Primitive Technology: Wood Ash Cement
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- čas přidán 16. 07. 2018
- Primitive Technology: Wood Ash Cement - Creating wood ash cement from scratch
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Partial credit for this idea goes to James Keane who I discussed this with on my wordpress site (see conversation): primitivetechnology.wordpress...
I developed an experimental cement from made only from re-fired wood ash as its cementitious material. It was mixed with crushed terracotta as an aggregate and formed into a cube. The cement set hard after 3 days and did not dissolve in water after this period.
Process: First I burnt bark and leaves in a kiln at high temperatures to produce well burnt, mostly white wood ash. The ash was then mixed into water and stirred well. The excess water was poured off and the resulting paste was made into pellets and allowed to dry. A pellet was then re-heated in the forge until it glowed about orange hot. This was then taken out, cooled and dropped in a pot of water. The pellet dissolved and boiled due to a chemical reaction with the water. The paste was stirred and crushed terracotta (old tiles from previous projects) was added and mixed to form a mouldable mortar. This was formed into a cube and allowed to set for three days (in the video, a cube made exactly the same way 3 days previously was used due to time constraints). The resultant cube was strong and made a slight ringing sound when tapped with a finger nail. It was placed in water for 24 hours to simulate a very heavy rain event and did not dissolve or release residues into the water.
My current theory: The main component of wood ash consists of calcium in some form (e.g. calcium carbonate, calcium oxide). This can be up to 45% from my research. Calcium is in higher concentration in the bark and leaves of a tree. When the ash is mixed with water, the soluble component of wood ash (10% pot ash) dissolves into the water. But seeing that it does nothing for the cementing process, it is drained off leaving the insoluble calcium (and other components) in the paste. Doing this probably raises the relative percentage of calcium in the paste to about 50% or more. Most of the other 50 % consists of silica and alumina which are pozzolans, materials that chemically react with calcium hydroxide to increase the durability of the cement product. The paste was then made into a pellet and fired again to high temperature to convert all the calcium compounds to calcium oxide. It also reduces any charcoal in the pellet to ash if it hadn’t already been burnt the first time. This step seemed important as un-fired ash pellets only partially hardened and would fall apart in water, though retaining a weak undissolved 5mm thick crust. I can only surmise that re-firing the ash just gave a greater conversion of the calcium components to calcium oxide. The pellet is slaked in water converting the calcium oxide to calcium hydroxide. This cement was mixed with crushed terracotta which may also help in some way that I’m not aware of as I only did this one experiment and did not test other aggregates yet (e.g. sand, gravel etc.). Terracotta is porous and might hold together better than other materials. The mixture is allowed to set in air where carbon dioxide reacts with calcium hydroxide to form calcium carbonate cementing the aggregate together. After this, the cement will not dissolve in water.
Use: I think this material might have a potential use as a mortar holding rocks or bricks together in wet environments where limestone or snail shells are unavailable for making cement. Wood ash is a pretty ubiquitous material to most natural environments inhabited by people using biomass fuels. Wood ash cement turns a waste product into a valuable building material. From my research, wood ash is already being used as a partial replacement for cement in the building industry without decreases in strength of the final product. But I’ve only just started experimenting with it and don’t know its full capabilities and limitations. Calcium content of wood ash differs depending on the species of tree, the part of the tree burnt and the soil it’s grown on. Cautious experimentation is still required before committing to a hut built from this material. - Věda a technologie
I think I have the chemistry right. If any chemists are watching correct me if I'm wrong. The calcium compounds are converted to calcium oxide in the second firing, turn to calcium hydroxide in the water and then set to calcium carbonate in the air. There maybe a pozzolanic effect due to the alumina and silica in the ash too. The end product is a cube made only from wood ash (fired twice) and crushed pottery. It sets hard after 3 days and will not dissolve in water even when fully submerged for 24 hours. Thanks.
😘😍
xland44 If your out in the middle of nowhere and you can make this what can you make? A hut a weapon many things.
xland44 I think he's just doing a small batch to make sure he has the mixtures and processes right. Once he gets it right I'm sure he'll start doing on a larger scale
chemist here. Spot on. The calcium hydroxide reacts with the CO2 in the air, giving calcium carbonate. Careful with both calcium oxide and calcium hydroxide, they are very aggressive, on the eyes in particular. Also, be careful on the oxide to hydroxide reaction. It produces a lot of heat and can boil the water quickly, spraying everywhere,
I'm just gonna say your right because I'm shit at chemistry
Hello, I’m chemist specialized in chemistry of construction. What you did is a pozzolanic cement. Your mix with lime react with the calcined clay (your clay certainly contained some kaolinite which was partly turned to metakaolin because your furnace not enough hot to fully burn the clay). It’s some kind of Roman cement. If you would add some clay and limestone into the wood fire, you could make some kind of hydraulic powder, just the setting and performance wouldn’t be regular as you can’t finely adjust the composition but it would be enough to make some mortar. Also congratulation for your work :) that’s very nice
I like your funny words magic man!
_😄_
He legit with it
Man, being knowledgeable is always such a big advantage
@@roksy8856 🤓🤓🤓
I don't think I will ever get tired of watching your videos
Not even after hundreds of people copyed his style and main topic. He's the granddaddy of them all here.
Especially since he doesn't post them like every day
Mahir Cave I feel the same way
Mahir Cave mahir türk müsün ?
Its like ASMR right?
as an additional project for anyone that wants to do this, the water that you pour of the ash can be used for other projects, it contains lye which can be mixed with fat to create soap, but is also used to preserve and even prepare food in some parts of the world.
Hominy comes to mind for the food.
@@ermakers1297 what is hominy
@@SnowyGolem hominy is corn treated with lye. Olives are also cured using lye.
Bro you ain't gotta lye to kick it, alright?
@@SnowyGolem
It's like corn nuts but if they were uncooked, and you soak it in water, it's soaked in lye to nixtamatlize the corn so that the starch is available for digestion...or soaked in lime.
It makes the kernels bigger I'm pretty sure... it's used in soups and stews and it's really good. It has another name but I can't remember. Posole, or chicos
Props for putting the crafting recipe at the end
czcams.com/video/y1cC4KWFKuE/video.html .
I recently learned that enabling captions on your videos completely changes everything! Amazing!
thanks!
Insert 'mindblown' gif
Eliminator Performance all this time I thought he was just showing off, turns out it's a tutorial
Damn
Holy shit. I did not know.
Eliminator Performance same here did that for the first time, and I was like it has lot of info
As someone who builds concrete walls and foundations, this really inspires me. Ive wanted to figure out an alternative for doing footings using natural materials, as well as building earthship type structures and something akin to this is what I'm leaning towards. It would take tons of prep, but I live in the wealthy side of the Appalachian mountains and the bougie hippies might be willling to foot the bill. Thank you Primitive Technology!
I just discovered your channel... and out of years skimming youtube... this is the first channel I can focus on each episode and practically write notes. I bought your book and I am hooked... this is AMAZING!
Primitive Technology, I know you've got loads of comments to read, but concrete technologist here - from a mix design perspective, as I believe I've read in another comment that you posted, you want to use very little water when hydrating the pellets. This is your water:cement (w/c) ratio, and determines your strength. You basically want to use just enough water to get cementitious material mixable - a .45 w/c is roughly equivalent to 4000 psi. However, it's based on volume, not weight, so if you have a pellet of a certain size, you'll want to use a comparable "pellet" of water that's about half of that for high strength. It is much harder to work and shape at that ratio though. If you do this, if possible, after the piece has hardened to the touch, you can get more strength by submerging the item in water for a few days to further hydrate any remaining cementitious particles.
So a water: ash pellet ratio by volume of 1:2 is recommended.Thanks, I'll give it a go. What about if I wanted to use this as a mortar for bricks, is it the same? I'm thinking of firing clay bricks then use the ash to make mortar for the them.Thanks.
+Primitive Technology OMFG
Usually mortar mixes are similar in w/c ratio and all sand. This creates less strength, but more workability. The ideal mixture for finishing comes down to particle size - ideally, the tightest finish has particles of every possible size from your largest grain of sand down to the smallest pozzoloan, as well as keeping water content low. You want just enough cement paste to cover the aggregate, no more. Rule of thumb is 1 water:2 cement:6 sand(or fines).
If you want something more porous for filter use as someone else mentioned, you'd want larger aggregate, very little sand and less cement paste with a higher w/c ratio.
