Comment on In a First, America Dropped 30,000-Pound Bunker-Busters—But Iran’s Concrete May Be Unbreakable, Scientists Say

rottingleaf@lemmy.world ⁨3⁩ ⁨days⁩ ago

• BeardedGingerWonder@feddit.uk ⁨3⁩ ⁨days⁩ ago

  I doubt it’s a recent thought, knowing civil engineers, they’re absolute perverts when it comes to concrete.

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  • Regrettable_incident@lemmy.world ⁨3⁩ ⁨days⁩ ago

    IIRC this type of thing isn’t new - there was research into the possibility of making ships out of ice mixed with sawdust in WWII.

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    • prettybunnys@sh.itjust.works ⁨2⁩ ⁨days⁩ ago

      It also wasn’t and isn’t that crazy of an idea.

      It’s strong AF, buoyant, and you can repair it at sea using the ocean around you.

      You just need a reliable way to keep it cool.

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    • OrteilGenou@lemmy.world ⁨3⁩ ⁨days⁩ ago

      How is the fleet holding up?

      We almost made it this time!

      Well, let’s wait for January and try again

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      • prettybunnys@sh.itjust.works ⁨2⁩ ⁨days⁩ ago

        Look up pykrete, it’s actually a really cool material

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      • Regrettable_incident@lemmy.world ⁨2⁩ ⁨days⁩ ago

        I think that was kinda the idea - war production meant steel was in great demand, and this seemed like a really cheap way to make ships. I wouldn’t want to try sailing one round the Caribbean, but they might have been okay in the north sea, for example. They didn’t work out though, can’t recall why but it’s not impossible that melting may have been a factor!

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  • MangoCats@feddit.it ⁨2⁩ ⁨days⁩ ago

    It has been around in some form since there has been manmade concrete.

    Personally, I bought a box of chopped fibers for inclusion in a concrete project some 30 years ago - sold labeled for that specific use.

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• Camzing@lemmy.world ⁨2⁩ ⁨days⁩ ago

  Its called FiberMesh Image

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• Geobloke@lemm.ee ⁨3⁩ ⁨days⁩ ago

  It’s been done in mining for decades

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  • rottingleaf@lemmy.world ⁨3⁩ ⁨days⁩ ago

    I asked because I’ve heard such advice for bloody countryside home floors. Not even something requiring it.

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    • chaogomu@lemmy.world ⁨3⁩ ⁨days⁩ ago

      Turns out that anti-cracking tech is widely applicable, if a bit expensive.

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• Treczoks@lemmy.world ⁨2⁩ ⁨days⁩ ago

  Fiberglass, carbon fibers, or small steel wires. They don’t need to be long, the snippets are only a few centimeters in the video I have seen.

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