New concrete tightens cracks with a special fungus

<pre>New concrete tightens cracks with a special fungus

As practice shows, cracks in concrete can be “healed”, while they are very tiny. That is why recently scientists in a number of countries are working on the creation of self-healing concrete.

A group of researchers from the University of Binghamton (New York) found an interesting solution. Scientists began to add to the concrete a mixture consisting of nutrients and spores of the fungus Trichoderma reesei.

After the concrete solidifies, the spores in it are in a state of rest, but only until the appearance of microcracks. Under the influence of water and oxygen, spores begin to germinate, and the precipitated calcium carbonate thus formed solidifies and seals the cracks.

Studies are still at an early stage, so it's too early to talk about the production of fungal concrete. Meanwhile, colleagues from the University of Newcastle and the University of Bath have already developed an analogue that uses bacteria that produce calcium carbonate.

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