Optimizing microbial grouting for vertical concrete crack sealing
Microbial grouting technology offers an effective solution for sealing vertical concrete cracks, particularly in underground structures prone to water leakage. This study investigates the optimization of microbial grouting processes by examining key parameters such as crack width, grouting port spac...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-06-01
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| Series: | Results in Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123025012095 |
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| Summary: | Microbial grouting technology offers an effective solution for sealing vertical concrete cracks, particularly in underground structures prone to water leakage. This study investigates the optimization of microbial grouting processes by examining key parameters such as crack width, grouting port spacing, pre-injection of fixed fluid, and the use of embedded media (e.g., standard sand and activated carbon). Through multiple grouting cycles, the deposition of calcium carbonate was observed to significantly reduce crack seepage and enhance compactness, as evidenced by ultrasonic wave velocity measurements. Results indicate that reducing crack width, pre-injecting fixed fluid, and embedding media with activated carbon can accelerate the sealing process and reduce the number of grouting cycles. This research provides valuable insights for improving the efficiency of microbial grouting in concrete crack repair. |
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| ISSN: | 2590-1230 |