I have lost hearing in my left ear and I can now hear my pulse in the right. otherwise thanks. very informative.
@willbee67853 жыл бұрын
You now have tinnitus.
@xXcagllariXx5 жыл бұрын
RIP headphone users.
@orcoastgreenman5 жыл бұрын
Thine hath felt the wrath of the DRAGON!!!
@HayatTeleHealth5 жыл бұрын
damn!!!
@zippy4413 жыл бұрын
I guess Tey must have re uploaded the audio... I'm wearing head phones seems good!
@willbee67853 жыл бұрын
Kill the dragon bit.
@michaelmcilrath9466 Жыл бұрын
Loe your videos…. I built a ferro-cement boat in the 1970’s but Im still learning so much from you. Thank you
@darlington32675 ай бұрын
God bless you so much..After watching your lecture..i perfectly under stood what several hours of class lecture couldnt explain.
@bappigorai5 жыл бұрын
That's was awesome. Animation makes super easy to grasp the fundamentals quickly. I would request you to make videos on GGBS and why it can't be used as 100% replacement for making concrete.
@TylerLey5 жыл бұрын
I am glad you like it! I have some videos on slag. Here is one: kzbin.info/www/bejne/ZqiydKFtqNKgf9U Here is the other: kzbin.info/www/bejne/jICsomiJe6mKrMU Slag needs an activator to make it react. That is why we mix OPC and slag together. You can use slag at 100% replacement but you need to add an alkali activator to the pore solution. This is called a geopolymer. I would suggest trying 80% slag and 20% OPC. For some applications, this is a really great mix. This material can have problems with carbonation and so watch out!
@Ilove3SGTE10 ай бұрын
I'd like to point out that it sounds like this is only a problem if we are using iron rebar. It sounds like the concrete is stronger so if we use a different reinforcement maybe we can eliminate that problem.
@mallikarjun4304 жыл бұрын
sir the video information is too good and very usefull information please make a video regarding carbon cure and solidia measure to control carbonation.
@MsZizi925 жыл бұрын
Very nice and well explained video! However, I would like to notice something. You mentioned that the biggest concern in geopolymer concrete is carbonation. I think you are might referring to alkali activated materials which are NOT Geopolymers. The carbonation of geopolymer concrete does not affect the pH. It yields K2CO3 or Na2CO3 with a minimum pH of 10-10.5, which protects chemically the reinforcement against corrosion.
@TheTomBevis3 жыл бұрын
I've been under bridges where I could see stalactites growing from the carbolic acid effects.
@sinclairconstructiongroup48445 жыл бұрын
Great work, Tyler. Thank you so much for sharing this!
@TylerLey5 жыл бұрын
Thank you!!!
@nobreighner5 жыл бұрын
Normally don't even click thumbnails that look like this, but your info is better than expected - thanks for putting it out there. CarbonCure has to give carbonation a head start, and they seem to sidestep the subject. In 50 years maybe we'll know if it mattered. Fresh concrete does lose some slump with CO2 injected, but not much different.
@TylerLey5 жыл бұрын
Thanks for the comment! I have watched your videos in the past and really like where you are headed. We should talk about a collaboration sometime as I am a concrete bubble freak. I have a bunch of videos on the topic.
@nobreighner5 жыл бұрын
Thanks for your responsiveness. I have to think about presenting the term "spacecrete", because the material is essentially regular concrete - can have air or not - but it "defies gravity" regardless. Excessive air makes it way easier to do that, but a lot lot weaker, and so only incidental air from injected thickeners is included. But many people think it is aerated cement because of the name. Last break was 4400 psi. 3D print people tell me that their mix is 8x the cost of concrete, plus labor/equip of onsite mixing. We inject admix at
@TylerLey5 жыл бұрын
Sounds really cool! Let me know if you want to talk offline.
@nobreighner5 жыл бұрын
I sent an email - just making sure it did not go to the spam folder.
@TylerLey5 жыл бұрын
Got it! I have been swamped today.
