With the help of a hydraulic press, we will test the strength of concrete and reinforced concrete
Пікірлер: 125
@billj56452 жыл бұрын
Your concrete did not have the correct proportions of aggregate to make strong concrete, that's why it crumbled so easily. There is a lot of science that goes into the proportioning of the elements that go into concrete, change the amount of one of the materials and it can have a significant affect on the strength. In addition if you are trying to add reinforcing to strengthen concrete you have to consider what strength you are trying to reinforce for, and the reinforcing configuration not only has to match that but it has to be able to transfer loads from the concrete to the steel. The reinforcing layout in the video is incorrect for reinforcing against compression, and you would have to use much smaller types of reinforcing in order to be able to transfer loads from concrete to reinforcing.
@destroyer75382 жыл бұрын
Couldn't say it better myself my dude
@halbeik2 жыл бұрын
Watching this video "reinforced" certain knowledge I had when I studied mechanical engineering. They're fine generic demonstrations for what you're talking about. But now I'm yearning for an in depth video(s) of how engineering concrete is done, and would love to see videos of such things with proper hydraulic press demos that explain "you see, this is why we don't expect bricks to hold things in tension. or see the real difference between using aggregate with rough surface vs smooth or porous vs non." (not sure if those differences actually matter much vs size and shape, just pulled some properties out of my head).
@ajge92292 жыл бұрын
You got it Engr.
@BZAKether2 жыл бұрын
Would it help to let the concrete "rest" for longer periods? And how long to get max resistence?
@__cal__2 жыл бұрын
@@BZAKether yes, and you have to water it too to increase the strength
@mattt1986543212 жыл бұрын
My job this morning is to break apart and remove a reinforced concrete patio. After watching this video, you can imagine why I am not excited :D
@WDavidCastaneda2 жыл бұрын
🙈 And how did it go? 🙂
@ixflqr2 жыл бұрын
Pick axe. Definitely pick axe.
@AnasSuhaimi Жыл бұрын
Try drill a hole and pour vinegar on, let it sit for a night.
@TanveshDabholkar2 жыл бұрын
It is unsatisfying on so many levels for a civil engineer like me to watch all the blunders made. First of all concrete being mixed wrongly, later no curing provided to the concrete, and reinforced concrete beam subjected to compressive load, whereas we generally test it for flexure.
@right584Ай бұрын
Concrete and reinforced concrete are stronger than what is shown in the vid
@jonb9142 жыл бұрын
I think this is the first hydraulic press video I've seen where the forces being applied are actually relevant to what the material is designed for
@mhxxd410 ай бұрын
Actually it's not, those rebars are not designed for those forces
@shankylezapanta14648 ай бұрын
Reinforcement steel are for tensile forces of the structural members like beamss
@tonyhawk1232 жыл бұрын
Roman concrete vs modern concrete would be interesting. The roman concrete uses ash from volcanos so not the easiest to source, and uses much less water. Obviously modern reinforced concrete is much stronger, but for the concrete itself it's still interesting - especially if we want to avoid the reinforced part to avoid rusting and maintenance. Roman concrete will last thousands of years while reinforced concrete will eventually fall apart as it rusts from the inside out.
@billj56452 жыл бұрын
Modern concrete uses various types of ash to supplement the bond of cement as well as other chemicals, there is a lot more that goes into concrete besides cement, water and rock. Modern concrete mixes have been made approaching the compressive strength of steel. To the average person concrete is what they see in a sidewalk but sidewalks are the bare minimum that will become gray and hard, the concrete used in buildings where significant strength is required is very hard stuff. Hit a sidewalk with a hammer and big chunks break off, hit a piece of structural concrete with a hammer and the hammer bounces off, maybe without even leaving a mark on the concrete. This stuff may be at least 5 times the strength of a common sidewalk.
@patrizioaguilarfuzinato20942 жыл бұрын
Nah, just use rebars galvanized with a sacrifice metal (like zinc or something like it)
@taylorsutherland69732 жыл бұрын
The alkalinity of wet concrete passivates the rebar. So unless there is a harsh salt environment the rebar won't rust. There is a lot more to concrete than you think.
@alanselveira23052 жыл бұрын
Muito bom seu conteúdo!!
@triggerhappy88722 жыл бұрын
But how long did you let the concrete set & dry for??.
@lucashouston6512 жыл бұрын
Be interesting to see various types of micro rebar like Helix 525 or fiber reinforcement tested this way.
@timmusician50602 жыл бұрын
“Don’t repeat at home”?? So, we should NOT use our hydraulic press to do this? I guess I’ll use my hydraulic press for other purposes then 😳🤷🏽♂️
@xtremetestzone36652 жыл бұрын
Exactly, and like we all have a 100 ton hydraulic press anyway 🤔😆
@gradient25032 жыл бұрын
I feel for this man cleaning after every video he makes
@TECHNICUSChannel2 жыл бұрын
Very good experiment bro!
@ekenemadunagu16542 жыл бұрын
Im interested to see the boundaries material strength of buildings tested to the limit 💪
@nottelling84402 жыл бұрын
@Crazy Hidraulic Press Another good video; thank you
@chriswentworth66242 жыл бұрын
I'd like to see a test on the concrete used for prison cells. It's more dense then everyday concrete.
