Cracks Repairing and Resistance to Water Penetration Properties of Microbial Self-Healing Cement.

ABSTRACT: This study focuses on applying microbial self-healing cement in repairing cracks in cement-based materials and enhancing its resistance to water penetration performance. Traditional cement is susceptible to environmental influences, leading to the formation of microcracks and a reduction in durability. This research used Bacillus pseudofirmus to prepare microcapsules through sodium alginate gelation technology. We mixed microcapsules into the cement. The results indicate that the microbial self-healing cement, with a 1% self-healing agent added, increased its resistance to water penetration ability by 29.2% after 28 days. This improvement rose to 39.3% after 84 days. Additionally, we used the embedded needle method to make mortar blocks through microcracks, mimicking the cracks foun

SUBMITTER: Liu L 

PROVIDER: S-EPMC11870827 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature