How CEMENT is Made

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  • Опубліковано 18 гру 2024

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  • @abcdef-qk6jf
    @abcdef-qk6jf Рік тому +404

    I used to work at a cement factory. The video is factual correct without getting into too many details. Modern grey cement production uses a tower with a calcinator and a cyclone - the cyclone removes a lot of water very quickly. You need less heat to remove the water. The production is sped up multiple times making it far more energy efficient than the rotary kiln. Cement production uses a lot of waste products like the ash mentioned. Waste has become a ressource - you pay for.... Cement production releases a lot of CO2 - however a lot gets trapped again in the process of curing (when the cement hardens).

    • @ryanbeard1119
      @ryanbeard1119 Рік тому

      Yes. Please tell the lefties that cement when curing natural sequsters C02.

    • @wp2746
      @wp2746 Рік тому +11

      Thank you for sharing, glad to hear co2 gets back into the concrete.

    • @cattnipp
      @cattnipp Рік тому +4

      are you an engineer?

    • @annunacky4463
      @annunacky4463 Рік тому +8

      I did the control systems for a preheater precalciner system. It had a short kiln…the clinker cooler was the hardest to keep smooth control.

    • @northlondonmasons107
      @northlondonmasons107 Рік тому +5

      Cement absorbs Co2 ? Thought that was just lime ? Cement hardens from hydration though right ?

  • @ironwill4035
    @ironwill4035 Рік тому +21

    It's 5am in the morning and I'm learning about cement...pretty dope.

  • @thomassmith2058
    @thomassmith2058 Рік тому +18

    Cyndrilical! Nice.

  • @vicromono4799
    @vicromono4799 Рік тому +39

    Very good brief explanation accept one. The finishing process is performed at the time the concrete is curing and not after. Usually 3 to 4 hours after being poured, skreed, floated and or fresno smoothed, a trowel, broom or stamp finish is applied. The only finish performed after curing is acid etching, grinding and polishing. 70% strength it usually obtained after 7 days. 90% after 28 days. Concrete can cure for up to 90 years. The Hoover Dam project was still creating heat from curing years after completion.

    • @hime273
      @hime273 Рік тому

      I don't even remotely believe that whole Hoover Dam claim.
      It sounds like another asinine claim to wow and dumbfound the masses.🙄
      Are we to believe that they imbeded wireless Tempurature sensors throught the concrete?
      Concrete Dams are poured in blocks, using a quick curing cement, and each block is essentially cured by the time another block is poured on top of each block.
      Are we to believe that the Hoover Dam is the one concrete structure in the world that somehow created an anonymous forever lasting chemical reaction that defies Physics?

    • @peterherrington3300
      @peterherrington3300 11 місяців тому

      If you're going to unnecessarily criticise an excellent informative video , the least you could do is basic schooling beforehand.
      Typical arrogant illiterate American.
      'Except' & 'screed' by the way .
      Apology accepted

    • @bronxcheer1484
      @bronxcheer1484 7 місяців тому +1

      Except not accept

    • @vicromono4799
      @vicromono4799 7 місяців тому +1

      Thanks. Learning to accept criticism.

    • @vicromono4799
      @vicromono4799 7 місяців тому +1

      Oh, Thanks. I didn't no.

  • @Melogode
    @Melogode Рік тому +6

    The part where he started talking about the clinker and the clinker cooler (02:10). It reminded me of that one Rick and Morty episode with the Plumbus. 😅😂😂😂😂

  • @Quizzicality
    @Quizzicality Рік тому +33

    I run a concrete plant. There are a few batches (recipes) we use all the time for things like driveways, sidewalks, foundations etc but for special projects (large commercial jobs etc) there are hundreds to choose from and my company has experts that can whip up a new one whenever needed. There's also a lot more than just retarder. There's water reducer which also increases the strength of the concrete, fiber (steel, plastic and glass varieties), and we can even change the color of the concrete.

    • @Factora_eng
      @Factora_eng  Рік тому +1

      Great tip!

    • @wanderingfido
      @wanderingfido Рік тому +5

      I would definitely qualify as a retarder. Are there job openings?

