Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Pompeii's ruins challenge Rome's famous concrete recipe
Popular Science ^ | December 9, 2025 | Andrew Paul

Posted on 02/13/2026 6:28:16 AM PST by SunkenCiv

For once, new research on the ruins of the Roman city of Pompeii is not focusing on the destructive aftermath of the infamous Mount Vesuvius eruption in 79 CE. Instead, it centers on the creative acts preceding it. After taking a closer look at the city's construction projects, a team from MIT believes that ancient Rome's legendary concrete recipe might need a major historical revision.

When ancient Roman architecture comes to mind, the columns and coliseums are generally the first things that pop into your head. These structures were often built using Roman concrete -- and that material traces back to a single man named Vitruvius. The 1st century BCE engineer is widely credited for authoring De Archtectura, the only architectural treatise to survive from antiquity, and his recipe for concrete helped construct some of the empire's most iconic buildings.

In 2023, MIT engineer Admir Masic and colleagues published the results of their research into surviving Roman concrete. They confirmed that the composite was manufactured by first mixing lime fragments with volcanic ash and other dry materials. Adding water to this blend then produced heat at a chemical level in a process known as "hot-mixing." As the concrete set, it preserves bits of the reactive lime as tiny, gravel-like stones. When the concrete inevitably cracked over time, the lime then redissolves and fills in the fissures -- granting the material its famous self-healing properties.

(Excerpt) Read more at popsci.com ...


TOPICS: History; Science; Travel
KEYWORDS: concrete; godsgravesglyphs; pompeii; romanempire; rome

Click here: to donate by Credit Card

Or here: to donate by PayPal

Or by mail to: Free Republic, LLC - PO Box 9771 - Fresno, CA 93794

Thank you very much and God bless you.


Navigation: use the links below to view more comments.
first 1-2021-31 next last
An ancient Pompeii wall at a newly excavated site, where Associate Professor Admir Masic applied compositional analysis (overlayed to right) to understand how ancient Romans made concrete that has endured for thousands of years.
Credit: Archaeological Park of Pompeii
Credit: Archaeological Park of Pompeii

1 posted on 02/13/2026 6:28:16 AM PST by SunkenCiv
[ Post Reply | Private Reply | View Replies]

To: StayAt HomeMother; Ernest_at_the_Beach; 1ofmanyfree; 21twelve; 24Karet; 2ndDivisionVet; 31R1O; ...
More likely the local yokel did it wrong, or just lacked one or more of the usual components.

2 posted on 02/13/2026 6:30:33 AM PST by SunkenCiv (TDS -- it's not just for DNC shills anymore -- oh, wait, yeah it is.)
[ Post Reply | Private Reply | View Replies]

To: SunkenCiv
in 79 CE. IOW, 79 AD..

The 1st century BCE IOW, The 1st century BC..

Who else is tired of revisionist history?

3 posted on 02/13/2026 6:41:53 AM PST by Thommas (The snout of the camel is already under the tent.)
[ Post Reply | Private Reply | To 2 | View Replies]

To: SunkenCiv

If this mixture proves to be superior, it will be relegated to a warehouse next to the Arc of the Covenant..the unions want no part of concrete that doesn’t require repair every few years.


4 posted on 02/13/2026 6:46:42 AM PST by Thommas (The snout of the camel is already under the tent.)
[ Post Reply | Private Reply | To 2 | View Replies]

To: Thommas

“ Who else is tired of revisionist history?”

I am.
CE, BCE (current era, before current era) makes no sense. What event distinguishes the two? Hmmm….


5 posted on 02/13/2026 6:57:45 AM PST by bk1000 (Banned from Breitbart)
[ Post Reply | Private Reply | To 3 | View Replies]

To: Thommas

Everybody is... AD, BC... Any other letters are a bastardization of reality.


6 posted on 02/13/2026 7:06:40 AM PST by jerod (Nazis were essentially Socialist in Hugo Boss uniforms... Get over it!)
[ Post Reply | Private Reply | To 3 | View Replies]

To: jerod

You need to believe Jesus is the son of God to be a Christian, believing his life was a historical event worthy of measuring history is politically and religiously neutral.


