Thank you Tyler I'm 68yrs old retired I wish videos like this were available when I was active. It took years to learn what you present in minutes

I have a driveway that is 30ft wide and 32 foot long. We placed a 6 bag mix with soft fiber and a little over 5in thick. After 32 years no cracks just some top spaling near the road from salt. I have parked trucks with over 60k loads over night on it. I do seal it every two years or so with solvent based sealer. Love fiber.

Caution: rebar sold at many home centers like Lowes ,Home Depot are poor quality not 60ksi not ductile and crack like pencil when bent into hooks etc. Do NOT use in critical structural elements like beams or columns etc Now I see fiberglass rebars there. Obviously cannot be bent or welded . I have complained to Manager and sent a load back to store recently. Ask merchant for paperwork where rebar came from and its certificate of quality strength. We have been using fiber additive on floors walks for decades now. Can affect surface finish if to much added. Excellent channel Thank you 👍

I interrupted doing my taxes thinking "what is new in fiber reinforced concrete?", typed "fiber reinforced concrete" into the KZfaq search box, set to sort by upload date. New Tyler Ley video?!? No way! 1:38AM joy!

Another good video. What we teach will go on long after we are gone. I used fibers in grout many years ago. It worked very well for leveling. Boys have to play so, I made some concrete balls out of leftovers. They were very tough. Good Luck, Rick

Thank you so much for your videos Tyler! I'm not a professional but an interested lay person and I just love the info you share. Thank you!

Thanks Tyler, I was considering fibre for our 3” layer of SCC on top of our precast floor panels with in-floor heating in our housing project, now it’s settled. BTW, our new Super Air Metre just showed up. What a no-brainer. Thanks man!

Even my wife and kids understand fibers now, another well explained video, Tyler!

Hi Tyler, thank you for taking the time to make this channel. I’ve been binge listening to it on my way to work for the last 2 weeks. I’ve worked on the producer side for the last 10 years. I am eager to learn more about the technical side and wanted to know if you have any tips or links for locating educational material? Thanks in advance.

Thanks for the video! I'd like to see a video about options to increase the flexural strength of concrete, and situations where additional flexural strength would be helpful.

Adding fibers is the way to go. Although, I did walk across a new DG parking lot last week, and it looked like a fox got into the chicken house - feathers (in this case, fibers) were everywhere! Yeah... not the best finish work. Love your videos and the work you do, Dr. Ley!

Love your videos! I’m new in concrete but very keen on the use of add mixtures that are not chemicals in order to control uprisings costs. If I were to use hemp fiber as my reinforcement’s for a slip form operation would it be advisable to pre soak the hemp fibers with the water prior to mixing the wet and dry ingredients to avoid hemp from trapping in oxygen? Thanks in advance

Thanks a lot! Great info really! A question pop out of my head watching the video. So both rebar and fiber dont stop the crack (from load) from forming? I mean the concrete cracks first and the load is transfer into rebars and fiber?

Hello Dr. Tyler! I'm really a fan of you. Please make a video discussing the aggregate size effect on concrete strength. Take love❤

Very nice info sir, is possible kindly make a detailing video about colloidal silica used in concrete & nano silica hydro gel for repairing purpose of concrete surface.

Great cement. Portland. but seems to have a few unanswered questions. Thank you.

Mr. Ley can you do a video on glass fiber reinforced polymer bar? I've seen them in the market for some years now (never on an actual job though). But not long ago I got an email from ACI about a seminar of a new spec on how to design with this type of reinforcing, sadly I didn't take it. Thank yoy for your videos!

Thanks Tyler. I like your energetic video. Having said about fibers what type of concrete mix design will help reduce or even better stop the surface of the fiber reinforced slab becoming a hairy monster? Should I have add more slump? Should I add more water reducer or plasticizer?

Respected Mr. Ley , please make a detailed video on ways and means to avoid "agglomeration" i.e. "ball formation" of plastic based fibers during mixing of concrete ingredients especially by manual methods. 🙏👍👷

Great video 👍🏽 How much fiber I would put in a 5sand 1 cement mix Thank u

We just bought this concrete cleaner called Mud Slide from Zepps. It strips everything except what you dont want it to. It is really neat stuff. My boss asked me to pick your brain about it and he would give me a tee-shirt. So my question is what is it in the cleaner that goes after only the concrete and turns it to sludge and does not peel paint, rubber, plastics, etc. and why?

There are also cellulosic fibers which are mitigating the plastic shrinkage cracking dramatically and are comparable to micro synthetic fibers in terms of efficiency and cost.

Could you do a video on autoclaved aerated concrete (AAC & ALC)?

Great show. A few years back you did a demo on cheap hardware 'rebar' that is only a bunch of fibers contained in a plastic tube, that is essentially useless for bearing any loads. But, your episode today got me wondering again: what about braided hemp rope as concrete reinforcement, that is, lengths of hemp rope as a replacement for rebar, in patios and driveways? While there's lots about 'hempcrete' these days as an insulated building material, there isn't anything I can find on the 'net about lengths of hemp rope, itself, used as reinforcement.

Hi Tyler, thanks a lot for this content, it is useful. I am designing a concrete mix for the foundation/anchor of an ingound basketball hoop. I found some nice, coarse aggregates (ready mix with 0-4mm sand and 4-16mm gravel) and selected a 52.5 strength CEM II cement. There will be 4 rebars in that foundation once I pour the concrete. To get a higher psi/Mpa value I am thinking about a superplastifier + steel macrofibers. Will I get any real benefit, or is all of this only good for slabs?