For a bush concrete recipe I've seen used before, get a container and use 1 water:2 cement:5 sand:5 rock. This will produce something similar to most modern construction.
If mixing manually, I'd mix the paste first like you did, then make sure you get good coverage on your aggregates.
Thanks Jeremy. I'm writing all this down for future reference, much appreciated.
No problem. Glad I could offer some help. Great content by the way. Really enjoy what you do and the format as well.
I suffer from insomnia but watching your videos at night helps sometimes. There’s a calmness and humbleness to them. The fire cracking, water rushing, it’s the primitive things that bring me down to earth and relax my mind😉
Ah yes, the “primitive things” like watching CZcams videos
@@yauker people have insomnia. It’s not being lazy or eating too much sugar in the night. It’s literally a sleep disorder that people have trouble falling asleep.
Reject modernity return to monke
Consistency is key for ur circadian rhythm amigo....go to bed and wake up same time for a couple months your body will develop a crazy internal clock. Youll be waking up 30 seconds before ur alarm goes off every morning.. also try not ot looking at ur phone or any blue light screens like tvs for 3 hours before bed, trust me youll be out like a light.
'I suffer from insomnia but watching your videos sends me to sleep?' Not a compliment, necessarily...! (Joking)
You never cease to amaze me with all of the knowledge that you share. Glad I found your channel
Your time and effort is really exceptional. You may or may not be aware of some great research material. One, the “ Millers plastering plain and decorative. And English heritage practical building conservation.
Mortars, renders and plasters.
Books worth their weight in gold!!
Keep up the amazing work.
Time to build a castle!!!
yeah in 2050 he will build a nuclear reactor
Xd true
First build a wattle and dorb half timbered timber frame house
They do this in france without any technology
He'll need to upgrade to the Castle age first!
Primitive Technology: 8.5 Mil Subs without uttering a single word
Ya Boi with no scummy click bait either
Can we just acknowledge ya boi’s username 👀👌🏾👌🏾👌🏾
Ya Boi he’s howtobasic
The Bacon Army HEY WHATS UP GUYS TODAY WE 🤮🤮🤮🤮🤮🤮🤮🤮🤮🤮
8.7
Hey John I've been watching you for awhile now and am re-watching. Have you figured out how to make glass with primitive tools? I'd love to see that.
Good luck with the Iron Age!
Melt sand
🤗Ага. И пуленепробиваемое.
@@user-wh3md6si7q Вы запустите свою примитивную волоконно-оптическую сеть
Cirno?
@@seronymus I identify with the facial expression
Спасибо огромное за Ваш труд и что делитесь своими знаниями
Up Next:
Primitive Technology: Wood Ash Cement House
:Part 7
Screw a house, he's gonna build a friggin aquaduct next!
He'll build a castle
too much wood need
and too much time
SkorpionMarauder yup, he gonna go full on Roman
When PT uploads, the world briefly becomes a better place.
Thank you so much! This is a game changer! I’ve been needing to redo my cement floors in my shed (cause it was originally a goat shed, so the concrete is a mess) I’m so glad I stumbled upon this!
John just so you know me and my brother have been watching your videos from the beginning and look forward to seeing your possible show thankyou you've been a great inspiration for us and we think your just awesome!!
3 Year ago: Simple shelter
2 Year ago: Tools
1 Year ago: Pottery and some stuff
Now: Cement
1 Year later: Generator
2 Year later: New city
5 Year later: Nuclear bomb
10 Year later: New World Order
mining and refining will be next
I think all he needs for new world order is 5 years
How long for him to start making glass
This joke has seized to be funny after the first 1000 times.
irrigation systems through natural gravity and streams next
This video is only nearly 4 minutes long but he can compact so much in those 4 minutes. My hat goes off to you sir!
Black Wolf chemistry at work in 4 minutes. Educational *AND* entertaining.
just purchased your book on Amazon. thank you for all the years of knowledge and skills you have passed on. I look forward to going over your book.
No joke i came back to this three days ago to make sure i could easily make sure i could teach my students how simple it can be to make something so substantial.
This morning i found a clay deposit and grabbed a couple of pounds so i could fire a few tiny bricks just to mess around with.
