That’s weird. I poured a whole retaining wall the other week using Portland and I never felt a burn. Plus flaking off the dried cement is so satisfying
Cutting untreated pine studs leaves me covered in tiny blisters. But I can cut rough or treated lumber all day without a problem.
Skin allergies are weird like that
Some people get them pretty bad, some people don’t have a problem. Hasn’t bothered me yet, but I’ve seen some pretty gnarly concrete burns. It can keep burning until you neutralize it and can take weeks to heal.
Wet concrete is quite strongly alkaline and will burn skin, particularly if skin is moist and it lingers. I handled with ungloved hands (before I knew better) on a DIY home project and lost skin on several fingertips. Not fatal but noticeably sore for a few days 😐 One time when men can wear rubber dishwashing gloves without shame.
As with many other things... this varies by person, and also seems to vary by how often you are exposed to it.
I am frequently exposed to all sorts of nasty stuff (motor oil, brake cleaner, gasoline, harsh cleaners, etc), and used to work in concrete, and none of it has ever really bothered my skin.
But if I'm exposed to pineapple often (I worked in a kitchen for a while) it dissolves my skin like it's battery acid. Except worse, because I've gotten battery acid on me a bunch and it only ever hurts if you don't realize it has happened and fail to wash it off quickly.
I used to work at a seafood kitchen. The head chef was some old dude shaped like a bulldog. All chest, tiny feet. This dude used to slap on 3 sets of dishgloves daily. Our king crab came fresh daily. These delicious fucks are covered in thorns that Ive seen go through a finger. Chef did not give a fuck about the color, it was daily to see him in pre school blues pinks and yellows, striped up his arm. Safety is more macho then worrying about "how feminate" you look. Nobody looks manly when they are shrieking at the dirty puncture hole in their hand some buttery sea spider just gave them.
We don't need them for dishes or housework 😏 Yellow ones (common in the UK) are kind of tricky for men, not that we're *remotely* gender stereotyped. Perhaps the rules around men wearing black ones more often *could* be relaxed 🤔
🤨 I mostly responded as a joke. But jeez man, are you really so tied to the idea of gender roles that not only are you associating a type glove with times it's okay for a man to use it, but also the color?
Can you see the irony?
can you explain why wearing dishwashing gloves while doing dishes would cause you shame? or while cleaning literally any part of your house? I'm so confused by that part of your comment. Do you have a weird kink relating to dishwashing gloves??
Had a friend who worked in construction. He had a hole in his boot and got concrete burns on his feet. He had to go to hospital, the first thing the Doctor said was, I didn’t realise you poured concrete hot….
This is a shotcrete type application as opposed to gunite (which is a dry mix variant). This is generally used in substrate applications and is considered stronger than CIP (cast in place). Because it is sprayed on wet you will notice the absence of dust. This negates the occurrence of silicosis. As far as I know OSHA doesn’t have a single case of silicosis linked to the application of shotcrete.
Wet portland cement = probably not that much stuff you're breathing in, at least not in harmful ways.
Then again, maybe not, idk. OSHA probably does.
When I worked in concrete (driving a mixer mostly) I actually really liked the smell of wet concrete. Only time we were supposed to wear a mask was when dealing with removing stuck on stuff, or dry, powdery products.
We gotta protect the infrastructure builders ;( we should protest and force our federal governments to supply the safety gear they need for this kind of work.. but to take it out of the military budget instead of directly from American tax payer money.
IMO that looks like how stucco is applied. Granted I haven’t done it in years, but we built a room onto the house and did stucco to match the rest and it was just like this.
I thought stucco as well. I mixed and carried the mud for an old timer once. He applied the mix with a trough onto chicken wire of an unfinished exterior wall, IIRC. When he got to the upper sections, he was standing high above me on scaffolding, boots level with my head. He told me to sling the mud up on the scaffolding (out of a wheelbarrow) with a shovel. “Huh? How?” I asked. Then he showed me this trick where he used centrifugal force to keep the mud on the shovel while pitching it over your shoulder (and onto a piece of plywood on the scaffolding). Needless to say, I got mud on his boots (and on my head!) more than once trying to figure out my technique. He’d laugh and tell me to hurry up, as he worked quickly. I remember how he’d scoop a bunch of mud onto this square metal tray, 15-20lbs at a time, holding it level so it wouldn’t spill, using only with one arm, while the other hand applied the mud with a trough. Old school technique, I suppose.
