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Development of Sustainable Production Technology of Free-Form Concrete Panels Using a Multi-Point Press CNC Machine

Author

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  • Sunkuk Kim

    (Department of Architectural Engineering, Kyung Hee University, Yongin-si 17104, Korea)

  • Seunghyun Son

    (Department of Architectural Engineering, Kyung Hee University, Yongin-si 17104, Korea)

  • Donghoon Lee

    (Department of Architectural Engineering, Hanbat National University, Daejeon 34158, Korea)

Abstract

Maintaining shape accuracy in the production of concrete panels of free-form buildings is time-consuming and costly. In addition, disposable molds used for free-form panels are not sustainable. Such problems can be solved by developing a suitable computerized numeric control (CNC) machine that can produce an accurately shaped reusable form for free-form concrete materials in a short period of time. This project develops a production technology of quality free-form concrete panels using a CNC machine and verifies the shape quality through an experiment. We designed a multi-point press CNC machine and verified its quality. The CNC machine implements a smooth free-form shape by changing the shape of the silicon plate by movement of the rods. The silicone plate for the CNC machine generates a slight error due to the elastic cover and mechanical clearance. The mean error rate was within 3%, based on the thickness of the panels, at the 95% confidence level. Verification of these errors will provide meaningful information to a similar type of machine development. In addition, the project results will be helpful in technological development for the production of free-form concrete panels of uniform quality, whose shape accuracy is not influenced by the skills and competence of the workers producing the panels.

Suggested Citation

  • Sunkuk Kim & Seunghyun Son & Donghoon Lee, 2021. "Development of Sustainable Production Technology of Free-Form Concrete Panels Using a Multi-Point Press CNC Machine," Sustainability, MDPI, vol. 13(4), pages 1-15, February.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:4:p:1990-:d:498190
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    References listed on IDEAS

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    1. Beatriz Plaza, 2006. "The Return on Investment of the Guggenheim Museum Bilbao," International Journal of Urban and Regional Research, Wiley Blackwell, vol. 30(2), pages 452-467, June.
    2. Donghoon Lee & Sunkuk Kim, 2020. "Energy and CO 2 Reduction of Aluminum Powder Molds for Producing Free-Form Concrete Panels," Sustainability, MDPI, vol. 12(22), pages 1-10, November.
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    Cited by:

    1. Jongyoung Youn & Jiyoung Yun & Sungjin Kim & Bumjin Han & Sunglok Do & Donghoon Lee, 2022. "An Analytical Study of the Latest Trends of Free-Form Molds," Sustainability, MDPI, vol. 14(5), pages 1-14, March.
    2. Seunghyun Son & Dongjoo Lee & Jinhyuk Oh & Sunkuk Kim, 2021. "Embodied CO 2 Reduction Effects of Free-Form Concrete Panel Production Using Rod-Type Molds with 3D Plastering Technique," Sustainability, MDPI, vol. 13(18), pages 1-14, September.

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