.T. ... et al., 2012. Mix design and fresh properties for high-performance printing concrete. Materials and Structures, 45, pp. 1221–1232.
Abstract: This paper presents the experimental results concerning the mix design and fresh properties of a high-performance fibre-reinforced fine-aggregate concrete for printing concrete. This concrete has been designed to be extruded through a nozzle to build layer-by-layer structural components. The printing process is a novel digitally controlled additive manufacturing method which can build architectural and structural components without formwork, unlike conventional concrete construction methods. The most critical fresh properties are shown to be extrudability and buildability, which have mutual relationships with workability and open time. These properties are significantly influenced by the mix proportions and the presence of superplasticiser, retarder, accelerator and polypropylene fibres. An optimum mix is identified and validated by the full-scale manufacture of a bench component.
Description: This article was published in the journal, Materials and Structures [© RILEM] and the definitive version is available at: http://dx.doi.org/10.1617/s11527-012-9828-z
Version: Accepted for publication
DOI: 10.1617/s11527-012-9828-z
URI: https://dspace.lboro.ac.uk/2134/10930
Publisher Link: http://dx.doi.org/10.1617/s11527-012-9828-z
ISSN: 1359-5997
Appears in Collections:Published Articles (Civil and Building Engineering)

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