A systematic review on MICP technique for developing sustainability in concrete

Abstract

Concrete, a low-cost material, is the most common construction material used worldwide. However, due to its drawbacks (lack of workability and crack formation) as a constructional material, a new innovation method is on search to bring sustainability in concrete as a construction material. Microbially induced calcium carbonate precipitation seems to be the answer to bring sustainability in concrete. The MICP technique is being widely explored in the field of civil and environmental engineering over the last decade. Till now, various research articles have highlighted the conventional technique of biomineralization in improving the property of concrete. An effort was undertaken by us to cover innovative techniques in addressing the MICP technique in repairing and enhancing the property of concrete. An encapsulation method is becoming quite popular strategy in healing of cracks in concrete. We also elaborate a few different encapsulation techniques in this review article which can implemented in improving the properties of concrete and also in synthesis of bio-based agent which can be used to repair cracks in concrete.

Keywords:

• Bacteria
• MICP
• self-healing
• encapsulation method
• sustainable concrete

Acknowledgements

I thank the management of KLE Dr MS Sheshgiri College of Engineering and Technology for their kind support throughout this study.

Data availability statement

The authors confirm that the data supporting the findings of this study are available within the article.

Disclosure statement

No potential conflict of interest was reported by the authors.