The Effect of Different MICP Treatment Methods on Bio-Brick Properties
The Effect of Different MICP Treatment Methods on Bio-Brick Properties
This study aimed to enhance clay bio-bricks by comparing four different MICP treatments. The methods evaluated include the surface alternate infiltration bacterial suspension method, the surface first infiltration bacterial suspension method, the surface infiltration combined mixing method, and the pre-mixing method. The pre-mixing method (Method D) resulted in the highest compressive strength, reaching 1080.3 kPa, with the most uniform distribution of calcium carbonate. In contrast, the surface alternate infiltration method (Method A) had the poorest reinforcement effect, as the rapid formation of surface calcium carbonate hindered deeper penetration into the bio-brick, resulting in a compressive strength of only 410.8 kPa.
Xinyu Lu; Changming Bu; Lin Li; Shihui Liu; Beatrice Magombana
2025 International Conference on Bio-mediated and Bio-inspired Geotechnics (ICBBG2025)
General session: Bio-mediated methods for infrastructure construction
https://doi.org/10.53243/ICBBG2025-16
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