Improving the Bonding Adhesion of the Cold Joints of Normal and Lightweight 3D Printing Mortars (2020-07)¶

10.1007/978-3-030-49916-7_54

Verian Kho, Ashcroft Jarron, Carli Matthew, Bright Randall, Maandi Eerik, Avakian Avak, Baaklini Edouard
Contribution - Proceedings of the 2^nd RILEM International Conference on Concrete and Digital Fabrication, pp. 527-536

Abstract

Two types of mortars were developed for 3D Construction Printing (3DCP), which are normal and lightweight 3D mortars (termed as LATICRETE ® 3D Printing Mortar NW and LATICRETE ® 3D Printing Mortar LW, respectively). This paper presents the properties of the aforementioned mortars in fresh and hardened states, as well as states of curing for cold joint testing. The fresh properties assessed consist of the determination of flow, viscosity, initial set time, and unit weight. In its hardened state, each type of mortar was tested for its mechanical (i.e., compressive and tensile strengths) and freeze-thaw (i.e., ASTM C666) properties. The printability of the mortars was demonstrated by printing small (20-layer; 12 cm high with 6 mm layer thickness; within 5 min) and large-scale structures (a full-scale villa – normal 3D mortar only). Furthermore, a lab-scale test was developed to assess the bonding strength between layers (both cold and fresh joints). The results of the test indicate that the interlayer adhesion at the cold joint can be improved by applying a bonding agent (i.e., LATICRETE® 254 Platinum) on its surface prior to the print.

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15 References

5 Citations

BibTeX

@inproceedings{veri_ashc_carl_brig.2020.ItBAotCJoNaL3PM,
  author            = "Kho P. Verian and Jarron Ashcroft and Matthew D. Carli and Randall P. Bright and Eerik Maandi and Avak Avakian and Edouard Baaklini",
  title             = "Improving the Bonding Adhesion of the Cold Joints of Normal and Lightweight 3D Printing Mortars",
  doi               = "10.1007/978-3-030-49916-7_54",
  year              = "2020",
  volume            = "28",
  pages             = "527--536",
  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

K. P. Verian, “Improving the Bonding Adhesion of the Cold Joints of Normal and Lightweight 3D Printing Mortars”, in Proceedings of the 2^nd RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2020, 2020, vol. 28, pp. 527–536. doi: 10.1007/978-3-030-49916-7_54.

CMOS

Verian, Kho P., Jarron Ashcroft, Matthew D. Carli, Randall P. Bright, Eerik Maandi, Avak Avakian, and Edouard Baaklini. “Improving the Bonding Adhesion of the Cold Joints of Normal and Lightweight 3D Printing Mortars”. 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, 28:527–36, 2020. https://doi.org/10.1007/978-3-030-49916-7_54.