Bacteria-Powered ‘Self Healing’ Concrete Makes Buildings Like New

Bacteria-Powered ‘Self Healing’ Concrete Makes Buildings Like New
Design

The bacteria seals cracks and keeps out water and other damaging substances to prolong the life of the concrete.

Emma Hutchings
  • 2 may 2012

Bacteria is being used to develop ‘self-healing’ concrete that would fill cracks in concrete buildings, allowing them to look after themselves. Researchers at Northumbria University led by Dr. Alan Richardson, a Senior Lecturer in Construction in the School of the Built and Natural Environment, are using a ground-borne bacteria called bacilli megaterium. This is grown on a nutrient broth of yeast, minerals and urea to create calcite, a crystalline form of natural calcium carbonate.

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