Check this video out where I did tested dry pour concrete kzbin.info/www/bejne/j4GkfK2oq5hsrq8 Warning! The results are surprising.
@nathanwforrest11 ай бұрын
This has to become an Oklahoma State research project. We need slabs to core and beams (reinforced and unreinforced) to break to see how it compares to standard concrete mixed per the manufacturer - this could be a whole series that either debunks the practice or identifies some best practices and recommends where to use it.
@TylerLey11 ай бұрын
We are on it! Keep thining about what you want us to look at!
@VenturaIT5 ай бұрын
You could easily spend more time mixing up the dry mix beforehand as well to improve the recipe. I think the curing process will be a big deal for dry pour, if you water cure for 1 month or not.
@oldtimefarmboy6174 ай бұрын
@@VenturaIT Dry poor concrete is strictly for lightweights. There is no way you can get enough water into the mix to properly cure the mix to make concrete of any strength. Brownie is an appropriate description of what you get with dry pored concrete since it is about as strong as a dried out brownie.
@marknussbaum83944 ай бұрын
I've placed concrete with traditional and dry pour methods. I think dry pour has its place in a few scenarios, but those few scenarios cover quite a bit of the applicability of concrete around residential houses. Dry pour is so much cheaper for typical slabs, coming in at about 30% of concrete contractor bids and it's taking off because homeowners are being priced out of simple projects by today's wet pour prices. Some dry pour test ideas are: -Strength tests using quality methods that provide unbiased results for typical 4" to 6" flat pours. -Can the mix be compacted during placement, and is that a benefit? Anecdotally I've noticed that we can compact dry pour mix with foot traffic during placement. My gut tells me that's likely a beneficial action but a test would indicate whether there's an actual benefit. -What is the adherence of dry-poured concrete to reinforcement steel as compared to wet pour? Is it adequate? An aside on steel, I think dry-pour concreters do a far better job at centering rebar in a flat pour. Nearly all residential pours have "hooked-up" rebar or mesh, and that's of little or no use. Placing steel in dry pour is amazingly simple, and you don't need chairs and almost no wire tying. You place half of the dry mix, smooth the surface, place one direction of steel, seat it in the dry mix with foot traffic during placing, place the other direction and apply more dry mix to hold it, and nothing moves. No wire, no chairs, no tying labor. -Installers can perform limited but noticeable compaction to the dry pour during placement using common foot traffic. Does material compaction make a difference? -How do dry pours perform in freeze-thaw tests? Does dry pour need a permanent sealer applied to it? -Is it better to begin misting dry pour just after sunset and water through the night? (I haven't figured out how to cover the dry pour during initial misting without marking the surface) -Is use of a mortar mix as a thin layer of surface ok, or does it create a potential spalling layer? -Is there a practical method to create a smoother, more polished surface than what is achieved by the paint roller finish method? -What is the practical limit of dry-pour slab depth? If a person is pouring a 4" slab but wants a footing (8", 10", etc.) around the perimeter, can this reasonably be achieved? Does thickness of the slab affect final strength when using typical dry pour wetting methods? Thanks!
@Doomzdayxx2 ай бұрын
Your questions have been answered in several videos. Dry pour is an inferior product in every single way to mixing as intended. It does have a few benefits though. -Very easy. NO MIXING. Just water/mist periodically. -"Good enough" for many small little residential tasks (especially if selling the house soon) -Fence posts. Since it bonds poorly to the metal or wood, and breaks away so much easier, BUT still does hold "good enough", it's ideal for when the time comes to replace rotten fence posts.
@anthonybanks49585 күн бұрын
Thanks, you brought up some interesting points about the "disadvantages". I'm simply looking to put slab for my 4 trash cans & then a slab for a storage shed.
@dsamh11 ай бұрын
I have never nor really plan to pour concrete. But I love your channel for the practical science and the deep knowledge of the subject.
@TylerLey10 ай бұрын
Thank you!
@ZergZfTw11 ай бұрын
This seems closer to the super dry mixtures used for roller compacted concrete, or dry pack used under a lot of tile jobs. It would be interesting to see if you could densify it with some type of roller or a vibrating compactor.
@TylerLey11 ай бұрын
That is a good idea. We will see what we can do!
