Пікірлер

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  @l.JAI.SHREE.RAM.lКүн бұрын

  How much time did the printer take to complete this..?

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  @peterlean66312 күн бұрын

  Everything you need to know, clear as mud !

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  @ICU1014 күн бұрын

  Still waiting.

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  @paulbriggs307214 күн бұрын

  Fly ash in the US is all spoken for already and is used as an additive in cements and concretes. Not really available in building supplies.

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  @srf566815 күн бұрын

  Maybe to mix it quickly, you can add glass marbles

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  @louisarmstrong886316 күн бұрын

  Went out and watched the grass grow it was a lot faster .

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  @TomMiller-hp1ie16 күн бұрын

  The theory is a nice idea, but definitely wrong. If megalithic structures were made in this way years of erosion would have exposed the agragates that were close to the original surface. Also you do not crush the agragate when making it because then your concrete has no strength to it. Even in a geopolymerized concrete the strength comes from the agragates being pressed against each other. Like the portland in traditional concrete, the polymers just keep the agragate held in place. Without solid agragates to give structural strength, the weight of pieces on top would cause stresses that make the lower pieces crack and break. There is no evidence to support this theory due to the lack of agragate in the weathered megalithic stones, and without sizable agragates in a concrete it would not last long. There is also the fact that while geopolymerized concrete are cheaper and reach structural strengths faster than traditional concretes, they structure is not as stable over time and do not last as long. Traditional concretes using portland and water begin degrading after about 50 years, and geopolymerized concretes begin to degrade even faster.

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  @noelb762316 күн бұрын

  I thought that coal ash was HIGHLY radioactive. So how, exactly.... Would that be good for the environment to have a lot of concrete that's radioactive? Part of the reason everyone was getting cancer from drywall / sheetrock that was made in China it's because it was made with large quantities of fly ash from coal burning power plants

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  @davislin760320 күн бұрын

  They quarried those stones and put them on top of each other after softening.

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  @rickstokes223921 күн бұрын

  However ever said the pyramids were made of this is lying. The stones are solid rose granite quarried from over 500 miles away.

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  @haitheory26 күн бұрын

  Great Pyramid facing stones were cut from white limestone deposits at Tura. Documented evidence via papyri found at Wadi al-Jarf. Search Pierre Tallet for facing stones and "haitheory" for Giza Pyramids construction.

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  @stanredding76Ай бұрын

  Great. Now I know how to pour clear liquid for 2 minutes.

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  @curiouspeople6441Ай бұрын

  Will probably use this to make me deadlift 45lb weights if it’s cheaper than buying one

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  @bobsaturday4273Ай бұрын

  annoying brainless music instead of saying what the proportions quantities and details of the ingredients are

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  @eddiebernays514Ай бұрын

  should use small rod when using 4x8 cylinders

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  @dubselectorr345Ай бұрын

  hilarious, best part is the ending where you show nothing.

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  @chris-vn6mrАй бұрын

  There are more men working on this crew then you would see in Toronto. But after spending a few days in Tokyo, I noticed that the finished product is better than in Toronto.

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  @petrokemikal2 ай бұрын

  How to make high strength concrete without showing you how to make hight strength concrete.. Very informative.. This gets a thumbs down I like it so much..

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  @onlythetruth883Ай бұрын

  Playing games. He is taking us for fools. He has shown us nothing! Wasting our time.

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  @chevyyyyyyy2 ай бұрын

  This method is valid for what it makes; a small amount of geopolymer; Can it scale upward? Can someone make a fighter jet after doing a questionable proof of concept after making a mere paper airplane?

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  @patriciapatricia75572 ай бұрын

  Fascinating. I have always wanted to see Mongolia

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  @drewrinker20712 ай бұрын

  I could see something like this being useful for making firebricks. Just burn out the foam when your done. Make sure that you use enough of it so that the bases can escape.

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  @patrickedgley43702 ай бұрын

  Slump test fail

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  @paulukjames77993 ай бұрын

  I was watching Paul Cooks videos and for some reason the algos sent me here I wonder if it is because he says geopolymer 20 times in most videos.

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  @anupriyatm84603 ай бұрын

  Hi sir iam post graduate student doing work in 1 part geopolymer, so how to do the mix design of these onepart geopolymer ?there is any code specification?

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  @user-ls6ov1qe6y4 ай бұрын

  いいですね。欲しいです(笑)。値段にちょっと興味あるんですけど、良ければ教えてもいいですか？

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  @takehikomidorikawa77673 ай бұрын

  軽自動車1台ぐらいです。

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  @rgurutn57304 ай бұрын

  Please tell correctly about raw materials and its ratio sir

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  @mrsimo71444 ай бұрын

  Thanks. 🇬🇧

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  @feynstein10044 ай бұрын

  The music is annoying. And what were the results? That's what I watched the video for 😅

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  @takehikomidorikawa77673 ай бұрын

  The average of the three specimens is approximately 150 N/mm2.

