Recycling concrete
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- Опубликовано: 3 июн 2024
- The construction industry needs large quantities of gravel and crushed rock for concrete manufacturing. So far, recycled concrete has mostly been utilized as filling material or in substructures, but only hesitantly for structural engineering. The film shows how recycled concrete can be processed applying new methods to enable its use as an alternative building material even in structural engineering. The proportion of the building material able to be processed into high-quality products after a demolition can be considerably increased, which in turn reduces the environmental impact significantly.
All information about ressource efficiency (only in German):
www.ressource-deutschland.de
On behalf of Federal Ministry for the Environment, Nature Conservation and Nuclear Safety of the Federal Republic of Germany 
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Everything we manufacture needs to have a recycling path, and we need to work towards. Recycling concrete makes good sense!
We don't have stone in Florida and so this is a major source of gravel. It's great to see big slabs of concrete that otherwise might be dumped somewhere turned into beautiful new gravel.
Looks like this material can be used all over the world for a multitude of things, saves money, labor, natural resources and the list does on and on. It's a win, win, win !!
these recycling videos make me wanna start a company to recycle.
Hi Adam, it is a good idea! And we might make your new business more competitive!
i been thinking about it but its a lot of work for concrete, especially if you dont have heavy equipment
@@johndowe7003 it isn't that much work, you just load the machine. Front loader and crusher is all you really need. A truck the clients on both ends can pay. But you need standards tests, and governments make it difficult, partially because they want to control illegal dumping, and partially because they make money off of legal dumping and quarrying.
Do it !!
2nd hand loader and dump trucks on site. lease a crusher and weighbridge, even land can lease. Recycling sometimes subsidised by government so check that out.
I worked on a construction site that had a mini crusher, this was used to process waste bricks, spilt concrete and cut out arisings. This was used as bedding material for pedestrian walkways etc. Saving on crush stone/rock purchase and waste material going to landfill sites.
Let me tell you: The lime is used to make the cement. The gravel pits are there to get the gravel. That is two different things.
The limestone gets burned to get the active ingredient in concrete.
You still need lime to get concrete. Recycling rocks and concrete can replace gravel for the most part.
Greetings,
Jeff
Agreed
Lime is also used in significant quantities by agriculture, grain farmers. We get 25 ton about every 2 months alone
yeah manz
im amazed that im the first person liking this in 5 years , this amazing idea makes me wanna start a recycling business in my country
You're not the first to like this I saw it a few times & I liked it , probably the counter resets itself with all the comments, its great video anyway
roche wijnaar I notice some videos don’t show likes or dislikes. Guessing it’s a setting on uploads.
Like an unlike are hidden
9:39 And for lunch, concrete. I also like that guys collection of crushed concrete cube samples.
he likes his job clearly :p
I love recycled concrete. It doesn't decompose like limestone and doesn't track "white" onto everything else.
We have a very good recycle center that provides a source of disposal and production of "new aggregate"!!!!! Good video.
I work for a concrete company in Alberta which does all aspects of commercial and municipal concrete work. We have been using recycled concrete for many years as the grade base for new concrete. I use thousands of tons of the stuff every year.
This is great we need to be smarter when it comes to our resources
@BrightLight lol
This is effort expended in the right direction, reduce the demand for development on the environment whilst focusing on reuse and industry standardization in a bid to reduce or eliminate waste disposal...
when we recycle, we also reuse the energy used to obtain the materials. Not exactly, but you get the idea. We pulled something from the ground, spending say 3 energy, recycling it costs 2, net energy gains 1. plus that material itself is not easily replaced, it can be found in other places, but that is not the same as actually replacing it, that is just using up more of whats available to be used.
Here in the USA the need for this service has in many places become tied into growing environmental impacts from demolition material being cast off to illegal dumps; either to avoid the cost of hauling to commercial recyclers, or the absence of localized materials recycling operations.
A really well appreciated and most likely profitable favor to the demolition industry would be to invent a rock and concrete crushing system that was more appropriately scaled and costed to job-site operations; the size where the throughput needed from the crushing system is not measured in multiple tons per hour; more like 1/2 to 1 ton per hour.
Instead of having to pay for hauling castoff rock & concrete to commercial operations, contractors could process the material into forms useful on the jobsite, or possible to be sold to other parties. This would also cut down on them simply calling up people to dump the material "anywhere we can't see it", which in many locales has been and still is a growing problem.
Not only would this open up new sales/leasing/rental business for the machinery, but would have immediate impact with environmental concerns over the swiftly growing number and volumes of illegal construction materials dumpsites.
