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A comment on Six Years After Fukushima, Robots Finally Find Reactors’ Melted Uranium Fuel. Parent comment

Re:Six Years After Fukushima, Robots Finally Find Reactors’ ... by philipkglass on Sunday November 19, 2017 @02:51PM (#15735568)
That's part of some newer reactor designs: https://en.wikipedia.org/wiki/Core_catcher
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Re:Six Years After Fukushima, Robots Finally Find Reactors’ ... by petre on Monday November 20, 2017 @01:01AM (#15738105)
Expensive. The concrete can also crack in the event of an earthquake.
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Re:Six Years After Fukushima, Robots Finally Find Reactors’ ... by Cthulhu_ on Monday November 20, 2017 @09:13AM (#15739944)
Not as expensive as having to clean up three reactors worth of nuclear meltdown and a few exploded reactors.

I'm sure they can prevent the concrete from cracking in an earthquake.

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Re:Six Years After Fukushima, Robots Finally Find Reactors’ ... by petre on Monday November 20, 2017 @01:08PM (#15741825)
Cheaper solutions exist, such as the one with borosilicate sand on the bottom of the reactor. Building passive cooling pools with those resources is orders of magnitude more useful because it prevents a meltdown rather than attempting to catch the molten core. The ESBWR uses such a passive cooling design.

https://en.m.wikipedia.org/wiki/Economic_Simplified_Boiling_...

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