Primitive Technology
Primitive Technology
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Primitive Technology: Geopolymer Cement (Ash and Clay)
Primitive Technology: Geopolymer Cement (Ash and Clay)
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About This Video:
I have made wood ash cement before under the assumption that it was the calcium in the ash that gave it its cementitious properties. It may however be a type of geopolymer cement, where the cement is activated by and acid or a base (in this case a base). The acronym NASH is used to remember the material needed: sodium, alumina, silica and H2O. All of these are present in the materials used here.
I did some experiments to see how to produce the cement using ash and fired clay from broken bricks. The first method was to take ash from a cold fire and form it into pellets. One pellet was left aside to dry while the others were calcined by firing them in a forge with wood. The calcined pellets were then mixed with terracotta in different proportions (ash: clay 1:0, 1:1, 1:2, 1:3). All samples survived a water test after setting for a week except for the sample made from cold ash that had not been calcined. This demonstrates the need to calcine the ash at a high temperature before use.
Next I built a furnace with a grate for calcining ash to prove it could be done with natural draft rather than the more laborious blower method. An ash brick or clinker was made from a cold fire and was placed on the grate and fired. The clinker was then taken out, mixed with terracotta and formed into various shapes. One sample was mixed with sand as an alternative to terracotta. The samples all survived the water test after 2 days of setting though the sand sample isn't as strong as the terracotta ones.
Finally, I took the ash from the furnace and used it as is without forming it into a clinker and calcining it. My theory was that ash from the furnace gets hot enough just from burning on the grate that it does not need further calcining. The ash was mixed as is with terracotta and left to set for only 6 hours. It passed the water test without dissolving suggesting a quick setting time.
These experiments have shown how it might be possible to scale up and simplify the production of ash cement. I'm considering it as an alternative to brick making as it's potentially a simpler method (no brick forming, hours stoking the kiln etc.). The structures would have to be adapted to the new material and might be insitu formed walls. More experiments need to be done.
About Primitive Technology:
Primitive technology is a hobby where you build things in the wild completely from scratch using no modern tools or materials. These are the strict rules: If you want a fire, use a fire stick - An axe, pick up a stone and shape it - A hut, build one from trees, mud, rocks etc. The challenge is seeing how far you can go without utilizing modern technology. I do not live in the wild, but enjoy building shelter, tools, and more, only utilizing natural materials. To find specific videos, visit my playlist tab for building videos focused on pyrotechnology, shelter, weapons, food & agriculture, tools & machines, and weaving & fiber.
#PrimitiveTechnology #GeopolymerCement #cement
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Відео

Primitive Technology: Wet Season Destroys Thatched Workshop
Переглядів 1,1 млн28 днів тому
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Primitive Technology: One-Way Blower Iron Smelt & Forging Experiment
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Primitive Technology: One Way Spinning, Rope Stick Blower
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Primitive Technology: Crab and Fish Trap
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Primitive Technology: Crab and Fish Trap Subscribe: bit.ly/subPT | Never miss a video! Enable ‘ALL’ Notifications! Watch my newest content: ua-cam.com/play/PLGnWLXjIDnpBR4xqf3FO-xFFwE-ucq4Fj.html&playnext=1&index=2 Follow Primitive Technology: Wordpress: primitivetechnology.wordpress.com/ Patreon: patreon.com/user?u=2945881 Watch More Primitive Technology: Newest Uploads: ua-cam.com/play/PLGnWL...
Primitive Technology: Natural Draft Iron Smelt
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Primitive Technology: Volute Shaped Blower
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Primitive Technology: Brick and Charcoal Production
Переглядів 1,4 млн6 місяців тому
Primitive Technology: Brick and Charcoal Production Subscribe: bit.ly/subPT | Never miss a video! Enable ‘ALL’ Notifications! Watch my newest content: ua-cam.com/play/PLGnWLXjIDnpBR4xqf3FO-xFFwE-ucq4Fj.html&playnext=1&index=2 Follow Primitive Technology: Wordpress: primitivetechnology.wordpress.com/ Patreon: patreon.com/user?u=2945881 Watch More Primitive Technology: Newest Uploads: ua-cam.com/...
Primitive Technology: Downdraft Kiln
Переглядів 1,9 млн8 місяців тому
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Primitive Technology: Wood Ash Insulated Furnace
Переглядів 1,9 млн8 місяців тому
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Primitive Technology: Undercover Brick Workshop
Переглядів 2,1 млн9 місяців тому
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Primitive Technology: New Brick Kiln Design
Переглядів 2,1 млн11 місяців тому
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Primitive Technology: Roasted Ore and Shell Flux Smelt
Переглядів 2,3 млн11 місяців тому
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Primitive Technology: Making Charcoal (3 Different Methods)
Переглядів 2,1 млнРік тому
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Primitive Technology: Iron Bacteria Cement (no fire/water insoluble)
Переглядів 2 млнРік тому
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Primitive Technology: Decarburization of iron and forging experiments
Переглядів 2,4 млнРік тому
Primitive Technology: Decarburization of iron and forging experiments
Primitive Technology: Cane Water Filter/Siphon
Переглядів 2,1 млнРік тому
Primitive Technology: Cane Water Filter/Siphon
Primitive Technology: Pottery Wheel
Переглядів 2,5 млнРік тому
Primitive Technology: Pottery Wheel
Primitive Technology: Purifying Clay By Sedimentation and Making Pots
Переглядів 3,9 млнРік тому
Primitive Technology: Purifying Clay By Sedimentation and Making Pots
Primitive Technology: Smelting Iron In Brick Furnaces
Переглядів 3,5 млнРік тому
Primitive Technology: Smelting Iron In Brick Furnaces
Primitive Technology: Making Iron From Creek Sand
Переглядів 5 млнРік тому
Primitive Technology: Making Iron From Creek Sand
Primitive Technology: Rock-Throwing Catapult (Trebuchet)
Переглядів 2,9 млнРік тому
Primitive Technology: Rock-Throwing Catapult (Trebuchet)
Primitive Technology: Iron knife made from bacteria
Переглядів 7 млнРік тому
Primitive Technology: Iron knife made from bacteria
Primitive Technology: Improved Multi-Blade Blower
Переглядів 2,9 млнРік тому
Primitive Technology: Improved Multi-Blade Blower
Primitive Technology: Wood Ash Cement & Fired Brick Hut
Переглядів 14 млнРік тому
Primitive Technology: Wood Ash Cement & Fired Brick Hut
Primitive Technology: Brick kiln, brick mold and bricks
Переглядів 2,8 млн2 роки тому
Primitive Technology: Brick kiln, brick mold and bricks
Primitive Technology: Thatched Workshop
Переглядів 3,3 млн2 роки тому
Primitive Technology: Thatched Workshop
Primitive Technology: Pot Made of Wood Ash - New Clay Alternative
Переглядів 12 млн4 роки тому
Primitive Technology: Pot Made of Wood Ash - New Clay Alternative
Primitive Technology: Brick Firing Kiln
Переглядів 7 млн4 роки тому
Primitive Technology: Brick Firing Kiln
Primitive Technology: 4 years of primitive technology
Переглядів 5 млн4 роки тому
Primitive Technology: 4 years of primitive technology

