Why We Should Turn CO2 into Concrete | Gabriel Falzone | TEDxLagunaBlancaSchool

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TEDx Talks

4 жыл бұрын

Have you ever wished for a concrete answer to addressing climate change? All puns aside, Gabriel Falzone’s TEDx talk addresses that topic literally. As a member of the Laboratory for the Chemistry of Construction Materials (LC2) at UCLA, Gabriel Falzone works to extend the service life of concrete, improve its thermal performance, and develop new concrete materials that absorb carbon dioxide. His TEDx talk addresses a groundbreaking way to produce concrete that halves the carbon produced, thereby identifying an innovative way to mitigate climate change through architecture and material science.
Gabriel Falzone is a Research Scientist in the Department of Civil & Environmental Engineering at the UCLA Samueli School of Engineering. As a member of the Laboratory for the Chemistry of Construction Materials (LC2) headed by Prof. Gaurav Sant, he has authored over 25 peer-reviewed publications. His research works to extend the service life of concrete, improve its thermal performance, and develop new concrete materials that absorb carbon dioxide. To this end, he is part of team CO2Concrete, a Finalist in the $20 million NRG COSIA Carbon XPRIZE competition for carbon capture and utilization technologies. He teaches courses related to concrete, construction management, thermodynamics, and MATLAB programming. A Bay Area native, Gabriel relocated to Los Angeles to attend UCLA, where he earned his degrees in Materials Science & Engineering (B.S. ’14; Ph.D. ’19). This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at www.ted.com/tedx

Пікірлер: 80
@WeddingDJBusiness
@WeddingDJBusiness 4 жыл бұрын
CO2 mineralisation I think is a great idea of a permanent solution to capturing and storing CO2. The waste gas CO2, released in the concrete making is sequestered back into the concrete block. CO2 (gas) to mineral CO3(solid) This is done by using the hydrated lime (Calcium hydroxide ) which can absorb the CO2. The process probably is more expensive but a necessary solution to reduce emissions.
@albertalbert7958
@albertalbert7958 4 жыл бұрын
Better unexplained than the video. Thanks. Elon Musk needs to be involved in this process. 50% reduction in CO2 emissions and more expensive?. Elon Musk projects cost and emissions reductions are usually over 90%.
@LoggyWD
@LoggyWD 3 жыл бұрын
And lime is produced by calcination, which is burning coal. For every co2 molecule absorbed, you need to emit 3 co2 molecules. But it's fine as long as it's outsourced to China, who doesn't have a carbon emission target according to the Paris accord.
@koolkleekai9387
@koolkleekai9387 4 жыл бұрын
Well lets get this show on the road !
@stephenatkinson2333
@stephenatkinson2333 4 жыл бұрын
Ingenious idea. Love it.
@kevintannum5033
@kevintannum5033 4 жыл бұрын
Amazing work!
@alexiaricartp
@alexiaricartp 4 жыл бұрын
very interesting!
@jaxx-inspiregrowcreate2862
@jaxx-inspiregrowcreate2862 4 жыл бұрын
*Extremely fascinating.*
@userMikeforsure1997
@userMikeforsure1997 4 жыл бұрын
Good video
@insightoftheages5571
@insightoftheages5571 4 жыл бұрын
Plants are going to be pissed... You are locking up thier food...
@littletree5871
@littletree5871 4 жыл бұрын
Lol
@enyiogb
@enyiogb 4 жыл бұрын
Biodiversity😀
@michaelclark-cdot8212
@michaelclark-cdot8212 Жыл бұрын
You can use the Mass of the Carbon Dioxide on Venus to Calculate the combined mass of the Limestone ( Calcium Carbonate ), and the Dolemite ( Magnesium Carbonate ) on Earth. It is around 1.14 X 10 ^ 21 kg. Then you can take the ratio of this material divided by the mass of the Earth to open you eyes. 1.14 x 10 ^ 21 divide by 5.95352 X 10 ^ 24 kg = 0.000 190 842 to 1.0. This is 0.019 % of the entire mass of the Earth sequestering about 99 % of all the CO2 on Planet Earth . THINK ABOUT IT. This is all possible because sea critters used the Calcium and Magnesium and combined it with CO2 to make CaCO3, and MgCO3 In Shallow Marine Environments. Perhaps we should promote the formation of limestone in shallow marine environments by giving reefs lots of what it needs to form reefs, in locations where the temperatures are not too cold, and not too hot.
