Exploring the Possibility of Using Bioreceptive Concrete in Building Façades

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Abstract

A bioreceptive material allows for biological content (biofilms) to grow on it, without necessarily affecting the material itself. If a bioreceptive concrete could therefore be integrated into a building façade, it could lead to green façades that do not need additional technical systems. As part of previous research by the authors, a promising bioreceptive concrete mixture was formulated. The aim of this research is to develop this concept by using the previously developed mixture to create a bioreceptive concrete façade panel prototype, made using commonly available materials, that can direct where the biological growth takes place. The latter is done by combining the bioreceptive concrete with a non-bioreceptive (UHPC-based) concrete in the same panel, through a two-stage pouring process. A biofilm was developed on this prototype panel and results show that full coverage of the bioreceptive parts of the panel can be achieved within two weeks under optimal growing conditions and biological growth can be directed. However, exterior survivability is an issue for now. The concept of bioreceptive façades therefore shows promise, yet further investigation into improving exterior survivability is necessary, while further research into the underlying ecology, material, economics, and climate effects is also necessary.
Original languageEnglish
Pages (from-to)73-86
Number of pages14
JournalJournal of Facade Design and Engineering
Volume9
Issue number1
DOIs
Publication statusPublished - 2021
Event9th PowerSKIN Conference: simplicity vs. performance? - Munich, Germany
Duration: 9 Apr 20219 Apr 2021
http://www.powerskin.org

Keywords

  • Bioreceptivity
  • biofilm
  • concrete façade panel

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