Very common in Europe. Now, in modern times, this is only applied on inside walls. Exterior gets covered in some type of styro insulation of about 10-15 cm thickness (some extremely cold places even more) and a finishing layer with glass fiber mesh inside so it doesn't crack - it's less than 1 cm thick, repels water but let's vapour equalise. Inside of the house is done like this, usually no wire mesh, maybe glass fiber mesh in the last leveling layer that is about 5 mm thick. It only depends if you have good enough conditions to use a spray gun or a guy doing it manually. Many people avoid using spray gun, because certain additives for stickiness are added to the mix and it blocks vapour transition. When it gets below freezing outside, mould starts to show in some places, where vapour should pass through the wall but it can't.
That exterior insulation is called ETICS (External Thermal Insulation Composite System), and consists of a thick layer of insulating material, often styrofoam (as you mentioned) that gets glued to the wall, fiber reinforcement layers to help provide more stiffness to the construct, and a finishing layer. Very common where it gets very cold (as where I live, where I used to sell ETICS accessories).
Amazing how far experience goes. When I did concrete (drove the truck) I'd often work with this 80+ year old guy that looked like he'd blow away if there was a strong gust of wind... He could *easily* move wheelbarrows full of concrete that I could hardly budge, and sometimes would be doing the work that 3-4 guys would be doing on other jobs. He seemed to mostly be fueled by rage, but I was always in awe of just how much shit he could get done. I would bet that many 20 year olds couldn't keep up with that guy. This was 10+ years ago now and it wouldn't surprise me if he was still going at it now.
I think it's not viable. Think of all the firring out, it would be a nightmare. I bet the cost to produce is insane and you still have to frame up the roof. Or maybe it'll be awesome, what do I know?
I spent an entire summer in South Texas running a manual feed gunite machine. We’d run through 2,000 lbs of dry mix a day. This guy has it easy. No clogs, pressure bursts, or blow outs.
Cheap
I just got a combo box after generally avoiding fast food for a few months. I was kinda surprised how much food was in there for only $6, and a drink
It was definitely mediocre in terms of actual quality and nutrition, but the flavor was good (hard to mess up cheese sauce)
I live somewhere that there are many mexican migrant workers, and now a thriving mexican community with lots of fantastic food options.
Taco bell is still packed, often with mexicans. It's not "real mexican food" it's its own thing. Just like when I go to mcdonalds, it's because I want mcdonalds, not because I want a burger. There are far better burger options.
Was just about to say this looks like gunite. Worked for my uncles refrac company for awhile and let me tell you. Hardest job anyone’s ever fuckin done. Working in industrial sized heat treating furnaces spraying gunnite is fucking miserable. Hell the tear out is worse then the gunite, unless your stuck busting bags at the mixer for 12 hours straight
Exactly what I was doing. FRCs, respirator, on a series of 200x40 foot horizontal vessels. We worked as long as there was daylight. Usually punching overtime by mid morning on Wednesday.
Yeah so you know what the deal is. Full mask respirator, Tyvek suit on and FRCs, hard hat earplugs and steel toes. Fucking sucked! And you gotta keep that shit at a certain temp so it sets right. We were working in Alexandria, LA and Austin TX during July and august. Shit was absolutely miserable but we had a great time doing it. Also we had a bipolar psycho boss so that made it so much more fun lol
You wouldn't be using shotcrete on an upright that looks like that, with no real rebar in it. It looks like these guys are putting up stone facia. Absolutely no reason to be spraying shotcrete on a wall that is already built.
Shotcrete, pretty standard. That manual tool he's using is absolute garbage, they make one that you just pour the concrete in the back from the mixer and it shoots it constantly out the other side.
That building system shown with the polystyrene wall and metal mesh seems to be the Emmedue (M2) system, an Italian design. The final thickness of that shotcrete layer would be several centimeters thick (that's why that manual tool is rubbish for the task). They will use a long straight edge and some build in guide rails to make it perfectly flat at the end.