Here in Texas, we do haul most of the material to quarries where it is recycled. Much of it goes to the cement plants to be reprocessed. Type 1L (Ecoment Capitol Cement), or Type 1/2 LA (Alamo Cement/Buzzi-Unicem) is made with recycled material mixed with fresh limestone. It is used in home, commercial, and road construction. We use it for soil stabilization in spread operations and budget conscious readymix companies. I am a cement tank hauler. I haul it all the time. Very good for it's application, and economical. There are companies in Houston that have been recycling used concrete for decades. Near Austin-Bergstrom airport, there are several quarries that do it, also. Very little goes into landfills around here nowadays. I agree, more demolition operations need to step up and recycle their waste. It just isn't necessary or cost effective.
It's always nice to outfits recycling materials to enable building other things.
This video shows how the use of recycled aggregate in concrete keep the compressive strength of recycled concrete and other properties like viscosity (work ability) seem as for normal concrete as well as the other advantages are to reduce the environmental impact clearly.
I LOVE recycled concrete! My home is located on a private, three mile long gravel road which homeowners are required to maintain. Several years ago we had trucks lay down a 6-8" thick layer of recycled concrete on several hilly grades - our problem spots - prone to erosion, and once the material packed down, it's proven to be nearly as durable as poured concrete.
Thanks for sharing this practical usage.
You can add cement powder to the gravel in the problem areas to help it remain in place. It is called cement stabilization
This makes way more sense then tossing this and using virgin rock. The more we recycle the more we will learn how to recycle more.
@ComocosonoEWL not as strong? what about the compression test? fake concrete?
Yeah there's no way this won't become massively profitable.
@@beback_ video has been launched 6 years ago... atleadt where I live there has been 0% improvement in the subject... we even still use polyestyrene (EPS) for take away food and groceries lol
Yes but its way more work than just jusing virgin rock, nobody would pay the effort and its not competetive at all, as long as there is no law that brings it in scale
America has had this for at least 20 years. This is nothing new here.
Interesting video! :) Some brilliant German thinking behind all the infrastructure need to support concrete recycling.
Awesome info. Thank you
This is very exciting! What's old is new again. Very exciting.
I want to see several different tests on concrete blocks of varying amounts of additives and recycled aggregate.
very good innovation for save the nature, thank you & long live German.
An excellent initiative that all countries should implement 😃👍👌👌👏👏👏
Nice to hear that good news
Can't help but hear Hans Landa narrating this video
This video conflates the need for aggregate (gravel and sand) with the need for cement. The gravel aggregate can indeed use recycled (crushed) concrete, but sand is more of a challenge, since its properties change during processing. The cement must still come from limestone, which is what is shown in the quarry. The "cracking" of limestone -- the separating of CO2 and CaO from the CaCO3 -- is very energy intensive and produces a lot of CO2. This problem, central to all use of cement including in concrete, is not addressed at all in this video. So, while reusing the aggregate is good, this does not tell the whole story.
Ur totally correct,
But i think even a single step towards destination is a big step.
Small drops makes the OCEAN.
You seem to have a pretty specific knowledge of concrete and I agree with everything you've saying. Crushed concrete recycling is nothing new. The cement is the problem
@mike force co2 is one of the green house gas, and u one knows the terrific effect of GLOBAL WARMING heat waves and drought in summer, extremly cold in winter and floods in rainy season.
Ice is melting land is submerging........... and on and on...
So i think it should be taken care of.
@mike force im talking about excessive amount of co2 you innocent guy, i thought that u can understand but its beyond ur capacity. I had not mention that co2 is pollutant u over educated and extra talented person.
& im not a girl u idiot fellow
@@ganimkhan8858 left him alone, he just love his delusional conspiracy and can't listen to another person point of view. He don't understand the different impact between low concentrate CO2 and enormous concentrate CO2 at our atmosphere.
Very educational and thanks for sharing and the very best of luck!
I've finally come across this in English. I was never specifically trying to find such but hearing this in a narration which I understand affords me clarity regarding the content. Demolition waste, if re-processed to required standards, can go round again in construction. It does not have to be creative disposal, such as golf course fill, or landfill liner, or sea breakwall crap, or road base. Government needs to underwrite correct re-processing facilities for it to meet construction requirements, then that be made manditory and compulsory per minimum percentages across the entire construction sector.
Crushed concreate works great as road fil. Its cheaper than crushed rock and compacts better in place.
Agreed! I've been using it for last 15 years for concrete base.
@@MrMajikman1 governments don't give a shit about the environment. Cheaper means less money for the government and how they love money.
אורי פלסי 🤣
石屎廢料原來可以回收循環再用，非常環保值得推廣。The concrete waste can be recycled and reused. It is very environmentally friendly and worth promoting.
Thanks in a million. Great content. Awesome. Grade: A++💥
Super innovation👌👍✌️, from India
I love this very informative
Thumbs for your video!!!
I admire the German mind :) greetings from Turqie.
