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Posted: 1/13/2021 11:03:07 PM EDT
[#1]
I volunteer Wisconsin roads for the new formula.
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Posted: 1/13/2021 11:33:34 PM EDT
[#2]
Quote HistoryQuoted: Sounds like they got lucky. 
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Posted: 1/13/2021 11:41:05 PM EDT
[#3]
Quote HistoryQuoted:
How did the concrete at Fukushima hold up? |
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Posted: 1/13/2021 11:43:33 PM EDT
[#4]
I figured it was peasant blood mixed into the mortar
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Posted: 1/13/2021 11:46:50 PM EDT
[#5]
Quote HistoryQuoted: Roman bridges surviving all over Europe. And no salt water? |
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Posted: 1/13/2021 11:48:21 PM EDT
[#6]
They had to do something with all that ash from Mount Vesuvius.
When life buries your neighbors under meters of burning deadly volcanic ash, make concrete. |
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Posted: 1/13/2021 11:48:38 PM EDT
[#7]
For some reason this made me think of the Star Trek transparent aluminum
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Posted: 1/13/2021 11:49:28 PM EDT
[#8]
Quote HistoryQuoted: Besides the sanitation, the aqueducts, the baths, the really great concrete and nuclear power, what have the Romans ever done for us? Shown us what hubris in a nation eventually results in. |
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Posted: 1/13/2021 11:54:43 PM EDT
[#9]
Quote HistoryQuoted: Pretty common knowledge that the longer you wet cure the stronger it will be. Even the concretes we use now will continue to harden after placed if it stays wet. At one time, Paul Harvy did an episode on how the concrete locks of the Panama Cannal were still water hardening. |
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Posted: 1/14/2021 12:01:24 AM EDT
[#10]
Quote HistoryQuoted: Because of carbonation, Roman concrete would never have lasted if it was reinforced. The only reason we can't use it here is because much of the US is seismically active and we need lateral (sideways) capacity. So we are giving up having 200 year concrete by having structures that will need to be maintained, but can withstand lateral loads. Carbonation is kind of a cool process, eventually it will allow corrosives to 'seep' into the concrete and eventually reach the rebar, and eventually it will rust and expand, spalling the concrete off. You mean like the Sunshine skyway bridge? |
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Posted: 1/14/2021 12:04:11 AM EDT
[#11]
Quote HistoryQuoted: I volunteer Wisconsin roads for the new formula. Fucking A |
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Posted: 1/14/2021 12:05:02 AM EDT
[#12]
I could do all of that shit if I too, had 'alien' technology at my disposal.
Geeze. Chris |
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Posted: 1/14/2021 12:10:32 AM EDT
[#13]
 Yeah but can I grind it up and snort it? |
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Posted: 1/14/2021 12:16:11 AM EDT
[#14]
Quote HistoryQuoted: How did the concrete at Fukushima hold up? |
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Posted: 1/14/2021 12:30:57 AM EDT
[#15]
Literal Unobtainium...
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Posted: 1/14/2021 12:36:11 AM EDT
[#16]
Quote HistoryQuoted: They had to do something with all that ash from Mount Vesuvius. When life buries your neighbors under meters of burning deadly volcanic ash, make concrete. They probably noticed the petrified corpses were indestructible |
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Posted: 1/14/2021 12:42:31 AM EDT
[#17]
Quote HistoryQuoted: We knew this years ago. This isn’t new. Yeah, I was thinking the same thing. Pretty sure my concrete guy told me that about 1994, probably didn't use the technical term. |
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Posted: 1/14/2021 12:45:21 AM EDT
[#18]
My eyes must be going to hell. Glanced at the name, and thought it said "aluminum toblerone".