@MrEric_API11 ай бұрын
I've used dry mix concrete technique for femce and gste posts for decades...... my technique includes wetting the adjacent dirt well prior to dumping in the bagged concrete. My train of thought is that the concrete wants water, and I want good concrete. So i provide starter water in wetting the dirt that is gong to come in contact. MrEric
@Doomzdayxx2 ай бұрын
Yeah, dry mix is actually better than wet mix for fence posts. It doesn't bond to the post as good in dry mix, making post removal easier.
@ajosephbaumhauer40716 ай бұрын
I saw you on a Sunday Morning segment today and I am waiting on delivery of 24 bags of concrete to pour a 4X8 slab in front of a French door. I have done a fair share of concrete for a DIY er and I spent time in construction but I am 77 now and this job is in a resort town where it’s difficult to get people and its expensive. I agonized over this and finally decided to give it a try. I feel much more confident after your video please do more research. I have more projects.
@nonchalant1596 ай бұрын
Your going to need 56 bags of concrete for 4x8x4 slab. For a 3in slab you will need 42 bags.Just saying. I done this before and its very rewarding!!
@lrayvick3 ай бұрын
@@nonchalant159 simple math assuming a 4 inch thich slab: 4x8x4/12 i.e. 4x8x0.33 = 10.66 cu ft. Using a 60 # bag which is about 0.45 cu ft you divide 10.66 by 0.45 = 23.7 bags. So buy maybe 27 bags.
@wilmue491411 ай бұрын
Dr. Ley- Thanks for finally dipping your toe into "dry pour" concrete. I understand your biases lean toward commercially processed concrete, but you made several critical assertions of dry pour in this video that should be fully tested to confirm. I refer to your remark that dry pour will not achieve similar performance to wet pour, I infer your contention is related a less homogenous mix with dry relative to wet process. I think, however; we all would agree that overwatered wet pour, mixed "in the wild", underperforms , probably due to large aggregate migration "to the bottom" of the pour. The "curing" of cement + aggregate into concrete is a chemical process, it requires "adequate" hydration to proceed to full "cure" at about 30 days under normal circumstances. The "Cajun Country" hydration regimen is not scientifically derived, it empirically seeks to stabilize the slab "top crust" and hydrate the slab for cure promotion. It could probably be simplified into a 2 step process; first, crust stabilization could probably be achieved with 2 mistings at 10-15 minutes apart, and second, the timing of hydration soaking is less relevant, as long as the top of the slab stays moist or wet the slab will hydrate quickly (see video from renetto for visual evidence). You refence "air voids" as a problem in dry pour, but if you might research a quantity of dry pour videos, you will find people have addressed this issue by, for instance, impacting the dry forms with a rubber mallet prior to or after screeding and before wetting, yet another ingenious fellow attached a palm sander to the screed board attempting to achieve a smoother surface. This is probably adequate for small projects up to 4'x4', I would guess. Your critique of dry pour lacking "air entrainment" for freeze/thaw protection warrants merit, but where do "air voids" end and "air entrainment" begin. As I peruse the comments attached to this video, I am struck by the high percent of commenters requesting "testing" of dry versus wet pour methods. The the video testing of dry vs wet here on KZbin is not scientific, and often "tests" concrete that is not yet fully cured with methods that are "empiric" but not "quantifiable". Since you have access to the required lab equipment, might I suggest the following tests. It would be most helpful to the DIY community to know how dry and wet pours compare with regards to cure time, final strength, and density (permeability). At a minimum; a comparison of dry pour versus wet pour with big box bagged dry concrete mix at 3,7, and 30 day interval testing, a bonus would be to add samples of commercial mix (from truck or yard) with similar specs. Your assessment of the final quality (compressive strength, density, and air entrainment) of concrete produced by each method would be highly valued by all who follow this channel. Afterthought: perhaps you might run a few samples of concrete prepared with both PLC and straight Portland to see which might be a better choice for the small batch DIYer who might seek to add fiber to a bag mix or self mix with a small portable mixer, and still dry pour a small slab. We appreciate your efforts and insights!
@Doomzdayxx2 ай бұрын
In the united States (probably in Canada too)No structural engineer, city/city/federal inspector, etc. would EVER sign off on "dry pour" for anything remotely important... If that isn't enough proof that there is a big difference in quality, then I don't know how to help you....