Teşekkürler, Mete Han! Thank you for your positive attitude towards my country. My siblings and I had many Turkish friends, my dad encouraged us to invite them to our birthday parties, I used to do my homework in Dogan’s house, a dear class mate of mine in elementary school.
What a great & educative documentary. I really enjoyed this video. :)
Aeaysome recycling process , if need our world like these type of process to each and every field then save our natural resources ,that it's perfect idea .Thank you! so much .👍
Excellent recycled product good luck with increasing recycled content into concrete mixture
55 seconds in and it’s sounding like a hit piece......... this is a good thing.
At 2:22 Wow and the hits just keep coming.
Amazing work
Awesome concept we can save nature some extent
We think of it to establish concrete Reusage material but it’s worth and investment is more
Nice video .
The idea is ok, but what hapens if the old concrete has an illness.? How does that affects to the toughness on the new material?
The concrete and asphalt of the major cities has a definite impact on the air temperature.
Amazing
Does Philippines have concrete recycling areas? Because I really think we need it with the constant renovation of roads.
Interestingly for the new era
brilliant
Miraculous idea.
What is difference in age and strength and price, between a fresh material building and recycling concrete building ?
So is it all upside and no downside or was that part left out?
Informative video
Keep on..
Recycle that concrete. Hell yes 👍
I hope concrete in the UK is also recycled. Is there any videos?
Wow, I’ve just got a solution, thank you
Thank you ❤️ best one
They are rock quarries. It's called crushed rock. Gravel is found in gardens.
Actually it is called recycled concrete aggregate (RCA). Rock is a primary raw material.
After 44 years as an Owner/Operator hauling rock, asphalt, dirt and broken up concrete to the recycling plants in Metro Atlanta.. like other operators, we all use the same terminaligy. Only Yankees, Home Owners and Gypsy Travelers call Crushed Base Rock, Crusher Run or it's mostly called GAB in the Quarries etc. Gravel and call Asphalt.. Black Top. Example: Bring a load of Rock and specify the type and bring me a load of asphalt (mixed hot at 320° or so from a pug mill or drum mix Asphalt Plant. TD Atlanta
I'm jimmy Hoffa ,and i approve this commercial.!!!
Weird. In USA they built buildings mainly out of wood. While in Germany it's concrete. I think wood is better simple because it grows back.
Yes, it is far less environmentally damaging. Wood buildings have the same effective lifespan as concrete--only a very small proportion of either is removed because of "wearing out.". Instead, they are mostly either pulled down to be replaced with something else or are pulled down after being abandoned for a long time. European building practices are extremely wasteful.
How can you say that
Miners don't care about the earth when you show a gigantic hole in the planet surrounded by lush grass. If they didn't care, the surrounding fauna would've died out. Even when you're an absolutely irredeemable shell of a person, you still have the presence of mind to think about the future.
I used to test concrete cylinders like that but we would shut the machine off, a split second before it shattered. It is not good for the machine to let it break like that. It is a mess to clean up the sharp concrete shards that fly everywhere and the concrete dust causes COPD. I would see the pressure decrease slightly a split second before it shattered and we would know that we were real close to the pressure that it was going to break at.
I’m sure they only let it shatter for the camera.
This is good 👌🇺🇸. I would really like to see what we can do with recycled vehicle tires.
Lots of things actually
Used tires are used in building new roads and repairing old roads, it's called mechanical concrete look it up.
Please fix the audio. It sticks that once can't hear the whole thing
Great
doing grt job
Hopefully we will soon replace concrete with a more sustainable building material, but this is very good news.
That is interesting and I hope spreads to the West as well.
Wow,, that's grt,,
9:27 dude look at that crushed block like he was gonna have his way with it
yes but if non recycled concrete is stronger and will last longer then using that is a far better option because you do not have to rebuild/renovate houses as often which in turn is better for the environment and its people.
Durability
You may be wondering if a recycled material is as good as a new product. The answer is: Yes! According to the Federal Highway Administration, RCA is as structurally reliable and safe as natural aggregate materials. Furthermore, by using recycled concrete scrap, you can decrease your expenses, while also doing your part for the environment. The best part is that you’ll get to enjoy all of the benefits without having to sacrifice on quality.
The quarry face shows how all the rock was fractured even before the explosion.#
The fracturing occurred in the layers of drying sediments of The Flood 4,350 years ago.
Bores and explosions are sheaper than excavators. And the cracking is not small enough to fit them into crusher and one can have lesser abrasion of crusher hammer surface platting.
@@wernerhiemer406 That's nothing to do with The Flood.
@@rosewhite--- Pff I only reasoned why it is still fractured even more or just torn down that way. I never assumed that this lime gets used as plates.
@@wernerhiemer406 The rock basically hasn't solidified since being fractured in The Flood.