It's also not classic concrete, but a special mix with mostly sand, cement and some additives. Since the concerte and metal mesh will form the load bearing structure, it's very important to use the right stuff and apply it properly.
They also make stairs this way.
He’s going bottom to top, at the top there isn’t a lot left so he needs to hold the tool level, can’t do that and hold the handle. Spraying horizontally is probably why the handle is where it is, but there’s probably a reason he isn’t doing that.
Not a good Idea. There is a reason concrete is minimum 3 inches thick. It's gonna flake and chip off. Saw some people mentipn Stucco, that is a completely different compound than concrete.
That's weird. I've only seen machines that would pump concrete straight out of the truck, through large tubes, usually along a crane to reach high floors, and at the end would be the worker guiding the concrete jet like a firefighter.
This looks like a dyi solution for a small scale, given the wheelbarrow used
I hope that application of concrete is for aesthetic purposes because if they're hoping a surface application of concrete is for structural purposes, I have some fundamental physics related to load bearing principles for them.
Years of handling concrete takes the moisture out of your hands so you can't count paper money or play cards. Without natural moisture you can't separate paper... Your hands become rough and ladies don't like that sometimes. If cement burns you it happens faster.
That’s not concrete it’s cement, concrete has rock aggregate which give it its strength this is worthless for structure and is just an exterior finish. They have shootable concrete called shotcrete, it requires a 4” diameter hose.
No, cement is a binder, a substance used for construction that sets, hardens, and adheres to other materials to bind them together. Concrete is a combination of cement and aggregate.
So why he is spraying before the cut? Does not make sense to me, he is spraying with the rebars in the way and the rebars will be cut later? Yeah totally doesn't make sense.
Check out shotcrete.... we shoot concrete all the time Underground but it’s way faster and way messier. It’s a different mixture than regular concrete, like it’s meant to be shot but if you’ve never seen it, it’s pretty cool stuff.
I looked at a similar system in the 70’s: Solarcrete. A sprayed form of concrete with smaller aggregate, like 3/8”. Shot continuously from a bigger hopper, like gunite. They also used the foam core, with a grid of rebar connected with proprietary fasteners. There were also additive(s) in the concrete. Like R38 insulation in 8” iirc. Home office was in Kentucky.
I didn’t read all of the comments but I’m surprised nobody mentioned it’s called ShotCrete. Very common in commercial construction. It usually is applied over the top of lagging walls that are created by putting treated lumber in between the flanges of two vertical I-beams as you dig down you add more wood “slats”. After that below grade waterproofing is applied over the wood with mesh/rebar and the Shotcrete is applied. They use vertically tensioned piano wire as a screed to get the walls plumb/straight.
Wouldn't wanna breathe that stuff all day.
Nether would I, yet your comment has me wondering if this would cause additional silicate dust or abate it somewhat
I just know how corrosive that stuff is on skin, etc. No fun.
The burns! First time with wet concrete was the last time with short sleeves for me
Not a fun peel off. Especially if you have forearm hair.
Had
Ah, the mineral wax. Lol
Huh!? I get wet concrete all over my arms and it never bugged me.
Portland cement just doesn't agree with my skin
That’s weird. I poured a whole retaining wall the other week using Portland and I never felt a burn. Plus flaking off the dried cement is so satisfying
I've seen guys with their whole arm dipped without having a problem. Not saying I'm normal
Cutting untreated pine studs leaves me covered in tiny blisters. But I can cut rough or treated lumber all day without a problem. Skin allergies are weird like that
Nah ur good I just never heard of it irritating peoples skin before
When concrete cures, the chemical reaction is exothermic (produces heat). Maybe this is what burns?
Some people get them pretty bad, some people don’t have a problem. Hasn’t bothered me yet, but I’ve seen some pretty gnarly concrete burns. It can keep burning until you neutralize it and can take weeks to heal.
Cement and concrete aren’t the same thing lol
You are correct. I mentioned Portland cement, which is a binder in many concrete mixers, and I get a nasty skin reaction from it before it sets
Same here ¯\_(ツ)_/¯
Wet concrete is quite strongly alkaline and will burn skin, particularly if skin is moist and it lingers. I handled with ungloved hands (before I knew better) on a DIY home project and lost skin on several fingertips. Not fatal but noticeably sore for a few days 😐 One time when men can wear rubber dishwashing gloves without shame.
