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    The influence of adding B. subtilis bacteria on the mechanical and chemical properties of cement mortar by Osama Ahmed Ibrahim, Ahmed Ibrahim Hassanin Mohamed, Wael Ibrahim, Raghda Osama Abd-Al Ftah, Shimaa R. Hamed, Sherif Fakhry M. Abd-Elnaby

    Published 2025-01-01
    “…The addition of 5% bacteria significantly enhanced the early flexure strength, while the 10% showed superior long-term strength after 56 days. Scanning electron microscopy (SEM) revealed high CaCO3 deposits in the bacterial samples, indicating microbial-induced calcite precipitation that filled the small cracks and increased strength. …”
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