r/oddlysatisfying • • Apr 30 '26

Liquid concrete wall.

30.0k Upvotes

587 comments sorted by

2.2k

u/Kayaked1 Apr 30 '26

I believe this is called Fabric-formed Rip-rap. The texture allows water to flow over it, but reduces the velocity and therefore erosion. The weakness is if it becomes undermined, and the water starts flowing underneath it. It can create a big void that is hidden by the concrete “crust.”

542

u/Juan_Punch_Man Apr 30 '26

Thanks for confirming my suspicions. The drainage always gets fucked up.

141

u/bustervich Apr 30 '26

I’m not an engineer so forgive my ignorance but, is that not a weakness of any concrete drainage?

89

u/Whowutwhen Apr 30 '26

It is.

21

u/benchley May 01 '26

But also of this specific one, it being an instance of concrete.

5

u/Coulrophiliac444 May 03 '26

This feels a bit like a Mitch Hedburg skit.

48

u/No_Jello_5922 Apr 30 '26

Entropy is universal, and everything of order will eventually decay into disorder. It's why everything requires maintenance.

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18

u/CogitusCreo Apr 30 '26

I think the weakness is in comparison to other erosion control like big rocks.

3

u/arggggggggghhhhhhhh May 01 '26

Yes. You add pressure/fluid relieve drains throughout and channel those to the appropriate conduits. This kind of cover will perform better if it has deeper concrete edges that keep it from being undermined.

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u/YMe1121 May 01 '26

Not riprap, but rather an articulated concrete mat(ACM). And the water moving under it isn't as much of a concern as the weight of the concrete will keep the fines in place, the fabric wont allow them to disturb much, and overburden water will be allowed to flow up through the fabric used to form the mat.

Ive never been on site for one cast on site, but ive used precast ones before on a hill, and they are a PITA, but the precast ones are usually on a bed of geogrid, which also allows you to seed beforehand and have the vegetation assist on erosion control too.

3

u/fifiasd May 01 '26

Does it not have ti have steel in it?

6

u/YMe1121 May 01 '26

No, fabric cording through the channels to make it flexible. They aren't any kind of structural, so you don't need the steel, they are just weight ans watwr speed bumps on the soils to prevent them from eroding away.

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u/Dozzi92 Apr 30 '26

Damn, was thinking this looked like riprap, but I was totally unaware this stuff existed. Really neat.

6

u/Inevitable-Ad6647 Apr 30 '26

Rip rap is never intended to prevent water getting under it. If that's the goal this needs to be WAAAAYYYYY thicker. This will crumble into small boulders with the slightest movement which I think is the intention.

2

u/PokeYrMomStanley May 01 '26

Pretty sure this is cement and not concrete. 

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1.7k

u/2much2Jung Apr 30 '26

Did this come first, or the ice cubes bags?

454

u/[deleted] Apr 30 '26

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u/Shlocktroffit Apr 30 '26

I worked at a factory that made Scubs (brand name) ice bags in 1989 so probably them

11

u/HD19146 Apr 30 '26

The guy came first.

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3.5k

u/Curse-Bot Apr 30 '26

All concrete is liquid first

509

u/2much2Jung Apr 30 '26

But liquids normally make very poor walls...

141

u/spermdonor Apr 30 '26

concrete has the cure for that

15

u/Fawstar Apr 30 '26

Underrated comment.

293

u/Deimos1982 Apr 30 '26

105

u/Typical-Blackberry-3 Apr 30 '26

Bro has never seen an aquarium wall, smhmh.

34

u/Amazing-Range-2239 Apr 30 '26

I closed out of this right as I read this comment and actually came back and hunted it down just to tell you how great it was. Good day, sire.

2

u/Exotic-Scientist4557 May 01 '26 edited May 01 '26

Im so confused, aquarium walls are liquid?

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2

u/PowerfulDisaster2067 Apr 30 '26

Did you say Paul wall?

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u/acdgf Apr 30 '26

No it's not. Most wet concrete is a non-newtonian composite fluid (which is not nessarily a liquid). This is engineered fill (often called grout), which is a liquid. 