@letsgameawayourproblems43702 жыл бұрын
Why would you want that ? Thinking of how easy your escape is gonna be??
@chriswentworth66242 жыл бұрын
@@letsgameawayourproblems4370 Nope. Just curious
@karlwschipul50792 жыл бұрын
@@letsgameawayourproblems4370 How many prisoners hide a 100 ton Hydraulic press in their cells?
@rostislavvladimirov4351 Жыл бұрын
Thank U very much for this experience.
@George.Coleman Жыл бұрын
Impressive what steel reinforcing does
@ChristianWagner8887 ай бұрын
You are comparing apples to oranges. The "concrete" mix was apparently not standardized for all three samples. One mix had gravel, while the second mix lacked gravel. The cube also had no gravel. The ratio as well as the water content was not given and may have varied. How was the curing done? The reinforced vs unreinforced samples should have been tested as beams, for example with two supports at the bottom and one load in the center. A sand and cement mix is not concrete, but mortar which is much weaker. Your cube only had about 860 psi of compressive strength. The antique concrete cube performed comparatively well with about 2500 psi, which you could have reached easily with modern concrete after 28 days.
@komandan_meong86012 жыл бұрын
6:21 that part took me by surprise
@3-02cesaromaralmeidavea911 ай бұрын
In this case the concrete may have more resistance depending of the proportions on ingredients. And results would be more efficient with a cilinder with the same area of hydraulic press
@littlehuey56792 жыл бұрын
How about doing that with the fiberglass rod ?
@MrHartless20072 жыл бұрын
That's not concrete. It mortar. Proper concrete is mixed with stones.
@jamesjazwinski44122 жыл бұрын
He should have wrote Mortar vs improperly reinforced concrete. His reinforced concrete did have stone. But yeah so many things wrong with this.
@xtremetestzone36652 жыл бұрын
Very interesting video! A block taken from the great wall of China vs Egyptian pyramid would be a good one 🤔👍
@jcptanksales91502 жыл бұрын
2 rocks
@nasuegaming12552 жыл бұрын
Just buy some granite for the Egyptian specimen
@mobjwez2 жыл бұрын
really cool
@angr3819 Жыл бұрын
It would be good if some on here went and watched one or two of the Wise Up videos and gave their views. What was blocks hewn from rocks and what was concrete?
@larryphillips41642 жыл бұрын
Make different layered carbon fiber and foam structures and then crush them please. Maybe 5 inch square each with different thicknesses etc.
@xvadripzx2 жыл бұрын
I appreciate the fact
@NabinKabiAlAmin2 ай бұрын
good job
@karlwschipul50792 жыл бұрын
question about the "iron" @0:45 . Which grade of iron is this? There is more than one. Some of them are quite different from others.
@guyprattii31152 жыл бұрын
First of all it’s steel not iron. Second, it doesn’t matter, the concrete failed not the steel.
@sergiocalad2 жыл бұрын
Wow, it actually failed because of punching shear. Obviously, this specimen had a lot of mistakes but it was pretty cool though.
@MrMarkar19592 жыл бұрын
wow👍🏼We used beer cans for filler back in the 70's.
@pe41534 ай бұрын
I have yet to see any reinforced house foundation fail. If it settles deeply, I'm convinced you could just jack it up from a corner and fill in with gravel
@datheat28542 ай бұрын
I seem to remember rebar needs 50mm covering / as well as correct ratios of aggregates?
@TsunauticusIV2 жыл бұрын
Do fiber reinforced concrete too
@kenisthistoo74992 жыл бұрын
Wow!!
@spicydiarrhea56622 жыл бұрын
I wonder how composite concrete will hold up, test of GFRC should be interesting
@psikoj2 жыл бұрын
Try a block of ice, and one of the same dimension but with for example cotton inside. It is like with the concrete, the strain main direction is broken by the additives.
@AlexanderA80 Жыл бұрын
You need to test this with glass fiber reinforced concrete (short fibers at whole volume)
@justinholmes56148 ай бұрын
I get 90 newtons plus from a limestone mix. I’d like to see you crush one of my cubes
@cretuionelalexandru84102 ай бұрын
Salut ce dimensiuni au?
@mohammadrezaalipour18632 жыл бұрын
there were a lot of wrong conditions in these tests especially in the reinforced one. anyway thanks to the Civil engineers 🌹❤️
@Vip__honey2 жыл бұрын
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@Evra222 жыл бұрын
Same thing I guess?
@valletas Жыл бұрын
All the guy did was buy a hydraulic press and film it breaking stuff How is it a "masterpiece?"
@Inuvialuq2 жыл бұрын
I wonder... What would happen if you found a way to replicate the recipe of the fortress concrete and reinforced it.
@X_mano2 жыл бұрын
I don't think it's about the recipe I think it is time that's strengten the concrete, I believe I've heard that concrete gets stronger with time.
