Experimental Investigation of the Self-Healing Potential of Bacteria for Sustainable Concrete Structures Phase 2 [Research Brief]
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2024-07-01
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Corporate Contributors:State of California SB1 2017/2018, Trustees of the California State University Sponsored Programs Administration ; United States. Department of Transportation. University Transportation Centers (UTC) Program ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology
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Edition:Research Brief
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Abstract:The scope of this research work is that of testing the self-healing potential of bacteria for sustainable concrete structures through the application of microbially induced carbonate precipitation (MICP) method. Three pure cultures are considered for this study, Bacillus subtilis (B-14596), Bacillus megaterium (B-350), and Sporosarcina pasteurii (ATCC Catalog no: 11859), which are laboratory cultivated. The experimental design included five distinct specimen groups: Control without Crack (Set-A); Control with Crack (Set-B); and three Cracked Specimen sets treated with different bacterial species (namely, Bacillus subtilis (Set-C), Bacillus megaterium (Set-D), and Sporosarcina pasteurii (Set-F)). Each group comprised 11 samples featuring a concrete grade of 40 MPa, aimed at securing statistical reliability.
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