3 ms·
Still concrete will still last longer than most other materials. The biggest issue with modern concrete construction is the usage of reenforced concrete using
by elcritch 4y ago
Still concrete will still last longer than most other materials.
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.
- magicalhippo 4y agoWill be interesting to see how carbon-fiber reinforced concrete[1] fares in comparison. [1]: https://www.compositesworld.com/news/tprc-research-studies-void-removal-mechanisms-in-vbo-processing https://www.compositesworld.com/news/tprc-research-studies-v...
- smegger001 4y agostainless 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.
- mikewarot 4y agoIt 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.