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Erik Schlangen: A "self-healing" asphalt

  Рет қаралды 168,016

TED

TED

Күн бұрын

Пікірлер: 192
@landdcollection
@landdcollection 12 жыл бұрын
He was straight to the point and presented a really cool project. Awesome video!
@srimansrini
@srimansrini 12 жыл бұрын
Erik Schlangen gives a talk about an important subject. How to recycle our roads in the innovative way. This idea will definitely save lot of money, energy and the most precious thing in our life - time. Excellent, need of the hour stuff and highly recommended.
@Creaform003
@Creaform003 12 жыл бұрын
when you push a wheelchair 2km a day, smooth asphalt is the most beautiful sight you can imagine.
@mycoffeemyday
@mycoffeemyday 5 жыл бұрын
How to regain hope in humanity. This is intelligent, thanks for sharing.
@FLOABName
@FLOABName 12 жыл бұрын
Great idea. The one problem I see is in cold climate like Canada where it freezes in the winter. Being pores I can see the water freezing inside and pushing the aggregate apart.
@Martial-Mat
@Martial-Mat 12 жыл бұрын
I don't think it has to be hot enough to melt metal. The steel wool is simply a conductor for transmitting heat through the material to the bitumen.
@Freigeist20789
@Freigeist20789 12 жыл бұрын
Yes. think about what heavy vehicles do. They generate shearing force between the granules of the asphalt and slowly destroy the binder. As shows in the talk these binder failures can be repaired. But I think you have a valid point, roads that has a higher load of very heavy vehicle need earlier repairing.
@sjwimmel
@sjwimmel 12 жыл бұрын
Freezing water is one of the ways the open asphalt can break. A lot of roads have already been paved with this open asphalt. If we use the demonstrated system, the cracks caused by the freezing water can be mended.
@Saremaw
@Saremaw 12 жыл бұрын
I'm not sure about it. Basically he gave us a very shortened demonstration of the weather effects on our current road system. You have a road that can break under cold winter conditions; maybe in fragments that could be moved about by constant driving with high traffic roads like highways or during collisions. Is it to say then that, when in warmer conditions this alternate paving method is so pliable that it can gap breaks and contain tons of weight without distortion? Idk if I buy it.
@loustoons
@loustoons 12 жыл бұрын
I think that's why they use a special gravel material sometimes called "class 5" under the asphalt.
@maxszhao
@maxszhao 8 жыл бұрын
isn't any asphalt already melting (self healing) under heat?
@rakifondip4996
@rakifondip4996 7 жыл бұрын
who tried to say you can shape by yourself.not heat
@WilliamJMRobson
@WilliamJMRobson 12 жыл бұрын
This is potentially a huge cost saver for municipalities and regional jurisdictions!
@chessfan6
@chessfan6 12 жыл бұрын
I would think an induction heating machine is necessary. For this to work, the steel in the asphalt has to get so hot that it melts bitumen. If your roads get hot enough in the summer that bitumen melts then they should be self-healing as they are now.
@PhattyMo
@PhattyMo 12 жыл бұрын
It may self-heal to some (minor) extent,from the heat of the sun. The machine used is an induction heater,it induces a magnetic/electric field in the strands of steel wool,and heats them up,very hot.(Similar to the microwave used on stage.) Thus re-melting the 'glue' in the asphalt.
@muumikopio
@muumikopio 12 жыл бұрын
There is usually a thick layer of gravel beneath the road negating erosion.
@sullyFL
@sullyFL 11 жыл бұрын
Desperately needed in Midwest USA where temps can be below zero in winter and 100+ in the summer.
@LFLvideos
@LFLvideos 12 жыл бұрын
I think the convenience is more important then the aesthetics of the asphalt road.
@DemonsRiver
@DemonsRiver 12 жыл бұрын
Skeptical ...in Canada our winters get pretty damn cold and the roads pop allover the place but summer is almost worse, roads take so much heat they are almost soup... interesting to see how it stands up to the elements.