Fascinating use of ash which made me think of other uses such as lye soap. Then that made think of an episode you might consider on primitive hygiene. How to make soaps, tooth paste equivalent, tooth brush, wound dressings, antiseptics, etc. just a thought. :)
Jonathan Landwer yeh our pampered asses wont survive in the wild all dirty n stinky . Need that luxury bathroom .
Most of those require some animal products. Soap needs fat and lye. Toothpaste needs charcoal and powdered bone or shell. Toothbrush needs hair/bristles. It would be interesting to see some trapping/hunting though! But likely that's not legal where he is.
He's up in Queensland - so maybe pest species that shouldn't be in the bush. Cane Toads maybe?
How to make the most important medicine humans have ever created. Antibiotics.
A lot of those would be incredibly location-specific. Useless to anyone outside of Australia. Soap and toothpaste? Yeah, those have equivalent ingredients just about anywhere..... but wound dressings and antiseptics are likely to be herbal. Tea Tree oil is a hell of an antifungal, but you really don't find it outside of Australia. (I think it's been transplanted to Southern California among other places? But not many.)
Before you start building some tower, I just want to tell you that the height limit is only 256 blocks.
Ha 🤣
😂😂😂
ah
Lol
daniel barucha r/wooosh
This is the knowledge that we need now in 2020, thanks for sharing
Congrats man..dedicated and accurate as always..this guy is not prep expert theorist..he is the real stuff
Studied civil engineering for 4 years. Never knew you could make cement from tree bark and branches. You, sir, are a god. 👏
Yrimir = Terraria god
Primitive Technology = real life survival god?
Pls delete the last sentence....you might regret not listening to me
Nepu -chan nothing happened
+KieferPlayzFTW Nah can confirm. Am dead.
KieferPlayzFTW one day he will....God is one...and is saying there is another God
I know there are other channels like yours, but I always appreciate yours the most. You take the time to explain what you're doing (through CC) and you're the OG.
I just watched a video of how Roman make cement! It took 200 steps and went staright this video! Thanks man! You make my life easier!
An excellent job showing how to make the cement. Thanks- much appreciated…
3:48 The Primitive Man has finally evolved the ability to do math
meowgoesthedog mathematics tech tree unlocked
*meth
The one true primitive technology channel that isn’t just digging holes with sticks and eating food making slurping sounds.
This guys a Work-Horse !! Great work 👏 hello from Arizona U.S.A. Im lucky to have bags of concrete. Respect broughe !!!
First saw the vid and thought:”wow”
Then read the description and was blown away
The best content on CZcams
chbrules *FUNNYDANK*
New profile pic nice
old gregg understandable mistake, I thought the same too
these rip-off channels are pretty pathetic :DD
Too much Bailey's drunk from an old shoe, you start making mistakes like that. Don't hurt me. :3
Primitive Technology doesn't own primitive technology videos, everyone can make them.
yet there is a specific definition for "rip-off"
Excellent. I have been learning about making lime from seashells etc but was unaware that the calcium carbonate is also available from wood ash. Thank you for sharing this valuable information.
I think primitive technology is one of the most advanced. The reason is you can access it everywhere and always utilize it. It is easy to maintain and repair when needed. It provides the means to live somewhat comfortably in times of dire need. Knowledge everyone should know for the time you may find yourself unexpectedly stranded. You might be able to survive depending on the climate.
I still can't believe your videos have captions. It's completely changed how I watch your channel.
Drew Smithson I thought that whole caption thing was a meme when I first found this Channel
Holy crap! There are captions?! I’ve been watching this guy for a long time and never realized that.
Time to watch them all again.
Modern Technology
Holy shit!!
What the fuccc.
Turn on Closed Captions for full description of the process!
Who else went back an rewatched wit CC on? I know I did.
Thanks, but I prefer the silence.
Yeah, those loud ass words on the screen are TOOO loud...lol
Text doesn't make any sound :P
got em
The apparatus you built to bellow the fire is flipping fantastic!
i cant be the only one thats shocked by how simple cement really is.
This is not real cement. This is more like mortar. Real, industrial cement is a lot more complicated.
@@MagnificentXXBastard this is just like the cement the romans made so yeah, it will only last a couple thousand years or so.
Wow the changed avatar almost threw me off, thought this was a ripoff channel for a sec.
IE B haha same here
me too thanks
same
Ya how many other "ripoff" channels out there? I avoid them too.
IE B yeah there's like a lot of rip off channels copying this guy.