@godzilla964
@godzilla964 2 жыл бұрын
Does this c02 concrete have a higher heat capacity than normal concrete?
@dr_senna_sabu
@dr_senna_sabu 4 жыл бұрын
👏👏👏
@pritamnipanikar7001
@pritamnipanikar7001 4 жыл бұрын
💙
@ghostfacechili1650
@ghostfacechili1650 4 жыл бұрын
Needs to be cost effective and not priced for too much profit, example man made diamonds are basically the same price as mined ones, guess regardless we need ever less carbon emission we can get these days 🤦‍♂️😭🤣
@rexmann1984
@rexmann1984 4 жыл бұрын
Wahoo! Solar frickin roads!!!
@redjackal5871
@redjackal5871 4 жыл бұрын
Go Laguna Blanca School
@alexisdespland4939
@alexisdespland4939 4 жыл бұрын
could rotary kilms be run on electricty alone or dose the extreme heat nessary mealt the electic wires.
@aylbdrmadison1051
@aylbdrmadison1051 4 жыл бұрын
Insulation.
@LoggyWD
@LoggyWD 3 жыл бұрын
Nichrome would but you could use tungsten. It's a waste of time because most of the electricity is produced by burning fuel anyway. All you manage to do is lose 60% of the efficiency.
@lohphat
@lohphat 4 жыл бұрын
For those of those prolific sweaters out there. Wear one, or two, cotton undershirts, and choose a dark colored dress shirt. Problem solved.
@DUDEiTHINKIMNUDE
@DUDEiTHINKIMNUDE 4 жыл бұрын
lohphat add some baby powder to your pits and your all set
@lohphat
@lohphat 4 жыл бұрын
@@DUDEiTHINKIMNUDE Just don't get it around your ovaries.
@kristianholstad9599
@kristianholstad9599 3 жыл бұрын
6:25 1 ton cement = 1 ton CO2? Not 9 ton CO2 ??????
@_vicary
@_vicary 4 жыл бұрын
How hot is 2000°F?
@flavioptferreira
@flavioptferreira 4 жыл бұрын
It's ºF-ing hot!
@stephenatkinson2333
@stephenatkinson2333 4 жыл бұрын
Answer : 2000 degrees Fahrenheit. 😃
@DjChronokun
@DjChronokun 3 жыл бұрын
blocks? ah yep, so you can't actually make pourable cement then? so basically useless?
@philandeswilliams1975
@philandeswilliams1975 4 жыл бұрын
He never says how much co2 reduction results worldwide from the use of his product at major scales.
@LoggyWD
@LoggyWD 3 жыл бұрын
It cannot reduce co2 worldwide because hydroxide lime which is used as a cement substitute in the process, is an expensive product that requires a lot of co2 emissions. The only usage is to produce the lime in poor countries where people don't care about co2 emissions. It's for rich countries who want to meet their emissions target.
@othmane-mezian
@othmane-mezian 4 жыл бұрын
Falzone is an Italian name
@nguyenvanquyet2883
@nguyenvanquyet2883 4 жыл бұрын
@TheThunderwars
@TheThunderwars 4 жыл бұрын
PLEASE UPVOTE SO THAT IT CAN BE SEEN BY EVERYONE This CO2 to concrete has been proven to be a really bad idea by french engineers at EDF. In order for the chemical reaction to work, you need alkaline chemicals. What this start up proposes is to use NaCl (which is basically salt). Fair enough. However, when you take the part that interests you, which is Na+, you will get a byproduct, Cl-. Cl- binds with H+ to create HCl, or chlorhydric acid. In order to absorb the equivalent of the production in CO2 of 5 coal plant for a year, you will produce the equivalent of the annual current production of chlorhydric acid. So what do you do with that excess chlorhydric acid that no one wants and that is problematic even at such small amounts ? No answer has been given yet, and this project is older than it seems.
@TaffmanGuyo
@TaffmanGuyo 4 жыл бұрын
In an act of unbridled irony Trump could build a wall & help deal with excess carbon dioxide [which he denies is a problem], you couldn't make it up . . . . oh, I did!