@rugbyanden
@rugbyanden 12 жыл бұрын
The first few seconds I thought I was watching a cooking session with Hestor Blumenthal!
@Happytravellerkimmy
@Happytravellerkimmy 12 жыл бұрын
I wonder if this would work for winter roads? We have enormous potholes where I live and its mostly because of frost heaves and snow plows. Six months of winter really takes its toll (no pun intended).
@Zoidmatrix
@Zoidmatrix 12 жыл бұрын
That's awesome, now I know with which material I should pave my personal highway.
@altacus
@altacus 12 жыл бұрын
I don't think they use a laser to heal the road. They use an induction machine to heat the road, which is what cordless chargers use. Yes, there is wasted energy as induction methods are not terribly efficient, but it's much less energy than repaving a road. Also, the energy can be generated with cleaner means.
@pbezunartea
@pbezunartea 12 жыл бұрын
My only complaint is on the name, it's not actually "self" healing, but rather a sort of magnetically induced life prolonging techniques. Don't get me wrong, I still think it's great!
@Grunderworks
@Grunderworks 12 жыл бұрын
We already have this but we have porous concrete being much stronger and lasting much longer. I work at UNL on it all the time.
@TheLivirus
@TheLivirus 12 жыл бұрын
The innovation is to mix the bitumen with steel particles that allow for heating through the means of induction. The bitumen that binds the stones togeather is no different from that of ordinary asphalt, so if ordinary asphalt does not self-heal under the sun, neither does this.
@crucifuck8004
@crucifuck8004 12 жыл бұрын
Shit, I knew another one of my ideas would be invented sooner or later. This one will make these inventors very rich. Good for you guys for having the scientific background to make this a reality. Although I do agree with the poster below; it's not exactly self healing.
@Katalyzt
@Katalyzt 12 жыл бұрын
Interesting... But one needs to ask... How well does the "self-healing" asphalt work in snowy/winter/cold environments? Katalyzt
@MixMeAdrink
@MixMeAdrink 12 жыл бұрын
wow what a revolutionary concept!
@InfamousWolf1
@InfamousWolf1 12 жыл бұрын
i know they use induction to heal the roads, rich was talking about using lasers to turn dirt into glass not induction. and i was asking if it was even possible to do considering the energy needs and the laser that would be used to do it.
@dadudeguy2vlog
@dadudeguy2vlog 12 жыл бұрын
I can only hope that this gets used in the states
@Nbuck55
@Nbuck55 12 жыл бұрын
Being a resident of Texas I have seen traditional asphalt roads melt in the middle of summer, can this new mix stand up to 115+ degree road temperatures?
@Cyllid
@Cyllid 12 жыл бұрын
The only problem I have with this idea is the need for the induction machine. How fast would it work? Is probably the major concern. If it was very quick/easy, I'm sure he would have mentioned that in the talk...
@greatspacegibbon
@greatspacegibbon 12 жыл бұрын
I'm curious how this stuff would hold up in hotter environments. I've seen a lot of issues where I live with asphalt formulas that were designed for cooler climates turning to mush every time the weather warms up. The old-school high temperature stuff was fine, but probably had it's own issues. Nice work though. Brilliant design work there.
@jayfulf
@jayfulf 12 жыл бұрын
A common issue with roads is water freezing, this seems like it would amplify that problem
@Tuffaha
@Tuffaha 12 жыл бұрын
what doe this link to happiness?! In my country water is sacred, it would be a miracle if it rained all the time
@jeezuschryst
@jeezuschryst 12 жыл бұрын
since a child i've been wondering when something like this would be developed!
@soangry
@soangry 12 жыл бұрын
If the sun doesn't already melt the surface of your roads, it won't melt these roads. The only difference between this self healing asphalt and normal asphalt is the addition of metal fibers. When the large microwave drives over them, these fibers act just like tinfoil in your microwave, quickly heating up and radiating their heat into the surrounding asphalt and remelting it.
