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Bacteria-laden concrete helps cracks fix themselves

Henk Jonkers, microbiologist at the Delft University of Technology. (Delft University of Technology) Capsules of limestone-producing bacteria are embedded in the concrete. (Delft University of Technology)

Capsules of limestone-producing bacteria are embedded in the concrete. (Delft University of Technology)

Capsules of limestone-producing bacteria are embedded in the concrete. (Delft University of Technology)