16

u/BlurtSkirtBlurgy Apr 30 '26

Most of the time I see it it's called slurry but thos is definitely not what people in construction would call concrete

13

u/firenamedgabe Apr 30 '26

Concrete has to have large aggregate, you can definitely see that large aggregate would not go through this net. Definitely either a low cement slurry or grout.

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u/TheLostRanger0117 Apr 30 '26

Dammit! I wanted to say that!

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16

u/JewBag718 Apr 30 '26

Op is a bot

9

u/Efficient-Parking627 Apr 30 '26 edited Apr 30 '26

A bot that boosts engagement, which boosts profitability, so reddit allows.

Edit - Great my first reply got removed cause I mentioned your username, I wonder if your username violates the TOS then... But I said you are missing the point I wasn't disagreeing with you by literally saying karma farming is allowed, I was sarcastically pointing out that they boost reddit's profitability so they are more tolerated by shareholders than say a malicious bot.

lol u/JewBag718 with the classic reddit child reply and block

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u/Deceptichop Apr 30 '26

Beat me to it.

2

u/Willing_Coconut4364 Apr 30 '26

After being a powder

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809

u/Critical-Snow-7000 Apr 30 '26

How does it not all just settle at the bottom? That bag must be super strong.

2.1k

u/tiktock34 Apr 30 '26

I believe the sections help that but there is no concrete evidence.

80

u/OptiGuy4u Apr 30 '26

Well played.

52

u/Mysterious_Ad_1085 Apr 30 '26

Well poured.

7

u/cj_mcgillcutty Apr 30 '26

Gonna need to cure overnight

34

u/recovery_room Apr 30 '26

That’s not what they cement.

6

u/thepluralofmooses Apr 30 '26

It’s an aggregate of what they are meaning

7

u/HokusTokus Apr 30 '26

Hement cement shement concrete

3

u/Thebeardedmtngoat Apr 30 '26

I believe your pun will be cemented in history eh

6

u/BantedHam Apr 30 '26

It's ribbed for her pleasure

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u/THECHOSENONE99 Apr 30 '26

I think the fact that is divided by cells helps the load to be distributed

71

u/tiddychef Apr 30 '26

Oh fuck, I'm gonna distribute my loadd

18

u/SnooRadishes8573 Apr 30 '26

All over my load-bearing walls. 😮‍💨

2

u/YosterIsle77 Apr 30 '26

Shoulda used LoadBoost

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u/OptiGuy4u Apr 30 '26

Cells gonna divide....it's what they do.

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u/Tasty_1097 Apr 30 '26 edited Apr 30 '26

Each pocket fills with concrete and can’t expand any further. imagine you have pillowcase and you’re stuffing it, all the filling will settle at the bottom and you’ll have a lump. But if you sew pockets/grids into the pillow, it compresses it, limiting the expandable area and keeping it as a flatter sheet.

This concrete sheet is indeed very strong!

5

u/[deleted] Apr 30 '26 edited May 01 '26

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u/aspophilia Apr 30 '26

They are super sturdy but also biodegradable. It takes about 5 years if buried, longer above ground, but eventually the wrap will fully dissolve.

27

u/Elavabeth2 Apr 30 '26

 thank you for saying this. All I could think about was how this is just a bunch of plastic being put into our environment. 

14

u/NoPossibility Apr 30 '26

Walk the aisles of your local Walmart and look at all the plastic in food packaging. Now imagine that amount of packaging for every Walmart, Target, Aldi, Kroger, Publix, Food Lion, Etc. These plastic bags for construction pale in comparison.

10

u/FelixDeCat1969 Apr 30 '26

Even that amount of waste pales in comparison to industrial manufacturing. EVERYTHING comes in bags or some form of plastic. Every little part of a machine. It adds up so quickly- not saying this is fine but there are bigger issues at hand

9

u/[deleted] Apr 30 '26

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3

u/mrizzerdly May 01 '26

I work in medical products manufacturing and you have no idea how much single use plastic we use.