@drewd7824 Жыл бұрын
Can you do a video about what we should be asking the plant about their mix?
@vjaceslavsverdins5174 Жыл бұрын
Awesome, I will never forget about the Knights of Calcium Hydroxide order😃
@kenbehr55015 жыл бұрын
Yo amigo first I like to thank you for your videos. I been in this business for 15 years and I actually work for the company that was on the i35 bridge that fell but I would like to point out that all epoxy coatings on all rebar is applied with out any prep any other industrial painting is done by first blasting steel so it has a profile something for paint to grab on to it no wonder epoxy falling off it kinda stupid and it that simple
@sergeyshubin66795 жыл бұрын
I asked a question in other you video and found the answer here. You are best of the best, Tylor!
@TylerLey5 жыл бұрын
Thanks Sergey!
@billhopen3 жыл бұрын
can you paint on new calcium carbonate solution to invade the pours an nutrilize the acid formation?
@mopo39535 жыл бұрын
Super cool, I appreciate the effort to explain it like to 5 years old
@TylerLey5 жыл бұрын
Thanks!
@MrGGPRI5 жыл бұрын
Boulder Dam was completed in 1935-- ancient and done without computers and knowledge now available for cements. Should we be worried now about 84 years later that the concrete used will deteriorate and fail ??
@jbhix26915 жыл бұрын
Fascinating.
@kenmorrisproducer2 ай бұрын
I read an interesting research paper where baking soda was added to concrete before it being poured to carbonation.
@sterlgirlceline Жыл бұрын
⭐️⭐️⭐️⭐️⭐️⭐️You have such an endearing personality in addition to top-caliber, empirical information. Thank you!
@davidcmoffatt5 ай бұрын
Another noob dumb question. Why not add anode rods to the rebar like they do for maritime steel? Seems like the process in concrete is much slower so the rod would last decades. If you had an exposed bit of rebar you could even replace the rods. Just curious. Thanks
@Lumby15 жыл бұрын
Wonderful lectures Mr. Ley, subscribed immediately, much appreciated, sir.
@roygbiv516411 ай бұрын
I wonder, without googling it, if this is a similar process to tooth decay especially when someone drinks a lot of carbonated beverages?
@jimlennington42547 ай бұрын
Does a crystalline water proofing additive such as Xpex slow this carbonation process down?
@jeffwilson13995 жыл бұрын
Just make good concrete! That is half the battle. Consolidation, curing, and excessive w/c ratio are problems most often created by the contractor. My experience is that it is far more difficult to be a ready-mix supplier, than a concrete contractor.
@TylerLey5 жыл бұрын
Jeff, I agree that making good concrete is the key. That is what I said at the end of my video. You are right that every step in the process is critical.
@GrazUralKamaz3 жыл бұрын
What if you paint over concrete... Or plastering ? Will it work ?
@minkotter12422 жыл бұрын
What about plastering with cement mortar and then whitewash ?
@ashokkingkumar5 жыл бұрын
My house is entire lime+clay mortar-plaster & lime concrete with teak wood infused.. i plan to build new lime house but concrete??? Lime + zinc gal steel bar + traditional mix (jaggery+ haritaki) etc herbs and zero cement is possible or ...??? House with 40 - 50 yrs life span is ok for me but i need complete lime house for fresh inside air + other health reasons... Teak is very very expensive than FRP... KINDLY ADV...!!!
@gagegreen68633 жыл бұрын
Thank you sir.
@bobbywhitus61073 жыл бұрын
Tyler, great video as always. I love how your passion comes out. You truly are a freak for concrete, in the best way. How would ground water seepage relate to the carbonation of concrete? Assuming some CO2 is dissolved into the water as it falls through the atmosphere, and then more CO2 is added from the soil, would ground water seeping through cracks or pores greatly accelerate the process? What is more damaging to concrete, water vapor transmission or liquid water absorption?
@dustinmarkley454 жыл бұрын
Could you just spray a solution periodically on the outside to maintain the higher ph?
@honeytubs2 жыл бұрын
Would lime work as such a solution? Whitewash for example.
