Editorial team
ioQuanta Research Desk
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Evidence date ·Bacteria may close concrete cracks, but strength still matters
PreprintTracked over timeControlled tests found crack closure within 21 days and stronger manufactured-sand mixes, but the findings do not yet show durable structural repair.
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Evidence date ·When the material sheltering bacteria shapes concrete repair
Review or Meta-AnalysisTracked over timeA review explains how bacteria seal concrete cracks with calcium carbonate and why protective carriers, permeability and steel corrosion matter.
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Evidence date ·When water helps bacterial concrete repair and when it acts too soon
Peer-Reviewed PaperTracked over timeFreeze-thaw tests tracked recoverable bacteria, while water curing cut counts and simulated rain produced only 13.6–16.8% crack closure.
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Evidence date ·How the material carrying repair bacteria changes concrete under load
Peer-Reviewed PaperTracked over timeA laboratory comparison tests three carriers for bacterial concrete, revealing different results under compression, bending and environmental exposure.
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Evidence date ·How bacteria and mix ingredients shape concrete predictions
Peer-Reviewed PaperTracked over timeA 2024 study models concrete strength and workability from bacteria and mix ingredients, then compares prediction scores without proving actual crack repair.
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Evidence date ·How bacterial repair changed damaged concrete’s grip on steel
Peer-Reviewed PaperTracked over timeA lab study treated damaged lightweight concrete in three ways, then retested its grip on steel. The 17.9% gain and weaker compression recovery need context.
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Evidence date ·What bacterial capsules achieved inside cracked mortar
Peer-Reviewed PaperTracked over timeA laboratory study compared three bacterial species in capsule-filled mortar, showing narrow cracks can fill in water while durable repair remains untested.
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Evidence date ·A bacterium and thickener were tested together to repair concrete cracks
Peer-Reviewed PaperTracked over timeA 2023 study paired soil-derived Bacillus cereus with four thickeners, reporting over 90% crack repair and a 30-second initial water-penetration time.
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Evidence date ·Predicting crack-area repair in concrete with bacteria and fibers
PreprintTracked over timeA July 2023 study compares models for predicting crack-area repair in concrete with bacteria and fibers. What do its strong fit scores actually tell us?
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Evidence date ·How bacteria-associated minerals connect repair mortar with cracked travertine
Peer-Reviewed PaperTracked over timeA 2023 study placed bacteria-based mortar in artificially aged travertine, a building stone, then used imaging and nanoindentation to assess mineral growth and contact.