КОМЕНТАРІ

  • @sokolovremwwii2205
    @sokolovremwwii2205 21 годину тому

    Did he get a new pair of shorts?

  • @EvgeniyTG
    @EvgeniyTG 21 годину тому

    Хотелось бы сказать словами классика: "Нихуя не понял, но очень интересно!"

  • @george-stefanleoca1319
    @george-stefanleoca1319 21 годину тому

    could try to make beams out of corcrete and some type of reinforcement like tensioned fiber strings or rope, or even wood if you somehow manage to get it under tension, try to apply the principle of reinforced concrete see if you can get anything. i've heard about rubber and textile being used together, idk bout concrete tho, feel like the textiles might rot and leave holes in the concrete, worth trying tho.

  • @TonTon-mi5uk
    @TonTon-mi5uk 21 годину тому

    Ничего не понятно. Когда уже будут технологии НЛО?

  • @ejnorton225
    @ejnorton225 21 годину тому

    Whoever makes that camera needs to give him as ass load of money

  • @Yantidemifa54
    @Yantidemifa54 21 годину тому

    😮😮Diese serie wird nie alt.Die muhe,die sie in diese gesteckt,ist unglaublich🙌Dangke❤️❤️😄👊💔💔

  • @Yantidemifa54
    @Yantidemifa54 21 годину тому

    😢😢She's MIGHT just be the most humble and heartwarming person to exist❤❤❤️🥱

  • @falconpunch1610
    @falconpunch1610 21 годину тому

    Plus, now with that grate, you can make a killer pizza

  • @913WildCat
    @913WildCat 22 години тому

    bro will have made transistors at age 50

  • @Jason-pl6vr
    @Jason-pl6vr 22 години тому

    Yes sir! Structure time

  • @r3dp9
    @r3dp9 22 години тому

    It must be pretty rough, for anyone who has to rebuild their home and equipment over and over just because of rain. Sturdy buildings are hard to make, but well worth it.

  • @Dejabeige
    @Dejabeige 22 години тому

    You might wanna watch me 🫦

  • @kerim.peardon5551
    @kerim.peardon5551 22 години тому

    John: I'll experiment scaling up to see what structures can be made. Me: He's about to build the Coliseum in the Outback.

  • @JoshMo1993
    @JoshMo1993 22 години тому

    Did I miss the Book release??

  • @evgen57ruschernov77
    @evgen57ruschernov77 22 години тому

    👍👍👍

  • @SIRborioVojta
    @SIRborioVojta 22 години тому

    You could try this ratio: 1 Ash, 1 Sand, 2 Clay

  • @gustavchambert7072
    @gustavchambert7072 22 години тому

    I swear I have seen you make ash bricks, and calcine ash pellets in bulk in the brick furnace. I think that was when you made the brick hut. Was there a specific reason you chose to calcine the pellets one by one this time?

