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Previously: https://news.ycombinator.com/item?id=36958531 https://news.ycombinator.com/item?id=36958531 I was hoping this article would have info about the str
by andrewflnr 3y ago
Previously: https://news.ycombinator.com/item?id=36958531 https://news.ycombinator.com/item?id=36958531
I was hoping this article would have info about the structural strength at large scale, but it seems to be basically the same press-release-level info... Real pictures though, that's nice.
- shrubble 3y ago"The team also developed button-size capacitors with different ratios of cement to carbon black but found that while adding more carbon black (above 10 percent by volume) to the mixture increased its storage capacity, this came at the cost of the cement’s structural integrity. And for the use cases that Ulm and colleagues have in mind, the structural strength of the cement is essential." From this it seems that below a certain amount of carbon black being used, the structural strength is not affected.
- andrewflnr 3y agoAs we discussed in the thread I linked, that doesn't change the fact that the concrete is already in multiple pieces, due to the membranes, thus structurally compromised.
- dang 3y agoThanks! Macroexpanded: Low-cost additive turns concrete slabs into super-fast energy storage - https://news.ycombinator.com/item?id=36964735 https://news.ycombinator.com/item?id=36964735 - Aug 2023 (6 comments) Researchers have come up with a new way to store electricity in cement - https://news.ycombinator.com/item?id=36958531 https://news.ycombinator.com/item?id=36958531 - Aug 2023 (57 comments) MIT engineers create an energy-storing supercapacitor from ancient materials - https://news.ycombinator.com/item?id=36951089 https://news.ycombinator.com/item?id=36951089 - Aug 2023 (89 comments) Cement's future could be a combination of carbon capture and electrification - https://news.ycombinator.com/item?id=36339253 https://news.ycombinator.com/item?id=36339253 - June 2023 (90 comments)