    • @Quizzicality
      @Quizzicality Рік тому +3

      @@wanderingfido only for the competition ;)

    • @tobybrown1179
      @tobybrown1179 Рік тому

      Throw a can of coke in the back of the mixer to slow it down…

    • @RajinderYadav
      @RajinderYadav Рік тому

      @@tobybrown1179 the white stuff?

  • @davidjaap2130
    @davidjaap2130 Рік тому +69

    Retired R/M driver here. Did a good job explaining about cement. The ancient Egyptians had their own version said to contain lava ash. I know this vid was about cement but maybe you could do a series focusing more on concrete.🙏💓

    • @robinpage2730
      @robinpage2730 Рік тому +12

      It was the Romans, not the Egyptians. Volcanic ash, called pozzolana, or pozzolan, was mixed with slaked lime, and that mix was mixed with sand and gravel to make Roman concrete. It lasts for thousands of years.

    • @goodcitizen3780
      @goodcitizen3780 Рік тому

      ​@@robinpage2730
      ...and cures in seawater too!

    • @annunacky4463
      @annunacky4463 Рік тому +1

      @@robinpage2730 I heard it also had tiny chunks of sea shell embedded in it. Seems the shell was a reservoir of calcium carbonate that seeped into the surrounding cement material over eons and sustained its structure. When we made it, it was all ground very fine for strength and fast set. The Roman stuff lasted, well it still lasts…

    • @darthvader5300
      @darthvader5300 Рік тому

      ​@@robinpage2730 Pozzolana is not just a form of volcanic ash but as a sandy form of volcanic ash made out of micro-particles of micro-porous silica almost like diatomaceous earth to allow 10,000 times more surface area to react with the burnt quicklime or slaked lime to form a NON-POROUS calcium silicate which is also very strong. Since the late 1960s many scientists and engineers has been trying to find ways to improve on this principle of calcium carbonate to silica inter-reactions. In the Eastern Roman Empire they have no pozzolana or pozzolana sandy volcanic porous ash but they instead used a substitute called crushed and powderized bricks which has been crushed and grinded until it is as fine as white flour. How long it will last? One archeologist demonstrated how that product is made by mixing an equal volume of burnt quicklime and powderized brick powder and adding sufficient water to form a mortar and slap on on a rock wall wet with sea water to make it water proof and he said "IT IS GOOD FOR THE NEXT 5,000 YEARS!" Others use either silica sand with a silica content of 95%, or silica brick with a silica content of 97% or, quartz-quartzite-diatomaceous earth with a silica content of more than 97% up to more than 99%. They are all crushed, pulverized, grinded, powderized to become as fine as bleached white wheat flour so that they will dissolve in water (water is a universal solvent) and when mixed with water soluble burnt quicklime or slaked lime they form calcium silicate cement. One scientist-engineer went so far by mixing an equal volume of sodium silicate (waterglass with a 50% silica content and 50% sodium carbonate content) mixed and dissolved in hot water and allowed to cool into a viscous liquid similar to honey and then mixed with an equal volume of burnt quicklime or slaked lime until both has completely dissolved together (plus some additional water so that he can add a calculate volume of sand and-or graded gravel which are both mica free so that the resulting cement mortar and-or concrete is very strong) that he ended up with a weird form of almost glassy or glazed form of calcium silicate mortar and-or concrete which is very strong and virtually non-porous!

    • @stevebuckley7788
      @stevebuckley7788 Рік тому +1

      Modern Portland Cement is simply synthetic volcanic ash. You can use any kind of silicate, it's the temperature, heating and cooling times that determine the quality of the final product.

  • @The_abdelhafid
    @The_abdelhafid 9 місяців тому +3

    Thanks for the information!
    I'm now able to start manufacturing cement

  • @99kevin99
    @99kevin99 Рік тому +12

    A good general knowledge video. Important information all in one place. Well done!

  • @bobbyhill4118
    @bobbyhill4118 Рік тому +5

    I do construction work and I never actually knew what cement was made of. It can be a lot of physical labor though especially when doing larger pours, or working with drier concrete. I’ll bet working in the rock quarry blowing up rocks and operating large machinery would be super fun though

  • @MrProgrammerGuy
    @MrProgrammerGuy Рік тому +65

    This was an VERY well made video. Clear, concise and well explained. Great job!