@mlrable3 ай бұрын
Would a mixture of baking soda help I solution
@hg2.3 жыл бұрын
What about giving it a coat of paint, for a sealer?
@danhill5143 жыл бұрын
how does the increase in voids lead to shrinkage mechanically?
@mohamedsaady98384 жыл бұрын
nice and simple lecture good job bro
@absolutelynobody94624 жыл бұрын
Thanks Tyler!
@falgunsankhat3 жыл бұрын
thank you sir 🙏🏻
@ronallan86805 жыл бұрын
I did like the video! Please keep them coming
@TylerLey5 жыл бұрын
Thanks!
@huntera1234 жыл бұрын
Great video. So the amazing concrete trusses and other sophisticated support elements relying on pre/post tensioned steel are doomed due to gas infusion, no matter the weather??!!
@dbc16834 жыл бұрын
Tyler, I would never dislike one of your videos, but this one is annoying because of that trendy editing you’ve done. You know, cutting the video after every sentence, the starting again. I like the lecture style videos much more. Please keep sharing your knowledge, as I’m fascinated with the content.
@junioralberto6328 Жыл бұрын
Thank You Mr.Tyler for the concise explanation. anyway, is there any correlation between carbonation and chloride penetration especially concrete structures located in coastal line? Which phenomenon has more detrimental effect for concrete?
@ireshNawarathna4 жыл бұрын
Wow 😊 amazing stuff and well explained too
@thehomeconstructiontoolcha8575 жыл бұрын
What about zink anodes, with copper wire welded to the cage. like the hudge zink blocks we dropped in the bay attached to a warf. four hundred to five hundred pound blocks, every 20 feet or so along a 1100 ft warf. its been about 12 years. are the zink blocks still protecting the steel rebar? My boat eats zinc anodes like candy. also. a Hot boat Dock or Warf with leaky power. eats up zinks faster.
@thzzzt4 жыл бұрын
"Some rust on rebar is good" I've often heard. The rebar I get from my local yard often is already rusted somewhat. Could you address this issue? Is "some" rust good? And how much is "some"?
@arunbisht55244 жыл бұрын
May i know the easist way to remove the carbonation process in a wall made by stones and concrete
@nedisawegoyogya Жыл бұрын
No, geopolymer concrete won't undergo carbonation. But it will undergoes the same weathering as granite, which is far slower I'd guess.
@kintudominique62754 жыл бұрын
What if you have already built the structure and there are signs of carbonation, what do you do?
@jakovbudimac99714 жыл бұрын
Amazing chanel, just descovered it in time for an exam :) Could you do a video on the effects of alkali (NaOH or Ca(OH)2 for example) on concrete, i cant seem to find much on this topic. Cheers!
@ElectricityTaster5 жыл бұрын
Do you have a video on Solidia's technology? Sounds interesting in combination with fiber rebars.
@samben8824 жыл бұрын
How do you know if concrete is suffering from carbonation or Chloride attack, they seem similar. Do you have to do a phenolphthalein to test?
@SS-je9ue5 жыл бұрын
Tyler.... I am researching the use ICF Insulated Concrete Forms. Naturally comparing wood frame longevity to concrete. Combining the use of FRP rebar or Basalt in this application for residential construction appears to be a step in the right direction. I am curious with regards to what effect if any the insulated forms might have on slowing carbonation and therefore increasing the life of the concrete? Any thoughts or research in this direction?
@homayounshirazi95505 жыл бұрын
Someone at U of Arizona has introduced addition of Iron in the mix and the elimination of cement altogether with I introduction of CO2 and water. States the product has strength equal that of concrete. Could you comment on that, please?
