How seawater strengthens Roman concrete

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When the ancient Romans made mortar, they heated up the lime to turn it into a substance called "quicklime" – a very reactive chemical sibling to limestone. And, because they introduced water to the quicklime during mixing, the heat it produced set up a chemical foundation that could strengthen the concrete later.

When tiny cracks start to form later, the quicklime stops them from becoming bigger. When it rains, the lime reacts with the water to recrystallize as various forms of calcium carbonate, quickly filling the crack or reacting with the volcanic ash to "heal" the material.

matej
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Well, Roman concrete didn't have metal poles in it that rusted and expanded to break apart the structures.

fjdkfdfjdf
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I once saw a doco on how the ancient Italian grape growers used nets on the cliff tops to collect sea mist for irrigation. If any one can tell me where this info is buried, would very much appreciate it. Thanks.

kenbellchambers
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How do recent findings affect this theory

mirothedjmusic
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Want to become a billionaire? Study science & history.... and figure out how to re-create Roman cement & or other technologies lost to the ages, that we have not been able to recreate yet or rediscover .... figure it out and you'll not only help society as a whole, but you'll be set for life.

ericmcquisten
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