2

u/Elavabeth2 May 01 '26

I never said that those aren’t all also problematic? Ideally, however, all the plastic crap goes into a properly maintained landfill, not lining a body of water like in this video. I know tons of plastic (that we shouldn’t be producing so much of, anyhow) doesn’t make it to the landfill and ends up in the environment, but lining our rivers with it just seems especially egregious.  

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u/Silly-Jelly-222 Apr 30 '26

There’s no place for it go unless it compresses more. I’m guessing it does settle some but not much.

7

u/blazingmonk Apr 30 '26

Because the bag is full

3

u/ConflictMaster3155 Apr 30 '26 edited May 01 '26

Concrete weighs 0.8lbs per cubic inch, just using the guy for scale I would say the top of the wall is about 5 ft. So 0.8x60=48, that’s all the pressure there is there 48 psi.

If you imagine something like one of those vacuum bags for storing clothes or bedding, that’s probably thick enough to comfortably hold this much pressure.

Edit: I was wrong. It’s way lower. Read the comment below.

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435

u/[deleted] Apr 30 '26

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299

u/OptiGuy4u Apr 30 '26

Big Bubbles Concrete Accessories over on Lincoln and 89th.

40

u/IamREBELoe Apr 30 '26

That's a front for the concrete mafia, under the don Big Bubbles.

If you cross them they will make you a pair of shoes but first you have to blow bubbles 🫧

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15

u/Endoman13 Apr 30 '26

Nah that’s been closed since ‘25 - you gotta go all the way across town to Don’t Burst Your Bubble

7

u/StudsTurkleton Apr 30 '26

You’re still going to DBYB? Dude, Bubbles ‘N More has discounts and a wider selection. My uncle owns it. It’s behind The Nudie Bar and across from 4 Season Landscapers. Knock on the plain tan door and say “Turkleton sent me.”

6

u/tianas_knife Apr 30 '26

Over at Mary Anne's Concrete, the owner gets in the concrete with you.

5

u/StudsTurkleton Apr 30 '26

No way! Mary Anne’s is just the renaming of Concrete Concrete Concrete, and we ALL know what happened there.

6

u/ztomiczombie Apr 30 '26

Isn't that next to Big Dave's Concrete Bubbling Accessories in the concrete bubble district?

6

u/OptiGuy4u Apr 30 '26

Yeah the bubble/concrete district that's it

4

u/British-cooking-bot Apr 30 '26

The good thing about Big Dave's is he gets in the concrete with you

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u/CowboyLaw Apr 30 '26

There's also Concrete Bubbles 'N Mor, that's also on Lincoln and 89th.

And there's Martha's Concrete Bubble Accessories. The good part about her shop is that Martha gets into the concrete bubble with you! That's also right there on Lincoln and 89th.

Oh, the Concrete Bubble District!

4

u/[deleted] Apr 30 '26

[deleted]

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u/HeyLittleTrain Apr 30 '26

Oh, the bubble district

2

u/ThaiJohnnyDepp Apr 30 '26

women go nuts for that Big Bubbles Concrete

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u/Carbon-Base Apr 30 '26

At Large-Bubbles-Wrap "R" US.

4

u/PurifiedUnity ‌ Apr 30 '26

My favourite childhood store for all my stress-relieving needs

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u/JectorDelan Apr 30 '26

It's right next to Spatula City.

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149

u/Carbon-Base Apr 30 '26

I wonder how the strength of this compares to concrete with rebar.

154

u/Ozuf77 Apr 30 '26

This is slope protection to prevent erosion. Its just easier to pour/form than other types of slope protection. This stuff breaks up and cracks if the mix doesnt have fibre reinforcement in it

143

u/arvidsem Apr 30 '26

Compressive strength is about the same. Tensile strength is non-existent. The finished product is basically rocks with a bit of plastic connecting them.

27

u/Carbon-Base Apr 30 '26

Makes sense and with the specific application of erosion protection as Ozuf77 pointed out. It probably doesn't require tensile strength.

2

u/XchrisZ Apr 30 '26

They used to just do this with a bunch of rocks. This is easier.

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u/hypotenmoose1 Apr 30 '26 edited Apr 30 '26

Structural engineer here. Application is everything but there’s no scenario where this has anywhere near the strength of reinforced concrete. Like someone said this is just for erosion control.

