We make a propshaft out of reinforced concrete

[@MrWilliam932]

I would love to see a Lada with the engine disconnected from the wheels and connected to an airplane propeller

[@TheJeremy5599]

I don't think it'd work very well, but I'm also very interested in that now! I bet the 0-60 would be terrible,but once moving i bet it's very smooth with acceleration haha

[@PrismaticFrank]

Thats a great idea !!!!

[@TheJeremy5599]

Also if they tried using large propellers on the multi engine lada that would also be awesome to see

[@jwalster9412]

I think they didn't something like this year back.

[@AndyShell]

wow

[@jerryb1234]

"Something is seriously wrong", NO SHIT VLAD!, you have a concrete driveshaft,😆, great video guys, thanks for sharing.

[@mjr643]

Thank you very much for bringing us a very new episode (was released only about 2 weeks ago to Russian fans, I tried to watch with translated captions). But keep up good work on the translations!!!

[@vinzentlohberger8685]

I would love to see you replace every fluid in an old diesel car with vegetable oil, and i mean every fluid. Brake fluid, Coolant, Diesel, Engine oil, Gearbox oil, Differential oil. And then see what fails first.

[@MazdaRX7007]

It might take realy long.

[@northcarolina209]

Lol

[@gabrieljordan9977]

Thats a good idea indeed

[@Root_T]

that's so dumb its awesome

[@jeremymcadam7400]

Longest youtube video ever. i like it

[@jeffnpatricia]

From a gear headed American. The tv cannot make us hate each other. I love your content and your humor. I wish you success and a full belly for you and your family. Please keep the whacky auto content coming…..

[@gordonlawrence1448]

I have studied concrete a little in materials science as part of a design course. We were doing some basic experiments with it like putting it under compression, tension, vibration and torque loading. Even without re-bar it's pretty good under compression. For tension and side loads it needs re-bar. More to the point tensioned re-bar. It's not good under vibration loading at all. However torque loads are the worst of the lot unless you use re-bar that is tensioned so much it boggles the mind.

[@traBylliB]

Try reinforcing the rebar by welding some cross members every four to six inches, so the rebar doesn't twist. Wrap chicken wire mesh around the rebar. Try using Quikrete or whatever similar product you have. Leave the PVC on and drive at high speed for half an hour. Remove the PVC and see if the concrete is still in one piece. If it is, drive some more and see how long it lasts. Have fun!!

[@frankh.3849]

Great now my wife wants a concrete drive shaft

[@reecehill953]

This made me laugh more than it should have

[@watchvideos9104]

Lmao 👍🏾

[@NIGHTOWL-jf9zt]

To go with her lead foot? HAHAHA

[@frankh.3849]

@@NIGHTOWL-jf9zt sure we will go with that 😁

[@sonofliberty92]

Love this channel. Literally watch it before bed every night. Much love from USA!

[@beezball]

Concrete... It's so good at being flexible and dealing with sustained intense vibrations.

[@inmyopinion6836]

OR, it could be all the re-bar welded up inside?

[@inmyopinion6836]

@Jenny Melo Me too

[@inmyopinion6836]

@Jenny Melo Re-bar carries torsional load causing the concrete to spall.

[@inmyopinion6836]

@Jenny Melo BAHAhahahahah..... I know! Me too🤪

[@twocvbloke]

Torsional forces (twisting as the engine applies power) will have had an effect on causing the concrete to crack, and the centrifugal forces when it's spinning cause the lumps to break off and go byebye... :P

[@chrissmith7655]

Yes, I agree with your explanation.

[@barkchip1872]

Have you thought about making a Propshaft with Rubber in Torsion? Like the suspension systems as designed by Englishman Sir Alex Moulton dcd.? 2 tubes, one inside the other, with the space between taken up by a liquid layer of rubber which then hardens. Then you have the 2 tubes bonded to each other. It would give a very smooth take up and drive, insulated as it is by the rubber. Has proved to be extremely durable in suspension systems as the inner tube is in torsion to the outer tube. Have a go - you may have to experiment with the density of the rubber you use.

[@AlienLivesMatter]

perhaps rubber and liquid asphalt.

[@Tumbleweed_Tx]

next time, make a central rebar, check that for balance with the u-joints, then build the rest of the rebar/concrete driveshaft.

[@ianferreiraian]

03:16 the voice of BMI Russian imitating Vlad doing some effort 🤣🤣

[@will24655]

I was looking for a rock solid prop shaft. Seems like a perfect solution.

