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How to make roman concrete

submitted by PostWallHelena to DIY 1.6 yearsSep 30, 2022 17:29:59 ago (+23/-0)     (www.bitchute.com)

https://www.bitchute.com/video/X1uNtj2Nng4Q/

Because what else do you have to do?

Besides at some point you might not even be able to buy cement


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[ - ] DukeofRaul 5 points 1.6 yearsSep 30, 2022 19:48:14 ago (+5/-0)

If I remember correctly they used coral which made it stronger than modern concrete and the recipe was forgotten like greek fire for centuries

[ - ] Crackinjokes 2 points 1.6 yearsSep 30, 2022 19:49:23 ago (+2/-0)

I think they also included salt in the mix so it reacted differently with salt water and was stronger.

[ - ] DukeofRaul 2 points 1.6 yearsSep 30, 2022 20:32:54 ago (+2/-0)

The muslims had a weaker version too or something like that

[ - ] PostWallHelena [op] 1 point 1.6 yearsSep 30, 2022 22:22:21 ago (+1/-0)

After a brief survey of the topic, it seems the ash from certain areas (such as Mt Vesuvius) had high amounts of aluminum which helped to form this crystalization when it made contact with sea water. @dukeofraul

[ - ] DukeofRaul 1 point 1.6 yearsSep 30, 2022 22:31:40 ago (+1/-0)

Which city made better concrete, Herculaneum or Pompeii you think?

[ - ] PostWallHelena [op] 1 point 1.6 yearsOct 1, 2022 00:00:24 ago (+1/-0)

Well apparently the harbor at Baiae which is on the northwest part of the gulf of naples is where they have some good marine cement structures. You can knock yourself out with this

https://www.researchgate.net/profile/Qinfei-Li/publication/318117204_Phillipsite_and_Al-tobermorite_mineral_cements_produced_through_low-temperature_water-rock_reactions_in_Roman_marine_concrete/links/5a0564d10f7e9bc40793f80f/Phillipsite-and-Al-tobermorite-mineral-cements-produced-through-low-temperature-water-rock-reactions-in-Roman-marine-concrete.pdf

...which is kind of boring but has a neat little table at the end where it lists quotes from Pliny and Seneca on how to make the stuff

[ - ] observation1 0 points 1.6 yearsOct 1, 2022 14:01:22 ago (+0/-0)

Shows how to create calcium oxide aka quick lime (calcium hydroxide after adding water) from limestone or seashells but no time explaining how to get volcani cash, we can presume because nobody is going to hike a volcano(?)

Insomuch, if I'm going to home depot to grab a bag of volcano ash - guess what else I'm going to buy at the same time? Quick lime

[ - ] deleted 0 points 1.6 yearsOct 1, 2022 06:10:51 ago (+0/-0)

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