Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/148289
Title: Comparative economic, environmental and productivity assessment of a concrete bathroom unit fabricated through 3D printing and a precast approach
Authors: Weng, Yiwei
Li, Mingyang
Ruan, Shaoqin
Wong, Teck Neng
Tan, Ming Jen
Ow Yeong, Kah Leong
Qian, Shunzhi
Keywords: Engineering
Issue Date: 2020
Source: 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
Journal: Journal of Cleaner Production 
Abstract: 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
URI: https://hdl.handle.net/10356/148289
ISSN: 0959-6526
DOI: 10.1016/j.jclepro.2020.121245
Rights: © 2020 Elsevier Ltd. All rights reserved. This paper was published in Journal of Cleaner Production and is made available with permission of Elsevier Ltd.
Fulltext Permission: embargo_20220710
Fulltext Availability: With Fulltext
Appears in Collections:SC3DP Journal Articles

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