[@Root_T]

great camera angles!

[@russbilzing5348]

I believe that I've come up with something that might bear looking into. Once again, replace the drive shaft but with reinforcing rod, laid straight, bundled and then twisted into a spiral of the right length and welded, piece by piece to complete the unit. If the rod is thin enough, it could be braided and not welded since it would enter and leave the pattern in both directions.

[@michaelschranz5666]

How about a large wire rope, cable, you could probably find a piece at a shipyard

[@UberLummox]

Love that freaky wagon turned into a 4dr. pickup!

[@yeyeboi8989]

i would love to see a epoxy propshaft

[@thebad300]

depends on its thickness of it , it is said the hoover damn is still curing

[@Eric-n-TN]

I think if you strained that rebar it would help....Or maybe use fiber reinforced concrete. Great video as usual!

[@johnfisher256]

That fiberglass reinforced concrete is tough.

[@aaronbinner]

Por favor conseguem converter um motor lada para funcionar com vapor? Can you convert a lada to run on steam? you're great! congratulations directly from Brazil

[@KekusMagnus]

im impressed it moved the car at all, i dont think anyone expected this to work

[@tangowhiskeytrailertranspo6662]

I thought Vlad was going to dump the clutch as soon as he got out of the shop and then it would be an immediate fail.

[@rocknraptor3195]

I expected it too work pretty good at low power & speed!

[@busyguy7479]

another fun video if the world would just slow down take a look at the simple things of life and enjoy doing things to have fun .these videos are a breath of fresh air....kudos to u all...

[@imronson4366]

From smallest to biggest how many tires can fit inside of each other, on one rim. No air

[@joshweickum]

You guys have great videos man

[@BITTYBOY121]

That was funny ! - Try using a heavy duty chain as prop shaft next time and see what happens !

[@deant876]

You can see it looks like the rear yoke is off center to the prop shaft. Also if they welded some sort of cross bracing inside, to keep the rear from twisting. And finally if you could figure a way of putting tension on the rear prior to filling the pipe with concrete

[@helpermonkey6641]

See if using fiberglass in concrete makes driveshaft stay together

[@5.43v]

GFRC

[@crazzywolfie]

wouldn't make a difference with the way they did things. you can clearly see the driveshaft is not centered the moment they start moving. being out of center is harder on everything which in turn also puts more stress on the driveshaft.

[@Erik_Swiger]

Garage 54, I made an animated GIF of the exploding propshaft, gave you attribution. Wish there was a way to share it with you. I posted it on Facebook.

[@RubyRhod]

Concrete has close to no tensile strength. Torsion is similar to tension, so this won't work at all. Maybe if you somehow pre tension the shaft it might work. Now I'm going to watch the video.

[@RubyRhod]

It hold up the torque on flat ground. Wow! But it failing had nothing to do with vibration. The hill put more torque on the shaft and that led it to fail.

[@porthos9502]

OK Tries. light weight fiber reinforced shaft. And balance it.

[@vincentrobinette1507]

The rebar didn't have the torsional stiffness to protect the concrete. concrete is strong in beam and compression, not tension, or sheer caused by torsion. Re enforced concrete actually has pretty good beam strength, because of the tensile strength offered by the rebar. as well as compression strength, meaning that the vibration wasn't the problem. It was the torque. The rebar twisted easily, which is what crumbled the concrete.

[@lol_surprisefoo]

Construction building codes used call for 28 day testing to determining if the mix design of the concrete has achieved its intended *compressive* strength (for example 4000 psi @ 28 days). Some specifications call for 56 day testing, but that is exceptionally rare. Notice I stated *compressive strength*.... This is in contrast to the rotational or torsional forces that your prop shaft experienced. You may find it interesting that concrete continues to gain compressive strength as it ages. Even hundreds and hundreds of years after it was mixed and placed.

[@nocojaviem]

Great experiment as always. I suggest to instead of propshaft connect rear axle with chain.

[@1one3_Racing]

The concrete would have very little mechanical bond to the yolk. So the driveshaft is actually made from rebar. The concrete is just stopping the rebar from twisting up.

[@Velktron]

Well, that held together far longer than I imagined. I expected it to just get wound up and shatter at the very first hint of gas :-)

[@Mosfet510]

A car with a with a built in lathe, I like it.

[@Al_Pollock]

It’s a shame the union wasn’t mounted correctly.

[@davezul4396]

No worries, it has to wear in before it can wear out...

