CLASH of the CONCRETES Dry Pour Concrete vs Wet Pour DEATHMATCH

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[@sloppyjoes7]

I have an engineering degree... And during my degree I had a teacher who was a worldwide expert on concrete. Guy loved concrete. He really taught us about it. His friend developed the strongest concrete in history, somewhere around 40,000 psi if I remember. Anyway, mixing concrete with the minimum amount of water is the key. Certain additives allow you to use less water. Other than aggregate, (some bunkers use metal aggregate), nothing really matters more than this.

[@renetto]

That is super interesting. Thank you!

[@SomeDumUsrName]

"...mixing concrete with the minimum amount of water is the key." Yes; the key term there is "mixing." MIXING the concrete with the water. Not pouring water over dry, already-poured, concrete and letting the water drizzle down through it.

[@wordskl]

​@SomeDumUsrName but it's works

[@joecoolcitizen1493]

You can't go by a little bowel pour how about a 4by4 pour on ground

[@-PiP-]

What a lovely bunch of concretes you have there!

[@renetto]

I glad you noticed.

[@robingonsalves8949]

You just made a good commercial for the durability of that folding table you just smashed that concrete on! Crazy strong!

[@HeidiSaid]

Yes! Well, how cool is that? Fun stuff.

[@christopherGBrownlee]

I live in south Florida. How important is a gravel pour before you do your dry pour?

[@Socrates...]

Viral for sure 😊❤

[@spiritusinfinitus]

Dry poor looks like it breaks apart along lamination lines of uneven strengths. Like you said previously though it probably doesn't matter much for a path or a shed. You're only going to see the difference in the extremes.

[@LogicalNiko]

I wonder if a university professor who works in a civics department with a compression and tension load cell would be willing to run samples. You would probably need to do at least 3-5 samples on each process to eliminate normal variability in the products. Then maybe 2, 11, 19, 28 day cure tests for each. Possibly even a 3rd set of using different conditions or exposure rates to water.

[@dannyrobinson9351]

Great Video. I have watched everything i can find about dry pour. Seems that garage slabs are not mentioned. Your thoughts on doing a slab in an existing pole barn to park cars on?

[@DiyTheGrappler]

I'm looking to do the same with a drive way going to be trying/testing different dry pour methods, to make a conclusion before I go full Dry pour driveway

[@mr_4point681]

Any of you ended up doing it.??

[@DiyTheGrappler]

@@mr_4point681 I did🤙 I have a lot of videos posted on my KZbin channel from my experience 🤙

[@Niemand1888]

I think if you add some Portland cement in both mixes it will make it stronger.

[@MildarValsik]

I think they ar nearly the same with slight differences. It's all depends on how the rocks settle in a group. A flat dry pour and a flat mixed pour might see differences. Yet just depends on where the rocks set and spacing between.

[@SanDiegoCaliforniaUSA]

@MildarValsik Totally. Even if Paul got more scientific with conducting it. Lot's of variables. But it looks like either way is going to be good.

[@MildarValsik]

@@SanDiegoCaliforniaUSA I would say that for general usage it's going to be good. From all i seen so far I think I know the method I might use along with the dry pour.

[@SSArt98]

Looks like the wet pour is a bit stronger to me. (Wet pour took 4 hits the dry, only 3.) Also, looks like you're still teasing us with the Amazon packages. lol ~ Cheers Renetto, James

[@renetto]

Coming soon...stay tuned!

[@VenturaIT]

Probably because the dry pour was on the crack between the tables, and had more of shock absorber under it... this isn't a scientific test... it's known that more water makes concrete weaker. Would be interesting to make blocks and use a scientific compression test.