But I can go to beach and find rocks that clearly moved after being fractured, then the fracture was filled with liquid quartz that then solidified to lock the rock with cracks misaligned.
These rocks look like spider stones.
What is the difference in cost per 10 cubic meters?? Does it weigh the same??
In my town, in the 1990s, tons of metal that had been used in a local hospital's x-ray room, eventually went to a local scrapyard/landfill. The metal came from tables, carts, structural applications, furniture, equipment, machines,..all with high metal content. No one labeled it as contaminated or tested it. There were no safety protocols for this type of recycling, and to this day, I don't know if there is any laws or strict guidelines protecting us from this reckless practice. So eventually some of the furniture and including stainless steel tables, were plucked out and found there way into junk stores, in addition some of it was stolen from the landfill pile, by pickers. A year later, some family is dying from extreme radiation poisoning, and nobody knows why. The authorities think the problem is Radon gas, and chase some other false leads. All the while, it is the stainless steel counters in their kitchen, and other furniture, that they bought at a junk store. It was eventually discovered, what was going on. Though it wasn't reported on in a serious manner. And it was never talked about again,.....and no new safety practices were enacted or announced. (As far as I know) It was never discussed again in the local news papers. I only remembered it, because I buy used furniture from junk stores, too. Recycled concrete could contain high levels of radioactivity as well, and who would know.
what happens if the concrete in for recycling was a poor grade of concrete, made with beach sand that had salt.. or decomposed granite was used as an aggregate .. would that effect the long term life of some of the batches of new concrete in the decades to come..
Well if one waits for millions of years you get lead by radioactive decay.
I need an assist, in how to start concrete recycling or home waste recycling
Best to reuse as reclaimed old concrete so 45% is the current standard to use but maybe 20% more to 54% recycled concrete. Vs new. And still passes industry standards. Very nice to know.
Can anyone tell me what size crusher I would need to crush concrete
East Germany and the former USSR are both full of abandoned buildings. They can just tear them down an recycle the bricks, cement, and gravel.
When this ll be started in india
Recycling concrete is good but could never keep up with demand. It makes a great road base tho
What are you talking about????
Rocks . Recycling at its best ? It's been done at least since I saw it done in the early sixties on my father's construction site . Broken concrete has been used in New concrete since Roman times I'll bet .
Romans did invent the stuff so I'm sure they had ways of recycling it no different then now just we have more tech
I used to test concrete cylinders in the USA. We would turn off the machine a split second before they break. They are very loud, dusty, messy, the shards are sharp and it wears out the expensive machine faster if we let it go to full break. Sometimes my fast reflexes were not fast enough. They sound almost like a small shotgun.
Another subject is the lack of dust masks. These people are going to suffer with COPD if they do not protect themselves with N 95 or better dust masks.
11:53 would make a nice screen saver
Thanks to bring it in our knowledge, we can't even emagine it..
Well Good. It this news?
Did you say RHINE?
These resources don't "disappear".... they just get moved around.
I will have to remember this video when I can't fall asleep
This plan should be amended in all countries environmental policy, under the supervision of world environmental delegates.
Also make videos showing the demerits or I'll effects on environment as any gas emissions from this old concrete or any radiation also, the temperature withstand test
You left out perhaps the most important factors: turning natural limestone into cement requires a lot of energy, some plants burn rubber, or other hydrocarbon fuels which creates a lot of carbon dioxide,. And even worse; removing the carbonate from limestone [calcium carbonate] produces vast amounts of carbon dioxide, so using recycled is one of the best things we can do for planet Earth, and ourselves. Very nice video, though.
Turn those queries into lakes after use.
I was thinking something similar.
Not nice to talk about quers like that, they're people also.
It's good job even i like stars this project
please help me
It's strange to have a concrete focused report and not mention anything about asbestos.
Germany, a great country.
9:06 here vee go!!
Great idea...Hope it spreads to India
Il faudra arriver à réaliser l'organisation du recyclage des matériaux de construction à des échelles de tailles différentes selon les besoins.
always wondered why concrete could not be recycled. Were I live there are huge deposits of gravel left behind behind by the last ice age. But in my life time, I can see them dwindling.
Concrete, glass, steel, lumber, gypsum, copper, brass, lead, to name a few can be recycled out of most buildings being demolished. Stop hauling theses precious materials to the landfills where there mixed with garbage.
Some demo crews scavange for beer money after hours
If boss say its ok
I used to get work windows doors flashing Pb Cu Al
Yes all those bricks worth time for me, side work...install historical landscape patio
Can recycled concrete be recycled? if yes, Is there a limit to how often concrete can be recycled?
Stands to reason that as long as you can extract the "impurities" from the rubble, I can't see why not...
You will always need new cement. Only the aggregate portion can be recycled.
wow