[@Namington]

If you ever want to make a "real" reinforced concrete propshaft, rest assured that you can make one that would be quite permanent if you consult a professional. Some basic tips for stronger concrete, for just anyone: use as little water as possible, ideally have your reinforcements interlocked or welded at 90 degrees and/or use a mesh. For projects requiring a lot of strength, select the right formulation of concrete and the correct size aggregate, and almost definitely consult an expert and carefulyl read the instructions on the concrete you are choosing. For desperate projects where you need quite a lot of strength but can afford for it to not last and don't have access to all the right materials, still use minimal water, and use wood as your reinforcement material, and ideally just nail or screw boards together any way you can.

[@jonnya6107]

Good job the welds broke at the gearbox end, that's all I can say! Smoothied Vlad! xD

[@ouch1011]

If the driveshaft was installed while it was curing for a month, it almost certainly sagged. The driveshaft was out of round from the moment you started moving, so it had no chance of working.

[@unicyclingistheshit]

my thoughts exactly, should have been left flat to cure. Also, welding joining pieces between the 3 central bars would have helped too

[@DerPfoertner]

3am in the morning. I should go to sleep. KZbin: let’s make a driveshaft out of concrete

[@shauljonah6955]

Great video as always.

[@ckl8a]

28 days while kept wet gets about 90% total strength. but gains no strength once it dries out. either way the result would be the same but it could have been slightly stronger if cured properly. adding a bunch of hoops to make a sort of rebar cage would also help a lot

[@andrewpipicz9484]

It sounds like a steam engine train going down the road lol

[@2drunksracing]

Jack car up, put in gear and remote full throttle then watch the carnage.

[@johnperalta9415]

Thats not because of the vibration, thats caused by the twisting motion. Concrete is great in compression load but when twisting force is applied, it crumbles

[@DudeDieAlready]

So natural progression would be the heaviest drive train possible. So super heavy flywheel, prop shaft, and concrete wheels

[@leopiipponen7693]

Try resin + carbon fiber :)

[@davidmyers5702]

Need to try the same thing but cost the whole shaft in a sprayable bed liner coating to help keep it together

[@67comet]

Clear Resin Prop Shaft with a carbon fiber center rod would be fun .. Love the channel, always makes me go "Hummmmm" ..

[@Jkauppa]

use rebar only

[@guuuu666]

You should try to twist rebar and other metal tubing to make ornamental stuff.

[@SerPurple51]

The car sounded almost like a diesel with the knocking sound

[@kentworch]

Here in America people in my town do that all the time. At least once a week I see some young boy driving around in a jacked up truck blowing a train horn in my town. It's something the newbies have to get used to around here. At least in the South.

[@richardrohr5106]

Did you reattach the rear hatch to the back of that lada? Does the back still function as a hatch? If not please do a video of making a wagon into a sedan with a hatch. Thank you.

[@joshuagibson2520]

I've never seen such a bunch of hacks in my whole life. I sure do like watching though.

[@MrGian91]

You can make the shaft out of the strongest material... if it is unbalanced it will eventually break.

[@shawbros]

break

[@busyguy7479]

its all good and down to earth fun no question about it.

[@stewart4711]

the high pressure injection pump lada wagon is sooooo tight wow

[@Christxff3r]

Try making a really off balance prop-shaft, like welding the prop-shaft in place a decent bit off-center. Maybe that will shake the car apart

[@PapiDoesIt]

Next time, reinforced concrete shocks.

[@AnalogDude_]

Try again, but mix in industrial chopped glass fiber or lots of thin gauge chopped metal wire in the concrete ... and it will be indestructible ... and using 10mm tick plates with holes to weld the rebar and attach to the u joints.

[@joe125ful]

Epoxy will be better anyway.

[@bradlys4978]

should have built the drive shaft to be a bigger diameter but should be hollow in the middle to save weight.

[@Semparo]

Well... seemed like a concrete idea at first... 🙃

[@AllanDeal]

What a solid idea lol 😂

[@idj20]

Where the propshaft was rubbing against some of that metal, it sounded like a steam engine puffing away.

