🍹Early to RISA 🧉@sh.itjust.worksM to Greentext@sh.itjust.works · 2 days agoAnon is unimpressedsh.itjust.worksimagemessage-square52fedilinkarrow-up1399
arrow-up1399imageAnon is unimpressedsh.itjust.works🍹Early to RISA 🧉@sh.itjust.worksM to Greentext@sh.itjust.works · 2 days agomessage-square52fedilink
minus-squarecurrycourier@lemmy.worldlinkfedilinkarrow-up5·2 days ago*Concrete with rebar. Roman concrete has lasted plenty long. Though the lime in it helps.
minus-squareteyrnon@sh.itjust.workslinkfedilinkarrow-up2·2 days agoThat 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?
*Concrete with rebar. Roman concrete has lasted plenty long. Though the lime in it helps.
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?