@ykyjohn Жыл бұрын
I would like to see an iron pipe or steel pipe filled with concrete. I think it will be the hardest thing to press. Will it? Reason is that the metal pipe will hold the concrete and the only way to crush it is such force to make the concrete inside to tear the metal. OBS, the cement at 5:00 is not a concrete and it starts to at 2.6tons about it despite it got up to 6 tons, i guess if it was in a build that first tear would already be the doom. Would be really nice to see, the tests for cement, normal concrete, concrete with mixed sizes of rocks, and of course each mix before now with some frame in it. That would cover the most common combination and get how strong are each. Really would love to see such experiment.
@tomazovich7862Ай бұрын
To have credibity in your results you should have an horizontal face . In your case , the shape of the dry concrete isn't the best because in the first experimentation the force apply on the paving concrete induces shear forces ... and they are lot of mistakes in dimension and how you apply forces . You have to speak about the other test like "cône d'abram" and " air occlue" and the different type of normes
@gbrown92733 ай бұрын
Why does the "headlines" say "20 ton" when the gauge says "5 tons"? and the other headlines says"100 tons and the gauge says 22 tons" ??
@fernandopedroso2159 Жыл бұрын
Só pra avisar, o "concreto" sem brita não é concreto é massa forte, e o concreto com brita e ferro é só concreto não é necessariamente concreto reforçado.
@eduardodiaz54592 жыл бұрын
I suggest to make the test with concrete reinforced with carbon-fiber, glass-fiber, scrap of steel, etc.
@slipperyslope39125 ай бұрын
Do fibermesh please. Also, mix it properly.
@aaronb67272 жыл бұрын
Who coulda guessed that reinforced anything would be stronger than not?
@zennvirus79802 жыл бұрын
You should have made one in the shape of a heart.
@viktorivanisov90572 жыл бұрын
Когда видосы на русскоязычном будут ?
@user-pz8rb5od7e2 жыл бұрын
Это видео дубяж с русского. Оно есть на его русскоязычном канале
@viktorivanisov90572 жыл бұрын
@@user-pz8rb5od7e ну так надо делать новые видосы
@lukaszluk26142 жыл бұрын
it was very fresh
@wileu2 жыл бұрын
It's hard to compare all the scenes. Instead of giving the force acting on the entire foot (and you use different foot sizes), you should standardize the results, e.g. 100 kg/cm2 or 1000 T/m2.
@noobgamertelugu77242 жыл бұрын
1 st like
@Paramveer1111942 жыл бұрын
Suggestion to everyone - If you gonna do compressive test on concrete ,you should consult with a fucking Civil Engineer.
@iminsideyourwalls9432 Жыл бұрын
Rectangular specimens should be tested for bending,not compression
@jamesdarylgalvez71362 жыл бұрын
Don't try this at home I'm dirt poor, I don't have the cash to even buy concrete
@kristophershaffer28762 жыл бұрын
Should have added fiberglass to the reinforced concrete
@Cold-DEATH2 жыл бұрын
Antique concrete is so strong as it contains volcanic ash so it will become stronger and stronger over time
@Jay-cm9tr2 жыл бұрын
All concrete gets harder over time. But that doesn't matter very much. It gets the 90% of the hardness within 28 days. The other 10% is the over time part.
@netby8 ай бұрын
Exactly...
@SINfromPL2 жыл бұрын
Loving all the crpto/nft spambots here
@sselim2 жыл бұрын
nope.... you couldn't make modern concrete right....
@user-um9sl1kj6u10 ай бұрын
Mind you, concrete has terrible lateral strength. And by itself, decent compressive strength but not like graphene carbon fiber, or nanotubes for that matter. It’s just expensive
@ivanboskovic12602 жыл бұрын
Let that concrete alone, you bully!
@Rohrzang-Loisl2 жыл бұрын
Leider ist dieser Test überhaupt nicht aussagekräftig. Die selbstgefertigten Betonwürfel weisen einen viel zu hohen Sandanteil vor und wurden aus ungeeigneten Material angemischt.
@osamah1996 Жыл бұрын
That's unscientific ~ you can't just create concrete using a random amount of cement and water. try testing the old concrete to know it's strength then to recreate it using the correct components ratios of modern concrete that would by interesting. or you can test the concrete from a different concrete factory to know which one is better.
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Check 6:25 there is golden coin..
@eladioalonso89062 жыл бұрын
No creo mucha gente tenga una prensa en su patio trasero, es más muchísima gente ni patio trasero tiene
@locoloco6662 жыл бұрын
Russian Chanel #kicaki #cie #znajda
@leonelcaprielitzep8822 жыл бұрын
Your concrete needs inmersion water
@weprayforcars7 Жыл бұрын
reinforced concrete is WAY stronger than that,you did not have the correct proportions of aggregate my guy
@amirpeyrovi43692 жыл бұрын
Dude that is NOT the way to make concrete
@davis78272 жыл бұрын
This is not correct... Hydraulic press on concrete after 28 days curing... Then well see how strong concrete is
@jamesjazwinski44122 жыл бұрын
Hey stated that it was many months later after pouring. But everything else about the concrete is incorrect.
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You don't know what you're doing
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