Research area
Materials & Engineering
Materials, manufacturing, sensing and engineered systems, including infrastructure technologies.
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Evidence date ·Choosing and feeding one bacterium for possible concrete microcrack repair
Peer-Reviewed PaperTracked over timeResearchers screened soil bacteria and tested nutrients that changed spore germination, urea breakdown and mineral production. The lab result is not yet crack repair.
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Evidence date ·How concrete can store and release a mineral-making repair system
Review or Meta-AnalysisTracked over timeA November 2025 review explains how microbes, enzymes and capsules fill concrete cracks, and why crack sealing does not prove structural recovery.
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Evidence date ·When a sealed concrete crack meets a new load
Peer-Reviewed PaperTracked over timeLaboratory tests of bacterial concrete compare crack closure, mixture strength, beam bending and renewed loading, revealing where repair remains uncertain.
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Evidence date ·Following recovered bacteria through self-healing concrete
PreprintTracked over timeA 2025 preprint reports crack healing after transferring recovered bacteria into fresh concrete, strengthening the link without proving structural recovery.
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Evidence date ·What bacterial concrete reveals about water uptake and recovery after cracking
Peer-Reviewed PaperTracked over timeLab concrete specimens absorbed less water and regained strength after cracking, but mixed species labels and chloride units limit comparisons.
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Evidence date ·From dormant bacterial spores to mineral bridges in cracked concrete
Peer-Reviewed PaperTracked over timeLaboratory tests trace how Bacillus pasteurii spores germinate, leave mineral bridges and alter mortar flow, while long-term repair remains untested.
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Evidence date ·The protective shell around concrete’s repair bacteria faces fire
Peer-Reviewed PaperTracked over timeA thermal model compares carbon-fiber and gelatin carriers, predicted survival hours, one-hour furnace tests, bacterial recovery and remaining strength.
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Evidence date ·Combining bacteria changed mortar strength, but more was not always better
Peer-Reviewed PaperTracked over timeResearchers mixed two bacteria into laboratory mortar and measured stronger, less absorbent cubes. The gains still do not demonstrate crack repair.
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Evidence date ·Can bacterial concrete regain strength while facing chemical damage?
PreprintTracked over timeA June 2025 preprint tests bacterial concrete in freshwater and sulfate solutions, separating strength gains, crack recovery, and chemical durability.
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Evidence date ·How bacteria embedded in concrete are proposed to seal cracks
PreprintTracked over timeBacterial spores and nutrients are built into a proposed concrete mix, with water and oxygen enabling mineral formation to fill cracks. The design remains conceptual.