r/science 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/E_J_H Nov 03 '19 edited Nov 03 '19

I think there’s enough people who don’t know you have to rotate your tires to where they don’t need to worry about the road conditions.

Our tax dollars are supposed to be used for upkeeping the roads, which doesn’t happen near me and I would be furious if someone was lobbying to keep that from happening.

Edit: found one.

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u/[deleted] Nov 03 '19 edited Nov 01 '20

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u/default_T Nov 03 '19

I always thought the wear was mostly because when you turn you're unevenly apply forces on the tires in the front causing them to over a long period shave down. Hence why the fronts switch sides and back and the rears roll forward. I can't speak much to what the tire shops want I mostly down my own expect when I need to replace the tires.

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u/E_J_H Nov 03 '19

This is exactly right. The other guy is talking out of his ass.

It’s not some scheme to get you to pay an extra 30$.... bey this dude doesn’t buy into Big Oils lie about changing your oil every X miles.