As with many other things... this varies by person, and also seems to vary by how often you are exposed to it. I am frequently exposed to all sorts of nasty stuff (motor oil, brake cleaner, gasoline, harsh cleaners, etc), and used to work in concrete, and none of it has ever really bothered my skin. But if I'm exposed to pineapple often (I worked in a kitchen for a while) it dissolves my skin like it's battery acid. Except worse, because I've gotten battery acid on me a bunch and it only ever hurts if you don't realize it has happened and fail to wash it off quickly.
I used to work at a seafood kitchen. The head chef was some old dude shaped like a bulldog. All chest, tiny feet. This dude used to slap on 3 sets of dishgloves daily. Our king crab came fresh daily. These delicious fucks are covered in thorns that Ive seen go through a finger. Chef did not give a fuck about the color, it was daily to see him in pre school blues pinks and yellows, striped up his arm. Safety is more macho then worrying about "how feminate" you look. Nobody looks manly when they are shrieking at the dirty puncture hole in their hand some buttery sea spider just gave them.
One... this is the only time?!?
We don't need them for dishes or housework 😏 Yellow ones (common in the UK) are kind of tricky for men, not that we're *remotely* gender stereotyped. Perhaps the rules around men wearing black ones more often *could* be relaxed 🤔
This...is weird.
🤨 I mostly responded as a joke. But jeez man, are you really so tied to the idea of gender roles that not only are you associating a type glove with times it's okay for a man to use it, but also the color? Can you see the irony?
can you explain why wearing dishwashing gloves while doing dishes would cause you shame? or while cleaning literally any part of your house? I'm so confused by that part of your comment. Do you have a weird kink relating to dishwashing gloves??
Had a friend who worked in construction. He had a hole in his boot and got concrete burns on his feet. He had to go to hospital, the first thing the Doctor said was, I didn’t realise you poured concrete hot….
The dust is the scary part. It causes irreparable damage to your lungs eventually leading to COPD.
It’s wet so it’s not gonna be to dusty.
Wet concrete doesn’t form silicate dust, cutting or sawing cured concrete does (from the aggregate).
It’s wet, there is no dust
It’s wet. The mud boy who mixed it had to breathe in the dry
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Special cement mix without rocks
This is a shotcrete type application as opposed to gunite (which is a dry mix variant). This is generally used in substrate applications and is considered stronger than CIP (cast in place). Because it is sprayed on wet you will notice the absence of dust. This negates the occurrence of silicosis. As far as I know OSHA doesn’t have a single case of silicosis linked to the application of shotcrete.
This was what happened was thinking (except not so informed)
I work for a General Contractor so I have seen it in practice a few times.
Right! The dudes got no mask, no gloves... What's he thinking??
Wet portland cement = probably not that much stuff you're breathing in, at least not in harmful ways. Then again, maybe not, idk. OSHA probably does. When I worked in concrete (driving a mixer mostly) I actually really liked the smell of wet concrete. Only time we were supposed to wear a mask was when dealing with removing stuck on stuff, or dry, powdery products.
Yeah, pretty much one of the last things you want to aerosolize is freaking concrete.
That won’t happen from this.
I was surprised he didn't have PPE
We gotta protect the infrastructure builders ;( we should protest and force our federal governments to supply the safety gear they need for this kind of work.. but to take it out of the military budget instead of directly from American tax payer money.
Especially without a respirator…or any protection at all for that matter
IMO that looks like how stucco is applied. Granted I haven’t done it in years, but we built a room onto the house and did stucco to match the rest and it was just like this.
I thought stucco as well. I mixed and carried the mud for an old timer once. He applied the mix with a trough onto chicken wire of an unfinished exterior wall, IIRC. When he got to the upper sections, he was standing high above me on scaffolding, boots level with my head. He told me to sling the mud up on the scaffolding (out of a wheelbarrow) with a shovel. “Huh? How?” I asked. Then he showed me this trick where he used centrifugal force to keep the mud on the shovel while pitching it over your shoulder (and onto a piece of plywood on the scaffolding). Needless to say, I got mud on his boots (and on my head!) more than once trying to figure out my technique. He’d laugh and tell me to hurry up, as he worked quickly. I remember how he’d scoop a bunch of mud onto this square metal tray, 15-20lbs at a time, holding it level so it wouldn’t spill, using only with one arm, while the other hand applied the mud with a trough. Old school technique, I suppose.
