Feasibility of Using Low CO2 Concrete Alternatives in Extrusion-Based 3D Concrete Printing (2018-09)¶

10.1007/978-3-319-99519-9_25

Chen Yu, Veer Frederic, Çopuroğlu Oğuzhan, Schlangen Erik
Contribution - Proceedings of the 1^st RILEM International Conference on Concrete and Digital Fabrication, pp. 269-276

Abstract

In conventional concrete, replacing high-volume (more than 45%) of ordinary Portland cement (OPC) by supplementary cementitious materials (SCMs) is not a novel CO2 reduction method, whereas rarely in 3D printable concrete. This study attempts to explore the feasibility of using SCMs in 3D printable concrete. Initially, the existing binder mixes, required fresh properties and a research method of 3D printable concrete are investigated by reviewing the relevant papers. Additionally, the constraints and opportunities of using SCMs in 3D printable concrete are illustrated and summarized. Finally, it has been found that up to 45% of cement can be replaced by a blend of fly ash and silica fume. The essential fresh properties of 3D printable concrete include extrudability, workability, open time, buildability and structural build-up, which are influenced by the binder mix, particle size distribution, water to binder ratio, binder to aggregate ratio, admixture addition, the dosage of reinforced-fibers, etc. On the other hand, there are many limitations to develop SCMs-based 3D printable concrete, such as few relevant studies, a lack of the certificated standard, massive related-parameters and the shortage of common SCMs. For the first three problems, it can be solved with the development of 3D printable concrete. For the last one, calcined clay is one potential alternative for developing sustainable 3D printable concrete in the areas where are in short supply of fly ash and silica fume

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11 References

72 Citations

BibTeX

@inproceedings{chen_veer_copu_schl.2019.FoULCCAiEB3CP,
  author            = "Yu Chen and Frederic Veer and Oğuzhan Çopuroğlu and Erik Schlangen",
  title             = "Feasibility of Using Low CO2 Concrete Alternatives in Extrusion-Based 3D Concrete Printing",
  doi               = "10.1007/978-3-319-99519-9_25",
  year              = "2019",
  volume            = "19",
  pages             = "269--276",
  booktitle         = "Proceedings of the 1st RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2018",
  editor            = "Timothy Paul Wangler and Robert Johann Flatt",
}

Formatted Citation

IEEE

Y. Chen, F. Veer, O. Çopuroğlu and E. Schlangen, “Feasibility of Using Low CO2 Concrete Alternatives in Extrusion-Based 3D Concrete Printing”, in Proceedings of the 1^st RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2018, 2019, vol. 19, pp. 269–276. doi: 10.1007/978-3-319-99519-9_25.

CMOS

Chen, Yu, Frederic Veer, Oğuzhan Çopuroğlu, and Erik Schlangen. “Feasibility of Using Low CO2 Concrete Alternatives in Extrusion-Based 3D Concrete Printing”. In Proceedings of the 1^st RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2018, edited by Timothy Paul Wangler and Robert Johann Flatt, 19:269–76, 2019. https://doi.org/10.1007/978-3-319-99519-9_25.