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/uptokesforall Nov 03 '19

Remove all the river sand, then spend a ton of money adding desert sand and marking that beach as inviable for cement production.

Question is, who would be willing to send the money to transport all that desert sand?

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u/TurboTitan92 Nov 04 '19

Nobody, and it would cost a fortune in equipment and gas. And the emissions alone from all that equipment would be awful for the environment

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u/uptokesforall Nov 04 '19 edited Nov 04 '19

So we'll just have to let our geography transform as we operate existing projects.

I like the idea of restricting mining operations.