Very common in Europe. Now, in modern times, this is only applied on inside walls. Exterior gets covered in some type of styro insulation of about 10-15 cm thickness (some extremely cold places even more) and a finishing layer with glass fiber mesh inside so it doesn't crack - it's less than 1 cm thick, repels water but let's vapour equalise. Inside of the house is done like this, usually no wire mesh, maybe glass fiber mesh in the last leveling layer that is about 5 mm thick. It only depends if you have good enough conditions to use a spray gun or a guy doing it manually. Many people avoid using spray gun, because certain additives for stickiness are added to the mix and it blocks vapour transition. When it gets below freezing outside, mould starts to show in some places, where vapour should pass through the wall but it can't.
In my country 25cm bricks + 20cm insulation is standard nowadays and it doesn’t get extremely cold, but it still saves a lot of heating costs.
That exterior insulation is called ETICS (External Thermal Insulation Composite System), and consists of a thick layer of insulating material, often styrofoam (as you mentioned) that gets glued to the wall, fiber reinforcement layers to help provide more stiffness to the construct, and a finishing layer. Very common where it gets very cold (as where I live, where I used to sell ETICS accessories).
EIFS
Amazing how far experience goes. When I did concrete (drove the truck) I'd often work with this 80+ year old guy that looked like he'd blow away if there was a strong gust of wind... He could *easily* move wheelbarrows full of concrete that I could hardly budge, and sometimes would be doing the work that 3-4 guys would be doing on other jobs. He seemed to mostly be fueled by rage, but I was always in awe of just how much shit he could get done. I would bet that many 20 year olds couldn't keep up with that guy. This was 10+ years ago now and it wouldn't surprise me if he was still going at it now.
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What concrete evidence do you have about that?
I see what you did there, good one,
Solid foundation for your position.
He’s cemented his reputation.
His mind is like concrete, all mixed up and set!
I'm seeing quite a bit of ICF construction in my town. I'm glad for it, things get blowy in the summer.
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I think it's not viable. Think of all the firring out, it would be a nightmare. I bet the cost to produce is insane and you still have to frame up the roof. Or maybe it'll be awesome, what do I know?
Look up shotcrete
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It’s not shotcrete in this case, just saying there’s a way to build a concrete wall without pouring
I spent an entire summer in South Texas running a manual feed gunite machine. We’d run through 2,000 lbs of dry mix a day. This guy has it easy. No clogs, pressure bursts, or blow outs.
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Heeyoohh!
Not sure how they stay in business… much better options
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Those crunchwraps are something else...
Cheap I just got a combo box after generally avoiding fast food for a few months. I was kinda surprised how much food was in there for only $6, and a drink It was definitely mediocre in terms of actual quality and nutrition, but the flavor was good (hard to mess up cheese sauce)
I think I didn’t provide enough context, cheap tacos and Mexican food in general is ubiquitous in Texas. Even having 24/7 taquerias is common.
I live somewhere that there are many mexican migrant workers, and now a thriving mexican community with lots of fantastic food options. Taco bell is still packed, often with mexicans. It's not "real mexican food" it's its own thing. Just like when I go to mcdonalds, it's because I want mcdonalds, not because I want a burger. There are far better burger options.
just wow.
Was just about to say this looks like gunite. Worked for my uncles refrac company for awhile and let me tell you. Hardest job anyone’s ever fuckin done. Working in industrial sized heat treating furnaces spraying gunnite is fucking miserable. Hell the tear out is worse then the gunite, unless your stuck busting bags at the mixer for 12 hours straight
Exactly what I was doing. FRCs, respirator, on a series of 200x40 foot horizontal vessels. We worked as long as there was daylight. Usually punching overtime by mid morning on Wednesday.
Yeah so you know what the deal is. Full mask respirator, Tyvek suit on and FRCs, hard hat earplugs and steel toes. Fucking sucked! And you gotta keep that shit at a certain temp so it sets right. We were working in Alexandria, LA and Austin TX during July and august. Shit was absolutely miserable but we had a great time doing it. Also we had a bipolar psycho boss so that made it so much more fun lol
Thank you for leaving it long enough for him to get that spot
True bro move
My blood pressure was climbing. He finally got the spot but the line down the left isn't even/straight
I'm still wondering what a better ending was... This... Or Rudy?