@michaelpettit126311 ай бұрын
You've got students who need term paper projects. Pour 5 concrete slabettes using this method and another 5 with the regular method. Maybe do a set with rebar, another with fibers. Maybe one 4" deep and another 6" deep. Then cut them into 12" strips. Do a visual exam for uniformity, do a dye test from both top and bottom, do a compression break test and do a tension break test. Having just these empirical numbers will help me understand if this is appropriate for anything but decorative concrete. Then have your students publish and present that paper at ACI. Fame and experience for everyone.
@TylerLey11 ай бұрын
Thanks! These are good ideas!!! Watch for a future video over this.
@ro.stan.411511 ай бұрын
Excelent video. Objective and rational. Great summary of pros and cons. Now the testing can start.
@DoomzdayxxАй бұрын
No more testing necessary. We already know that premixing is superior, yet dry mixing does have acceptable applications.
@fargley00111 ай бұрын
Very kind delivery. So this method is not to be used for structural concrete, but has its place.
@TylerLey11 ай бұрын
Yes!
@brentr129911 ай бұрын
I recently placed a 14'x6' slab as an extension for an outdoor kitchen using the dry pour method. My yard slopes quite a bit and ended up using 87 60lb bags. I compacted the bottom half, added rebar, then filled almost to the top of the forms with the concrete mix, compacted again, then topped with just a sand mix. Way overthought it! Compacting and adding more on top made the layers not bond to each other as good, so I had some areas of delamination on the top with a couple of ugly holes opening up just using pressure from a water hose. This morning I ground off the loose material from the top and tomorrow will patch the holes with CementAll, then put a layer of NewCrete over the entire surface. But I could be overthinking this, too. My next project will be mixed using portland cement and supersacks of fine and coarse aggregates along with a superplasticizer/retardant additive. No more dry pour for me. Great to see this and your other videos. If I wasn't so old and lived so far away, I'd love to sit through some of your classes at OSU.
@TylerLey11 ай бұрын
Thank you for the comments! Sorry to hear you didn't have good success with it but that is how we learn. Let me know how your next project goes and would love to catch up with you at some point!
@benjoseph2607 ай бұрын
Sounds like you modified the process. I have yet to do a dry pour, but plan to as my project is impossible for a truck to get to and I don't want to be tied to the timeline and manpower required to mix on-sight. I will definitely learn from this.
@AndrewAbernathyaz10 ай бұрын
Hydration has always been the key to good basic concrete formation. Even truck mix can go off if not correctly hydrated. If you investigare this further i believe you will find some plastizers, chopped fiber and colors will work acceptably in a dry mix method. What this method is missing is a solus testing regimen to verify what strength, permeability, and wearability is possible using dry-placement concrete.
@Doomzdayxx2 ай бұрын
Dry will never be as good. you can tell by the end product. They clearly look different. The dry poured just looks like a regular concrete mixture but with not enough portland cement. the end product is softer and more prone to crumble apart. It's not a worthless technique though, it still has it's merits.
@dross10001Ай бұрын
@@DoomzdayxxNo it won't be as good, but if it's good enough for a small patio we're talking about saving over $4k. Dry pour is financially the only option for many.
@DoomzdayxxАй бұрын
@@dross10001 Price isn't the reason people do it. Laziness is. The volume is the same, so there's no price difference. People just want to skip the very important step of premixing.
@tweake717511 ай бұрын
i'm interested to see the strength testing of it, especially a comparison with different strength concretes. compare standard vers high strength vers fast setting etc. also the difference between wet and dry ground. also i wonder what the effect of a water reducer admixture added to the spray water would do.
@TylerLey11 ай бұрын
Cool ideas! We will definately compare to different concretes. I am not sure the water reducer spray would do much. Water reducers move cement grains apart in water and the dry pour is not really saturated.
@VenturaIT5 ай бұрын
water curing for 1 month will probably make a huge difference and possibly raking it out to mix it a bit more at the start...
@psidvicious5 ай бұрын
Not a huge fan of dry-pour concrete but if you’re a DIY’er doing a new a/c pad or a dog house pad or maybe even a small back yard patio, it may have some useful applications. But if there is any chance whatsoever of a possible concrete failure leading directly or even indirectly to any kind of life/safety concerns, it should not be considered for use.
