TY - JOUR
T1 - Comparative economic, environmental and productivity assessment of a concrete bathroom unit fabricated through 3D printing and a precast approach
AU - Weng, Yiwei
AU - Li, Mingyang
AU - Ruan, Shaoqin
AU - Wong, Teck Neng
AU - Tan, Ming Jen
AU - Ow Yeong, Kah Leong
AU - Qian, Shunzhi
N1 - Funding Information:
The authors would like to acknowledge National Research Foundation, Prime Minister's Office, Singapore under its Medium-Sized Centre funding scheme, Singapore Centre for 3D Printing, Sembcorp Design and Construction Pte Ltd, and Sembcorp Architects and Engineers Pte Ltd for their funding and support in this research project.
Funding Information:
The authors would like to acknowledge National Research Foundation, Prime Minister’s Office, Singapore under its Medium-Sized Centre funding scheme, Singapore Centre for 3D Printing , Sembcorp Design and Construction Pte Ltd , and Sembcorp Architects and Engineers Pte Ltd for their funding and support in this research project.
Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2020/7/10
Y1 - 2020/7/10
N2 - 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 CO2 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.
AB - 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 CO2 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.
KW - 3D concrete printing
KW - Cost
KW - Formwork
KW - Productivity
KW - Sensitivity analysis
KW - Sustainability
UR - http://www.scopus.com/inward/record.url?scp=85082797319&partnerID=8YFLogxK
U2 - 10.1016/j.jclepro.2020.121245
DO - 10.1016/j.jclepro.2020.121245
M3 - Journal article
AN - SCOPUS:85082797319
SN - 0959-6526
VL - 261
JO - Journal of Cleaner Production
JF - Journal of Cleaner Production
M1 - 121245
ER -
