editedbook
Publication: IIP Proceedings Year: 2022, Month: November Page No: 214-228, ISSN/ISBN: 978-93-95632-98-0, DOI/Link: https://www.rsquarel.org/assets/docupload/rsl20235C2048A165AB194.pdf
BIO-MEDIATED SOIL STABILIZATION TECHNIQUES (BIO-POLYMERS AND MICP)
Area/Stream: Construction Materials & Civil Engineering , Authors: Anoop K. N, Parthiban Kathirvel, Aparna G. S, Vinod Kumar. N Keywords: Biomineralization, Urease, Carbonic anhydrase, Urea hydrolysis, Soil stabilization, Durability, Shear strength Book Name /series: Futuristic Trends in Construction Materials & Civil Engineering, Volume 2, Book 11, Part 3, Chapter 3Publication: IIP Proceedings Year: 2022, Month: November Page No: 214-228, ISSN/ISBN: 978-93-95632-98-0, DOI/Link: https://www.rsquarel.org/assets/docupload/rsl20235C2048A165AB194.pdf
Abstract:
Soil stabilization through biologically and eco-friendly ways are not so long-standing attempts because of the extensive research done in the geotechnical engineering field. Among them, are the use of environmentally friendly materials like biopolymers, and other methods namely, microbial-induced calcite precipitation (MICP). Biomineralization mediated by MICP is a phenomenon whereby certain microorganisms produce enzymes that can precipitate calcium carbonate crystals. Most importantly, carbonic anhydrase and urease producers are widely used for MICP in various fields. The mineralization properties of these enzymes are drastically exploited for various purposes including the formulation of self-healing bio-concretes, retention of monuments, sealing of cracks in roads and buildings, etc. Biomineralization through MICP processes can in a way contribute to the carbon sequestration through the active formation of calcites when these enzymes react with atmospheric carbon dioxide. The increased rise of environmental issues upon the use of chemical stabilizing agents made people think of a more sustainable solution through the application of biopolymers, such as guar gum, xanthan gum, alginate, beta 1,3/1,6 glucan and chitosan. In conclusion, both the mentioned alternatives are considered ecofriendly and are helpful in reducing carbon dioxide emissions.
Cite this: Anoop K. N, Parthiban Kathirvel, Aparna G. S, Vinod Kumar. N,"BIO-MEDIATED SOIL STABILIZATION TECHNIQUES (BIO-POLYMERS AND MICP)", Futuristic Trends in Construction Materials & Civil Engineering, Volume 2, Book 11, Part 3, Chapter 3, November, 2022, 214-228, 978-93-95632-98-0, https://www.rsquarel.org/assets/docupload/rsl20235C2048A165AB194.pdf
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