Видео

Calm down ..

Thanks

Hey great info. What would you do for a Barndominium concrete slab where half the building will be habitable and concrete will be polished with underfloor heating and the other half will be garage/workshop.

Onto something (suspicious)

helpful, where do i buy concrete fiber?

One thing I like about your videos you don’t talk down to others for not yet understanding, like a kid is never mocked or ridiculed for not knowing the answer to something it makes you feel good to admit ignorance. Also very scientific, like what’s actually going on and the processes involved if we look inside the cement with a microscope? Because those little shapes low and behold are holding the whole thing together large aggregate down to the micro particles like a fractal pattern. You make learning exciting honestly while being technical yet fitting for beginners. Really well blended personality holds strong like a good concrete mix! Rock on brother B)

Your explanation has greatly simplified the concept. Thank you! It clarified why fly ash performs well in some research papers but proves ineffective during testing.

Informative! Thanks for sharing. Can you make a video on carbonation technologies? E.g., carbonation curing, accelerated carbonation, carbonation mixing, mineral carbonation

Thank you very much for sharing your ideas.

How about C-Crete Technologies strategy?

trim your nose hairs.

Bravo

This a great video and I learned a lot we just had a new porch patio poured and I wanted to learn more about the sealer they used.

Is the fiber reinforced Quikcrete pretty good? Or do we have to add in our own fibers?

I'm just curious how this would work for wet curing. Lets say I build out a small slab for a resident client and I use burlap and plastic for the curing. Would I then ask the homeowner to keep watering the slab or would I have to keep driving back and watering it to keep it damp? lol

Dr Ley, love your outreach and insights. When designing mooring systems for large bulk Carriers/container ships I always approached the problem by the kinetic energy and then energy absorption through deformation. You may have been simplifying for the general audience. BTW The reactive forces get very large. The slow 10 mph you describe would be very fast considered an aberrant landing that would be rare and you were going to destroy something, try to do it in a semi controlled repairable way. Typical landing would be closer to 2 mph. Besides the obvious structural solutions of carefully designed sacrificial energy absorbing structures I think the overseers need to carefully consider mandatory tug assist and reduced speed limits inside these harbors. Oil tankers with tug assist out of prince william sound have virtually eliminated the problem of running aground.

No rebar? No fn way. Who’s gonna pay out on that law suit. Carbon footprint ain’t worth ship if your repairing failed slabs.

Ok Tyler, do a Long term study on wear comparison of concrete that has been repaired during installation, either a boot step or tire track, and regular untouched area free of disruptions. Also has there ever been a study of durability between equal tests of concrete during different moon fazes, be it full moon vs less moon?? Would it make a difference to the moisture content?

PLEASE, Kill the music, it's hard to hear what you're saying! Thanks

Nicely done! 🤝

Internal curing (a new one) with porous wet rock: this may be the modern equivalent of the age old masonry technique of submerging the bricks or other materials in water before application. Bricks are a porous, masonry sponges of sorts. I soak all and any brick or rocks that I mortar... So I may be on to something.

Respected Sir, The site leading from the link, is not working. i entered my email address but nothing happened.

Wow! Second click you on (same subject) and you cleaned your nostrils... Well done and will now listen :)

Oh and where the "eff" is the reference to the student

Don't mean to be a bitch BUT... from the start of your interesting video... CLEAN YOUR NOSTRILS! Seriously my friend, hard to take you seriously, with your long winded narrative... You started me with me the image of HUGE DIRTY/HAIRY NOSTRILS. Sadly all your facts are so hard to hear

Wouldn't having the concreate be as cheap as possible and last as long as possible be the most green? If you have a better mousetrap then you don't need to label it "green" to sell it.

Geopolymer, if applicable (gotta test). If not, CEM III/B.

Great video Tyler! Have you've done any work with graphene yet? I was wondering if you need to pump concrete if using graphene can reduce the amount of paste.

Thanks for highlighting our MEGASLAB work, Dr. Ley! 👏👏👏

Maybe try adding some chromium oxide?

Who wouldn't want to make the world a better place & make awesome concrete ??!

Unfortunately, I think this project will increase the total CO2 emissions - the total CO2 emission will increase. Reason is, now people will save a lot on their concrete work, and concrete will be more competitive, and people will use even more concrete. So when we only look at the emissions, they will increase. We see this with cars too. Cars are using less fuel than they used 10 years ago, and many are now electric. Still, the oil consumption has globally increased with 10%, from 90 million barrels a day to 100 million barrel a day.

If you feel good about these things, have in mind, China is burning 4.2 billion tons of coal each year, and increasing fast. India is burning 1 billion ton, and increasing even faster. So what is the point really, that we are saving a few million tons of CO2? Not much, not much at all.

Reduce carbon footprint?? GOOD LUCK 🤡 😂

We have no CO2 problem whatsoever. The ocean will eat all surplus CO2 like a piece of cake. The CO2 doom they are preaching is pure fantasy and fear porn. We have no CO2 problem whatsoever, not at all, not the slightest.

I want the best concrete, not climate chang cult BS

Is flatness (or flakiness) ratio not the mean (middle) dimension divided by the smallest. Elongation is the max divided by the mean. I don't think there's a ratio of max divided by smallest?

Thanks for the video 👍

First up, tried explaining this to my sister a green ministers aide....oh that's too hard.

Asphalt per ton CO? Parking lots roads etc mostly asphalt. Subslab soil compaction is critical no clay organics . This will allow reduction in slab thickness without subsidence. Many foolishly skimp on proper floor slab soil and compaction. Meanwhile China ,India etc total disregard for environmental laws.. Do you have any data on using Beach sand coquina as aggregate ? We do sea walls in Bahamas and not much approved sand gravel . Large mass walls docks i want to try fiberglass fibermesh and fiberglass rebar in salt water marine applications.

Hi

Thank you Tyler - Question for you - I have some exterior decorative concrete (various colored topical glass) where ASR is going to require me to replace panels, but others that have not reacted much yet. Is there a sealer (Silane?) I can use on the existing panels to prevent ASR on these existing panels not yet reacting?

Do you recommend plastic on an outdoor driveway slab?

Citicorp was, is and will always be a shady ass corporation. What they should have done is written a check and hired her 🤬🤬🤬🤬

LMFAO, Concrete has more than one ingredient you know there are several things that go into making it and when you add water it starts the processes by activating the ingredients and it starts to "go off" or harden, the dry pour method will never setup or bond well. It will cost you lots of money in the end. I would NEVER waste my time or money doing this stupid dry pour method, Yes there is NO place for dry pour and will never work or last as long as you think. Good luck with that lazy way.

Lady is a legend

I love the excitement for concrete lol, great energy!

Dear Dr. I have question about footing dowels, if the building is a high-rise building ( like 30 stories) then the footing dowel length is governed by tension development length rather than compression development length (ACI 318-19 Section 25.4 ). That's because of overturning moment from lateral loads is governing the design over gravity dead load. Do you agree? I think so because ACI 318-19/ 18.13.2.2 "Longitudinal reinforcement of columns and structural walls resisting forces induced by earthquake effects shall extend into the footing, mat, or pile cap, and shall be fully developed for tension at the interface."

What about cold galv? , dust coat

What happened? CORRUPTION = POLITICIANS + MONEY. MR ENGINEER, FOLLOW THE MONEY!