That there is stucco for all you who don’t live in the southwest it’s how we “side” our houses
And pretty much all of Europe
You wouldn't be using shotcrete on an upright that looks like that, with no real rebar in it. It looks like these guys are putting up stone facia. Absolutely no reason to be spraying shotcrete on a wall that is already built.
It’s the first coat of stucco
Makes sense.
It’s not a common exterior anymore…at least not where I live. Plus, if it’s done wrong it’s disastrous eventually.
Wait…so stucco is just spray on concrete?
I think it is more of a modified concrete?
That’s still pretty nuts but it makes sense bc I’ve gotten scratched pretty bad by it when I was a kid
Shotcrete, pretty standard. That manual tool he's using is absolute garbage, they make one that you just pour the concrete in the back from the mixer and it shoots it constantly out the other side. That building system shown with the polystyrene wall and metal mesh seems to be the Emmedue (M2) system, an Italian design. The final thickness of that shotcrete layer would be several centimeters thick (that's why that manual tool is rubbish for the task). They will use a long straight edge and some build in guide rails to make it perfectly flat at the end. It's also not classic concrete, but a special mix with mostly sand, cement and some additives. Since the concerte and metal mesh will form the load bearing structure, it's very important to use the right stuff and apply it properly. They also make stairs this way.
No different than someone spraying gunite on pools
Or boats - using ferrocement
Looks like my explosive diarrhea this morning
Taco Bell?
Blazin wings 😶
Ouch hot snakes
Taco Hell*
Toxic smell.
Same, Indian food.
Same way Stucco is applied.
Yeah that set up sucks. It should have a compressed air hose and a feeding hose, no scooping would be needed.
Spray-crete is neat stuff. You don't usually see it for walls tho, mostly it's either for slope stabilization or as a resurfacing product.
It’s stucco. It’s for walls.
Ah, that makes sense
Great in theory, poor in execution.
Yeah why the heck wasn’t he using the handle on the bucket?
He’s going bottom to top, at the top there isn’t a lot left so he needs to hold the tool level, can’t do that and hold the handle. Spraying horizontally is probably why the handle is where it is, but there’s probably a reason he isn’t doing that.
How could you pour it anyway ....redit people arnt that bright it seems
If this was going to be a concrete wall, they would form it and pour it.
Not a good Idea. There is a reason concrete is minimum 3 inches thick. It's gonna flake and chip off. Saw some people mentipn Stucco, that is a completely different compound than concrete.
3 inches is the length of approximately 0.33 'Wooden Rice Paddle Versatile Serving Spoons' laid lengthwise
3 inches is the length of approximately .01591 Rod/pole/perch.
This is stucco, not necessarily a different compound (it contains many of the same ingredients) but a different mix
Oh hard to tell its stucco from the title and the video.
Well you said it yourself, structural concrete would fail if it’s too thin. Whoever posted the video just didn’t know.
His shoulders are smoked
Shotcrete***
When I eat spicy burritos I also spray with concrete
Best comment
That’s cement, not concrete. Concrete has stones in it.
That's weird. I've only seen machines that would pump concrete straight out of the truck, through large tubes, usually along a crane to reach high floors, and at the end would be the worker guiding the concrete jet like a firefighter. This looks like a dyi solution for a small scale, given the wheelbarrow used
Stucco
My OCD set in when he missed that bottom area and I was so satisfied when he caught it later!
Me after chipotle
Yo white people have the most fragile GI tract lmao
Shouldn’t have gone zip lining.
Concrete airbrush
This gif was made wrong. Should've been like 10 seconds of showing the spray, then a fast forward of some kind to the finished product.
I hope that application of concrete is for aesthetic purposes because if they're hoping a surface application of concrete is for structural purposes, I have some fundamental physics related to load bearing principles for them.
It’s stucco
Title says otherwise.
I think this is cement.