  • @okihiansf67
    @okihiansf67 22 години тому

    😮😅Diese serie wird nie alt.Die muhe,die sie in diese gesteckt,ist unglaublich🙌Dangke❤️❤️😠🤗😘

  • @okihiansf67
    @okihiansf67 22 години тому

    😍🤗She's MIGHT just be the most humble and heartwarming person to exist❤❤❤️🥲😘🙂

  • @xondominique2602
    @xondominique2602 22 години тому

    wow did not suspect there was such a massive fascination with primitive living! peculiar

  • @linkx3r031
    @linkx3r031 22 години тому

    i just wanna say man, this is your BEST video yet! (imo), been watchin u since basically the beginning of the channel for so many years now. much love <3

  • @linuxstreamer8910
    @linuxstreamer8910 22 години тому

    for me this are very calming videos no voice over & music just a dude making stuff & using cc to explain things is a great touch

  • @downformexico5470
    @downformexico5470 22 години тому

    Primitive Technology going scientific love it!

  • @Miaa69.
    @Miaa69. 22 години тому

    Jeder Tag mit dir wäre ein Happy End. Es geht um die besondere Stimmung, die ich von dir bekomme.❤️❤️ 🥰

  • @Ciscoql
    @Ciscoql 22 години тому

    What's the point of making new things if you're just going to keep reusing your old stuff? It's actually getting really annoying to watch you make something new and then never use it.

  • @xavierweber5771
    @xavierweber5771 22 години тому

    truly amazing

  • @nianyiwang
    @nianyiwang 22 години тому

    soon enough this guy is going to find some villagers and build his iron farm.

  • @Mikecrawfone
    @Mikecrawfone 22 години тому

    Great stuff, John! Thanks for doing all this

  • @paultheplausable
    @paultheplausable 22 години тому

    I'm interested in seeing how every technology on this channel scales using only primitive methods. While these examples are interesting I'd like to see how far they can be taken.

  • @KorhalKk
    @KorhalKk 22 години тому

    Couldn't you make a crusher so you don't need to repeat some processes you've already cracked open?

  • @jocax188723
    @jocax188723 23 години тому

    John, if you end up with some sort of geodesic concrete bunker by the end of this I'll be amazed and astounded, but not surprised.

  • @TheExdeathAlive
    @TheExdeathAlive 23 години тому

    Hi, what was the grate made of?

  • @PeterPounders
    @PeterPounders 23 години тому

    While I appreciate all the work put into these videos, I do miss the older content where he made things like bows, arrows, slings, etc. I can only watch so many making bricks and forging videos.

  • @tripleverbosity
    @tripleverbosity 23 години тому

    Getting an ember from 30 seconds with fire sticks never ceases to amaze.

  • @Zuper4Man
    @Zuper4Man 23 години тому

    He's gotten close to the fire with the camera before, but 8:33 is next level

  • @three7s69
    @three7s69 23 години тому

    I swear, I'm getting welts and blisters on my hands every time I watch this guy start a fire.

  • @LyCalikeDiscovery
    @LyCalikeDiscovery 23 години тому

    You are so talented. Please take care of your health

  • @kazakh-interista
    @kazakh-interista 23 години тому

    what would happen if you added salinated water?

  • @user-ir8sx2lc8b
    @user-ir8sx2lc8b 23 години тому

    What conclusion do we draw from this? Which one, sir? The dude made lumps of shit. Yes, sir. It remains only to understand why he made them. ....

  • @sianarlira3305
    @sianarlira3305 23 години тому

    Thank you for interesting video!

  • @HenryKlausEsq.
    @HenryKlausEsq. 23 години тому

    I like how we're moving into sampling. Even the ancients were doing R&D.

  • @fouadhoblos3611
    @fouadhoblos3611 23 години тому

    There is things I am waiting for you to make.. a primitive distillery.. and some glazing paint for the pottery..

  • @keith3761
    @keith3761 23 години тому

    Do you have any issues with the products causing a chemical reaction with your skin/hands? chemically burning or damaging them? or is it very safe to handle?

  • @acolize8883
    @acolize8883 23 години тому

    Finally, he shows us how to make thingamabobs

  • @TheRafaelRamos
    @TheRafaelRamos 23 години тому

    I hope he discovers Roman cement, that will help him to build the monument ☝️🤓

  • @AdamSeiler
    @AdamSeiler 23 години тому

    a tame lizard

  • @amandahugankiss4110
    @amandahugankiss4110 23 години тому

    about to hit us with that cinder block..

  • @janjoska2549
    @janjoska2549 23 години тому

    Maybe advance to bronze age?

  • @elongated_muskrat_is_my_name
    @elongated_muskrat_is_my_name 23 години тому

    Can't wait for him to use this material to build his own Barbican Centre entirely by hand.

  • @corro202
    @corro202 23 години тому

    Awesome video.