Why Roman concrete lasted 2,000 years and why we don’t use it today
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Why Roman concrete lasted 2,000 years and why we don’t use it today
1 个月前
MSNtoldinstone
How seawater strengthens ancient Roman concrete - Unews
How seawater strengthens ancient Roman concrete - Unews
2017年2月24日
utah.edu
Roman engineers used their special underwater concrete to build harbors #army #study #knowledge #learn | Explore & Inspire
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Roman engineers used their special underwater concrete to build harb…
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FacebookExplore & Inspire
While modern concrete can crumble in decades, Roman concrete, or 'opus caementicium,' was engineered to strengthen with age, especially in marine environments. Researchers discovered that seawater reacting with the volcanic ash (pozzolana) and lime in the mix creates rare, interlocking mineral crystals called tobermorite. These crystals act like a reinforcing armor, continuously filling in cracks. This is why underwater harbor works like those at Caesarea, built between 22–15 BC, remain intact a
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While modern concrete can crumble in decades, Roman concrete, or 'o…
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FacebookForgotten History
Mystery of 2,000-year-old Roman concrete solved by scientists
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Mystery of 2,000-year-old Roman concrete solved by scientists
2017年7月4日
The IndependentHarriet Agerholm
We Lost the Recipe for Concrete That Lasts 2,000 Years 😱 Modern concrete often cracks and fails within decades, but Roman structures like the Pantheon stand strong after millennia. Their secret was mixing volcanic ash with quicklime and seawater. This created a chemical reaction that allows the concrete to "heal" its own cracks over time. Roman builders in the 2nd century BCE discovered that mixing volcanic ash (pozzolana) with lime made a mortar that could set underwater. Vitruvius wrote down
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We Lost the Recipe for Concrete That Lasts 2,000 Years 😱 Modern co…
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FacebookTerrifyingMyths
How seawater strengthens ancient Roman concrete
How seawater strengthens ancient Roman concrete
2017年7月3日
phys.orgUniversity of Utah
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