Dutch scientist created bacteria that repair cracked buildings by turning cracks into stone, making concrete heal itself and saving billions in repair costs |
Dutch microbiologist Professor Henk Jonkers holds a sample of self-healing concrete, an innovation that uses bacteria to repair cracks automatically. Concrete is the backbone of modern civilisation, supporting everything from homes and skyscrapers to bridges, tunnels and dams. Yet even this remarkably strong material has a costly weakness. Tiny cracks inevitably develop over time because…