Farfán Córdova, M.G.; Díaz Ortega, J.L. Bacterial Self-Healing of Concrete: A Scoping Review. Preprints2023, 2023100288. https://doi.org/10.20944/preprints202310.0288.v1
APA Style
Farfán Córdova, M.G., & Díaz Ortega, J.L. (2023). Bacterial Self-Healing of Concrete: A Scoping Review. Preprints. https://doi.org/10.20944/preprints202310.0288.v1
Chicago/Turabian Style
Farfán Córdova, M.G. and Jorge Luis Díaz Ortega. 2023 "Bacterial Self-Healing of Concrete: A Scoping Review" Preprints. https://doi.org/10.20944/preprints202310.0288.v1
Abstract
This article is a scoping review analyzing advances in experimental studies on bacterial self-healing of concrete. From Scopus, ScienceDirect, Web of Science and Google Scholar search engine databases, 54 studies were selected for analysis, and an increasing trend of publications since 2015 was found, with India as the country with the largest research presence. Different ma-terials are used as replacement or admixture in concrete, such as fibers, particles and recycled material from construction waste. It was found that the most commonly used bacteria are Bacillus subtilis and Bacillus sphaericus, which can improve the strength of concrete by generating calcite and sealing cracks. In addition, it was found that the presence of materials such as fibers, ashes and construction recyclates can protect bacteria in an alkaline environment. The designs usually in-clude more than two experimental groups and a control. In summary, this study highlights the importance of bacterial self-healing in concrete and provides information on advances in this field of research.
Keywords
self-healing; Bacillus; concrete; materials
Subject
Engineering, Civil Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