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  @feynstein10043 ай бұрын

  @@takehikomidorikawa7767 Arigato 😊

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  @muhammadmubeenislam3 ай бұрын

  That is 21755 PSI

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  @andraszsigmond74914 ай бұрын

  Yoroshiku Takehiko MIDORIKAWA Shi. (google translater) i see first this chanel. 1month ago. i only see uhpc conkrete videos.... first i see your mixer is garbage.😁 i everyday work whyt uhpc concrete. when i see 1066kg cement/ m3 temperature???? Not burn? 22x25kg cement for this mix and others 1,25m x1,25m x 0,5m concrete block. Second day concrete block hav temperatury 60-70C............

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  @HaiHoang-gp3ct5 ай бұрын

  Hi, I'm from Vietnam, I'm researching geopolymer concrete and testing them. Can you give me a look at the formula, the ratio of substances that you studied in the video. Sincerely thank you !

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  @yamaharu9095 ай бұрын

  Hey guys !

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  @causalloop28255 ай бұрын

  How did the Egyptians get a hold of fly ash, blast furnace slag, water glass, and sodium hydroxide?

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  @louisebrookes263023 күн бұрын

  chemistry - Khem egyptian God. Waterglass is from lye from burning wood... you can do the rest lol

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  @causalloop282523 күн бұрын

  @@louisebrookes2630 Well, explain the blast furnace slag and sodium hydroxide. Give the entire explanation or its BS to sound smart. lol

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  @horaciogiaccardi17775 ай бұрын

  why are you measuring a lot of empty bottles all identical?

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  @artasprofession11486 ай бұрын

  any research paper for it

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  @MariKurisato6 ай бұрын

  こんなことはするな。もっともっとやってくれ。

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  @herausragend65147 ай бұрын

  Great video! I was already aware that it had to be geopolymer concrete, but your scientific visualization is greatly appreciated. Thanks for sharing this informative video! Greetings from Germany.

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  @dubselectorr34517 күн бұрын

  The best part was at the end where they showed it and it looked exactly like what is found in ancient sites. ! 🤣🤣 I take it you were also being sarcastic as well.

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  @childrenskingdom20197 ай бұрын

  For how long should the sample be left in water before reading the measurement?

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  @childrenskingdom20197 ай бұрын

  thank you. this is helpful

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  @seetheforest8 ай бұрын

  I know sugar destroys concrete if its in the mix. It won't set.

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  @booz53518 ай бұрын

  すみません、こちらの水率の測定により ローモンタイトの混入なども推測できますか？よろしくお願いします

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  @ManuelTanase8 ай бұрын

  Wasted 12min of my life watching stuff mix together

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  @MrFernando587639 ай бұрын

  sodium silicate is the main ingredient in stop leak will it dilute with plain water after sitting in a heater core for some time with?

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  @kevinroberts78111 ай бұрын

  Are you making concrete that pours itself?

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  @Banzku2311 ай бұрын

  Hi, great videos! I was wondering how do you keep track of incoming raw materials and the tests done to them. Is there a specific LIMS for concrete lab?

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  @luke_a_johnson11 ай бұрын

  Use hashtags like #materialscience #geopolymer #modernconcrete in the video description to make it easier for people to find.

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  @pmarzoccojr11 ай бұрын

  Thank you very much for your video. I have a couple of questions. What role does pH play in the process? What was the pH of the fly ash?

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  @dubselectorr345Ай бұрын

  You won't get an answer because it is a joke. They cut stone. Just like the mud they produced here, it muddies the waters of real research .

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  @TessaractAlemania-hd7tv11 ай бұрын

  Takehiko, thank you for your video, but I think it would be more interesting, if you explain personally what you are doing and why. For example - why this special mixture? And you didn't mention the inventor of geopolymer, Dr. Davidovits.

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  @erazer568511 ай бұрын

  Descriptive subtitles would be nice.

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  @TheRojo38711 ай бұрын

  Geopolymer is good for a loadbearing system; for insulation go with CO2 aircrete.

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  @attilarza248811 ай бұрын

  No it wasn't used to build Pyramids or the walls in Peru... There are quarries that they cut stones out of them with precision. 2 to 70 tons slab of stones. Also some stones have fossils in em! I'd go with the Stone Softening Liquid theory.

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  @tcgreen730410 ай бұрын

  Yeah, I think that "slump flow" would really have impressed those builders