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Posted: 1/14/2021 12:51:26 AM EDT
[#19]
Quote HistoryQuoted: This is not a braking discovery...but still very Interdasting info. Jackson, Marie D.; Mulcahy, Sean R.; Chen, Heng; Li, Yao; Li, Qinfei; Cappelletti, Piergiulio; Wenk, Hans-Rudolf (2017). "Phillipsite and Al-tobermorite mineral cements produced through low-temperature water-rock reactions in Roman marine concrete". American Mineralogist. 102 (7): 1435–1450. doi:10.2138/am-2017-5993CCBY. ISSN 0003-004X. |
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Posted: 1/14/2021 12:55:34 AM EDT
[#20]
Aluminous Tobermorite might become my porn name should my life ever move in that direction.
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Posted: 1/14/2021 12:56:17 AM EDT
[#21]
Now the team is looking for ways to make concrete last longer and be more environmentally friendly. Liberals don't like stuff that isn't Biodegradable. 
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Posted: 1/14/2021 12:57:31 AM EDT
[#22]
Quote HistoryQuoted: Until it hits around 60. Then it needs supplements. Quote HistoryQuoted: Quoted: Pretty common knowledge that the longer you wet cure the stronger it will be. Even the concretes we use now will continue to harden after placed if it stays wet. Until it hits around 60. Then it needs supplements. LMAO, You sonofabitch! 
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Posted: 1/14/2021 1:42:12 AM EDT
[#23]
Quote HistoryQuoted: For some reason this made me think of the Star Trek transparent aluminum @Mikalis Also real now Used in special applications as it isn't down to the same price point as beer cans. |
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Posted: 1/14/2021 2:06:00 AM EDT
[#24]
So is this like super plasticizer and a little fiber?
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Posted: 1/14/2021 2:10:34 AM EDT
[#25]
CNN Headline:
White people use white privilege to make better concrete. |
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Posted: 1/14/2021 2:17:18 AM EDT
[#26]
Quote HistoryQuoted: Because of carbonation, Roman concrete would never have lasted if it was reinforced. The only reason we can't use it here is because much of the US is seismically active and we need lateral (sideways) capacity. So we are giving up having 200 year concrete by having structures that will need to be maintained, but can withstand lateral loads. Carbonation is kind of a cool process, eventually it will allow corrosives to 'seep' into the concrete and eventually reach the rebar, and eventually it will rust and expand, spalling the concrete off. In the last few years they have started using green coated rebar in new bridge constriction. IDK who though putting raw iron inside of concrete was a good idea, but it's a nightmare. Most bridges in the USA now need replaced. Oh yea, and we are broke... |
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Posted: 1/14/2021 2:17:54 AM EDT
[#27]
Quote HistoryQuoted: I've worked in some very old buildings that drilling holes in the concrete was more like sacrificing masonary bits to the gods. I tried to install a new shower head and riser in my basement shower on the 1950's era foundation wall. It was like drilling into Wonder Woman's chastity belt. Broke several bits and didn't make much progress. Wound up drilling out the old hardware and using the original holes with some larger tapcons. |
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Posted: 1/14/2021 2:17:59 AM EDT
[#28]
Quote HistoryQuoted: Good thing Italy’s not seismically active.  Quote HistoryQuoted: Quoted: Because of carbonation, Roman concrete would never have lasted if it was reinforced. The only reason we can't use it here is because much of the US is seismically active and we need lateral (sideways) capacity. So we are giving up having 200 year concrete by having structures that will need to be maintained, but can withstand lateral loads. Carbonation is kind of a cool process, eventually it will allow corrosives to 'seep' into the concrete and eventually reach the rebar, and eventually it will rust and expand, spalling the concrete off. Good thing Italy’s not seismically active. I wasn't going to say it, but someone had to... |
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Posted: 1/14/2021 2:19:24 AM EDT
[#29]
Shit would last about 3 CT winters.