@Cyllid
@Cyllid 12 жыл бұрын
That's not what I'm asking. I know how often. I'm asking how fast. As in, how long would it take for the induction machine to do 1 mile? An entire freeway?
@InfamousWolf1
@InfamousWolf1 12 жыл бұрын
i like that idea, but the energy cost for the laser, wouldn't it be too high? Not to mention the laser itself, im not sure if one powerful enough exists yet. Is there one?
@Cyllid
@Cyllid 12 жыл бұрын
What does that have to do with his post? Are you implying that ice expansion is the only way this road could be damaged?
@Jerone5740
@Jerone5740 10 жыл бұрын
yaaay Finally a self-healing road!!! wait...... but it needs a machine to "heal" it? you lost me there!
@isaackarjala7916
@isaackarjala7916 9 жыл бұрын
***** this uses induction to heat up the road and cause the healing. There may be a way to heat it up using heat from the sun but that isn't what is in the video.
@paradigm_shift9
@paradigm_shift9 4 жыл бұрын
Machines could be automated
@bbolton298
@bbolton298 12 жыл бұрын
I would imagine that there would be some sort of drainage system underneath the road to keep it from washing away.
@GoodDeedsEveryday
@GoodDeedsEveryday 11 жыл бұрын
When he set the microwave timer, He should have pretended to run away.
@2Critical4You
@2Critical4You 12 жыл бұрын
They would use induction technology. Think of it as holding an induction stove upside down against the road.
@Cyllid
@Cyllid 12 жыл бұрын
That doesn't change my question? That he didn't mention that bit at all, is suspicious. I also agree that it doesn't mean that it's necessarily longer. I just am naturally suspicious because of how duplicitous people usually are. Even smart people at TEDtalks. I'd love this technology, it sounds great. I'm interested in the biggest question mark, because it wasn't addressed. Other than a 2 minute microwave of a very small chunk.
@snodeath
@snodeath 12 жыл бұрын
if the asphalts porous isn't the ground underneath going to erode?
@WitchieNL
@WitchieNL 12 жыл бұрын
I wonder, is this the A58 highway near Vlissingen? Looked very fermiliar, and if it is... Then it must be working, smooth sailing there :P.
@DeathsWill
@DeathsWill 12 жыл бұрын
noise pollution is actually a fairly major problem with health impacts, by making roads quieter potential health benefits will follow, that said i doubt very much that it is a completely silent road, just quieter.
@AlphasysNl
@AlphasysNl 12 жыл бұрын
It's not really "self healing" when an outside influence is needed. Still a nice development.
@allenamenbesetzt
@allenamenbesetzt 12 жыл бұрын
No, also not in China. Parents tried to sell stuff (ironically also from Germany) to a couple of big chinese companies, with the argument that the stuff they sell will not break easily. To the chinese companies, this was a huge turnoff, as that means that their customers will not buy anything from them soon once they have the German product.
@joescott3644
@joescott3644 12 жыл бұрын
They did perform the test in Norway. I'll assume it worked out.
@Cyllid
@Cyllid 12 жыл бұрын
Fresh asphalt roads look nice. At any other time, they do look bad. I will agree that stone and brick looks better than asphalt, period. Even if the asphalt is fresh.
@57matt
@57matt 12 жыл бұрын
What happens when the water that seeps inside the pavement freezes and expands?
@nukshall
@nukshall 12 жыл бұрын
with the current industry depending on repairs we'll be lucky if the technology doesn't get locked up for decades
@tecnoblix
@tecnoblix 12 жыл бұрын
So why not Hempcrete roads?
@eurohim
@eurohim 12 жыл бұрын
I wonder what the cost over the expected lifetime of this stuff is compared to asphalt.
@Bocbo
@Bocbo 12 жыл бұрын
After 2 million miles driven I can say that asphalt is superior to expansion jointed concrete for most roadways. This is a path to the future.
@HavenAWilliams
@HavenAWilliams 12 жыл бұрын
So this is going to be in every country in a couple years, and America in 50, right?