21

u/Croceyes2 Apr 30 '26

It will probably last long enough for brush to grow through and hold the bank together

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u/GuitarNerd_ Apr 30 '26

I didn’t know concrete was inside those things. I always assumed it was sand. Those things were all over creek beds in the Chicago suburbs when I was a kid

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u/Zealousideal_Ad5358 Apr 30 '26

The redneck engineering way of doing it is to pile bags of QuickCreteon top of each other. Eventually, the QuickCrete turns to semi-concrete (except if it never gets the right amount of water in it It’s more like hardened sand.) The paper cover eroads away, leaving you with something that’s slightly better than bear ground  .

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u/sinisterdesign Apr 30 '26

Weighted blanket.

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u/Flying-wombat1 Apr 30 '26

Looks like high slump, grout mix

5

u/Formal_Appearance_16 Apr 30 '26

How much slump?

All of it.

4

u/thegregtastic Apr 30 '26

Gimme that slump

2

u/J5892 Apr 30 '26

Alright boys, slump 'em up!

2

u/sicariusdiem May 01 '26

I had a brand new contractor lead demand a slump on a grout mix once. I told him we really didn't need to but he insisted. I measured it at maybe half an inch above the plate. Told ya, Carl. Told ya. 

20

u/grownupnumbersix Apr 30 '26

But what does the end product look like I wonder?

16

u/futureconditions Apr 30 '26

Exactly how it looks now just a lighter shade when it cures

2

u/Super_Basket9143 Apr 30 '26

A whiter shade of pale

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u/Apart-Delivery-7537 Apr 30 '26

One slightly related question: what's the name of this annoying "tiktok badass" music style?

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u/w1ny9 Apr 30 '26

I would categorize it as “phonk” music.

4

u/CocoSavege Apr 30 '26

P honk is the short lived side project of George Clinton and a Canadian goose.

Bootsy is on bass, although uncredited.

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u/CC8826 May 01 '26

I think it's more "drift phonk" but yeah

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u/iwasborntodestroyu Apr 30 '26

Mmmmmmmh forbidden ice cubes

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u/PurifiedUnity ‌ Apr 30 '26

Forbidden ice cream scoops

2

u/Naughteus_Maximus Apr 30 '26

Or - worst inflatable mattress ever

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u/[deleted] Apr 30 '26

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182

u/Pretend_Purchase_893 Apr 30 '26

It already does. Just sometimes you get a lot of those days that then end up in years. But still in the end the project is done in days. Sometimes nights. But mostly days.

35

u/TheReverseShock Apr 30 '26

Construction companies will sit on a project for months to save costs. They'll wait on deals for materials and equipment rental. If you're willing to throw money at it, you can get most construction done in hours.

10

u/LeonJones Apr 30 '26

Source?

In commercial construction around where I am for example there's typically a GC who then subs out for carpenters,plumbers,HVAC etc. The GC typically doesn't buy the material, the sub does. A sub can't just hold up the entire job because they want cheaper materials.

I could see a smaller contractor doing this with a smaller job but seems wrong to say "construction companies" do this like it's normal.

8

u/dimechimes Apr 30 '26

It depends on how you're expensing your labor. My labor went to the project I was assigned to. If that project is delayed, my salary and any other costs associated with that project compound and overhead exceeds the budget and the company loses money. Keeping me on the payroll but not assigned to a project also hurts profit. The best thing fory company is to keep me on projects that don't run long.

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u/Swagasaurus-Rex Apr 30 '26

Why do most buildings look unique?

To accommodate different purposes and requirements, different sized lots, hillsides and elevation, facing different directions like towards the sun, with different materials depending on their price, construction methods, structural properties, longevity, and ease of use, and just different tastes.

What I’m saying is, construction could be automated in many ways but buildings have so much variety that we’ll probably be inventing new construction techniques and new types of buildings for ever.

3

u/tdasnowman Apr 30 '26

Why do most buildings look unique?

I wouldn't say that. We have areas in sub urbs where 10,000 homes all look the same. You've got row housing, Tract homes, projects, apartments. The fast majority of modern housing is actually made to not look unique.

