Manara - Qatar Research Repository
1-s2.0-S0003491623001628-main.pdf (6.87 MB)

Buildability Analysis on Effect of Structural Design in 3D Concrete Printing (3DCP): An Experimental and Numerical Study

Download (6.87 MB)
Version 2 2023-10-10, 12:08
Version 1 2023-07-10, 10:16
journal contribution
revised on 2023-10-10, 12:07 and posted on 2023-10-10, 12:08 authored by Shoukat Alim Khan, Hüseyin Ilcan, Ehsan Aminipour, Oğuzhan Şahin, Ans Al Rashid, Mustafa Şahmaran, Muammer Koç

The importance of numerical modeling and simulation approaches increases with increased scale as it allows for early results predictions. This study evaluated the buildability of novel construction and demolition waste (CDW)-based geopolymer materials for 3D printing (3DP) structures for the built environment. The feasibility of the developed numerical model for 3DP of built environment structures was also evaluated. This study reported the fresh-state properties of geopolymer-based materials, and based on these results, numerical modeling for 3DP of geopolymer material was performed. Three cylindrical structures with diameters of 300 mm, 450 mm, and 600 mm were printed, with the same printing conditions, resulting in buildability of 352.5 mm, 322.5 mm, and 277.5 mm (total height constructed before the collapse), respectively. In the next stage of the study, a comparative analysis was performed to assess the compatibility of numerical models for CDW-based geopolymer materials. In the numerical results, three structures showed early failure prediction from experimental results at 31.91%, 29.10%, and 29.73%, respectively. The geopolymer materials developed were suitable for 3DP, and close agreement in results and repeatability were observed. The numerical model provided a reliable failure prediction for different structures. Hence, the model can be utilized to evaluate the buildability of the structures before the actual 3DP, which can significantly reduce the time and cost of the project.

Other Information

Published in: Case Studies in Construction Materials
See article on publisher's website:


Open Access funding provided by the Qatar National Library



  • English



Publication Year

  • 2023

License statement

This Item is licensed under the Creative Commons Attribution 4.0 International License

Institution affiliated with

  • Hamad Bin Khalifa University
  • College of Science and Engineering - HBKU
  • Texas A&M University at Qatar

Usage metrics

    College of Science and Engineering - HBKU



    Ref. manager