@user-ow7rr1cr6k8 ай бұрын
Great Video! We did an 8'x6' slab outside our back door in late August of this year. Hottest most humid day of the year too. We didn't follow the Cajun Country Family videos exactly because we are in MN and used rebar and I wanted a stronger base with some sand and class 5 based on what I do for a living and am used to seeing. Was it necessary to put in a base or could we have done it directly on grade? We also did way more than 4 sprays because in our 1'x1' test pour the water didn't go all the way down and it was just the bag mix. So we misted twice as directed and then sprayed every hour for maybe 12+ hours and then at least 3 times a day for 6 days all while curing it with plastic for the typical 7 day wet cure. The plastic staid pretty wet and we could see the moisture disappear into the mix. No cracks yet and feels solid! We are having some slight surface scaling. Not terrible, but our dog runs off of it and his claws leave little marks on the surface. Any thoughts on following just the 4 sprays vs. what we did to prevent scaling of the surface? We are hoping to do more pours next year as it only cost us ~ $300 for the nice size slab (because of the base we used. Would be cheaper if we just put the dry mix on the dirt). It is so much nicer than having dirt outside our back door and we hope to do a few more after the spring to see how it held up through the freeze/thaw of a northern winter.
@khalidsalah848211 ай бұрын
I appreciate it, professor. I like it. It is far too simple to manufacture. The way concrete is mixed will alter as a result.
@TylerLey11 ай бұрын
Thanks!
@logik100.011 ай бұрын
Interested on your take of the issues with RAAC, some of our uk schools are falling apart due to the stuff.
@TylerLey11 ай бұрын
Thanks! When it is done right then I think it is great. When it is done wrong then it is big trouble.
@maswapres11 ай бұрын
I do this for my backyard floor... I mix cement with sand manualy and spread to form pour water on it, and for surface i use cement paste... Its done with no need mixer and less effort compare with wet mixing...
@TylerLey11 ай бұрын
Thanks for the note!
@bonehead354511 ай бұрын
we need a dry-pour-concrete test for sure
@TylerLey11 ай бұрын
It is coming. Keep thinking about what you want to see. We will start them soon.
@rosscollins291011 ай бұрын
@@TylerLeyaccelerated test on longevity compared to the same sacked concrete mixed in a wheelbarrow.
@MrEric_API11 ай бұрын
@@TylerLeythere are gong to be LOTS of variables..... the water content involved will be one of the largest ones, I would think. MrEric
@AndrewAbernathyaz10 ай бұрын
@@MrEric_API measure the water applied vs direct mixed to determine the hydration of the mix.
@jaimeortega494011 ай бұрын
The part you thought was "texturing with a paint roller" is somewhat texturing but is part of the Cajun Couple's patented part of the "striking process." If you fail to paint roll it with the fluffy paint roller you will have a rough, bumpy and rocky surface. Also, dry pour concrete probably must be done in a fairly humid environment as it cures from the other side via the wet/damp ground (Louisiana.) Otherwise, it will probably take much longer for the concrete properly cure. I would use reinforcing of some kind fiber mesh, wire / wire mesh or rebar and some method to reinforce the corners. Best regards.🖌🛼
@utubota55227 ай бұрын
I plan on dry pouring a shed floor. Not a lot of weight on it, and it won't have to support vehicle travel. For this purpose, seems like a great and cost saving idea. Thanks for the info.
@Doomzdayxx2 ай бұрын
That would probably be fine, honestly. Though, the only extra cost would be the labor of mixing it. the volume of concrete remains the same. You could absolutely do it yourself, if you want a superior product, that is.
@joesize3023 ай бұрын
I need a slab to park my trailer on when it's not being used. It's a 5 x 8. Could a dry pour work or should I use a mixing type?
@mythrail11 ай бұрын
Has your lab ever tested the strength of dry pour vs wet pour?
@TylerLey11 ай бұрын
Not yet but we will!
@nodnodwinkwinkV9 ай бұрын
@@TylerLey I'm across the water in Ireland and I'd love to hear from a concrete expert about other brands of pre-mix rapid set concrete apart from Quikrete. K-Post, Blue Circle, Kilsaran K-Pro to name a few that are available here and in the UK.
