A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Application of microbially induced calcium carbonate precipitation (MICP) technique in concrete crack repair: A review
Abstract Concrete cracking is regarded as one of the foremost factors posing a long-term safety threat to the durability of structures. Recently, microbially induced calcium carbonate precipitation (MICP) has been gradually applied in the field of concrete crack repair, which aims to achieve the repair of concrete cracks using biomineralization. In this paper, we review the research status of MICP technology in the field of concrete crack repair from both experimental and numerical simulation perspectives. First, we introduce the mechanism of microbial mineralization and compare the advantages and disadvantages of different MICP types. The engineering applications of MICP in the field of concrete crack repair are described in terms of the self-healing of microbial concrete and the repair of existing concrete cracks by MICP, respectively. We conclude by highlighting the lack of existing studies, as well as the technical challenges faced by the MICP technique in the repair of concrete cracks in complex engineering conditions.
Highlights Various mechanisms of MICP are demonstrated in detail. Techniques of concrete crack repair using fungal and bacterial MICP are introduced. Pros and cons of using different microorganisms and additional technologies were discussed. Effects of concrete crack repairment using different types of MICP were evaluated. Significance of keeping long-term activity of microorganisms in concrete was emphasized.
Application of microbially induced calcium carbonate precipitation (MICP) technique in concrete crack repair: A review
Abstract Concrete cracking is regarded as one of the foremost factors posing a long-term safety threat to the durability of structures. Recently, microbially induced calcium carbonate precipitation (MICP) has been gradually applied in the field of concrete crack repair, which aims to achieve the repair of concrete cracks using biomineralization. In this paper, we review the research status of MICP technology in the field of concrete crack repair from both experimental and numerical simulation perspectives. First, we introduce the mechanism of microbial mineralization and compare the advantages and disadvantages of different MICP types. The engineering applications of MICP in the field of concrete crack repair are described in terms of the self-healing of microbial concrete and the repair of existing concrete cracks by MICP, respectively. We conclude by highlighting the lack of existing studies, as well as the technical challenges faced by the MICP technique in the repair of concrete cracks in complex engineering conditions.
Highlights Various mechanisms of MICP are demonstrated in detail. Techniques of concrete crack repair using fungal and bacterial MICP are introduced. Pros and cons of using different microorganisms and additional technologies were discussed. Effects of concrete crack repairment using different types of MICP were evaluated. Significance of keeping long-term activity of microorganisms in concrete was emphasized.
Application of microbially induced calcium carbonate precipitation (MICP) technique in concrete crack repair: A review
Zhang, Y.S. (author) / Liu, Y. (author) / Sun, X.D. (author) / Zeng, W. (author) / Xing, H.P. (author) / Lin, J.Z. (author) / Kang, S.B. (author) / Yu, L. (author)
2023-11-22
Article (Journal)
Electronic Resource
English
| Taylor & Francis Verlag | 2021