@liczkos
@liczkos 4 жыл бұрын
5 seconds of google: "The conversion of calcium hydroxide in the concrete into calcium carbonate from absorption of CO2 over several decades further strengthens the concrete and makes it more resistant to damage. This carbonation reaction, however, lowers the pH of the cement pore solution and can corrode the reinforcement bars." Not mentioning concrete needs apropriate sand with developed dimmensional grain, that Earth lacks right now so yeah, great idea :) More TedTalks, less science :)
@watchrami
@watchrami 4 жыл бұрын
liczkos you can use non metallic bars
@liczkos
@liczkos 4 жыл бұрын
Alright, however i think that the point of reinforcement is to use material that has higher physical capabilities than the matrix material (eg. concrete). Also you want that material to give the composite some elasticity, thats why we use steel because its more elastic than concrete, but also more sturdy. So using anything else than steel isn't doing the job. I don't decline that maybe in the future, we might use something else as the reinforcement. But technology isn't ready yet. And we still have lack of proper sand.
@lincoln1345
@lincoln1345 4 жыл бұрын
They already have coated rebar, so nice try. While I find your sand criticism to be fair and constructive to an overall ecological discussion, as we speak The Sand Is Going To Be Used Anyway; it's a separate problem. Why shouldn't we make a better concrete while also trying to use less of it? Again, only water is more abundantly handled material....on Earth. Your (non) solution is that we should not pursue this solution because you are demanding the immediate cessation of the use of the most abundant building material on Earth.....or what was your solution again? Oh yeah, you don't have one....I get your line of thinking (this isn't an infinite,perfect solution, therefore it's a waste of time) because I and everyone else fall into it regularly, and it serves many situations well. However, given the quantities of the present condition and the possible sequestration, the question of whether doing nothing or pursuing these methods is the more intelligent and moral course of action requires an answer so obvious as to not deserve any elaboration. In other words, move along, get out of the way, or come up with your own equal solution, but do not hold the rest of us back with lazy pinhole poking and muddying of the waters by combining separate issues, both as a result of an automatic, pessimistic, crazy uncle in the armchair attitude. Thank you!
@TheRimmot
@TheRimmot 4 жыл бұрын
@@lincoln1345 How is this a solution then? Like the OP said the same process happens with time anyways. Why put in the extra effort that probably causes even more CO2 to be emitted?
@Iucebowel
@Iucebowel 4 жыл бұрын
Liczkos random dude here saying we can use coated rebars, will that solve the Ph issue?
@beaubeaukitty5301
@beaubeaukitty5301 4 жыл бұрын
See if we can get a prolific billionaire to fund a charity designed and geared towards doing exactly what you propose then
@boblinda7
@boblinda7 4 жыл бұрын
13th comment
@jacobbarlow9267
@jacobbarlow9267 2 жыл бұрын
you wasted most of the speech talking about the problem and didn't bother catching people's attention with the solution and it's potential use cases till the last 3rd of the TED talk, the initial impression is arguably more important than the facts
@jacobbarlow9267
@jacobbarlow9267 2 жыл бұрын
someone needs to redo this topic
@hitmarker9514
@hitmarker9514 4 жыл бұрын
30th comment
@aylbdrmadison1051
@aylbdrmadison1051 4 жыл бұрын
Last comment.
@rexmann1984
@rexmann1984 4 жыл бұрын
Go back to the drawing board bro. This will only work for cinder blocks and the concrete dividers on highways, foundations will still be made with regular old concrete. The best route for future construction is concrete foundations with hempcrete buildings on them. The CO2 sequestered by the building will be more than double the CO2 to make the foundation.
@MeghnaPaul0
@MeghnaPaul0 4 жыл бұрын
✔✔✅✅
@itzpayam
@itzpayam 4 жыл бұрын
most people don't follow what u say
@ijasikku1706
@ijasikku1706 4 жыл бұрын
*..കമന്റ് തൊഴിലാളി കീ......* Like from kerala,INDIA 5501
@enyiogb
@enyiogb 4 жыл бұрын
Biodiversity would be truncated with this idea.