@martls66 ай бұрын
There's a video out that says about 70% which is higher than the guy doing expected.
@beurky11 ай бұрын
In terms of the dragon scales or star wars inscriptions. At what point in the anti-chicken process do you think of doing it? Understandibly, a repeating pattern like the dragon scales can be quickly stamped on with a normal pour. Hand writing stuff, or striking with like a stick,You can't really do it dry because the dry mix will push out of the groves, and create weird lips. Do you do it after the first or second mist?
@TylerLey11 ай бұрын
I would do it before misting. If the aggregate from the dry pour is causing problems with your marks then you might need to run the top 1/4" of the bag of concrete through a sieve.
@origami431311 ай бұрын
Check out Mike Haduck, he did a small scale experiment with a small slab where he used dry pour and wet pour. there is no comparison. Don't do dry pours ya lazy bums
@BiPolarBear72211 ай бұрын
I really liked his video.
@honeytubs11 ай бұрын
It has its place. An intermediate surface between gravel and concrete. Great for my bike shed.
@TylerLey11 ай бұрын
Thanks! I wouldn't make anything out of it that I needed to last long term. It will be fun to do our tests on it and compare the results.
@juicyj813Ай бұрын
Again! The yellow bag is not for dry pour! Use the red bag fast setting quikcrete for dry pour.
@eclaro8 ай бұрын
Hey Tyler, thanks for the amazing video. I can't wait to see your experiments with dry pour. Let me ask: I have near zero experience with concrete, and I'm in a project of building myself a 28x16 concrete slab for a patio and cover it with a pergola and polycarbonate sheets. Since I don't have experience, I'm thinking in pouring it dry for simplicity. I have already excavated a little bit and put gravel. Next steps are leveling the gravel, build the mold and pour. So, I'm thinking about what would be the easiest-sill-good-enough way of fixing the pergola posts. Here are the options I'm thinking about: 1) just put the post holders into the dry concrete and let it be fixed when soaking the concrete. 2) fix the posts afterwards by drilling into the concrete. 3) dig deeper holes for the posts and use wet concrete or even expandable foam to fix them. Am I being too optimistic in thinking this would work? What would be good options? Any additional advice would be appreciated. Thanks again!
@dross10001Ай бұрын
So which route did you go and how did it work?
@JamesAmbrose48Ай бұрын
Another advantage to dry pour I cover in my videos is you can add a rebar grid but there’s no need to tie it together because there’s no force pushing them apart as would happen in a mix pour. You just throw them in a loose grid and cover them with concrete. Also in my videos I use mortar on top for a sightly finish.
@nochops17812 күн бұрын
The rebar does not bond to anything. A waste of concrete and a waste of rebar. Do it properly.
@MrMrm199411 ай бұрын
Thanks. Would it be possible for you to do experiment between dry and wet pour and measure the pressure to failure with hydraulic jacks. I assume the 2 are not even close.
@TylerLey11 ай бұрын
Yes! Stay tuned for that!
@pulporock11 ай бұрын
Hi Tyler. You are the one person to be a little more scientific in this discussion. Do some compression testing of samples and the adhesion to the rebar. I have done plenty of dry pours for small things over the years. But I normally do half the level, saturate quite well then rebar mesh then dry mix over the top. Not sure the finished surface is hard enough, or compact enough. Cheers from Oz
@TylerLey11 ай бұрын
Thanks! We will try that coming up!
@dross10001Ай бұрын
What are your thoughts on it if say you were doing a 4" slab and put 2 inches in the forms and do the water things then add the final 2 the next day? More penetration?
@gregcollins34042 ай бұрын
So what is the objective relative strength of a little dry pour slab?
@halledwardb11 ай бұрын
I think it's just stupid. Thats what I think
@TylerLey11 ай бұрын
I get it =)
@NSER1649 ай бұрын
Something i have wanted to know for many years is how much water it takes to change an average interior slab mix from a 4" slump to a 6" and if that is a significant change in the water to cement ratio
@nobreighner11 ай бұрын
Really cheap out: Mix pure cement into the top of a rocked surface (like class II base rock) with a rake. Did that for the chicken coop and run area. Smooth, easy to clean, and can't keep the chickens off of it.