Any suggestion on how to fix a pier which cracked due to efflorescence and how to avoid for future robustness

Question Tyler. Essential Craftsman had a video on poured walls where in the form he had nailed thin strips of wood to give the concrete a weakened plane joint to crack. Seemed to make sense to me. Since it was a wall and not a slab, this provided the same as cutting concrete I guess. "Forming Concrete Walls: Ep.17" (about 9 minute mark) Is it a practice or practical to do the same with slabs?

In the residential concrete exterior concrete we only use polypropylene monofilament fibers due to best final finish, my understanding is this is for plastic shrinkage only and really doesn’t do much for preventing larger cracks? We typically use rebar 3’oc or 6x6 10ga welded wire and if customers want fiber it would be in addition to the steel reinforcing and extra $$. For me I’m more inclined to use fiber on a hot sunny day otherwise mainly just steel in most cases. Your vid has me thinking I need both Thoughts?

Is it a good idea to use FRP rebars also with macro fibers

I use both fiber and steel with top and bottom reinforcing. Overkill always works.

Tyler, I have some questions regarding FRC and more specifically SFRC and even more specifically Hybrid ECC using PVA and Helix or HiperFiber or one of the Dramix varieties. Finally, If we use the FEMA P-320 March 2021 eidtion and the October sample plan revision... Can we use Hybrid ECC with Helix and PVA to replace all the rebar.... if not, how much rebar do we need to retain to meet the CLP requirements and the suspended concrete roof requirements?

Pound for pound, fibers are stronger than steel. The difference is you cannot add the poundage of fibers necessary to carry heavy loads because the mix would become saturated with fibers to the point of strength reduction. Conversely, because steel is built in the forms, essentially outside of the mix, you add whatever amount necessary to carry loads.

I am experimenting in creating concrete building blocks containing used bottles for all their great properties. Can I use hemp or bamboo fibers rather than plastic or steel? what are their disadvantages ?

Thanks, Tyler. Would it be possible to spec a mixture of concrete with: • basalt micro fibers • helix steel macro fibers • Wood ash for waterproofing • Zypex additive to fill in eventual micro fractures in the presence of moisture Do people spec out an exact concrete mixture with multiple additives like this? If so, does it need to be signed off by a structural engineer before used to build a residence?

I have a WW2, 11 cuft mixer and I need to know how to air entrain at home and how does that affect water reducer and why are the fibers for reinforcement so short? shouldn't they be 2" long at least?

I'm planning to do a concrete slab project using Quikrete Crack Resistant Concrete, which has the fibers in it. What do you think about adding an Acrylic Fortifier to this concrete, to further increase the crack and water resistance? I searched through all of your videos and I don't see a single mention of Acrylic fortifiers! So, I'm guessing you don't think much of them? But they do definitely work at the small particle level with grouts and mortars to hold them together, and I like the idea of reducing water penetration into this concrete slab also. So, what are your thoughts about Acrylic fortifiers for concrete? Also, what about adding a water reducer to this mix, to further increase the strength of this concrete slab? Will that work with the acrylic fortifier or will they conflict? You didn't really go into which of the water reducers you though worked best, or name any names, but I was looking at polycarboxylic ether, sold as Melflux 2651 F. Love your videos and expertise, but I do wish you get could get more specific about the names of these products. I know it's different for homeowners going to Lowes and Home Depot as to what is available, but it would really help!

Hi! Can you please explain why there are basalt and plastic and fiberglass fibers, and what the differences are? Are some stronger or more/less elastic or cheaper or all of the above? Are the small elastic fibers primarily used to avoid the small surface cracking as you've described in this video or are they popular in other applications? And would the other applications be served better with bigger and/or stiffer fibers? Thank you!

hey tyler, your nephew sam told me you were like THE concrete sommelier. Turns out you know a lot of about concrete

Hi Dr. Tyler, how about graphene oxide for concrete reinforcement. Do you have any experience or studies you could post on your chanel? Thank you

Few questions regarding fibers. Is there a significant effect of vibrating concrete on the fiber orientation? Does macroplastic fibers creep over time under load? Thanks

How about CONTROLLED positioning and orientation of fibers?

This is very interesting, I am making a 6” deep footing around the edge of a greenhouse, and I will use fibres in the concrete. Incidentally the background music is annoying and distracting. If you must use it, please have it much quieter.

What about recycling? How do you get them out of the concrete if it gets broken in a crusher?

do synthetic fibers decay over time? (like many decades?)

Add SBR to the Concrete Mix💪

Galvanized rebar ? Offset layers of four inch cross welded galvanized animal fencing! Galvanized nails? Different sizes... Could this make an expensive but super concrete?

So basically the job of a rebar is take all the tension after concrete fails so it means before failing of concrete the rebar is doing nothing, Right ?

Please make a video about fondag concrete!

And what is the meaning of "small cracks" ? If there is a crack it means concrete is already failed and now rebars are resisting the structure from collapsing

Why don't we use very long strands of aligned fiber instead of rebar?

Is this not simply a case of the construction world including engineers being so terribly conservative and opposed to change? Rebar constructions also fail due to construction errors.

👍Hello concrete freaks and maniacs ✌

What about using galvanized nails. Surely would be expensive. Could it make a super concrete?

why not both? EDIT: yet again I didn't watch to the end :D

" M " to mute Consider working on kids Television ? Most adults dislike people shouting at cameras on here.

I work for a manufacturer of steel fibers. The highest performing steel fibers in the world. I am a PE. If you want to talk / have questions let me know. This account is my side hustle business but if you have an email I can email you from my work email.