| Autor: |
V. Wiktor, H.M. Jonkers |
| Jazyk: |
angličtina |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
Case Studies in Construction Materials, Vol 2, Iss C, Pp 11-17 (2015) |
| Druh dokumentu: |
article |
| ISSN: |
2214-5095 |
| DOI: |
10.1016/j.cscm.2014.12.004 |
| Popis: |
This paper presents the field performance in a parking garage of the recently developed bacteria-based repair system for concrete. This liquid-based repair system aims at the sealing of cracks and decrease of the porosity due to the production of a calcium-based biomineral. The system combines advantages of both a traditional repair system for concrete (fast reacting and short term efficiency), and bio-based methods (more sustainable, slow process, and long-term efficiency). The bacteria-based repair system has been sprayed onto the surface of cracks and on concrete pavement. The crack-sealing efficiency and improvement of frost salt scaling were assessed by water permeability and freeze/thaw resistance tests respectively. The results were very promising as only cracks that had not been treated with the bacteria-based repair system were still heavily leaking. In addition, the freeze/thaw resistance of concrete that was treated with the bio-based repair system was higher than the untreated concrete. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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