@robertplunkettschesslab4 жыл бұрын
I have a question. If you made a structure out of self compacting concrete with micro and macro glass fibres with steel fibers as well and used fiber basalt rebar and then made the footer out of self compacting concrete with macro and micro glass fibers and fiber basalt rebar and just left out the steel fibers wouldn't this type of structure take the best advantage of this enivitable process?? You would have a ductile structure attached to a non ductile footer and over time as the process unfolded there would be corrosion in the structure but none in the footer even if all of the steel fibers eventually corroded the footer would effectively become stronger due to the process and the upper structure after losing all of the steel fibers would become less ductile but also less dense making it easier for the now stronger footer to support. I'm considering building a house and watched almost all your videos on concrete and this was the ultimate direction I was leaning. Is my analysis correct or am I missing something? The point would be that I'd get a structural trade off over time. I would lose ductility but gain strength and the strength ratio between the footer and the main structure would be increased by never having any steel fibers in the footer to begin with that way the slight density loss in the main structure would add to the total ratio of strength gain. So I lose a structure that can be ductile over time but eventually it would just become like a giant artificial rock with the denser rock being the footer. Am I wrong here?
@dhanajibangar31225 жыл бұрын
Your videos are awesome..
@lotfidj78255 жыл бұрын
great work thank you sir
@dhanajibangar31225 жыл бұрын
How does the concrete curing takes place?Can u explain with the chemical reaction pls...
@robertmcanarney75893 жыл бұрын
Does sealing concrete effect this condition? What do you think about aircrete?
@eladlinaima88065 жыл бұрын
Thank you your video helped me a lot.
@TylerLey5 жыл бұрын
Thanks!
@dbl888884 жыл бұрын
Hi Tyler. Thanks for your video. Im a subscriber. How about aircrete used for walls. It floats meaning water wont penetrate it. What do u think about it used for walls. Its mainly used for insulation not to.carry weight. Can u make a video about it. Thanks
@bandhukakuruppu10213 жыл бұрын
Hi! At 2:44 , you are telling that corrosion will begin at pH = 10. But, in color test, acidic condition (clear color, pH below 8) is responsive for higher corrosion. Could you please explain the confusion here? btw learned a lot from this vid. Thanks!!!
@ed1pk Жыл бұрын
What’s the confusion? That pH test just so happens to change colors at 8. It’s not exact but close enough. Any pH starting at 10 and below causes corrosion. The lower the number, the more acidic thus more corrosion.
@dodyh6575 жыл бұрын
Thanks for the hard work and funny way to explain all of these boring topics.. It works for me, man! Can we use liquid densifier eg sodium/lithium silicate to help to reduce the AAC problems? Which one is more effective to fight those problems, liquid densifier vs penetrating sealer (eg. Silane, siloxane, siliconate)? Since both products increase concrete impermeability (in different way).
@mustafah92094 жыл бұрын
RIP ashen one.
@lumo94353 жыл бұрын
Isn't highly carbonated concrete more permeable than non-carbonated? I've read some papers claiming so.
@lumo94353 жыл бұрын
@Tyler Ley Here's one www.claisse.info/My%20papers/Paper%2011.pdf Can you please answer?
@ForensicCats5 жыл бұрын
Keep it up Tyler... ty
@TylerLey5 жыл бұрын
Thank you! More coming!!!
@richardbaker3842 Жыл бұрын
What make ancient concrete last 1000s of year like the Roman aqueducts and a number of Roman structures.
@bpark100015 жыл бұрын
CO2 being absorbed out of the atmosphere is NOT a green thing, because the CO2 in the cement raw material was cooked out and released into the atmosphere when the cement was made.
@TylerLey5 жыл бұрын
It is better than not being absorbed. Can you think of any other material that absorbs some of the CO2 that it released? =) I am kinda kidding because I don't think the amount that it absorbs is very much. Thanks!!!
@bpark100015 жыл бұрын
@@TylerLey Ultimately, the amount absorbed is equal to the amount released when the cement is "cooked" (that is the primary reaction in the kiln other than dehydration). But the heat required for the kiln is usually made by burning carbon-based fuel, so even with the after-absorption, there is a net release of CO2.
@ElectricityTaster5 жыл бұрын
@@TylerLey My bones.
@huntera1234 жыл бұрын
So what's going to happen to the big concrete dams🤯. Hoover dam failing damages the entire United States. Man, you've ruined my sleep. How much would galvanized rebar help? What about complex environments where salt can be carried in the air... wouldn't that percolate into your voids and wreak even more damage??
@chrisyoung19965 жыл бұрын
I think that your ability to see into the outcome is important but the ability to look at the end and begin again is hidden in many structures city buildings bricks falling off walls etc which leads me to think of how primative we all really are
@huantran57255 жыл бұрын
Good video. Can you make video about use steel slag in concrete!
@TylerLey5 жыл бұрын
Check these out: kzbin.info/www/bejne/jICsomiJe6mKrMU kzbin.info/www/bejne/ZqiydKFtqNKgf9U
@matekochkoch5 жыл бұрын
Have you ever made a pH check on sand? It is not rare that it goes well below 6 pH.
@AmazeConcrete4 жыл бұрын
Really i like all of yours good topics #AmazeConcrete
@PraxZimmerman6 ай бұрын
What i'm hearing is i should keep a co2 scrubber in my basement.
@theyuha5 жыл бұрын
Does this reaction occur on areas protected from the weather, like under ground and in covered areas? Does silane help keep this from happening?
@TylerLey5 жыл бұрын
Any place air can get to. In the soil this happens over the top few feet.
@theyuha5 жыл бұрын
@@TylerLey 100 years does seem very long for the service life of a structure. Does silane extend this time- does it act as a barrier to this?
@user-bo8yt4uc8b5 жыл бұрын
Does painting of the surface and keeping it in good paint help how much?
@AHMEDALSHAIBANIasa4 жыл бұрын
you may refer to EN 1504- repairing principles. will help you much.
@salamamer7025 жыл бұрын
Thank you Relly we want a solution for all problems is there additive which Mix to concrete in concrete car
@TylerLey5 жыл бұрын
Thanks Salam for the response. I am not sure I understand, could you ask again?
@patkonelectric5 жыл бұрын
@@TylerLey He was joking. Your the Sheldon Cooper of concrete. Not really, just a language problem .
@ForensicCats5 жыл бұрын
They want a magic additive that can be added to all the mixtures in the concrete truck... Of course, it does not exist... (he wants an aspirin)...
@salamamer7025 жыл бұрын
Tyler Ley My question is whether there is an added product that is suitable for all concrete defects
@sinclairconstructiongroup48445 жыл бұрын
We are making the best concrete that we can!
@TylerLey5 жыл бұрын
Awesome!!!
@luderudecrude5 жыл бұрын
Idea, use CO2 to make the bubbles in aircrete. if the bubbles are evenly dispersed and the CO2 is good in thin layers, then you should have a superior product
@TylerLey5 жыл бұрын
The CO2 will carbonate the concrete. This makes it weak, unable to protect the reinforcing steel, and it will also crack.
@luderudecrude5 жыл бұрын
@@TylerLey Tyler Ley I want to play with aircrete. I intend to build a house sometime in the next year and I'm looking for the cheapest way to do it and still have a sound house. I think aircrete is my solution. I've been watching honeydocarpentry, he's building a shed from it and has made some really effective aircrete and I'm just wondering if there is a better gas to use than raw air. Obviously oxygen would be bad. I'd like to see if using hydrogen would be a combustible product or if do to it's low density would it provide and easier spot for carbon to squeeze into and keep it sequestered away from the material. Or possibly helium. I don't know if using helium is economically viable. I really don't know anything about all of this so I love the fact that experts are on KZbin to explain as much as possible and provide their experiences. Can you give a guess as to what other gases in your aircrete might do? Is there one that might bond with co2 and keep it out of the mix?
@ElectricityTaster5 жыл бұрын
idea: make graphene out of CO2 then make rebar out of carbon nanotubes. Now, if only this were profitable.
@majjood024 жыл бұрын
simply amazing! I learned a lot from your videos!!
@adamr16375 жыл бұрын
What about lithium admixtures?
@TylerLey5 жыл бұрын
Adam, They are good for ASR but I have never seen them looked at for carbonation.
@colorsonparade60937 ай бұрын
Can’t I just add a calcium carbonate slurry onto my driveway every once in a while to stop this process?
@chrisrathbun41483 жыл бұрын
Why is my company putting CO2 back into the mix?
@YouGotTheCob4 жыл бұрын
dragon gave me a fucking heart attack man what the fuck
@ernestoestrada80924 жыл бұрын
How to made good concrete?
@ernestoestrada80924 жыл бұрын
40000psi 3000psi etc
@Jrez5 жыл бұрын
All I got from this was that concrete is basically Game of Thrones.
@bobyk872 жыл бұрын
So in the long term skyscrapers and modern concrete buildings are a scam.
@qaswedfr1234 Жыл бұрын
you forgot the H+ in the water
@stupidburp3 жыл бұрын
loud
@teslastones3 ай бұрын
No. Wrong Carbonation destroys OPC Carbonation makes the concrete stronger if you use the appropriate binder/cement
@asharuddeentharammal11315 жыл бұрын
awesome
@TylerLey5 жыл бұрын
Thanks!!!
@technosaurus38055 жыл бұрын
Alternative to "carbon cure" - use diet Sprite instead of water 😉... or just switch to fiberglass rebar already
@itsAttow5 жыл бұрын
0:51 see u later r.i.p
@edwardfoehring88275 жыл бұрын
Why do my chimney bricks spall ?
@khiemnguyenhuu84374 жыл бұрын
rip my ears @@
@32353235e5 жыл бұрын
More buffer, more flyash
@TylerLey5 жыл бұрын
Thanks for the comment. Actually, fly ash can make it worse. Fly ash consumes the calcium hydroxide to form CSH. This reduces the buffer but makes it harder for the carbon dioxide to enter. It depends on how much fly ash you use if it is worth it. More than 40% replacement is questionable.
@gary.richardson5 жыл бұрын
When I watched this video, it reminded me to ask what happens if a concrete mix is degassed (by vacuum) and then pressurized and air entrained with a specialty gas mix. For instance, injection with argon, krypton, nitrogen, or potentially some self healing reactive mix maybe. I know that temperature regulates how much oxygen is in water from learning about Aquaponics (a hybrid between Hydroponics and Aquaculture). And when thinking about these things, I try to find weaknesses to what I ask and possible counter actions. For instance, a more stable gas entrained may slow down or stabilize pH reduction but become a health hazard in confined or enclosed spaces if too much is permeated, unchecked into a death zone (perhaps due to design oversight to incorporate capture zones and proper work controls). So I ask, anyone, what insights, knowledge of case studies, or observations you may have to share. I find this "what if" interesting and appreciate whatever may be shared. Thank you
@davidgdmz45513 жыл бұрын
LoL, you geekin' out, yea sure all we gotta do is hire people w straws to blow you krypto gas into wet concrete. Go sweep a floor, you'll be a great janitor
@AgnesCongdon-xk8hr4 ай бұрын
Make up your mind.
@aymannassar69885 жыл бұрын
👍👍👍
@TylerLey5 жыл бұрын
thank you
@teslastones5 жыл бұрын
Once again-- only an issue with OPC. Invention of Portland cement was actually due to a search for a hydraulic cement ( all traditional cements available were C02 setting mechanisms ). As such, they get stronger as they absorb C02 as opposed to being degraded Several traditional cements have this attribute -- as well as having as much as a 92% less carbon footprint than OPC All concrete in America poured before 1875 was not OPC. The first load of Portland cement came into Boston harbor in 1875 The fact structures like the Erie Canal , Brooklyn bridge, etc were not OPC is why they have lasted so long Your remark about Geopolymer and carbonation is entirely erroneous
@zombiekiller_challenger_rt70575 жыл бұрын
I was enjoying your video until you began with the theatrics. I clicked away as soon as you performed the fire breathing dragon. Later
@Kobrag905 жыл бұрын
Someones grumpy. Fun proffessors are better than stogy ones.