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Biology of Microbial Communities - Interview
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Microbial Community Profiling of Concrete.

Caroline Danner1, Julien Charest1, Carlijn Borghuis1

  • 1Institute of Chemical, Environmental and Bioscience Engineering, Technische Universität Wien, Gumpendorfer Strasse 1a, 1060 Wien, Austria.

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Summary
This summary is machine-generated.

Microbes living in concrete can help with recycling and self-healing. This research explores these concrete-associated microbiomes for sustainable construction solutions.

Keywords:
concreate healingconcreteconcrete recyclingmicrobial communities

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Area of Science:

  • Environmental Science
  • Microbiology
  • Civil Engineering

Background:

  • Concrete production and disposal present significant environmental challenges, including high carbon emissions and limited recyclability.
  • Microbial colonization is typically linked to concrete deterioration, but recent studies suggest potential benefits for recycling and self-healing.

Purpose of the Study:

  • To investigate the bacterial and fungal communities in urban concrete samples.
  • To identify microbial functions relevant to concrete recycling and self-healing.

Main Methods:

  • Utilized amplicon-based taxonomic profiling.
  • Targeted the 16S rRNA gene for bacterial identification and the internal transcribed spacer (ITS) region for fungal identification.

Main Results:

  • Discovered a diverse microbial community within concrete, capable of surviving harsh conditions.
  • Identified microbial taxa with metabolic functions for concrete degradation (acid/sulphate production) and biomineralization (crack repair, sealing).

Conclusions:

  • Concrete-associated microbiomes are a potential source of biological functions for sustainable construction.
  • These microbes can be harnessed for targeted biodegradation in concrete recycling and biogenic mineral formation for structural healing.
  • This study lays the groundwork for microbial solutions to reduce concrete's environmental impact.