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Posted: 1/14/2021 2:24:32 AM EDT
[#30]
Quote HistoryQuoted: So how do i put it in my weiner And that my friends, is how we discovered the Fall of Rome |
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Posted: 1/14/2021 2:31:35 AM EDT
[#31]
Quote HistoryQuoted: Pretty common knowledge that the longer you wet cure the stronger it will be. Even the concretes we use now will continue to harden after placed if it stays wet. Quote HistoryQuoted: Pretty common knowledge that the longer you wet cure the stronger it will be. Even the concretes we use now will continue to harden after placed if it stays wet. Back on the farm we would pour concrete footings for grain bins. They were wrapped in plastic and opened every couple of days to spray down with a water mister. For months and months. When done the concrete would barely chip with a sledge. It was like steel. Quoted: Wasn't there a Star Trek episode where they mined tobermorite  I think you're referring to bombarding the tobermorite with an anti-proton beam to generate an inverse nadion pulse to jump start a cold warp engine. |
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Posted: 1/14/2021 3:05:18 AM EDT
[#32]
Quote HistoryQuoted: In the last few years they have started using green coated rebar in new bridge constriction. IDK who though putting raw iron inside of concrete was a good idea, but it's a nightmare. Most bridges in the USA now need replaced. Oh yea, and we are broke... That’s not due to carbonation, it’s due to cracking, road salts and freeze-dry cycles. They are trying to prevent the salt from getting to the steel. Nothing stops carbonation but depth to steel. |
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Posted: 1/14/2021 3:07:00 AM EDT
[#33]
Quote HistoryQuoted: I wasn't going to say it, but someone had to... The areas that have old structures are obviously pretty stable. The aqueducts that I’ve seen in pic ( ever been there) were all brick or mortared stone, which can move around a bit more and has to be maintained. |
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Posted: 1/14/2021 3:54:34 AM EDT
[#34]
So, does this mean that I could combine Roman Concrete with carbon fibre rebar for the ultimate TEOTWAWKI fap-bunker?
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Posted: 1/14/2021 4:31:38 AM EDT
[#35]
Quote HistoryQuoted: Don't forget roads and public health. Quote HistoryQuoted: Quoted: Besides the sanitation, the aqueducts, the baths, the really great concrete and nuclear power, what have the Romans ever done for us? Don't forget roads and public health. And the wine. We'd miss the wine if the Romans left. |
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Posted: 1/14/2021 5:09:30 AM EDT
[#36]
Quote HistoryQuoted: Besides the sanitation, the aqueducts, the baths, the really great concrete and nuclear power, what have the Romans ever done for us? Peace? |
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Posted: 1/14/2021 5:15:30 AM EDT
[#37]
Quote HistoryQuoted: Because of carbonation, Roman concrete would never have lasted if it was reinforced. The only reason we can't use it here is because much of the US is seismically active and we need lateral (sideways) capacity. So we are giving up having 200 year concrete by having structures that will need to be maintained, but can withstand lateral loads. Carbonation is kind of a cool process, eventually it will allow corrosives to 'seep' into the concrete and eventually reach the rebar, and eventually it will rust and expand, spalling the concrete off.  |
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Posted: 1/14/2021 5:26:06 AM EDT
[#38]
There are a number of things done today that make modern concrete exponentially stronger than roman concrete. Typical sand gravel cement water concrete normally goes to around 4000psi. With chemicals and other tricks 10,000 psi mud is poured daily.
