[SunkenCiv]

• Self-Healing Concrete: What Ancient Roman Concrete Can Teach Us [04/09/2023]
• MIT, Harvard, Italian, and Swiss scientists re-discover why Roman concrete structures last millennia while modern concrete doesn't [01/10/2023]
• How the Pantheon has stayed intact for almost 2,000 years: Study reveals how small chunks of lime gave Roman concrete 'self-healing' capabilities [01/06/2023]
• Why was Roman Concrete Forgotten during the Middle Ages? [11/14/2021]
• Sinkhole opens near the Pantheon, revealing 2,000-year-old Roman paving stones [05/13/2020]
• Science reveals improvements in Roman building techniques [10/30/2019]
• Paleomagnetism Study Supports Pyramid Man-Made Stone [02/19/2018]
• Secrets of the Roman Empire's ancient and 'luxurious' harbour of Corinth [12/15/2017]
• Finding a new formula for concrete [05/28/2016]
• Greek and Danish archaeologists excavate the ancient Greek harbour town Lechaion [12/28/2015]
• Back to future with Roman architectural concrete [12/19/2014]
• Ancient Greek Port Revealed Near Corinth, Peloponnese [11/06/2014]
• To improve today's concrete, do as the Romans did [06/05/2013]
• The Riddle of Ancient Roman Concrete [09/02/2011]
• Volcanic ash may have preserved Roman ruins (Good cement) [05/14/2009]
• Is the Roman Pantheon a colossal sundial? [02/05/2009]
• Researcher investigates ancient geology to understand human development, climate change [10/11/2008]
• Egypt's Pyramids Packed With Seashells (Not Concrete) [05/01/2008]
• Scientists Say Pyramids Could Be Concrete [04/23/2008]
• Ancient Rome's Earliest Temple Reconstructed [03/15/2008]
• 'Caesar's superglue' find [12/04/2007]
• Stones of the Pyramids were Poured, Not Chisled [05/21/2007]
• Cracking Concrete's Code [02/15/2007]
• Riddle Of The Great Pyramids Of Giza: Professor Finds Some Building Blocks Were Concrete [12/09/2006]
• Research team recreates ancient underwater concrete technology [04/09/2005]

[P.O.E.]

Modern concrete makers couldn’t fill the shoes of the old Italians.

Best I could do on short notice.

[systemjim]

I have wondered the same thing for years. The concrete used today seems to be SO deficient and has to be replaced every few years. Maybe that is the reason why? Planned obsolescence.

[KobraKai]

The Romans added a particular volcanic ash into the mix, an ash that only they were privy to.

[Bob434]

Another Interesting concept, why isn’t “iron that doesn’t rust” used today? There is an ir9n tower that is over 1000 years old that hasn’t rusted in India, and supposedly,somehow creates a protective layer when moisture hits it

For more on this, here is a video on it

https://m.youtube.com/watch?v=ZE4oQrn4nJg

[Red6]

How do you know when you’re a total nerd?

You watch video’s on Roman concrete, on a Saturday morning, because you find that interesting.

THX

[cymbeline]

“Why isn’t Roman Concrete used today? “

It is. Ref. Wikipedia article on Roman concrete,

[SaxxonWoods]

Planned obsolescence?

[Montana_Sam]

Thanks for the compendium of FR articles on early-history building research! Good stuff.

[dznutz]

[matthew fuller]

Fo future reference.

[boycott]

Rebuilding roads and bridges every 4-6 years is good for their business.

[Thud]

Roman concrete was used in San Mateo, California, in 1888 to build the Crystal Springs Dam. The dam survived both the 1906 San Francisco earthquake and the 1989 Loma Prieta earthquake, despite its location about 300 yards (270 m) east of the San Andreas Fault. It was subject to severe shaking in both earthquakes.

[Paal Gulli]

That was really eeeenteresting. I was thinking the ‘secret’ of Roman concrete had been lost.

[Redcitizen]

Why isn’t Roman concrete used today? Do you see any Romans around? 😁

Thanks for the interesting topic.