Re:Could we stop Yellowstone from erupting with a giant geot...
by magicalhippo on Tuesday April 25, 2023 @07:26PM
(#35708051)
Will be interesting to see how carbon-fiber reinforced concrete[1] fares in comparison.
[1]: https://www.compositesworld.com/news/tprc-research-studies-v...
Re:Could we stop Yellowstone from erupting with a giant geot...
by smegger001 on Tuesday April 25, 2023 @08:16PM
(#35708370)
stainless steel rebar and polymer coated rebar are also options for reinforcing concrete that have a lot of potential, as the issues is moister induced rusting of the rust rebar expanding and cracking the concrete there are multiple solutions that i don't know that we have data on the long term durability of yet. I wonder how one would go about artificially aging something embedded within a block of concrete to test for that.
Re:Could we stop Yellowstone from erupting with a giant geot...
by mikewarot on Tuesday April 25, 2023 @10:43PM
(#35709183)
It appears that coated rebar just offers a channel for the ingress of water, and thus corrosion, if there is a break anywhere in the coating, like a wick in a lamp.
Basalt fiber rebar might be a better way to go, as it won't oxidize. Studies will be needed to find out if it actually is better in the long run.
The biggest issue with modern concrete construction is the usage of reenforced concrete using iron or steel rebar which tends to corrode quickly. Reenforced concrete seems to have a half life of ~50 years.