r/science • u/mvea Professor | Medicine • Nov 03 '19
Chemistry Scientists replaced 40 percent of cement with rice husk cinder, limestone crushing waste, and silica sand, giving concrete a rubber-like quality, six to nine times more crack-resistant than regular concrete. It self-seals, replaces cement with plentiful waste products, and should be cheaper to use.
https://newatlas.com/materials/rubbery-crack-resistant-cement/
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u/[deleted] Nov 03 '19
I mean, the other drawback is that their concrete is absurdly more expensive. We can reproduce concrete like that to stay around for thousands of years, but we don’t because it’s expensive and we don’t need our buildings to stick around for that long.