A review of methods on buildability quantification of extrusion-based 3D concrete printing: From analytical modelling to numerical simulation

Herein, different kinds of methods for buildability quantification of 3D concrete printing are reviewed, including experimental approaches, analytical modelling, and numerical simulations. A brief introduction on printing process is first given. This discusses the material properties in different stages. Material printability, which encompasses pumpability, extrudability and buildability, is then discussed. Subsequently, a brief review of the experimental and analytical models for buildability quantification is presented and they're discussed. An overview on the numerical tools for 3DCP is then given. These numerical models can quantify structural buildability and optimize the printing parameters, therefore, providing a more economical solution for buildability quantification. In the end, a summary and discussion on the limitations of numerical tools for buildability quantification are provided, as well as recommendations for their improvement.