@TylerLey11 ай бұрын
That is like stabilized soil. I agree that can be awesome in some applications. Go chickens!
@clos4832 ай бұрын
Thanks for the video. I need to make a slab 7’x7’ for a hot tub filled about 3,800 pounds. Deck will be built around it so difficult to repair later. Thoughts? Thanks!
@Doomzdayxx2 ай бұрын
I would highly recommend using 2X6s for the form (the pad will actually be 5.5 inches thick. Rebar in the middle. Crushed gravel base. That's like 40 80-lb bags of concrete. It can be done with a lot of hard work. Price that out, versus a small concrete truck.
@SquirtNZ6 ай бұрын
Any idea when you'll have some test results please? I'm thinking about dry pouring a small slab to put a pizza oven on and dry pour would be heaps easier for me. But i would be keen to see what your tests show before I decide!
@ChristianWagner8889 ай бұрын
In the Philippines, I have never seen any premix concrete bags for sale. We would still need a mixer to mix sand, gravel and cement. Additionally we could not store the premix as the sand is always wet. Therefore we would have none of the advantages and we practically cannot even try it out.
@SquirtNZ2 ай бұрын
@TylerLey How're you getting on with the lab tests? New dry pour video coming soon perhaps? 🙏🏼
@petelinster70934 ай бұрын
They do use a sander to vibrate the forms that have the 2x4s
@boby11511 ай бұрын
No matter the type of pour, PPE should always come first and a plan for it’s use (preparation is everything). What grade do you think the Oklahoma State Medical School would give the couple from Louisiana for health and safety ? 👨⚕️🤔.
@VenturaIT5 ай бұрын
If water curing for 1 month was added it might improve the recipe and make it stronger... so I think this works better down in Louisiana where it rained on their slabs right after they were done vs in a place where it did not rain or it was very hot right after they completed the process.
@TylerLey5 ай бұрын
We tried it! New video is coming where we share the results.
@robnowe54642 ай бұрын
Do you have any videos on Hybrid ECC using the Helix Steel 5-25 TSMR and trying to find a optimized mix cost wise? I am trying to learn as much as I can about ECC, but having difficulty. One area especially hard to find info on is the fire resilience of ECC.
@dw42411 ай бұрын
I am thinking of using the dry pour method with a paver form to make a walkway. It seems to me I could either make an outside sides form with wood for the entire length, fill it with dry concrete, spray it with water then stamp the whole thing with the mold form to make the pattern OR just dry pour each one in the mold form without the wood sides, but what about the form release without the sides falling out? I would think if you got the top wet, the side would not be the first time, but if you did many spray / wait cycles the mold might not release from the part of the concrete that is now hardened? Is there way to do this with just the mold form for each paver? Is that something you could test?
@TylerLey11 ай бұрын
Use a mold made of plastic or latex. You could also use plastic or saran wrap around the mold.
@dw42411 ай бұрын
Thanks, I was not sure if 'dry pour' would get stuck in the mold since the top sections would harden by the time the bottom would be wet. If one put plastic or saran wrap around the mold I would think the sides would release but I still wonder if the hardened top might jam the mold from being removed? @@TylerLey
@hamidrezar1040Ай бұрын
Professional
@michaelblackmer81838 ай бұрын
If you compacted the dry concrete prior to screening and spraying, I can't think that the overall density/composition would be all that different from a wet pour. Obviously it would need to be tested, but I'd be shocked if there was a detectable difference in compression or shear strength beyond ~10%.
@Calum_S11 ай бұрын
Do a video about autoclaved aerated concrete and see your viewing figures in Britain go through the roof!
@honeytubs11 ай бұрын
I would like to see a video on AAC as well. Is AAC common in England? In the Western US it has to be special ordered and shipped from Mexico or Florida. It would be nice to be able to pick it up locally.
@TylerLey11 ай бұрын
Thanks! i will see what I can do.
@TylerLey11 ай бұрын
I agree. It is not common in the US. It requires a lot of energy.@@honeytubs
@dscrive11 ай бұрын
haha, I guess I've been waiting for this video since I learned about dry laid concrete
@TylerLey11 ай бұрын
Thanks for watching!