    • @Factora_eng
      @Factora_eng  Рік тому +3

      Glad you enjoyed it!

    • @bubaks2
      @bubaks2 Рік тому

      What’s happening on the thumbnail?

    • @chosen1one930
      @chosen1one930 11 місяців тому

      ​@@Factora_engstop using words over and over you bore people and sound repetitive like crazy

    • @electriccoconut
      @electriccoconut 10 місяців тому

      And he's very good with the words me thinks.

  • @karihardarson1234
    @karihardarson1234 Рік тому +4

    The video is very well made - but the background music is intrusive.

  • @Optimiser113
    @Optimiser113 11 місяців тому +1

    Excellent video!

  • @xBloodXGusherx
    @xBloodXGusherx Рік тому +3

    This puts into perspective how complex something so common is..

  • @MrBonediver
    @MrBonediver Рік тому +2

    Worked at a cement plant for a few!! Raw meal is cooked to become clinker, then mixed with gypsum to make cement!! Mix cement with rocks (aggregate) becomes concrete....

    • @VeyOrtega
      @VeyOrtega 9 місяців тому

      Hey! I'm making a documentary about cement factory workers. I would love to hear about your time working there.

  • @andreaskashungu6900
    @andreaskashungu6900 Рік тому

    Is this Ohorongo Cement from Namibia am seeing at 2:43 to 2:57? Proudly Namibian..

  • @DiyInspiredCreations
    @DiyInspiredCreations Рік тому +1

    very, very, very Informative video

  • @GFSwinger1693
    @GFSwinger1693 Рік тому +58

    Background music is annoying.

    • @sbenn6917
      @sbenn6917 3 місяці тому +1

      Not sure why people feel the need to put background music in their videos. It's annoying.

    • @CasualAFCarlos
      @CasualAFCarlos Місяць тому +1

      I hadn't noticed it until I saw this comment.
      Thanks 😑

  • @evansogutu4167
    @evansogutu4167 Рік тому

    Ino video Iko sawa kabisaaa

  • @terri6854
    @terri6854 Рік тому +1

    1:40 The narrator says: A long "cyndrilical" furnace...
    instead of cylindrical.

  • @edwinbasuki586
    @edwinbasuki586 Рік тому

    Retired RM, Kiln and CM operator here..very good explanation.

  • @Sajuuk
    @Sajuuk Рік тому +11

    I thought cement was just a mixture of various minerals, I had no idea it had to be manufactured 😂🤦

    • @MoneyManHolmes
      @MoneyManHolmes Рік тому +1

      I always wondered where cement came from since it gets hard when wet. I thought it had to be mined from deep underground or something.

  • @Lunibruniful
    @Lunibruniful Рік тому +1

    Cool your clinker, Buddy

  • @Slaphappy-_-
    @Slaphappy-_- Рік тому +1

    What a marvelous finding!

    • @kopronko
      @kopronko Рік тому

      Amennn, and, i wonder, why it wasn't invented by our black brothers ... ?

  • @peterherrington3300
    @peterherrington3300 11 місяців тому

    Finally there is an American who actually understands what cement is .

  • @mickwolf1077
    @mickwolf1077 Рік тому

    4:54 what came first concrete or a concrete slab?

  • @davidtruchon9206
    @davidtruchon9206 Рік тому +2

    where is the guy that scrape the rock in the picture

  • @paulmwangi1639
    @paulmwangi1639 7 місяців тому +2

    I will own a cement company some day

  • @RoadlampManufacturer
    @RoadlampManufacturer Рік тому +1

    nice

  • @davechapman7735
    @davechapman7735 Рік тому

    excellent !! thanks

  • @Austinemmytube1
    @Austinemmytube1 Рік тому

    Great video

  • @fwengsolutions
    @fwengsolutions Рік тому +7

    A cyndrilical furnace - that's something I'd liketo see! (1:44)

    • @nickroth593
      @nickroth593 8 місяців тому

      Some are huge and are lined with 6-9in brick to keep in the heat. It's pretty cool to see one while running. The heat the put off is crazy.

