This research is the first application of fungi for self-healing concrete, a low-cost, pollution-free and sustainable approach.
Jin’s studies have looked specifically at concrete and found that the problem stems from the smallest of cracks in the concrete.
When this fungus is mixed with concrete, it originally lies dormant — until the first crack appears.
With enough water and oxygen, the dormant fungal spores will germinate, grow and precipitate calcium carbonate to heal the cracks,” explained Jin.
“When the cracks are completely filled and ultimately no more water or oxygen can enter inside, the fungi will again form spores.
However, Jin is hopeful that with further adjustments the Trichoderma reesei will be able to effectively fill the cracks.
In my opinion, further investigation in alternative microorganisms such as fungi and yeasts for the application of self-healing concrete becomes of great potential importance,” said Jin. »