[@512Colorado]

Now with "Authentic Chuffing sound"

[@Root_T]

I think the reason it seemed bent was because the rebar was welded so that it was off center. It could of been the weld location or perhaps the rebar was not straight down the middle. Technically the rebar is only acting as a way to secure it to the u-joints. Its kind of cheating if you really want to test just concrete. You don't really need the rebar though, that's for forces that pull, tensile forces. Since the shaft doesn't receive forces along its axis anyway, you could just have a metal plate with some shorter rods or bolts. That way most of the shaft would be just concrete. It's not a big difference I guess... either the concrete can handle the tensile forces from spinning or it can't, rebar or not. I might not know what I'm talking about... but I did do half of a civil engineering degree so, I also might have a small chance of not actually being wrong lol

[@ASDASD34RDFS]

Seeing you guys use the iron rebars, you could try and make your own flexible driveshaft. I don't remember who did it, but I think general motors made a fully flexible propshaft.

[@scofab]

It looks to me like the yokes were not properly centered to start with... with all that imbalance there really wasn't a chance. Also to internally cross-brace the rebar so that centrifugal force doesn't have as much effect on the concrete.

[@wdavem]

If that came apart going downhill that rebar would have really gotten going! This was good!

[@scoobysean555]

Was best of welding some little rebars welded to the long rebar than cover in concrete the twisting effect just crumbled it

[@deadaccount6135]

As soon as he said concrete i knew it wouldn't work. Any sideways forces or rotation induces expansion force in concrete, which is very weak against them. In the same way glass can be both strong and brittle at the same time. Concrete is very strong under compression force though which is why they use long bridges weighing tons. 🤔

[@kirkkohnen5050]

107% Excess Rate!

[@No1414body]

Should have used fiber reinforced concrete and made sure the concrete was centered on the b yokes both ends

[@MrLeafeater]

That lasted WAY longer than I thought it would.

[@rianhines8747]

How about an all electric Lada EV using only starter motors?

[@joe125ful]

Again this idea..

[@AlienLivesMatter]

stand them up to cure and fill it past the joint when pouring the cement. I was more interested in any gyroscopic (spinning-top) effect because of the extra rotational mass. in that rather centralised position. fill a steel drive shaft with cement as another experiment please. maybe even cornstarch nonNuetronioan liquid

[@wattsmith2656]

I Think the problem was that the prop shaft sagged while it was left on the car for a month to cure. Have we done concrete pistons yet?

[@johnbelwell2461]

I believe the propshaft should of had cups made of rings of rebar to each end and tied rings spanned all across the propshaft like small pillars used for signs on the street, and its diameter should have been slightly larger than the original, at least 1.5 times. That concrete was really bad too, it was more like mortar without aggregate, i would use a generic 3500-4000psi real concrete to get the results. Great experiment anyways.

[@tofudelivery8101]

How many times do you have to flush an engine with normal/synthetic motor oil instead of engine flush to get the sludge out of a lada?

[@DOCTRJ]

Its like the driveshaft wasnt centered on the differential flange

[@Root_T]

if you could secure the rebar better, it would be fun to see the rebar twist up into one twisted bar

[@granit6710]

Now the car has a peepee

[@tylermartin5560]

Center the shaft up on the yolk a bit better. Or atleast that’s what I think looks like the problem

[@terjejohnsen3651]

should have more reenforsement like a nett arround the 2 bar wit bracing in to the other bar then its many time stronger .должно быть больше армирования, такого как нети, вокруг 2-х баров с опорой на другой бар, тогда оно во много раз прочнее

[@charleslambiase5670]

Vladi Kruger does it again....💥💥💥💥🥰

[@joeanderson444]

I'm curious if the rebar without the concrete would twist together like a braid! This is a request for another video. To see if the rebar will propel the car after the three twist together tight enough!

[@ronmatson5502]

8:54 does that qualify as a ute'ed lada?

[@brandonyork9871]

Very cool keep crazy experiments

[@max.a3864]

❤ from 🇮🇳India

[@nick-rv8hc]

welp 2nd is also good

[@Incertus_]

reinforced concrete without sand? o.0

[@terrybaptist795]

How about instead using a lada engine in a lada attach a bunch of ery ockets onto a lada and if rockets can a lda go forward?

[@aneshramsaroop8436]

The splines were not centralised on the concrete pipe, the concrete pipe is straight.

[@inmyopinion6836]

You are lucky that thing didn't flip you over! LOL....... Use a ridged tube drive shaft and cut off one end after marking it for relocation. Then fill it with cement and re-weld it. The balanced weight should make a great flywheel effect.

[@DATONALKY]

Please get a 4wd tire and put a bowling ball inside, see if it stays at the bottom and turns but starts to roll around the inside when braking hard...

[@RadicalRevs]

need to sync the yokes end to end.