@aylbdrmadison1051
@aylbdrmadison1051 4 жыл бұрын
Anyone can *say* that, or anything else really. But if you were serious and had anything real to say, you would elaborate at least a tiny bit. Instead you utterly failed in making any realistic point whatsoever.
@jonjudice1155
@jonjudice1155 4 жыл бұрын
People, the problem isn't to much Co2, it's not enough Co2. This can't be said enough. Currently, atmospheric CO2 stands at about 400 ppm which is about one-third the level for optimum plant growth. "The Positive Impact of Human CO2 Emissions On the Survival of Life on Earth." This study looks at the positive environmental effects of carbon dioxide (CO2) emissions, a topic which has been well established in the scientific literature but which is far too often ignored in the current discussions about climate change policy. All life is carbon based and the primary source of this carbon is the CO2 in the global atmosphere. As recently as 18,000 years ago, at the height of the most recent major glaciation, CO2 dipped to its lowest level in recorded history at 180 ppm, low enough to stunt plant growth. This is only 30 ppm above a level that would result in the death of plants due to CO2 starvation. It is calculated that if the decline in CO2 levels were to continue at the same rate as it has over the past 140 million years, life on Earth would begin to die as soon as two million years from now and would slowly perish almost entirely as carbon continued to be lost to the deep ocean sediments. The combustion of fossil fuels for energy to power human civilization has reversed the downward trend in CO2 and promises to bring it back to levels that are likely to foster a considerable increase in the growth rate and biomass of plants, including food crops and trees. Human emissions of CO2 have restored a balance to the global carbon cycle, thereby ensuring the long-term continuation of life on Earth.
@911maxwell
@911maxwell 4 жыл бұрын
What is this guy going to do when he realizes that CO2 is a very minor factor in the climate. He’ll find that out soon when IPCC 2022 climate models and AR6 report are final. Pollution bad - CO2 not pollution
@HandyC
@HandyC 4 жыл бұрын
So what is the cause then Einstein
@911maxwell
@911maxwell 4 жыл бұрын
Andy C don’t be like the new grads I hire who leave college expecting everyone to spoon feed them info. I gave you threads to look up the research yourself. Here’s another thread, new research proves that solar forcing is important and it was included in the CMIP6(v3.2) ipcc model.
@911maxwell
@911maxwell 4 жыл бұрын
Andy C and I’m not quite Einstein, he was a physicist, I’m an environmental scientist
@911maxwell
@911maxwell 4 жыл бұрын
The Pixel Mudkip I believe your listing green house gases, by far the most significant green house gas is water vapor. That’s right water vapor traps in the most heat.
@Iucebowel
@Iucebowel 4 жыл бұрын
@@911maxwell but you said CO2 not pollution and that's wrong. You could have said it's not the *only* factor and that we should focus on cutting down animal production for the methane, water vapor and such, and that left them confused.
@silascochran9705
@silascochran9705 4 жыл бұрын
I'm a skinny little dude I used to break concrete cinder block with my feet my right one my boss said holy s*** I was giving you a hard time and you took it I don't kick people unless they ask for it🥋🤸‍♂️
@doseofreality420marianetti2
@doseofreality420marianetti2 4 жыл бұрын
Your uninformed if you don't think that more Co2 is good for our environment. Ask a green house worker what increased Co2 does to the plant life.
@RipDipTaterChip
@RipDipTaterChip 4 жыл бұрын
Doseofreality420 Marianetti sounds like you don’t understand what CO2 does in the atmosphere.
@Iucebowel
@Iucebowel 4 жыл бұрын
@@RipDipTaterChip talking to a guy with 420 in their name lmao
@KiiroSagi
@KiiroSagi 4 жыл бұрын
I refuse to believe this guy really couldn't tell how horrible his talk was. My guess is TED has a minimum length requirement and that's where all that boring science that literally no one would remember was added. Literally the first 80% of this talk was unnecessary and someone talking about reducing waste should do better. I'm skeptical of every Ted Talk and you should be too but the logic here is sound and I can't be bothered to do fact-check and number crunch so I'll take this guys word for it and congratulate him and his team for coming up with a way to halve CO2 emissions in this area. But this is not enough and TED should get rid of this minimum talk length nonsense that I highly suspect they have.
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