@snarfeater
@snarfeater 12 жыл бұрын
i wonder if it drains that could stop cracking from ice expansion
@tavobenne
@tavobenne 12 жыл бұрын
no the melting point of the steel is far higher than what it would heat up to on a hot day. Also its only the small pieces of steel that melt not the entire road surface
@Martial-Mat
@Martial-Mat 12 жыл бұрын
Yes, I was thinking that.
@MindlessTube
@MindlessTube 12 жыл бұрын
Don't heavy machines like Semi-trailer trucks ruin roads because of weight? could this heal from that?
@bheshbhesh
@bheshbhesh 12 жыл бұрын
Very very useful. Demo.we should put in action.
@WrenAkula
@WrenAkula 12 жыл бұрын
No, the warm weather does not heal it. That's what the large induction device is for.
@2nd3rd1st
@2nd3rd1st 12 жыл бұрын
That's great, but someone should invent a road that has no assholes on it, that would make driving much more comfortable. ;)
@alhumaidib.alabbas2869
@alhumaidib.alabbas2869 12 жыл бұрын
very good
@elminz
@elminz 12 жыл бұрын
I wonder about the oxidation of the steel. Great idea though.
@2canines
@2canines 12 жыл бұрын
gravel foundation and good ditches = no erosion of the foundation.
@1337w0n
@1337w0n 12 жыл бұрын
So THAT'S how the Romans built such long lasting roads.
@gadda01
@gadda01 12 жыл бұрын
All I want to know is how on earth he plans the heat all of the roads once they're covered as that's going to take a lot of machines and a lot of time to do
@eurohim
@eurohim 12 жыл бұрын
This sounds like a business opportunity for you.
@jrusselison
@jrusselison 6 жыл бұрын
Has this one been found to be practical in a real world scenario?
@Brurgh
@Brurgh 12 жыл бұрын
stone and brick are terrible to drive on, for passenger comfort, vehicle life span and road durability. the material isnt chosen because it looks pretty, its because it does its job very well!
@ZardoDhieldor
@ZardoDhieldor 12 жыл бұрын
Self-healing asphalt would be VEEEERY useful! :D No more potholes! :D
@fullfist
@fullfist 12 жыл бұрын
smart minds up there
@19RedRhino89
@19RedRhino89 7 жыл бұрын
Making asphalt silent is a pretty stupid idea when you stop to think about it for even a second. I don't believe the sound of tires on the road is louder than most vehicle engines anyway, but if we get to a point where the majority of vehicles are electrically powered, the sounds of tires on the road will be the best auditory queue to alert the blind, or people on the other side of a corner or bend, etc. If there is a ton and a half of steel hurdling through the space adjacent to me, i want to hear it coming. Eliminating the sound of tires on the road will either do nothing, or do harm.
@ToonHermans18
@ToonHermans18 6 жыл бұрын
It is only used for highways. Using two layer ZOAB in combination with sound barriers reduces the sound production a lot. It has been shown that sound created by highways is bad for your health.
@AntragonDE
@AntragonDE 12 жыл бұрын
Doesn't the asphalt deform during the healing process?
@djmorgan8783
@djmorgan8783 5 жыл бұрын
Get some water in between the cracks and let it freeze and let's see what happens
@MrUniversality
@MrUniversality 11 жыл бұрын
self healing materials are on fire right now, self healing wires, even boards and processors.
@NedTheDread
@NedTheDread 12 жыл бұрын
Definitely should, as it needs outside effort to heal, therefore NOT "self-healing"!
