Comparative economic, environmental and productivity assessment of a concrete bathroom unit fabricated through 3D printing and a precast approach
The purpose of this study is to perform a comparative study of economic cost, environmental impacts, and productivity associated with manufacturing a prefabricated bathroom unit (PBU, L: 1620 mm; W: 1500 mm; H: 2800 mm) via extrusion-based 3D concrete printing (3DCP) and a precast approach, respecti...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2021
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/148289 |
| _version_ | 1826128265656401920 |
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| author | Weng, Yiwei Li, Mingyang Ruan, Shaoqin Wong, Teck Neng Tan, Ming Jen Ow Yeong, Kah Leong Qian, Shunzhi |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Weng, Yiwei Li, Mingyang Ruan, Shaoqin Wong, Teck Neng Tan, Ming Jen Ow Yeong, Kah Leong Qian, Shunzhi |
| author_sort | Weng, Yiwei |
| collection | NTU |
| description | The purpose of this study is to perform a comparative study of economic cost, environmental impacts, and productivity associated with manufacturing a prefabricated bathroom unit (PBU, L: 1620 mm; W: 1500 mm; H: 2800 mm) via extrusion-based 3D concrete printing (3DCP) and a precast approach, respectively. The scope of this study includes material consumption, electricity expenditure, labor cost/productivity, and installation cycle. The results reveal that a PBU fabricated by 3DCP achieves a reduction of 25.4% in overall cost, 85.9% in CO emission, and 87.1% in energy consumption compared to the precast one. 3DCP also realizes a PBU with reduced self-weight (i.e., 26.2% lighter) and higher productivity (i.e., 48.1% improved) compared to the precast one. The above enhancements were found to be ascribed to the formwork-free fabrication in 3DCP. Finally, sensitivity analysis reveals the significance of formwork re-usage to the outcomes and demonstrates the potentials of 3DCP for small batches or customized manufacturing of PBUs. 2 |
| first_indexed | 2024-10-01T07:22:08Z |
| format | Journal Article |
| id | ntu-10356/148289 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:22:08Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1482892021-05-08T20:11:48Z Comparative economic, environmental and productivity assessment of a concrete bathroom unit fabricated through 3D printing and a precast approach Weng, Yiwei Li, Mingyang Ruan, Shaoqin Wong, Teck Neng Tan, Ming Jen Ow Yeong, Kah Leong Qian, Shunzhi School of Mechanical and Aerospace Engineering School of Civil and Environmental Engineering Singapore Centre for 3D Printing Engineering 3D Concrete Printing Sustainability The purpose of this study is to perform a comparative study of economic cost, environmental impacts, and productivity associated with manufacturing a prefabricated bathroom unit (PBU, L: 1620 mm; W: 1500 mm; H: 2800 mm) via extrusion-based 3D concrete printing (3DCP) and a precast approach, respectively. The scope of this study includes material consumption, electricity expenditure, labor cost/productivity, and installation cycle. The results reveal that a PBU fabricated by 3DCP achieves a reduction of 25.4% in overall cost, 85.9% in CO emission, and 87.1% in energy consumption compared to the precast one. 3DCP also realizes a PBU with reduced self-weight (i.e., 26.2% lighter) and higher productivity (i.e., 48.1% improved) compared to the precast one. The above enhancements were found to be ascribed to the formwork-free fabrication in 3DCP. Finally, sensitivity analysis reveals the significance of formwork re-usage to the outcomes and demonstrates the potentials of 3DCP for small batches or customized manufacturing of PBUs. 2 National Research Foundation (NRF) Accepted version 2021-05-05T04:24:35Z 2021-05-05T04:24:35Z 2020 Journal Article Weng, Y., Li, M., Ruan, S., Wong, T. N., Tan, M. J., Ow Yeong, K. L. & Qian, S. (2020). Comparative economic, environmental and productivity assessment of a concrete bathroom unit fabricated through 3D printing and a precast approach. Journal of Cleaner Production, 261, 121245-. https://dx.doi.org/10.1016/j.jclepro.2020.121245 0959-6526 https://hdl.handle.net/10356/148289 10.1016/j.jclepro.2020.121245 2-s2.0-85082797319 261 121245 en Journal of Cleaner Production © 2020 Elsevier Ltd. All rights reserved. This paper was published in Journal of Cleaner Production and is made available with permission of Elsevier Ltd. application/pdf |
| spellingShingle | Engineering 3D Concrete Printing Sustainability Weng, Yiwei Li, Mingyang Ruan, Shaoqin Wong, Teck Neng Tan, Ming Jen Ow Yeong, Kah Leong Qian, Shunzhi Comparative economic, environmental and productivity assessment of a concrete bathroom unit fabricated through 3D printing and a precast approach |
| title | Comparative economic, environmental and productivity assessment of a concrete bathroom unit fabricated through 3D printing and a precast approach |
| title_full | Comparative economic, environmental and productivity assessment of a concrete bathroom unit fabricated through 3D printing and a precast approach |
| title_fullStr | Comparative economic, environmental and productivity assessment of a concrete bathroom unit fabricated through 3D printing and a precast approach |
| title_full_unstemmed | Comparative economic, environmental and productivity assessment of a concrete bathroom unit fabricated through 3D printing and a precast approach |
| title_short | Comparative economic, environmental and productivity assessment of a concrete bathroom unit fabricated through 3D printing and a precast approach |
| title_sort | comparative economic environmental and productivity assessment of a concrete bathroom unit fabricated through 3d printing and a precast approach |
| topic | Engineering 3D Concrete Printing Sustainability |
| url | https://hdl.handle.net/10356/148289 |
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