@user-bd4eo9ut9h2 күн бұрын
Please grade the quality of the „Mud Mixer „
@80dale5 ай бұрын
All in all , seems a bit easier to just add water?
@allalphazerobeta864311 ай бұрын
How about a video on Rammed Earth? or stabilized rammed earth? (aka the kind with cement in it). Also, at 5:00 he's standing on epoxy coated rebar. The SHAME!!!!
@TylerLey11 ай бұрын
Rammed earth is a good idea. Let me see what I can dig up. =) Totally right about the epoxy rebar.
@MichaelWysocki-ks5xt4 ай бұрын
I make all my cakes this way , I put the ingredients in the pans, sprinkle a little water, and put them in the oven. They rise and bake up firm and moist. No, they don’t. It’s a cooked egg in the middle of dry mix.
@MichaelWysocki-ks5xt4 ай бұрын
Like I said elsewhere, like pouring a mold full of plastic resin and just spraying some hardener on the top . It should cure completely.
@dchall87 ай бұрын
Since this is another way to sell bags of concrete, I would think the folks at Quicrete would be doing all sorts of experimentation to make dry pour concrete more of an accepted practice.
@johnkennedy36024 ай бұрын
can you make dry-pour test cylinders and crush them please? i need to know the psi grade compared to what the wet mix of 3500psi sakrete. can you test a 8"-12" thick footing that is dry-poured 40"-50" below grade, left for 28 days and dug up again? everyone is testing the dry pour slabs that are misted every 1h, but what about dry mix that is just in contact with soil and left for a while. there's got to be a difference.
@mariocuka776611 ай бұрын
Thankyou for this Tyler 👍
@TylerLey11 ай бұрын
Thank you for watching!
@nedmorris97948 ай бұрын
I like my brownies w aggregate lol j/k Have you done a dry pour and strength test? There was a lot of “I don’t know” comments in video. I’d really like to know and put this to sleep once and for all. Conceptually it seems like dry pour could be stronger w a typical DIYer since it’s not oversaturated (as most DIYers wet mix is way too wet and weak). Please test and report! Would be a great video! 👍 Dry pour will never replace a nicely finished professional pour IMO.
@xAeschylusxАй бұрын
Probably wouldn’t dry pour a driveway or something structural that would need to support a lot of weight, but a pad for my shed? I’m gonna give it a shot If it doesn’t come out super great I don’t really care
@Wild_Bill5711 ай бұрын
Just started watching this video, looking forward to your opinion. The whole idea sounds wrong to me but that why I’m watching. Edit: Having watched the video, guess I’m a Mandalorian.
@TylerLey11 ай бұрын
hehehehe I totally understand. I would do it the old way as well.
@hippo-potamus8 ай бұрын
Mike Haduck showed all those points you mentioned and why he would not recommend dry pour, no big deal.
@itsbjorn11 ай бұрын
Great video...always learn something...concrete rules
@TylerLey11 ай бұрын
Thank you!
@trafficsignalman11 ай бұрын
Your preface set the entire point: dry pour is for small, lightly loaded applications.
@TylerLey11 ай бұрын
Truth!!! Just like bringing box brownies to an office party! Thanks for watching!
@christianlassen15777 ай бұрын
saw a guy do some informal testing, driving his car on different slabs and smashing then with hammers and stuff. seemed like it held up the same as anyone watching could tell
@TylerLey6 ай бұрын
We are working on a new video for this. I was really surprised (in a bad way) about how the dry pour performed.
@charlesviner156511 ай бұрын
👍KEEP UP THE GOOD WORK
@TylerLey11 ай бұрын
Thanks!
@EngrPen-yu3mk11 ай бұрын
I saw your name on ACI report: Guide to Durable Concrete, was that you?
@MofiacАй бұрын
Trying to understand what is so hard about adding water to a bag of cement before pouring it. Are these people making dry cakes and pies too?
@brucewinningham495911 ай бұрын
What is the Professor's opinion on "Dry Cast" Concrete as used in the Concrete Pipe Manufacturing Plants?
@TylerLey11 ай бұрын
It can be great! it all depends on what properties you want.
@brucewinningham495911 ай бұрын
@@TylerLey -- THANK YOU Sir! The most important property we would need is ZERO SLUMP. Is the addition of Water Reducing Admixtures (with very little water) what separates Dry Cast from Dry Mix (with absolutely NO water added to the Mix?).
