Geometric quality assurance for 3D concrete printing and hybrid construction manufacturing using a standardised test part for benchmarking capability

Buswell, Richard A.; Xu, Jie; Becker, Daniel De; Dobrzanski, James; Provis, John L.; Kolawole, John Temitope; Kinnell, Peter

doi:10.1016/j.cemconres.2022.106773

Cited by 29 publications

(6 citation statements)

References 36 publications

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“…Nozzles with trowels and real-time postprocessing techniques, such as sanding, cutting, and plastering, can be used to compensate for poor forming accuracy. [140][141][142] Researchers are exploring optimized geopolymer formulations and other strategies to improve forming accuracy. [143,144] According to recent research, the addition of viscositymodifying admixtures, such as kaolin and Triton, to geopolymer ink, along with different alkali metal ions, such as Na, K, and Cs, can improve the forming accuracy associated with geopolymer direct ink writing, an extrusion-based 3D-printing technique.…”

Section: Printing Accuracy Of the 3dgp Techniquementioning

confidence: 99%

“…Achieving a good forming accuracy in construction‐scale 3D printing can be challenging as material rheology, nozzle vibration properties, and feeding rate affect the process. Nozzles with trowels and real‐time post‐processing techniques, such as sanding, cutting, and plastering, can be used to compensate for poor forming accuracy [140–142] . Researchers are exploring optimized geopolymer formulations and other strategies to improve forming accuracy [143,144] …”

Section: D Geopolymer‐printed Compositesmentioning

confidence: 99%

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3D Printable Geopolymer Composites Reinforced with Carbon‐Based Nanomaterials – A Review

Basha

Rehman

Khalid

et al. 2023

The Chemical Record

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Three‐dimensional (3D) geopolymer printing (3DGP) technology is a rapidly evolving digital fabrication method used in the construction industry. This technology offers significant benefits over 3D concrete printing in terms of energy saving and reduced carbon emissions, thus promoting sustainability. 3DGP technology is still evolving, and researchers are striving to develop high‐performance printable materials and different methods to improve its robustness and efficiency. Carbon‐based nanomaterials (CBNs) with beneficial properties have a wide range of applications in various fields, including as concrete/geopolymer systems in construction. This paper comprehensively reviews the research progress on carbon‐based nanomaterials (CBNs) used to develop extrusion‐based 3D geopolymer printing (3DGP) technology, including dispersion techniques, mixing methods, and the materials′ performance. The rheological, mechanical, durability, and other characteristics of these materials are also examined. Furthermore, the existing research limitations and the prospects of using 3DGP technology to produce high‐quality composite mixtures are critically evaluated.

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Section: Printing Accuracy Of the 3dgp Techniquementioning

confidence: 99%

Section: D Geopolymer‐printed Compositesmentioning

confidence: 99%

3D Printable Geopolymer Composites Reinforced with Carbon‐Based Nanomaterials – A Review

Basha

Rehman

Khalid

et al. 2023

The Chemical Record

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“…There is a lack of knowledge regarding the accuracy of concrete printing processes, as well as how they compare with each other [5]. As part of the digital fabrication process, a variety of stages are involved in the printing of an object [8].…”

Section: Quality Control For Additive Manufacturingmentioning

confidence: 99%

Digital Twinning in Additive Manufacturing - Closing the Digital-Physical-Digital Loop by Automated Integration of Captured Geometric Data into Fabrication Information Models

Slepicka,

Mawas,

Borrmann

et al. 2023

Lecture Notes in Civil Engineering

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As part of the digitization of the AEC industry, the Digital Twin concept is becoming increasingly important. Originating in the manufacturing industry, the concept at its core involves a bidirectional coupling of the physical product and its digital counterpart with the aim of keeping the two in sync. Without appropriate capabilities to realize such synchronization, the concept always remained as an unattainable vision for the AEC industry. Adapting additive manufacturing (AM) for construction, however, creates unique opportunities to realize this vision by enabling automation in both directions, from digital to physical product and vice versa. As a fully automatable manufacturing method where robotic processes are typically controlled by the digital representation of the product, AM realizes the digital-to-physical link for this purpose. Conversely, based on the same digital representation of the product, the acquisition of the physical implementation of the manufacturing process can be automated, enabling the physical-to-digital connection. This paper uses three AM application scenarios to illustrate, on the one hand, the need for automating quality control and, on the other hand, to describe approaches for its realization. In particular, the benefits of synergy between automated quality control (QC) and fabrication information modeling (FIM) to form a digital-physical-digital loop are explored.

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“…3D Concrete Printing are based on the principles of Additive Manufacturing (AM) which is defined by ASTM as ‘a process of joining materials to make objects from 3D model data, usually layer upon layer’ (Buswell et al, 2022; Suntharalingam et al, 2019). In recent years, 3DCP gain rapid development due to the distinct advantages in structural optimization and sparing the formworks in the conventional construction (De Schutter et al, 2018; Ma et al, 2020a).…”

Section: Introductionmentioning

confidence: 99%

Investigation on geometric and surface finish quality of 3D concrete printed walls with hollow section

Yang,

Wu,

Han

et al. 2023

Advances in Structural Engineering

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3D concrete printed walls with hollow sections are now widely adopted in 3D concrete printing applications across the construction industry. One of the significant challenges in the printing process is achieving superior surface finishes. Previous research has predominantly focused on the overall geometry of these walls, often neglecting surface finish quality at the intersections of formwork and supporting filaments. This study is dedicated to optimizing the geometric arrangement of supporting filaments and enhancing print quality at these critical intersections. Firstly, two arrangement strategies, the standard approach and the average approach, are introduced to establish high-quality geometric section configurations, with practical demonstrations on both rectangular and arc-shaped walls. Subsequently, the width of concrete filaments is considered to enhance surface finish quality at the intersections. Two print quality control methods, namely the e- Δ control rule and the r- Δ control rule, are then developed. To assess the effectiveness of these arrangement strategies and control methods, configurations of walls with specific dimensions are compared, and printing experiments are conducted. Finally, recommendations for practical application are provided, aimed at improving both the geometric and surface finish quality of 3D concrete printed walls with hollow sections.

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Geometric quality assurance for 3D concrete printing and hybrid construction manufacturing using a standardised test part for benchmarking capability

Cited by 29 publications

References 36 publications

3D Printable Geopolymer Composites Reinforced with Carbon‐Based Nanomaterials – A Review

3D Printable Geopolymer Composites Reinforced with Carbon‐Based Nanomaterials – A Review

Digital Twinning in Additive Manufacturing - Closing the Digital-Physical-Digital Loop by Automated Integration of Captured Geometric Data into Fabrication Information Models

Investigation on geometric and surface finish quality of 3D concrete printed walls with hollow section

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