Method of Enhancing Inter-Layer Bond Strength in Construction-Scale 3D Printing with Mortar by Effective Bond Area Amplification (2019-03)¶

10.1016/j.matdes.2019.107684

Marchment Taylor, Sanjayan Jay, Xia Ming
Journal Article - Materials & Design, Vol. 169

Abstract

3D Construction Printing (3DCP) is a new and emerging technology that is set to revolutionise construction. Currently the technology is in its early stages ofdevelopment and many hurdles are yet to overcome. Particularly in the field of extrusion 3DCP with cementitious materials, one of the primary hurdles is the weak interface bonds. Theweakness in bonds is hypothesised to bepresent due to the layered fabrication ofa stiffcementitiousmix that creates a localised void structure. Due to the timegap intervals between depositions, the bond strength decreases due to lack ofintermixing. This paper seeks to explore a method to strengthen the interlayer bonds, by applying a cementitious paste at the interface, to minimise voids and promote bond area. Using a flatbed scanner and a unique method ofimage processing on printed colour layers, a quantitative evaluation ofthe contact area, “effective bond” area, was determined. The application ofthese experimental and analytical methods shows that an increase in bond strength is achieved, which is proportional to the effective bond area.

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23 References

199 Citations

BibTeX

@article{marc_sanj_xia.2019.MoEILBSiCS3PwMbEBAA,
  author            = "Taylor Marchment and Jay Gnananandan Sanjayan and Ming Xia",
  title             = "Method of Enhancing Inter-Layer Bond Strength in Construction-Scale 3D Printing with Mortar by Effective Bond Area Amplification",
  doi               = "10.1016/j.matdes.2019.107684",
  year              = "2019",
  journal           = "Materials & Design",
  volume            = "169",
}

Formatted Citation

IEEE

T. Marchment, J. G. Sanjayan and M. Xia, “Method of Enhancing Inter-Layer Bond Strength in Construction-Scale 3D Printing with Mortar by Effective Bond Area Amplification”, Materials & Design, vol. 169, 2019, doi: 10.1016/j.matdes.2019.107684.

CMOS

Marchment, Taylor, Jay Gnananandan Sanjayan, and Ming Xia. “Method of Enhancing Inter-Layer Bond Strength in Construction-Scale 3D Printing with Mortar by Effective Bond Area Amplification”. Materials & Design 169 (2019). https://doi.org/10.1016/j.matdes.2019.107684.