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Assessment of Printability of Concrete Based on Packing of Aggregates (2024-09)

10.24355/dbbs.084-202408161143-0

 Paritala Spandana, Singh Prashant, Kamakshi Tippabhotla,  Subramaniam Kolluru
Contribution - Supplementary Proceedings of the 4th RILEM International Conference on Concrete and Digital Fabrication

Abstract

The fluidity of concrete is a key parameter that determines the printability of the mixture in an extrusion-based printing process. The printability of concrete is influenced by the relative proportions of aggregate and paste, paste rheology and the aggregate properties. The complex relationship of the aggregate packing and paste content in excess to the demand and the printability of the mixture is explored using concrete made with two different types of aggregate, which have different packing densities. The paste content requirement for printable concrete mixture varies with aggregate packing and gradation. The mixtures made of aggregate with a higher maximum packing density are printable with a lower paste requirement. The printability of concrete is identified with respect to aggregate packing and excess paste content. Concrete mixtures of the same paste rheology are printable at the same excess paste content irrespective of the aggregate packing densities.

7 References

  1. Lao Wenxin, Li Mingyang, Wong Teck, Tan Ming et al. (2020-02)
    Improving Surface-Finish-Quality in Extrusion-Based 3D Concrete Printing Using Machine-Learning-Based Extrudate-Geometry-Control
  2. Lim Sungwoo, Buswell Richard, Le Thanh, Austin Simon et al. (2011-07)
    Developments in Construction-Scale Additive Manufacturing Processes
  3. Liu Yi, Wang Li, Yuan Qiang, Peng Jianwei (2023-09)
    Effect of Coarse Aggregate on Printability and Mechanical Properties of 3D Printed Concrete
  4. Paritala Spandana, Singaram Kailash, Bathina Indira, Khan Mohd et al. (2023-08)
    Rheology and Pumpability of Mix Suitable for Extrusion-Based Concrete 3D Printing:
    A Review
  5. Tay Yi, Qian Ye, Tan Ming (2019-05)
    Printability-Region for 3D Concrete Printing Using Slump- and Slump-Flow-Test
  6. Zhang Chao, Deng Zhicong, Chen Chun, Zhang Yamei et al. (2022-03)
    Predicting the Static Yield-Stress of 3D Printable Concrete Based on Flowability of Paste and Thickness of Excess-Paste-Layer
  7. Zhang Chao, Hou Zeyu, Chen Chun, Zhang Yamei et al. (2019-09)
    Design of 3D Printable Concrete Based on the Relationship Between Flowability of Cement-Paste and Optimum Aggregate-Content

0 Citations

BibTeX 
@inproceedings{pari_sing_kama_subr.2024.AoPoCBoPoA,
  author            = "Spandana Paritala and Prashant R. Singh and Tippabhotla A. Kamakshi and Kolluru V. L. Subramaniam",
  title             = "Assessment of Printability of Concrete Based on Packing of Aggregates",
  doi               = "10.24355/dbbs.084-202408161143-0",
  year              = "2024",
  booktitle         = "Supplementary Proceedings of the 4th RILEM International Conference on Concrete and Digital Fabrication",
  editor            = "Dirk Lowke and Niklas Freund and David Böhler and Friedrich Herding",
}
Formatted Citation

S. Paritala, P. R. Singh, T. A. Kamakshi and K. V. L. Subramaniam, “Assessment of Printability of Concrete Based on Packing of Aggregates”, in Supplementary Proceedings of the 4th RILEM International Conference on Concrete and Digital Fabrication, 2024. doi: 10.24355/dbbs.084-202408161143-0.

Paritala, Spandana, Prashant R. Singh, Tippabhotla A. Kamakshi, and Kolluru V. L. Subramaniam. “Assessment of Printability of Concrete Based on Packing of Aggregates”. In Supplementary Proceedings of the 4th RILEM International Conference on Concrete and Digital Fabrication, edited by Dirk Lowke, Niklas Freund, David Böhler, and Friedrich Herding, 2024. https://doi.org/10.24355/dbbs.084-202408161143-0.