@howie41503 ай бұрын
It's a shit poor idea. It's a weaker pour. If half ass is what your looking for. Then go for it.
@bradcavanagh309211 ай бұрын
Sounds sort of similar to those bags of premix for setting posts and with all that time to hydrate it also seems a complete waste of time compared to how must faster it is mix it up conventionally.
@TylerLey11 ай бұрын
I think it depends on the size of the project. Some people get overwhelmed by the labor and if they are "doing it right".
@TheFreightBeast11 ай бұрын
Interesting
@TylerLey11 ай бұрын
Thanks!
@soccerkills7 ай бұрын
So if I dry pour my concrete it will not taste good but if I mix my concrete it will be delicious
@grahammewburn4 ай бұрын
Quicker to mix it with water
@BracaPhoto11 ай бұрын
Question : if i move to the east coast of Mexico - will my ICC certs or ACI certs mean anything over there?? Aci: concrete Icc : soils Reinforced masonry Reinforced Concrete Steel & bolting Etc Anyone have any knowledge of this industry from our southern brother ?
@TylerLey11 ай бұрын
It can. It depends on which projects you work on and what requirements they have for their quality control technicians. I think it will help on high end projects.
@lefthandedhardright883911 ай бұрын
I watch your videos at 1.75 times speed. Its much funnier.
@elmerkilred15911 ай бұрын
Can a person use fiberglass rods instead of rebar to extend the life of concrete?
@fargley00111 ай бұрын
Maybe even a bag of fiber reinforced mix..? Rebar would probably create more voids, and the added complexity would be better applied to more traditional methods. I could add nuts to the betty crocker brownies, but beyond that I might be diminishing the convenience benefits of using a boxed product. At some point, there is greater benefit to using traditional "wet" methods.
@MitzvosGolem111 ай бұрын
Ti Ylin world famous Chinese bridge engineer uses Bamboo as rebar in China for decades on large projects .
@TylerLey11 ай бұрын
You can in certain applications.
@TylerLey11 ай бұрын
@@fargley001 I would be worried about how well the dry mix bonds to it.
@TylerLey11 ай бұрын
@@MitzvosGolem1 TY Lin is one of my heroes. I love his work.
@itwillbenicewhenitsfinished11 ай бұрын
Nice
@TylerLey11 ай бұрын
Thank you!
@patmat.11 ай бұрын
Anyone not mixing their concrete should be forced to do the same with their oatmeal in the morning ... while watching Disney's Star Wars.
@TylerLey11 ай бұрын
hehehe I havn't tried that one yet.
@parkerguy360111 ай бұрын
All you diy guys: do this method for an AC pad because by the time you need to replace the AC unit you will also need to replace the pad. Dry pour does not hold up to weather. It delaminates the surface and then will just fall apart. Sacked concrete in bags has usually been stored poorly allowing moisture to cause the cement to be weak. If you want to make something that will last you have to do it the right way. Clean gravel, clean sand and new cement from a reputable supplier that has stored it properly. Follow the recipe and do the work. Take no shortcuts.
@TylerLey11 ай бұрын
Thanks Parker, That is what I would do if I was making one.
@realvanman111 ай бұрын
Lol! “I think dry pour concrete has its place”. That’s good! Because concrete IS “placed”, not “poured” ;)
@TylerLey11 ай бұрын
Ha! It depends on who you ask. =)
@Scott-mz4ql5 ай бұрын
This is the stupidest explanation I’ve seen on KZbin
@mikeharrington559321 күн бұрын
Calm down ..
@nilsschear109511 ай бұрын
It’s great for small jobs. Ironically small jobs are easy to mix so why wouldn’t you? It just seems pointless. Plus how you finish the surface can affect the durability. This is a tik tok fad, a hack that leaves you with an inferior product.
@TylerLey11 ай бұрын
I think it may have its place.
@nilsschear109511 ай бұрын
@@TylerLey I was really hoping you’d get into the science of this, I get your hesitation to write it off. A lot of people are intimidated by concrete and this allows them to possibly save money and do it their selves. But you of all people understand how concrete works,it’d be nice if you told us what you really think.