  • @damantrip2874
    @damantrip2874 10 місяців тому

    If i have limestone and clay could it possible to makes cement at home.? I know that buying much cheaper than making, but i have the problems with transportation.

  • @NobodySpecial512
    @NobodySpecial512 11 місяців тому

    I had a customer who was a cement factory in Nevada. They had a sign up that said "Number of days since last fatality", along with pictures of men who had died working there. That long kiln and what comes out at the end is dangerous.

  • @craigbrown5359
    @craigbrown5359 11 місяців тому

    Amazing...thanx

  • @DavesTreeFarm
    @DavesTreeFarm Рік тому

    fairly thorough, but I would have liked to hear about the Donnely nut spacing and crack system rim riding rip configuration.

  • @lorengordon9626
    @lorengordon9626 Рік тому +2

    Years ago I worked at the only admixture and crete curing compound plant in the U.S.
    Now this plant is gone , and many others have popped up I realize how important my job was.

  • @asifiqbal9607
    @asifiqbal9607 Рік тому

    Best Wishes

  • @Biohackersabove50yearsol-ol2mf

    This is really interesting!

  • @RJ-zv5vw
    @RJ-zv5vw Рік тому +3

    Wow.This is wonderful. Thanks for sharing.

  • @all4espi
    @all4espi 3 місяці тому

    1:42 Cindrilical? I think the word you are looking for is cy·lin·dri·cal.

  • @pabloescobar7139
    @pabloescobar7139 Рік тому

    Excellent video

  • @amirh.926
    @amirh.926 Рік тому

    thx for information

  • @clayallen_art
    @clayallen_art Рік тому +30

    This is one of the better AI documentaries I have seen. You guys did a real good job with your TTS model's cadence and tone. There is a sufficient pause when a breath should be taken and the tonal infections are passable. I also noticed that you took the time to have an LLM model proofread the script. All in all, Id say that this is good production for an AI generated video.

    • @Factora_eng
      @Factora_eng  Рік тому +15

      Not Ai

    • @paulcorcoran534
      @paulcorcoran534 Рік тому +4

      Totally AI.

    • @exidous6831
      @exidous6831 Рік тому +2

      @@Factora_eng Maybe it's not but pronunciation of a number of words was just wrong. Maybe not AI but seems like a computer. A native speaker would just know that doesn't sound right.

    • @goodcitizen3780
      @goodcitizen3780 Рік тому +7

      ​@@Factora_eng
      1:42
      No human would read, "cydrilical" when, "cylindrical", is misspelled.
      That is AI 100% proof.
      In the words of Will Ferrell...
      "I wish you weren't a liar"
      Absolutely disgusting to lie about it

    • @goodcitizen3780
      @goodcitizen3780 Рік тому +1

      ​@@Factora_eng
      Because you're a liar I'm clicking the
      Don't Suggest
      It's just so messed up to lie about it.

  • @stultuses
    @stultuses Рік тому +17

    Fascinating and what's also impressive is at my local store I can get a 20 kg (44 lbs) bag for $8.50
    That is cheap after seeing all the work that goes into making it

    • @ritznoblejas3617
      @ritznoblejas3617 Рік тому

      40kg of cement is only 3.88 dollars

    • @montanaplease
      @montanaplease Рік тому

      Cement isn’t concrete.
      But yeah, in Idaho 80 pounds of premix concrete is $7.62

  • @staceysarian7444
    @staceysarian7444 Рік тому +2

    Wow that is so cool

  • @turpialito
    @turpialito Рік тому +3

    1:42: "Cindrilical"??? Seriously?

  • @montanaplease
    @montanaplease Рік тому +2

    Amazing how the Romans didn’t do any of this and yet their stuff is still standing thousands of years later

  • @MrNoah-Leonidas
    @MrNoah-Leonidas Рік тому +1

  • @SalvableRuin
    @SalvableRuin 9 місяців тому

    @1:42 "Cyndrilical"? It's CYLINDRICAL. The shape is a cylinder, not a cyndriler.

