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Anon is unimpressed (sh.itjust.works)
submitted 5 months ago by to c/greentext@sh.itjust.works
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[–] 52 points 5 months ago (8 children)

Almost nothing built today will last as long as the pyramids already have.

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  • [–] 7 points 5 months ago* (5 children)

    Plenty of things build today will last much longer:

    Every nuclear waste disposal site (hopefully)

    Seed vaults

    Nuclear bunkers

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  • [–] 5 points 5 months ago (2 children)

    Concrete doesn't last, stone does. Brick to a lesser extent.

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  • [–] 7 points 5 months ago (1 child)

    *Concrete with rebar. Roman concrete has lasted plenty long. Though the lime in it helps.

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  • [–] 2 points 5 months ago

    That is true. Roman Concrete is still standing 2k years on. Ours lasts decades, maybe a century if well done.

    They used ash from Mount Aetna in Sicily to make some of it. I forget the thing with the lime, how that was different than what we use?

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