7 posted on 02/13/2026 7:29:17 AM PST by WhoisAlanGreenspan? (GO Lions)
[ Post Reply | Private Reply | To 6 | View Replies]

To: jerod

If English-speaking Christians can keep using “Thursday” (Thor’s Day), then non-Christians using the Gregorian calendar can use “B.C.” and “A.D.” without violating their consciences. Otherwise, they can try to get on with the Islamic calendar (1447 AH), Hebrew Calendar (AM 5786), Buddhist calendar (2569–2569 or 2564–2565 depending on location), Chinese calendar (4719, 4720, 2724, 4725, depending on . . . stuff), Ethiopian calendar (2018), Hindu Calendar (2083 VS), Aldous Huxley calendar (AF 118).


8 posted on 02/13/2026 7:32:27 AM PST by Dr. Sivana ("Whatsoever he shall say to you, do ye." (John 2:5))
[ Post Reply | Private Reply | To 6 | View Replies]

To: jerod

I have no problem with AD and BC, I’m a Christian sort of guy.
How do we refer to the 33 or so years Christ was alive?
WA?


9 posted on 02/13/2026 7:37:45 AM PST by rellic (No such thing as a moderate Moslem or Democrat )
[ Post Reply | Private Reply | To 6 | View Replies]

To: SunkenCiv
This concrete ceiling of the Pantheon is still holding up well, two thousand years after it was made. Nice work.


10 posted on 02/13/2026 7:42:02 AM PST by Repealthe17thAmendment
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv

Did it come in 50 pound sacks?


11 posted on 02/13/2026 7:43:04 AM PST by central_va (I won't be reconstructed and I do not give a damn... )
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv

Suddenly I have an urge to play some Pink Floyd.


12 posted on 02/13/2026 7:44:18 AM PST by dfwgator ("I am Charlie Kirk!")
[ Post Reply | Private Reply | To 1 | View Replies]

To: Thommas

Have you ever been to Pompeii?


13 posted on 02/13/2026 7:44:56 AM PST by TexasGator (:/)
[ Post Reply | Private Reply | To 3 | View Replies]

To: rellic

Thanks, SunkenCiv for once again finding and posting a very interesting article.

BTW I maintain that BCE simply stands for “Before the Christian Era.” (Drives libs even more insane whenever used.)


14 posted on 02/13/2026 7:48:31 AM PST by oldplayer
[ Post Reply | Private Reply | To 9 | View Replies]

To: TexasGator

I have been there but I was pretty drunk the whole time.


15 posted on 02/13/2026 7:49:15 AM PST by central_va (I won't be reconstructed and I do not give a damn... )
[ Post Reply | Private Reply | To 13 | View Replies]

To: Thommas

BCE an CE are “common era”. Those terms used to only be used used by Jews and Muslims instead of Before Christ and Anno Dominum.


16 posted on 02/13/2026 7:52:08 AM PST by xxqqzz
[ Post Reply | Private Reply | To 3 | View Replies]

To: WhoisAlanGreenspan?

BCE and CE make no sense because they are referring to an extraordinary historical event that BCE and CE adherents can’t seem to describe or want to acknowledge happened.


17 posted on 02/13/2026 7:56:24 AM PST by frogjerk
[ Post Reply | Private Reply | To 7 | View Replies]

To: SunkenCiv

The world is in denial when it does not admit the official calendars of the vast majority of the world use the Christian Gregorian calendar system and acknowledge that Christ is the reason for that data.


18 posted on 02/13/2026 8:04:46 AM PST by Wuli
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv

The world is in denial when it does not admit that official calendars of the vast vast vast majority of the world use the Christian Gregorian calendar system, and acknowledge that Christ is the reason for that form of dating.


19 posted on 02/13/2026 8:09:24 AM PST by Wuli
[ Post Reply | Private Reply | To 1 | View Replies]

To: central_va

Probably plastic buckets.


20 posted on 02/13/2026 8:13:52 AM PST by Ueriah
[ Post Reply | Private Reply | To 11 | View Replies]


Navigation: use the links below to view more comments.
first 1-2021-31 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson