Concrete is the secret weapon | Keynote for OSSEF
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- Опубліковано 29 бер 2021
- I think concrete is a secret weapon for humanity. I was asked to make a video for the Oklahoma State Science and Engineering Fair (OSSEF) in 2021 as a keynote speech. I talk about the things that drive me, some recent research from my lab, and how people can use their skills to solve Grand Challenges. I hope you have as much fun watching the video as I had making it!
My website is:
www.tylerley.com
If you would like to donate to my channel please visit
www.tylerley.com/giving
A huge thanks to Jessica Ley, my hero, for editing this video. - Наука та технологія
Thank goodness!!! You hadn’t made a video in such a long time I thought you’d given up on concrete and started up an asphalt channel 🤣
Even asphalt is concrete 🤣🤣
He is a professor - so probably got a lot of professor-y stuff to do (research, teaching ,etc.)
I am a NYC Union High Rise Concrete Carpenter, Local 212. We are actually some what of a new union, only about 6-7 years old. We mainly build pretty much any form that is used to make concrete walls, Beams, or floors that go into concrete reinforced buildings. So we work side by side with most Iron workers. Steel and concrete are are like bread and butter together. Now im not one of these guys making major decisions on tension and weight and wind speeds but i do get trained in using all the different types of concrete building/forming system's. I will say you are an amazing teacher. I actually am going to request that my teacher use your videos in class instead of some of these other youtube videos that are very out dated. Even though i am basically at the grunt level of the concrete field, i do love science and engineering. i like building stuff, working with my hands and planning. so thank you for the time and effort you put into your videos.
Ok, you mentioned that you want more suggestions for concrete subjects that you havent touched on yet. Hypertufa. Acrylic additives. Making concrete that is pliable to use like clay (for artists or otherwise). How long Bamboo, peat moss, coconut coir will last in concrete (indoors vs outdoors). What is the future for replacements of the USABLE sand? TY man, big fan.
I Love you, Tyler Ley! You are so awesome! Thank you for your encouraging words and concrete wisdom! ❤❤
Thanks so much for the comment and for watching! Take care!
Thanks for your encouragement on my journey.
One of my favorite things about concrete is how waste products from other human processes can be implemented in an economic way to improve it's effectiveness. For instance, cementitious materials like slag, cement kiln dust, and fly ash are all by-products that can be used for concrete admixtures. Plastic fibers seems like another good way to repurpose waste products and put them into something that we use. Concrete!
I work at a private storm water treatment company, and we put more concrete vaults in the ground than you can count. Concrete is pretty amazing. When the soil becomes too corrosive, we add about 20% flyash by weight to the mix to reduce expansion. It has negligible cost impact and will increase the lifespan of the concrete vault. It looks like these plastic fibers is something else for me to look into to help increase the vault lifespan. Great video!
Thank you for all you do. You have tought me so much
Thank you, it was really informative and full of motivation.
Been a long time! Welcome back.
Dear, Thank you for all you do. You have taught me so much
We always waiting for your videos ....
We love your informative speech and videos. Much much thanks for You prof ley
I am so so so glad to see you again,
Still waiting a 2 way slab design, 🤗🤗🤗🤗
Mr Ley, I’m a layman concrete person. Followed and learned a lot from your videos.
I find myself in unique situation of having recently bought some River bottom property out in Arizona. About 2-5% naturally occurring gypsum, might be a lil high.
Anyways currently making a 4” slab w type s lime in a 20/80 mix w the River bottom sand.
Have a kiln. Was wondering if you would be interested in sharing some of the findings for making a natural cement that’s green? Not looking for exposure, but to get the word out about concrete. Think you the man for that.
Otherwise great vids and content. Much appreciated
Hey Tyler! Good morning to you!
I have fell in love with your content. The pace is perfect for long term retention on the material!
I have a request. So I am actually creating a concrete staining business. The reason I have been watching your videos is because I really wanted to understand chemically what is going on with concrete when we pour it and how it reacts with the environment overtime and your videos have done a fantastic job! I feel much more intelligent on the topic.
You probably thought you were running out of topics to talk about with concrete but I have a few questions that may be could take you down a rabbit hole of content.
What I was wondering is if you could do some experiments and show videos of how the various different acid stains, acetone stains and penetrating dyes react with the concrete.
Maybe discuss some of the health effects on the concrete itself. I’m not starting my business for another three months or so, would be great to be able to fully answer any question that comes my way so hopefully you’re not too busy!
Thanks a bunch!
What's your take on the recent condo collapse in Surfside FL?
Awesome Doc! You got it right.
I love all of your videos a lots of info, please I had a question what's the difference between deflect wire and debound it?
Awesome Professor
Thanks for the passion and enthusiasm you put into this video and your work! I have a question for you. I am an undergraduate ecology researcher, and a question of increasing concern in my field is the negative downstream environmental effects of microplastics. Road wear from tires is a big driver of this problem, as material is sloughed off due to friction with the road when cars drive. Wouldn’t plastic-reinforced concrete exhibit the same problem, even if the plastic is used in small amounts? In my mind, it seems inevitable that regular wear and tear on concrete containing plastic would leak plastics into ecosystems.
I love your passion! I love concrete now also!
missed your livestreams, wish you can do them again.
Awesome - Great Chat.
Hello from Lebanon ~ACI Spr Conv 2021
Please do a video on shotcrete/sprayed concrete/high-accelerator concrete some time!
Would love to hear your thoughts on the tower collapse in Florida.
Tyler's mortal enemy is whoever calls Steel the secret weapon.
Great content and research. One thing you forgot on your list and is a worthy study is aircrete! Please make a video on how to make lightweight, Thin panels using aircrete for weight reduction. What polymers or binders, GFRC product, latex binder etc. Would you use to get back the strength lost to using aircrete? I'm not hearing any chatter about aircrete even being considered. Please discuss the aircrete vs binder dilemma.
Every kid should hear these words. Wish I had.
Love you passion.
Dunno who to ask this sort of question, but this channel might be a decent starting point. Is there any way to accelerate the aging process of concrete for research purposes? As in, if I wanted to experiment with mixes, reinforcements, corrosion resistance, etc. do I have to wait 50 years before I can analyze failures, or is there some way to get an answer in a month to a year? Something beyond just using a press to test compressive & tensile strength.
Tyler, I wonder if you could comment or possibly produce a video on the recent building collapse in Miami, Florida. I realize it's a little too early to know the exact cause but I wonder if you could enlighten us on how the forensic engineering procedure would be performed (1st, 2nd , 3rd or A through Z on how a investigation like this would be performed ).
Hope all is well in Oklahoma, thanks 🏗👍.
hello tyler. i enjoy your channel. i would appreciate your input on a question. I have a fieldstone and mortar house in louisville KY. i have problems with humidity(minimal overhangs) in the house.. I bought a silane sealer that you recommended sx5000wb that is for concrete and masonry. my question is would a whitewash of lime and water applied to the walls reduce moisture intrusion by sealing cracks and pores in the stone and mortar? i plan to use the sx5000wb on the front(north) but i think the whitewash might lower solar gain on the back(south facing)...any ideas? thanks
Would really like to hear your thoughts on the surf side disaster down here in South Florida
Concrete and the industry are lucky to have you mate. Can't see how concrete can ever be labelled sustainable though. (Don't think "more sustainable" cuts it)
Good job
As concrete is one of the biggest polluters, I've heard something like 10% of carbon dioxide emissions worldwide, between hauling and even the curing process releases gas. Have you made a video about add mixtures using graphene to strengthen and in turn lessen the amount of concrete being used? I brought this up in a room with 3000 carpenters 2 years ago at a union meeting in Las Vegas, and nobody had a clue what I was talking about. We need to make some drastic changes in all industries to save the climate
OMG!!! I’ve been a long time follower and just so happen to move to OKC. I totally forgot you’re here. Can we meet and talk about concrete? Let’s see who’s more crazier about concrete?
Yes. New video.
I did get a tip about a book named "ILLUSTRATED HISTORY OF CEMENT AND CONCRETE". I don't know much about it though, so maybe make a review of it?
Good Day Sir! I would like to ask if the compressive strength of the Recycled Concrete Aggregate matters when incorporating it in concrete?Thank you in advance
Master Mr. Tyler Ley, i hav a problem and i am planning this solution if possible and if okay too, my columns have plenty of honeycomb and thinking to use the same cement and water and some aggregates to fill and patch those voids, is it good to use? as long as im going to clean very well those concrete before filling? please give advice. Thanks
Do you have any videos on the effects of moss on concrete?
can you discuss roller compacted concrete?
Hello Tyler, Recently a volumetric mixer has been running into a false set issue during recent pours. Is there a best way to eliminate the false set. I've found a water mixture aditive, any other advice? Thanks, have a great day.
This made concrete fun
Tyler, I'm wondering if you plan to do a video pertaining to the tragedy in Miami?
I realize that you're not on site there but your observations would be interesting.
ditto
Make a detailed video on future of BIM.
I've used concrete with the fibers before I gess it was a ezy to adjust to and was a improvement for the product I like cement it can be added to many things to make them more stable . You left out injection of carbon to concrete for a newtral carbon footprint or possibly better yes I have been paying attention .
Hi Tyler concrete has a lot of strength and weaknesses any chance you can do a video on concrete in harsh environments like tunnels under the ocean or bomb shelters. Water and salts seem to be a big issue for concrete how do they deal with it for example in the the ryfast tunnel.
When will you talk about the FL condo collapse? It seems to be a number of factors that caused a huge catastrophe. Looks like they used less rebar than the drawings showed and they ignored maintenance problems for too long.
Hi what is your opinion on using recycled crushed concrete in place of the usual aggregate
Cheer Steve U.K
can you post a video regarding Miami building collapse?
Mr. Tyler a tutorial on concrete weight plates for weightlifting would be amazing if you did one.
For like athletic weightlifting? Iron would probably be longer lasting for a purpose like that with plate weights. Concrete is hard, but brittle, so it is more likely to crack or chip if not handled correctly. Plate weights tend to see a fair amount of rough use over their serviceable lifetime. Iron is also a denser material, so to achieve the same weight from concrete would require a larger volume. There might be an argument for use if there were chains that were attached to concrete cannonball weights or something like that and I'm sure there could be a proper way to implement them in weight training, but honestly you could just use boulders at that point. In summary, concrete used for weight plates is not the best material for this purpose since iron is a denser, heavier material (better for weights) that is more ductile (less likely to crack) while concrete in this sense would not be playing to it's greatest advantages, like high compressive strength and heat resistance.
@@smokncho77 I agree with you 100% but iron weights are extremely expensive right now because of the pandemic. Concrete will Chip or crack if handled roughly for sure. I made some concrete plates (17 inch diameter 6,5 cm thickness) which hold really good. I have reinforced them with wire mesh and fibers
@@dimitris8575 Okay, cool. Price point is definitely a benefit of concrete over iron
This would be awesome! I attempted concrete dumbbells this winter because of the shortages brought on by covid. I had tons of old bricks on hand and wanted to crush them and screen them for aggregate. I studied the Tarantula Curve through Tyler's videos to try to get the mix right. Super fun project, would love to see anything showing a good way to make weights.
@@tricks4trades795 Believe it or not there are molds Beeing sold right now for making concrete Olympic weight plates! Check the video from stix and stones or caveman weights and see how they make them. I made them though using an oven pan as a mold which was exactly in the dimension I wanted .
I like it.
You have any information on basalt fibers?
Cool! Where to buy plastic fibers for home concrete projects?
There might be ways to make them yourself from plastic waste products like old plastic sacs or things like that.
I miss my Radio Shack electronic science kits!! Apparently my free Battery of The Month card is no longer valid. 🤪
Love that Breath of the Wild thumbnail!
I think concrete is your secret weapon. It was really amazing.
Hi Tyler, I am intrigued by this helix-shaped micro steel strips product which is being used as a fibre additive. It claims to significantly improve resilience to cracking and can partially replace the usage of traditional rebar. It would be great if you can make a video on it to explain it, talk about the pros and cons, and perhaps even do some testing.
I want to do the robot side. Already working on it. Yer not getting me as a student because I am 49 and I already have a career.... that I would like to switch for making concrete printing crawlers. Or cob, or hempcrete. Depends on the project. If you would like help, let me know. Me and my Unimog and excavator and 3D printers would love to help. And let's make molds for waste concrete that make solar thermal reflectors!
He had a bat in the cave
i
Would it be possible to make concrete last for 500, 1000 or even 10000 years? And how would one do it?
That's a good question. Sounds like a possible grand challenge for engineering!
The great pyramids were poured and casted in place
@@tl9819 That's amazing. For the longest time it was believed that they were made of cut blocks of limestone.
Tyler. The answer is Hemp Hurd and Hemp Fiber. The supply chain is here. I am working on a new family of GeoPolymers. We will be 3D printing homes with GeoPolymers starting this year. I need to send you samples of Micronized Hurd. Please let me know if you're interested? My phone number is on my website.
How can the carbon footprint of concete reduced?
It is kinda green because it last so long. Look at the Hoover dam, it’s almost 100 years old and still happily holding back water and generating electricity.
I believe he did do a video about the carbon footprint of concrete though.
It will inevitably crack, then what? Dig it up? Hmmm
NO Gold !!!
Pantheon?
rebar was added so they could use inferior concrete . The Romans did not use rebar [iron] in their concrete . Remember if it lasts 100 years that is work missed. All too often I see concrete projects end and the next year they are repairing it from decay .
Personally I would not have quoted a scammer .
Me trying to figure out how zelda relates to the video
uuhh, i have an idea, not sure if is new, but, is radical, let me send it by mail, no copycat wanted
I think the channel would be better off if you had some teaching lectures on it
He does, look at his full channel.
booger.
Make a video about what happened down in Miami hurry up Or ill unsubscribe from your channel. 💥💥💥💥🚨