Biocement Fabrication and Design Application for a Sustainable Urban Area

Chungmin Lee, Hyesun Lee and Ok Bin Kim
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Chungmin Lee: Interdisciplinary Program of EcoCreative, Ewha Womans University, Seoul 03760, Korea
Hyesun Lee: Interdisciplinary Program of EcoCreative, Ewha Womans University, Seoul 03760, Korea
Ok Bin Kim: Interdisciplinary Program of EcoCreative, Ewha Womans University, Seoul 03760, Korea

Sustainability, 2018, vol. 10, issue 11, 1-17

Abstract: Recently, designers have begun to pursue sustainability through the fabrication of materials from living organisms such as bacteria, fungi, and algae in order to address environmental issues. Based on the potential of materials from living organisms, this study has explored a sustainable design application using biocement formed thorough microbially-induced calcite precipitation (MICP), which produces minerals by bacterial metabolic activity. Since most of the studies on MICP thus far have focused on limited fields such as engineering, biotechnology, and geo-technology, this study has focused more on improving the application of biocement in design. We optimized MICP conditions using two parameters (i.e., concentration of urea-CaCl 2 and bacterial cell density) through water percolation testing, compressive strength testing, and X-ray diffraction (XRD) analysis. Then, based on the optimized conditions, material compatibility testing and scalability testing were performed, and design application research was conducted as well. As a result, biocement has been identified as a potential sustainable design material, based on its 40% compressive strength compared to conventional concrete, improved material finish, aesthetic aspects, and environmental impact. This paper contributes to the development of biocement applications in the environmental design field through multidisciplinary research ranging from biological experiments to design applications.

Keywords: design for sustainability; biocement; microbially-induced calcite precipitation (MICP); biodesign (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2018
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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