Self healing paint for cars did astonish then, not really now after this attempt from University of Michigan, to develop bendable concrete that heals itself when it cracks. The self-healing concrete is made to bend and crack in narrow hairlines, which only by means of water and carbon dioxide can transform itself to the initial actuality.
In contrast to the usual
The usually used concrete splits into wide gaps on excessive pressure and shifting from alignment, but this new substance does not fragment into pieces, but very similar to the car-panes, ruptures into narrow fragment and then on healing itself behaves again like new. The specimens of the engineered cement composite have been severely tested and stretched to over 3% of its normal, but the results have been affirmative, with minimal variances here and there.
There are limitations of the concrete that fully heals when cracks are only 150 micrometers, and preferably below 50, the researcher are working to take the even further. For now we can take positives from the fact that the concrete is rigid enough to live out catastrophic situations to an extent and can be good alternative to be used in construction in earthquake and calamity prone areas.
Via: Physorg