  • @lucmarchand617
    @lucmarchand617 Рік тому

    Thanks expose about cement made.i work before lafarge,inland and miron montreal quebec.cement production change a lots last 50 years.quality is a must a saw own eye when concrete is not made correcty so batch is reject.lafarge just finish huge modernize plant exshaw alberta for future production demand.precast come long way too lots bridge now have lots stuff prefab save lots time and money.thanks video😊

  • @bryanbrewer4272
    @bryanbrewer4272 Рік тому

    This really buttered my bisquit,thanks!

  • @jarmida6371
    @jarmida6371 Рік тому +1

    01:41 "Cindrylical"

  • @bachusatari3969
    @bachusatari3969 Рік тому

    Hapa kwetu Tanzania 🇹🇿 tunachimba sementi nyingi sana ila tunuziwa bei sawa na bure

  • @tclanjtopsom4846
    @tclanjtopsom4846 Рік тому

    How did they make cement before all the heavy machinery, I would prefer to see cement made by hand.

  • @freemanz4051
    @freemanz4051 Рік тому +3

    Gotta get me one of those cyndrilical furnaces!

    • @kopronko
      @kopronko Рік тому +1

      Me2 !!! ! !!! 😀

  • @MrFaaaaaaaaaaaaaaaaa
    @MrFaaaaaaaaaaaaaaaaa Рік тому +1

    we takea da powder and put it on the belt and then some other belts come by and the powder in da mixer and pour out da cement good job bub. i had no audio on while watching but thats how they make cement im pretty sure

  • @JoyKumarShil-e4w
    @JoyKumarShil-e4w 5 місяців тому +1

    Before saw this video i dont know how to make cement but after seeing this i have been understanding it is more tough but we think that it is very easy but reality it is too much tough😢😢😢

  • @rajspec
    @rajspec Рік тому +7

    Cement has a life of 100 years where as ancient Romans Indians and Egyptians used only limestone as binding material for their construction. Their constructions are still standing even after 1000's of years. Are we are missing something here, definitely, like the video said cement industry is worth more that $600 billion and limestone is freely available just need to dig and transport.

    • @robinpage2730
      @robinpage2730 Рік тому

      They added pozzolan (volcanic ash, which makes the lime putty/aggregate mix smoother and easier to work) and eventually realized that it actually reacted chemically with the lime to make a hydraulic cement. The secret is the silicates and aluminates in the ash. Clay also contains these compounds, that's why it's a raw ingredient in Portland cement. The difference is, we burn it much hotter than they did. The clinker we depend on for fast setting times, was garbage to the Romans. The chemistry is not good for durability.

    • @larrybarnes3920
      @larrybarnes3920 Рік тому

      Modern concrete can carry much greater loads.

    • @rajspec
      @rajspec Рік тому

      @@larrybarnes3920 😂

    • @montanaplease
      @montanaplease Рік тому

      Perhaps modern concrete can carry much greater loads than way back then, but not many people need it to do that, so why can’t we just get an option to buy the same stuff the Romans put out ?

    • @FuckSnuuten
      @FuckSnuuten Рік тому

      The main difference between roman concrete and modern is the larger chunks of quicklime they mixed in, this made the concrete "self healing" and therefore can last longer. Today you can buy concrete that has a similar composition as roman concrete but better in every way, the only problem is that it is waaay more expensive... and most chooses to not sell it.
      In fact most buildings today are calculated to last just 50-100 years and therefore expensive concrete is not needed.
      If you want to see the best concrete we can create today look att the concrete in nuclear waste storage bunkers, that concrete often uses iron ore as aggregate and is calculated to last 1000+ years :)

  • @wanderingfido
    @wanderingfido 2 місяці тому

    Is it true that solidified concrete will crumble into powder if deprived of oxygen?

  • @ddcmr9
    @ddcmr9 Рік тому +1

    Worked at the Medusa plant in Pennsylvania, they used a long kiln

  • @AlphatecEngineering
    @AlphatecEngineering Рік тому

    What a great video!

  • @ldssggrdssgds6119
    @ldssggrdssgds6119 Рік тому +2

    Great video. I'm going to send people here when they tell me that concrete is called cement

    • @Factora_eng
      @Factora_eng  Рік тому +2

      Cool, thanks

    • @Maicon-b1b
      @Maicon-b1b Місяць тому

      You're one of those people 🙄

    • @ldssggrdssgds6119
      @ldssggrdssgds6119 Місяць тому

      ​@@Maicon-b1b Yes I'm a person who knows what they are talking about

  • @theoriginalchefboyoboy6025
    @theoriginalchefboyoboy6025 Рік тому +2

    "Aaaah, it's a clinker! I knew it!!!"

