• Fulltext


        Click here to view fulltext PDF

      Permanent link:

    • Keywords


      Biomimicry; concrete; microbes; curing; calcium carbonate precipitation; strength.

    • Abstract


      The capability of calcite precipitation by microbes is a well-known natural phenomenon and is now successfully employed to improve properties of concrete. The calcite precipitation by microbes will be affected by the process in which bacteria is introduced into concrete. The present study highlights different ways ofmicrobial incorporation into concrete and its effect on the properties of resultant concrete. The bacteria were introduced into concrete either during casting or curing of concrete. The efficiency of the proposed microbial treatment was monitored in terms of strength development, water impermeability, pH of the pore solution, microstructure and level of CaCO3 precipitated. It was observed that both admixed treatment or spray treatment during curing were effective in calcite precipitation. The procedure involving spraying of bacterial culture onto concrete surface was efficient as well as economical.

    • Author Affiliations



      1. Department of Civil Engineering, Thapar Institute of Engineering and Technology, Patiala 147004, India
      2. Department of Biotechnology, Thapar Institute of Engineering and Technology, Patiala 147004, India
    • Dates

  • Sadhana | News

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2022-2023 Indian Academy of Sciences, Bengaluru.