Influence of the composition of treatment solution on the healing of cracked cement mortars using the MICP method
Artykuł w czasopiśmie
MNiSW
200
Lista 2024
| Status: | |
| Autorzy: | Fronczyk Joanna, Janek Martyna, Gieroba Barbara, Sroka-Bartnicka Anna, Franus Wojciech |
| Dyscypliny: | |
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| Rok wydania: | 2025 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Wolumen/Tom: | 297 |
| Strony: | 1 - 26 |
| Impact Factor: | 14,2 |
| Web of Science® Times Cited: | 3 |
| Scopus® Cytowania: | 3 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Finansowanie: | This research was funded by Polish Ministry of Education and Scienceas part of a subsidy for science FD-20/IL-4/016 (Lublin University of Technology—2024), and within statutory activity of Medical University of Lublin(DS 642 project). |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| Microbially Induced Carbonates Precipitation (MICP) is a promising technique for enhancing the self-healing properties of cementitious composites. Despite numerous studies on the subject, there is a limited focus on the comprehensive analysis of the various components in treatment solutions influencing precipitation in MICP. This study aimed to investigate Bacillus subtilis bacteria’s ability to precipitate carbonates via ureolytic and heterotrophic pathways in controlled conditions and within the cement mortar environment using different combinations of calcium and magnesium compounds. The assessment included crack-sealing capability, deter- mination of precipitate masses, and microstructure analysis (XRD, SEM, Raman spectroscopy). The results confirmed B. subtilis’ effective precipitation of various crystalline forms of calcium carbonates and magnesium carbonates under controlled conditions. However, in the presence of the cement matrix, only solutions with magnesium compounds exhibited sediment precipitation in mortar cracks, indicating limited bacterial activity in the cement composite environment. Microstructural analyses characterized all precipitate forms, supporting the conclusions drawn. |