@gosha35200
@gosha35200 6 жыл бұрын
Зачем этот цирк с жидким азотом, если такую балочку из асфальтобетона 50 на 50 мм можно сломать практически голыми руками при комнатной температуре. Технология бесперспективная и экономически невыгодная. Сам занимаюсь научными исследованиями в сфере асфальтобетона и могу объяснить почему. Во первых заживление трещин таким способом убирает последствия растрескивания, но не убирает причину образования трещин. Могу дать 100 % гарантию, что после такого ремонта, трещины возникнут в том же месте в двойном количестве. Трещины в асфальтобетоне возникают по трем основным причинам и обычно эти причины комбинируют друг друга: силовые (недостаточно прочное основание), температурные (потеря свойств температурной релаксации когезионных пленок вяжущего вследствие старения и окисления оного с течением времени), усталостные (потеря внутреннего сцепления материала после многочисленных циклов изгиба). Таким образом мы восстанавливаем целостность материала, но не восстанавливаем его свойства (а то и ухудшаем, более сильно окисляем вяжущее после прогрева) и по вышеуказанным причинам трещины уверен в течении года возникнут вновь. Если бы все было так просто, то брали бы асфальтогранулят (сфрезерованный асфальтобетон)и разогревая укладывали его на прежнее место, однако горячий ресайклинг и на сегодняшний день новая технология в США имеющая очень большое количество недостатков.
@brandon7671
@brandon7671 7 жыл бұрын
Not gonna fly. Might work on very minor cracks but anything more than a few mm and I doubt it would. Even if it did, you'd be moving asphalt from surrounding aggregate - possibly exposing it further - which would weaken the pavement structure over time.
@paragonD6
@paragonD6 12 жыл бұрын
smart idea
@Bluemoondm1
@Bluemoondm1 12 жыл бұрын
Hmm. Wouldn't being able to hear cars coming on the asphalt roads be safer than "silent" roads?
@ЮрийГагарин-м6р
@ЮрийГагарин-м6р 7 жыл бұрын
а ещё если этот асфальт делать на нашем бесшумном резиновом битуме, то он станет ещё более бесшумным.
@Zoza15
@Zoza15 12 жыл бұрын
Eehhmm no, its needs more research, not only are his ideas perfect on paper, but there are other ideas to grid up the roadway into a self paying solution.. But this idea is the ultimate blueprint for the whole world, especially for next generation cars.
@sarahoconnor2296
@sarahoconnor2296 11 жыл бұрын
If only human could do this that quickly
@jamesryan8738
@jamesryan8738 11 жыл бұрын
Conclusion: Not self healing. Requires moderation and attention. Slightly better then normal asphalt. Cost to replace current roads with this innovation is far to dramatic for its yield. More work is needed, in my opinion.
@R081NK1NG
@R081NK1NG 12 жыл бұрын
somewhere around 3 mins did he saying something about butt hole? !_!
@brandonpersad8411
@brandonpersad8411 11 жыл бұрын
Awesome
@Eddy0Raven
@Eddy0Raven 11 жыл бұрын
your English is not that good but I also live in Romania so...you have my like :D
@macpheja
@macpheja 12 жыл бұрын
Finally!
@KrazaK87
@KrazaK87 12 жыл бұрын
Are you by any chance an English major?
@localcrow
@localcrow 6 жыл бұрын
And thus, Golems were born.
@Dr0Clockwork
@Dr0Clockwork 12 жыл бұрын
He said he was dutch.
@KikiTay
@KikiTay 11 жыл бұрын
Hmmm.. You can't call this self-healing if it takes an initiative to heal. If so, isn't my hot glue or plastic resins a self-healing material?
@gweedomurray9923
@gweedomurray9923 10 жыл бұрын
Chalk it up to advertising hype. I clicked on because of "self healing".
@baboom007
@baboom007 7 жыл бұрын
To heat all that amount of miles will cost more than to repair
@6darksouls
@6darksouls 7 жыл бұрын
where's your data
@TvehX
@TvehX 12 жыл бұрын
It's like listening to Arnold Schwarzenegger talk science.
@om6977
@om6977 11 жыл бұрын
He kinda sounds like Arnold Schwarzenegger :D
@stm91
@stm91 12 жыл бұрын
It'd be great, yes, but i could see it being blocked by construction companies' lobbying since they would lose a lot of money. There are a lot of things which could improve the world, the only thing holding them back are some people who fear for their profits.. sadly
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