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/kiHrt Nov 03 '19

How is the compressive strength compared to traditional concrete mix?

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u/lee-sinned Nov 03 '19

Doesn't it say it's 6-to-9 times more crack-resistant than regular concrete? Since it's concrete, this 6-to-9 times is more likely with reference to compressive stress tests

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u/Romantic_Carjacking Nov 03 '19

Crack resistance and compressive strength are not the same thing. Concrete also cracks under tension.