29 Aug '14, 8pm

Tired or dodging cracks and potholes? This concrete can heal itself.

Tired or dodging cracks and potholes? This concrete can heal itself.

could potentially extend the life of paving and structures by 50 percent and do away with the need for manual repairs. Researchers face several challenges in their efforts to find a suitable bacteria for their new material. Concrete is highly alkaline, making it a difficult place for bacteria to thrive. They are trying to find an organism that is not only able to flourish, but able to produce a large amount of spores. The team will also have to determine the pore size of the concrete so that it is small enough not to crush the forming bacteria as it densifies during the drying process. Micro-capsules will enclose and protect the bacteria while providing nutrients and calcium lactate, which will be converted by the bacteria once water is present.

Full article: http://inhabitat.com/scientists-developing-self-healing-c...

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