Design of Energy-Efficient White Portland Cement Mortars for Digital Fabrication (2020-07)¶

10.1007/978-3-030-49916-7_7

Kurt Sibel, Atalay Yiğit, Aydın Ozan, Avcıoğlu Berrak, Yıldırım Tayfun, Göktepe Gizem, Emir Sedat, Bundur Zeynep, Paksoy Halime
Contribution - Proceedings of the 2^nd RILEM International Conference on Concrete and Digital Fabrication, pp. 64-72

Abstract

Additive manufacturing, i.e. three-dimensional (3D) printing technology has many advantages over traditional processes and the related technology is continuously improving. This study aims to develop an energyefficient White Portland cement (WPC) mortar mix suitable for 3D printing applications. The mortar mix contained a blended binder content using Çimsa Recipro50 calcium aluminate cement (CAC) along with Çimsa Super WPC (sWPC). Microencapsulated Phase Change Materials (mPCMs) added to the mix enhance thermal performance through latent heat storage capability. The CAC used in the study has an alumina content of at least 50% Mineralogical analysis of the CAC and sWPC binder were characterized by the XRD-Rietveld method. In terms of material design for 3D printing, printable mortars must be workable enough to be extruded (extrudability) and retain its shape with little or no deformation after extrusion (buildability). In this study, the printability of mortar was evaluated through workability loss, open time, green strength, and early-age compressive strength. Results showed that use of sWCP and CAC composite enables a thixotropic behavior, which is required for 3D printing. The designed mortar mixes can enable high flowability necessary for successful extrusion and have high green strength at fresh state to maintain stable printing. The results also showed that the use of mPCMs can influence printability while improving buildability.

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5 References

5 Citations

BibTeX

@inproceedings{kurt_atal_ayd_avc.2020.DoEEWPCMfDF,
  author            = "Sibel Kurt and Yiğit A. Atalay and Ozan Eray Aydın and Berrak Avcıoğlu and Tayfun Yıldırım and Gizem B. Göktepe and Sedat Emir and Zeynep Başaran Bundur and Halime Ö. Paksoy",
  title             = "Design of Energy-Efficient White Portland Cement Mortars for Digital Fabrication",
  doi               = "10.1007/978-3-030-49916-7_7",
  year              = "2020",
  volume            = "28",
  pages             = "64--72",
  booktitle         = "Proceedings of the 2nd RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2020",
  editor            = "Freek Paul Bos and Sandra Simaria de Oliveira Lucas and Robert Johannes Maria Wolfs and Theo A. M. Salet",
}

Formatted Citation

IEEE

S. Kurt, “Design of Energy-Efficient White Portland Cement Mortars for Digital Fabrication”, in Proceedings of the 2^nd RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2020, 2020, vol. 28, pp. 64–72. doi: 10.1007/978-3-030-49916-7_7.

CMOS

Kurt, Sibel, Yiğit A. Atalay, Ozan Eray Aydın, Berrak Avcıoğlu, Tayfun Yıldırım, Gizem B. Göktepe, Sedat Emir, Zeynep Başaran Bundur, and Halime Ö. Paksoy. “Design of Energy-Efficient White Portland Cement Mortars for Digital Fabrication”. In Proceedings of the 2^nd RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2020, edited by Freek Paul Bos, Sandra Simaria de Oliveira Lucas, Robert Johannes Maria Wolfs, and Theo A. M. Salet, 28:64–72, 2020. https://doi.org/10.1007/978-3-030-49916-7_7.