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Bio-Cementation in Construction Materials: A Review
Dawood Muhammad Iqbal1, Leong Sing Wong1, Sih Ying Kong2
1College of Graduate Studies, Universiti Tenaga Nasional, Kajang 43000, Malaysia.
Materials (Basel, Switzerland)
|April 30, 2021
Summary
Bio-cementation offers a sustainable alternative to traditional construction materials, reducing environmental impact. This review explores microbiologically induced calcium carbonate precipitation (MICP) as a green solution for construction engineering.
Area of Science:
- Construction Engineering
- Environmental Science
- Microbiology
Background:
- The construction industry's reliance on raw materials leads to resource depletion and high energy consumption.
- Traditional cement and brick production generate significant carbon emissions, contributing to global warming.
- Bio-cementation presents an environmentally friendly approach to construction, mitigating climate change impacts.
Purpose of the Study:
- To review the recent trends in microbiologically induced calcium carbonate precipitation (MICP) within construction engineering.
- To provide a comprehensive understanding of microbial utilization for bio-cementation.
- To highlight MICP as a sustainable alternative in construction.
Main Methods:
- Review of existing literature on bio-cementation and MICP.
- Analysis of the microbial mechanisms involved in calcium carbonate precipitation.
- Examination of MICP applications in construction materials and crack repair.
Main Results:
- Microbiologically induced calcium carbonate precipitation (MICP) is driven by microbial urease activity, producing carbonate ions.
- These ions react with calcium ions to form calcium carbonate, acting as a binder.
- MICP has shown promise in crack repair and surface treatment of construction materials.
Conclusions:
- MICP is a burgeoning trend in construction engineering for sustainable binder production.
- Microbial bio-cementation offers a viable, eco-friendly solution for the construction sector.
- Further research into MICP can advance green building technologies and reduce carbon footprints.
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