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Mix design and fresh properties for high-performance printing concrete

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journal contribution
posted on 15.11.2012, 13:18 authored by Thanh T. Le, Simon Austin, Sungwoo Lim, Richard BuswellRichard Buswell, Alistair Gibb, Tony Thorpe
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.

History

School

  • Architecture, Building and Civil Engineering

Citation

LE, T.T. ... et al., 2012. Mix design and fresh properties for high-performance printing concrete. Materials and Structures, 45, pp. 1221–1232.

Publisher

Springer Verlag © International Union of Laboratories and Experts in Construction Materials, Systems and Structures (RILEM)

Version

AM (Accepted Manuscript)

Publication date

2012

Notes

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

ISSN

1359-5997

eISSN

1871-6873

Language

en