Type ii Portland cement is garbage for long term, but it lasts longer than people so it sells. Also there is an admixture used for strength that has the same effect. It's used for liquid storage containment facilities and bridge decks. Google micro silica- from the steel mill. The Romans got lucky and hit a two fer. Their mud could not pour some modern high strength designs. |
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Posted: 1/14/2021 6:40:55 AM EDT
[#39]
Quote HistoryQuoted: Because of carbonation, Roman concrete would never have lasted if it was reinforced. The only reason we can't use it here is because much of the US is seismically active and we need lateral (sideways) capacity. So we are giving up having 200 year concrete by having structures that will need to be maintained, but can withstand lateral loads. Carbonation is kind of a cool process, eventually it will allow corrosives to 'seep' into the concrete and eventually reach the rebar, and eventually it will rust and expand, spalling the concrete off. Oh, so this discovery doesn't really help us that much. Have any other comments on other additives? I'm genuinely curious. |
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Posted: 1/14/2021 7:06:40 AM EDT
[#40]
Some were builders
Some were kangs 
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Posted: 1/14/2021 7:15:53 AM EDT
[#41]
Quote HistoryQuoted: Pretty common knowledge that the longer you wet cure the stronger it will be. Even the concretes we use now will continue to harden after placed if it stays wet. Good thing they didn’t have the concrete lobby that buys off the PA state legislature and PennDOT to use their garbage concrete that decays and crumbles in five years. Guaranteed return business. |
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Posted: 1/14/2021 7:42:32 AM EDT
[#42]
Roman concrete cock is my new stage name.
so hard a cat couldn't scratch it.
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Posted: 1/14/2021 8:23:16 AM EDT
[#43]
Quote HistoryQuoted: Don't forget roads and public health. Thank you Loretta. |
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Posted: 1/14/2021 8:25:26 AM EDT
[#44]
People seem confused by the article.
Japan's nuclear plants are by the sea. The Roman sea barriers are as well. It's the location that happened to make the crystallization occur in the cement. Not a special formula. So the Japanese and Romans didn't do it on purpose, it has nothing to do with nuclear power, and it was only in certain structures, not all their structures. So the Romans didn't 'know how to make concrete' any more than they did before the crystallization was investigated. Some replies were jokes. I get that. Many seemingly weren't. |
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Posted: 1/14/2021 8:33:09 AM EDT
[#45]
Quote HistoryQuoted: Back on the farm we would pour concrete footings for grain bins. They were wrapped in plastic and opened every couple of days to spray down with a water mister. For months and months. When done the concrete would barely chip with a sledge. It was like steel. I think you're referring to bombarding the tobermorite with an anti-proton beam to generate an inverse nadion pulse to jump start a cold warp engine. But without using a tachyon beam, you'll just open up a temporal vortex that will destabilize the quadrant micro gluon balance. |
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Posted: 1/14/2021 8:45:18 AM EDT
[#46]
Quote HistoryQuoted: For some reason this made me think of the Star Trek transparent aluminum It's already here. They built that thing at The Louvre with it. |
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Posted: 1/14/2021 8:50:38 AM EDT
[#47]
Quote HistoryQuoted: I've worked in some very old buildings that drilling holes in the concrete was more like sacrificing masonary bits to the gods. Same here. I have jackhammered some old 1920's concrete that was extremely hard. It was in an old school cotton seed processing facility. It had a green tint to it. |
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Posted: 1/14/2021 8:54:54 AM EDT
[#48]
How cool! When I was in Rome, this was a great mystery to everyone. Romans did brain and cataract surgery too! We should be 800 years more advanced than we are right now.
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Posted: 1/14/2021 9:04:50 AM EDT
[#49]
Kind of unrelated:
If US highway maintenance guys could figure out a way (or expend the necessary effort) to patch asphalt highways WITHOUT LEAVING A !@#%^& BUMP IN THE ROAD, things would be much smoother. I read something long ago that was kind of humorous: A college kid from a Scandinavian country was in the US and riding in a car with some local folks. The foreign student kind of chuckled, and they asked him what was funny. The foreign student said, "That sign that we just passed said 'Bump'." The locals asked why that was funny and where he was from didn't they have signs to warn drivers of bumps in the road. He said, "No. Back home instead of putting up warning signs we just fix the bumps." |
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Posted: 1/14/2021 9:08:13 AM EDT
[#50]
Quote HistoryQuoted: My eyes must be going to hell. Glanced at the name, and thought it said "aluminum toblerone". That's what I thought too Roman's be mixing aluminum, chocolate bars, and stuff into their concrete. |
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