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Sustainability 2018, 10(11), 4079; https://doi.org/10.3390/su10114079

Biocement Fabrication and Design Application for a Sustainable Urban Area

1
,
1,2,* and 1,3,*
1
Interdisciplinary Program of EcoCreative, Ewha Womans University, Seoul 03760, Korea
2
Department of Industrial Design, Ewha Womans University, Seoul 03760, Korea
3
Department of Life Science, Ewha Womans University, Seoul 03760, Korea
*
Authors to whom correspondence should be addressed.
Received: 17 September 2018 / Revised: 28 October 2018 / Accepted: 2 November 2018 / Published: 7 November 2018
(This article belongs to the Special Issue Sustainable Materials and Manufacturing)
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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-CaCl2 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. View Full-Text
Keywords: design for sustainability; biocement; microbially-induced calcite precipitation (MICP); biodesign design for sustainability; biocement; microbially-induced calcite precipitation (MICP); biodesign
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Lee, C.; Lee, H.; Kim, O.B. Biocement Fabrication and Design Application for a Sustainable Urban Area. Sustainability 2018, 10, 4079.

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