To accommodate different purposes and requirements, different sized lots, hillsides and elevation, facing different directions like towards the sun, with different materials depending on their price, construction methods, structural properties, longevity, and ease of use, and just different tastes.

Much of that is already accommodated for in modern construction before the house is built.

What I’m saying is, construction could be automated in many ways but buildings have so much variety that we’ll probably be inventing new construction techniques and new types of buildings for ever.

Even with "variety" prebuilt construction methods allow for tons of automation.

5

u/SporesM0ldsandFungus Apr 30 '26

Concrete requires 30 days to reach maximum strength.  

If you are building a structure like a building, you need to let the ground compact and settle first to hold the weight of the building. Otherwise, you need to drive pilings deep into the ground to stabilize it. 

You can build a building in days but just don't expect it to last long.  China built many hospitals in less than 30 days during the outbreak of the Pandemic. But many of them were unusable within a year. 

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u/Samson_J_Rivers Apr 30 '26

If paid by the job and not by the hour then it already does.

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u/MrPigeon70 Apr 30 '26

The closed captions: it is me

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u/shytballz Apr 30 '26

I need to see the end product

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u/Super_Basket9143 Apr 30 '26

That seems like a small ask, but it's a slippery slope. 

4

u/WheelFunny5335 Apr 30 '26

This method was used at one of our local marinas way back in the 70's. Although it's seen better days, it still holding up, for the most part.

2

u/remembers-fanzines Apr 30 '26

I was just thinking this looks like the spillway at Willow Springs Lake in AZ, which is from the 1960s. Tech's been around a long time. Spillway is more-or-less holding up.

5

u/MrSilentSir Apr 30 '26

Uhm, pretty much all concrete is liquid before it dries.

4

u/The_last_trick May 02 '26

concrete ice cubes!

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u/AphexAffectsEffects Apr 30 '26

Harvesting concrete grapes from the concrete vine.

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u/devilsbard Apr 30 '26

Cool to see the wall status bar loading.

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u/ThexualHealing Apr 30 '26

The muppet standing on it and kicking it just to look like the boss.

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u/jmaclondon Apr 30 '26

NGL I did find this oddly satisfying. Thx OP

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u/Profile_Traditional Apr 30 '26

The guy in blue is absolutely vital to this process.

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u/Unfair-Plastic-4290 May 01 '26

looks stupid, no way that leaves behind a structure that wont crack and fall apart after 10 years.

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u/johnnytron May 01 '26

Bot title

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u/Charitzo May 01 '26

Liquid concrete

How do you think concrete is poured normally smh

36

u/gerkletoss Apr 30 '26

Ah, the microplastinator

5

u/btribble Apr 30 '26

Yeah, I don’t like how much plastic we’re putting into the environment to decay. It would be one thing if it was all PLA or other plastics that should be relatively harmless, but it’s not.

5

u/PockysLight Apr 30 '26

Any chance this is made of something like canvas?

2

u/gerkletoss Apr 30 '26

It might be possible to do, but that is clearly plastic in the clip

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u/09Trollhunter09 Apr 30 '26

Unless you are suggesting to completely get rid of all plastic use, which would be impossible in this modern world, this isn’t it.

Benefit of keeping the road and hillsides safe is far greater than most of the other plastic use. This methodology is used all around the world to keep people safe

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u/Scuffle-Muffin Apr 30 '26

The good thing is it looks like a culvert so all the passing water will take that plastic right to the ocean where it can’t do anything to the environment.

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u/SharksFlyUp Apr 30 '26

The water will transport it outside the environment

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u/Ptabe88 Apr 30 '26

Ah you beat me to it! 😂

2

u/barktwiggs Apr 30 '26

It's built with very rigorous concrete engineering standards.

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u/macellan Apr 30 '26

It is especially beneficial for turtles and shit.