    • @ben8606
      @ben8606 Рік тому +1

      The first thing that ran through my head!

  • @DaveC2729
    @DaveC2729 Рік тому +1

    Fly ash is in fact coal ash... produced by coal power plants. What are we going to substitute for it if we shut down all the coal plants? I can tell you, fly ash is almost as strong as concrete all by itself when prepared properly. I used to work construction and had to try to demo it. That sucked. Concrete will be much weaker without it. What are we going to build with?

  • @CutLikeADiamond
    @CutLikeADiamond Рік тому +1

    Can you do sweets like gummy bears? 🎉

  • @nathantilly3539
    @nathantilly3539 Рік тому

    Making that Easyyyy Money!

  • @dougc.1773
    @dougc.1773 Рік тому +2

    You forgot to include "Slump" and "Air Entrainment"!

  • @garywhite2050
    @garywhite2050 9 місяців тому

    A very...SOLID... video! 😂😂😂

  • @vernonvorloc7333
    @vernonvorloc7333 Рік тому +1

    I saw a video that explained it well. The girl said that cement is to concrete as flour is to bread.

    • @montanaplease
      @montanaplease Рік тому +2

      That’s a good comparison. I’m going to be using that from now on.

  • @jonathanklopf7581
    @jonathanklopf7581 Рік тому

    I always wondered about cement, thanks

  • @tonymudau3005
    @tonymudau3005 Рік тому +1

    In South Africa we found a very very efficient way to make concrete without using heat.

    • @kopronko
      @kopronko Рік тому

      How would that be ??

  • @ModeSix-ty3dk
    @ModeSix-ty3dk 4 місяці тому +2

    No cement is better than Lord Nagaarujna cement.

  • @fishcakesticks
    @fishcakesticks 3 місяці тому

    i think concrete isn't in tensile strength but more of it's compressive strength (crushing force) that's why we have different strengths in mpa or psi. tensile strength refers to reinforcement bars (pulling force)

  • @boomersD9CAT
    @boomersD9CAT Рік тому +4

    The batch man (person who batches the concrete) can make or break your day.

  • @worldview730
    @worldview730 11 місяців тому

    7:28, would like to own some of that business

  • @Jimmy_in_Mexico
    @Jimmy_in_Mexico Рік тому

    That's one tuff gal. God bless yall

  • @PanSaltzCaballeratos
    @PanSaltzCaballeratos 6 місяців тому

    2:49 AAAY PAPI!

  • @Hammer_Slammer
    @Hammer_Slammer Рік тому +1

    my hungry ass could never work at a cement factory🍴

  • @_Sada_Swadeshi
    @_Sada_Swadeshi 10 місяців тому +1

    I will use mud clay to build my house

  • @erickithinji2978
    @erickithinji2978 Рік тому

    On fire bro

  • @carocuno06
    @carocuno06 6 місяців тому

    Could we use Sand in cement?

  • @jasonalper7898
    @jasonalper7898 Рік тому +8

    Awesome, I hate when people call Concrete, Cement

  • @Oscar4u69
    @Oscar4u69 Рік тому

    1:42 did the narrator said cyNDRilical instead of cyLINDRical!?

  • @Agent_Smith_Official
    @Agent_Smith_Official 10 місяців тому

    First, you take the dinglepop, and you smooth it out with a bunch of schleem. The schleem is then repurposed for later batches.
    Then you take the dinglebop and push it through the grumbo, where the fleeb is rubbed against it. It's important that the fleeb is rubbed, because the fleeb has all of the fleeb juice.
    Then a Shlami shows up and he rubs it, and spits on it.
    Then you cut the fleeb. There's several hizzards in the way.
    The blaffs rub against the chumbles, and the plubus and grumbo are shaved away.
    That leaves you with a regular old plumbus!