[@VenturaIT]

@@-Clandestine- It's more than this... concrete curing is a chemical process... if you have too wet of concrete it upsets the chemical bonds, not just causing the aggregate to fall. The chemical process that occurs in concrete is called cement hydration. When water is added to cement, a series of complex chemical reactions occur, leading to the formation of various compounds, including calcium silicate hydrates (C-S-H), calcium hydroxide (Ca(OH)2), and ettringite (Ca6Al2(SO4)3(OH)12·26H2O). C-S-H is the primary component responsible for the strength of concrete, as it is the main binder that holds the other components together. During hydration, the water molecules react with the cement particles, causing the particles to dissolve and releasing ions into the solution. These ions then react with each other and with the water molecules to form C-S-H gel. The amount of water added to the mixture, known as the water-to-cement ratio (w/c), plays a critical role in the hydration process. The ideal w/c ratio for concrete is typically between 0.4 and 0.6, depending on the specific application. When there is too much water in the mixture, the excess water fills the voids between the cement particles, preventing them from coming into contact with each other. This results in a lower concentration of cement particles available for the reaction, leading to weaker and less durable concrete. Excess water can also lead to the formation of calcium hydroxide (Ca(OH)2), which is a weaker and less durable compound than C-S-H. Calcium hydroxide forms when there is excess water in the mixture, and the water reacts with the cement particles to form calcium hydroxide instead of C-S-H. This can further weaken the concrete and make it more susceptible to damage. The chemical process that occurs in concrete is dependent on the water-to-cement ratio, and an excess of water can disrupt the formation of C-S-H, leading to weaker and less durable concrete. So it's important to have just the right amount of water for Portland type concrete to be as strong as possible. Not too much, not too little. After the chemical bonds are made then the water is less important because the concrete is no longer as chemically reactive. This chemistry happens as soon as the concrete gets wet, so there is a limited window for the mixing and curing.

[@VenturaIT]

@@-Clandestine- Anyone can say anything, they would need to provide some scientific evidence to convince me. If I need a little pad, I'm going to do dry pour due to the money saved and DIY friendly nature.

[@Heinester]

Doing the hammer test on a flexing table hahah

[@teapot2_1]

Let's see some cube tests.

[@yoso585]

Good nuff!

[@bencarignan2711]

Science!

[@lowrollerscratcher3563]

Your video went back viral on KZbin. You should be able monatize on youtube again

[@Mark.Watson]

Someone might argue the aggregate is more evenly distributed in the wet pour sample (4:50). However, performance wise they seem equally strong.

[@SomeDumUsrName]

Performance wise, they do NOT "seem equally strong." Wet pour was holding it's own on all 4 hits. The dry pour was coming apart all over the place during all 3 hits. The top of the dry pour was totally delaminating from the core during the hits like it was a separate layer altogether, and busting up around the edges. When the wet pour finally broke in half there was only a couple little straggler pieces. When the dry pour came apart on the final hit (3rd hit as opposed to 4,) it came apart all over the place. LOTS of pieces. 4 hits on wet pour broke it in half and the edges maintained their integrity. The dry pour was coming apart during all three hits - edges and all - and when it broke it just blew out all over the place. All in all, NO; these two pours are NOT equally strong and they do not "seem" equally strong.

[@pearljameric]

No updates in several months. Guess it's not holding up?

[@matthewstudios331]

I used to watch your videos like 10 years ago. It seems you’ve changed your channel topics. How come your making videos about concrete now?

[@mantasjoniskis]

It's a more solid subject.

[@GFM023]

So, what slump did you mix the wet pour to? Concrete is meant for no more than a 4 inch slump. The more water you add, the weaker it gets! I have 40 years in the concrete field with 16 of those years as a working foreman.

[@ArtificialBanana]

Wacky John might be moving to Florida! 😮

[@SSArt98]

No way! I haven't seen him upload much in the last 2 years.

[@renetto]

I've been following along. We have been in contact.

[@Pierreandandre]

He had to leave his apartment. I think the building is getting demoed for new building projects in Nassena.

[@firecrackerg60]

Im only here to say good luck in whatever you do renetto.. im a long time subscriber to greg solomon and after watching a 45 minute video of him slating you continously, its left a bad taste in my mouth.. i left a comment on his channel showing how disgusted i am with him after a decade of absence to come back on here and put up a i hate renetto video. I dont know what you do e to him but its clear that you live rent free in his head... he has got proper issues and i wish you all the best.

[@rbarr110]

This is the dumbest test ever. A Schmidt hammer test would tell a lot about compressive strength. Dry pour - too many air voids which will compromise compressive strength and is susceptible to crumbling.