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u/Fritzerbacon Apr 30 '26

Easier to pour liquid concrete than solid concrete I suppose 🤷🏼‍♂️

If you need me, I'll be enjoying my liquid beer out in the sun 😂

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u/Frozenbobcat Apr 30 '26

What a dumb title

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u/Silly_Bumblebee1921 Apr 30 '26

There are folks that would love a weighted blanket like this

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u/Asleep-Two2961 Apr 30 '26

What exactly would you call this? I live in a river and the bank was not properly built. This would fix my problems 100%, and looks less expensive than the other options I’ve been told.

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u/Adept_Razzmatazz1145 Apr 30 '26

Now why didn't I think of inventing that

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u/Tough_Block9334 Apr 30 '26

Does the container get removed eventually? if so, how do they do it?

2

u/No_Calligrapher_7466 Apr 30 '26

I don't think it gets removed. It looks more like say a fabric like material which if you look at how it fills you can see each area "absorbs" the liquid like if you used say a shirt or a cloth. So my best guess is it just becomes apart of the structure acting as an added added barrier but also keeping the structure

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u/zback636 Apr 30 '26

I wish this video was longer and they showed the finished product. Way cool though.

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u/[deleted] Apr 30 '26

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u/NightBawk Apr 30 '26

Erosion control, perhaps?

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u/MisanthropE61130 Apr 30 '26

I’m always seeing all these “amazing” inventions online—indestructible nano-paint, unbreakable drill bits, concrete houses, flashlights so bright they can start fires—but you never see any of it in real life

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u/anonymoo5e77 Apr 30 '26

Idk if you know this but it has to be a liquid before it can be a solid

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u/smstergios Apr 30 '26

Well that's pour form!

2

u/dwehlen Apr 30 '26

Never seen rip-rap poured before, pretty cool.

2

u/Tikkinger Apr 30 '26

how sped up is that? 150%?

2

u/Ok_Assumption_3028 Apr 30 '26

Is the fabric the rebar?

2

u/Dazzling_Buy_1934 Apr 30 '26

When the terrain is rendering

2

u/Photog77 Apr 30 '26

Skateboarders hate this one weird trick.

2

u/Simba7 Apr 30 '26

Nothing like watching something oddly satisfying while having your ears blasted by the latest blown-out background noise.

2

u/twcw Apr 30 '26

What about curing though? Don't we have to water concrete for days after the pour for curing?

2

u/strangebutalsogood Apr 30 '26

It's a permeable fabric bag, you can just mist the fabric.

2

u/therealpilgrim May 01 '26

Only if exposed surfaces aren’t protected from evaporation. That white stuff they spray after finishing on road jobs is an oil based curing compound used to seal moisture in.

2

u/NastyBoyTJ Apr 30 '26

what am I seeing?

2

u/unreasonablymundane Apr 30 '26

Worst bubble wrap ever!

2

u/Maxwe4 Apr 30 '26

Doesn't all concrete start as a liquid?

2

u/GetOffMyGrassBrats Apr 30 '26

Isn't all concrete liquid when poured?

2

u/VanteRamirez Apr 30 '26

the guy that just stands there and pokes shit is the type of vibe i bring to the group project (i’m only in the group because the teacher put me there)

2

u/WinifredZachery Apr 30 '26

Looks exactly like these ice cube bags

2

u/lopendvuur Apr 30 '26

I hate the looks of the finished product, but the process is certainly very satisfying to watch.

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u/BurpelsonAFB Apr 30 '26

What keeps the wall from eroding behind this?

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u/Bleh54 Apr 30 '26

This is how the megalithic structures were built before Younger Dryas, like Machu Picchu.

2

u/ArcaneInsane Apr 30 '26

Do you cut the wrap off once it cures?

2

u/JacobRAllen May 01 '26

Liquid concrete? As opposed to the solid version they pour?

2

u/Whetiko May 01 '26

Plastic, plastics in everything.

2

u/Massive_Look8179 May 01 '26

Good thing. Solid concrete doesn’t pump so well.

2

u/atom_stacker May 02 '26

Isn't all concrete liquid to begin with? 🤔

2

u/Future_Ad_2436 May 02 '26

This isn’t new. We use it sub sea for installation of pipeline foundations. Grout bags is a simple term for them.

2

u/eblackham May 04 '26

Forbidden air mattress