  • @dela1
    @dela1 Рік тому

    ❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤beautiful piece

  • @Jason-o5s
    @Jason-o5s 7 місяців тому

    Cheer~~~a powdery substance made with calcined lime and clay. It is mixed with water to form mortar or mixed with sand, gravel, and water to make concrete.😊

  • @aaron6787
    @aaron6787 Рік тому +1

    thanks your videos are great!

  • @jordanmntungwa3311
    @jordanmntungwa3311 Рік тому

    you telling me Lime trees and Sky scrapers have something in common?

  • @BarnardClangdeggin
    @BarnardClangdeggin Рік тому +1

    1:11 - “sub-SEE-kwent” - hahahahaha

  • @peterliljebladh
    @peterliljebladh Рік тому +3

    The only question I have now is how do the Chinese manage to make concrete of such low quality that you can poke your finger through crumbling it with ease?

    • @rjmun580
      @rjmun580 Рік тому +2

      You actually believe this?

  • @juanc.9735
    @juanc.9735 Рік тому +1

    Cement, concrete and how about Portland?

  • @alexabadi7458
    @alexabadi7458 6 місяців тому

    That's a lot of work but you get something concrete.

  • @faisalkhattak287
    @faisalkhattak287 Рік тому +2

    Good job bro...u r doing it very well and the way you explained it is superb...big love from Pakistan...❤ keep doing it one day you will reach 1 million subscribers .

  • @kinggkongg9694
    @kinggkongg9694 Рік тому +5

    I haul dry cement from time to time and it’s nasty stuff it’s so fine it gets everywhere and at the end of the day you gotta blow it all out of your nose

    • @ricardofierro7041
      @ricardofierro7041 Рік тому +3

      Wear a good quality face mask. The dust will kill you faster than smoking. I am 70 years old, and retired. I occasionally worked around carbon black refineries. I wore a full quality face mask and used petroleum jelly around my ears. I still had to blow my nose to get rid of some carbon black. I never never got in my vehicle before a good shower. Carbon black is just like coal, causing black lung cancer.

  • @PrincessStephinie-ob4el
    @PrincessStephinie-ob4el 4 місяці тому

    ITS 5am in the morning and i am watching how to make cement

  • @supersasquatch
    @supersasquatch Рік тому +1

    This has strong Rick and Morty vibes lol

  • @owluitar
    @owluitar Рік тому

    Concrete lighter than air spotted at 5:42! Industry is lying to us that concrete is heavy >:(

  • @Dani-it5sy
    @Dani-it5sy Рік тому +2

    But how did they every figure out that this is even possible? Who discovered that if you take that particular type of rock, crush it, heat it, crush it etc it becomes cement. People in the past were so smart. What we do today is developing. In the past they really invented stuff.

    • @SiAnon
      @SiAnon Рік тому +1

      Probably the same fella who worked out you could get milk from a cow.

    • @robinpage2730
      @robinpage2730 Рік тому +1

      Lime mortar had been used for thousands of years, but takes weeks to cure. The Romans sometimes experimented with additives to modify the workability of the liquid mix. They added pozzolan (volcanic ash, which makes the mix very smoothly workable) and discovered that it actually reacted with the lime to make a hydraulic cement.

    • @steveburian6880
      @steveburian6880 Рік тому

      Once humans had fire, I think all it took was for someone to put a limestone rock or maybe some sea shells in the fire (calcium). When it gets hot enough, the rock breaks down to a powder. When that powder gets wet again it will solidify. This is basic lime. Cement is a relatively new variation that adds sand (silica) to change the hardness of the finished product.

    • @Dani-it5sy
      @Dani-it5sy Рік тому

      @@steveburian6880 Yeah so cement is actually also a development instead of an invention 🤔 But it's true, I think a lot of stuff has just been stumbled upon.

  • @larrybrooks9671
    @larrybrooks9671 Рік тому

    Amazing technology, still wondering how the entire world was covered in amazing structures as early as the 13th century, how was that possible?

    • @mandalamarcho7997
      @mandalamarcho7997 Рік тому +3

      stable food supply, the rest follow after, mostly from boredom or one up your rival

    • @kopronko
      @kopronko Рік тому

      @@mandalamarcho7997 Amen, Because, before that, people had to spend most of their ime just working 4 the food 4 surviving. That is why the Progress couldn't be achieved.