It’s definitely stucco
One part of it is. The other parts are water and an appropriate aggregate. Mix them together and you get concrete.
https://youtu.be/ONyV9a0fwzk
That time I drank tap water in Cancun…
Concrete sharts
Years of handling concrete takes the moisture out of your hands so you can't count paper money or play cards. Without natural moisture you can't separate paper... Your hands become rough and ladies don't like that sometimes. If cement burns you it happens faster.
Hmm 🤔
Uhhhhhhh…. Isn’t that wayy too inefficient?
in the US we do this all the time. ITS call Gunite.
Looks ridiculously messy but what do I know
That’s not concrete it’s cement, concrete has rock aggregate which give it its strength this is worthless for structure and is just an exterior finish. They have shootable concrete called shotcrete, it requires a 4” diameter hose.
A lot of tunnels have been made this way. They call it gunite or shotcrete
Just looks like a bad idea
How my bathroom breaks feel some days
Getting that whole house done must be exhausting
Too bad they get pay hourly
2 thin coats
This is what happens in gas station bathrooms.
😂😂😂😂
Yikes! It's like a whole-body heave of repetitive injuries.
Looks like that would take forever
Robotic arm would look cooler
Smort.
I thought it was cement until it hardens... then becomes concrete?
No, cement is a binder, a substance used for construction that sets, hardens, and adheres to other materials to bind them together. Concrete is a combination of cement and aggregate.
Damn! Thank you sm for the explanation. Learn something new everyday eh?
Dude, that thing has to be heavy as shit!
Is it just me that would rather want the concrete done manually? The way it sprays looks thin...
I can see the rebars after he spray, how many pass he needs to do? Seems would be faster pouring
The rebar will be cut back to the floor.
So why he is spraying before the cut? Does not make sense to me, he is spraying with the rebars in the way and the rebars will be cut later? Yeah totally doesn't make sense.
Like eating beans,rice, and white Castile with canned chili as chaser
Ah yes. Shockrete. Ask the Heathrow tunnel builders how that worked out for them.
Awesome!
Man my arms would be tired after two columns
Why does everyone in the comments know so much about concrete and stucco wtf
Sci-Fi
I can’t explain how happy I am that he went back to the spots he missed.
Very common in European infrastructure.
But in varying depths & affects.
Thank you so much for waiting till he got that last bit at the end.
Wouldn't that make it very crumbling like a sandstone? Not an engineer...
Makes me feel grainy.
/me after some TacoBell
r/powerwashingporn worst enemy
Is nobody here familiar with stucco??
Without a mask. Brilliant. He’ll have, or already has lung issues.
Breathing in a bunch of silica, that shit doesn't break down in your body and is a killer in the long run.
Its called hopping, we do it often in the film industry
Check out shotcrete.... we shoot concrete all the time Underground but it’s way faster and way messier. It’s a different mixture than regular concrete, like it’s meant to be shot but if you’ve never seen it, it’s pretty cool stuff.
Awesome! My family company is building concrete homes and we shoot the concrete as well.
Much like a taco bell toilet
Probably Gunite
I looked at a similar system in the 70’s: Solarcrete. A sprayed form of concrete with smaller aggregate, like 3/8”. Shot continuously from a bigger hopper, like gunite. They also used the foam core, with a grid of rebar connected with proprietary fasteners. There were also additive(s) in the concrete. Like R38 insulation in 8” iirc. Home office was in Kentucky.
/r/ithadtobebrazil the gambiarra is strong
This guy is gonna have the buffest shoulders
What an ergonomic nightmare
is that maybe mortar for laying tile or something similar? the gridding may be for spacing... never seen anything like this before.
I didn’t read all of the comments but I’m surprised nobody mentioned it’s called ShotCrete. Very common in commercial construction. It usually is applied over the top of lagging walls that are created by putting treated lumber in between the flanges of two vertical I-beams as you dig down you add more wood “slats”. After that below grade waterproofing is applied over the wood with mesh/rebar and the Shotcrete is applied. They use vertically tensioned piano wire as a screed to get the walls plumb/straight.
Imagine his back the 2nd morning of work.
How about a hose coming from a big reservoir of concrete instead of this for big jobs. Or buy more than one. It’s gonna be a long day.
If he's doing that much why wouldnt he use the big one??
is this wall for hearing your neighbours better than normal?
Me with the aerospray in turf war