I love the new logo!
This channel should be a reference for any survival crafting game out there, using primitive tech to build and craft stuffs.
There's no stopping this fella , brilliant.
He needs a competitive neighbor who race through the tech ages!!!
Poisonedblade WOLOLOOO
Poisonedblade the primitive channels that copied him sort of are
Nice town - ill take it
I just love the AoE references in this....... Stone. Need more stone! Anyway, 4,000 years of history are going to take some time to cover....
2
2
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22
2
w
22
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W
W
1
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*any lobby of age of empires*
Sleep or watch this. I think that's been the easiest decision I've ever made.
Awesome video.
It's only 10pm boi calm down
have a good sleep!
Callan Nichols it's 4:09 for me
BaRKy Sleep
Fall asleep while watching this.
I seen on discovery Channel nearly 20yrs ago, the romans pretty much used this same method. Thanks for the video
Now this is informative ! Fantastic lesson and in less than 4 minutes ! Great video !
Next time on Primitive Technology- How to make a stone cathedral
Our OG aussie nature boy stepping up his game to take on the Asian guys!
wait, there's more people doing things like this?
There’s like 100 ripoffs of this channel all called like “primitive life” or some shit
cameron robertson but this one is the only one for me tho..i'll never watch any other ripoff..
You can't rip off someone if your ancestors did it first.
InsolubleToaster
There has been a ton of copies but this guy is the original
god bless you for showing this, I don't know about a hut, but it looks like it would be a good primative caulk to seeal up some thing already built and it looks to be a fairly heat resistant substance for fire places.
I remember watching this guy and Mr Hacker's first videos when they both had under 100 subscribers. In 5 years they've grown to be very successful channels. Proud to say I was here before 100 subs.
I accidentally did something similar. Charcoal grill was full of ash so I dumped it in the rock driveway. Later that night it rained and I now have a small corner that's cemented
concrete* cement is an ingredient
You have to wonder if scenarios like yours are how things like cement or wine or cheese were invented; weird convoluted processes that make a useful outcome.
@@brandonboogers I heard from a friend of mine (he studies prehistoric archeology) that a theory of how humans learned about melting metals was through burning pottery as a byproduct.
@@brandonboogers i always think that about bread.. .whos idea was it to make that first :P
@@bradleycraigie-williams9310 or who came on the idea of eating an egg. "I am going to eat the next thing coming out of the chickens asshole"
This is what I love about PT, all the other knockoff PT channels don’t tell you what’s going on and they usually fake the work, but PT pits in the effort and does the maths and chemistry behind his creations
I really like these types of videos, I play around with different materials and see what I can come up with, greetings from the UK!
Love learning about stuff on this channel.
For those who don't know, turn on the closed caption to read what he's doing.
You the real mvp 👏
Omg! Thank you!
I didn't know about the CC until I watched the last vid, and watched nearly all his vids.
Thank you
"Here's one I prepared earlier"
This is a cooking show now.
he could've just edit it "3 days later". probably he loves watching cooking show....
ORANG MIN
No, no. It would've been better if he made a 72 hour video with an unobstructed view and just uploaded the whole thing so we could watch the cubes dry in real time.
I'm going to try it. With all this cold weather in the states we've been using the fireplace and have accumulated a large amount of ash. Might as well put it to good use.
Kudos sir, bring us all back to the basics...
Boom! He’s back! Love the original channel the most!
Rob Backyard Gardenerr woah rob I’m subscribed to you.
Preston Bozeman Thank you!
Hey rob!! Love your coin vids on the other channel
Don't forget the captions, everyone!
I find his videos more enjoyable without them. He tells you everything you need to know though the visuals.
Sunnyv2 brought me here and got you a new subscriber! Your work is awesome and I’m looking forward to watching the rest!!
Everytime i see you videos. I remember age of empiries, in primitive times. My vilage people, goes to cut firewood, mining rock, hunting meat, fishing...
Very nice, tks for video.
Brilliant work. Thanks for the consistently awesome content and for being an inspiration to myself and others.
You are an inspiration also...
Hope you will complete wood gas series :) Waiting for it.
Im planning on making a wood gas gennerator but i have a few concepts on purifying it faster and using liquid nitrogen to make it a crogenic and able to store more
What country does this guy film this in?
@@bigaidy1481 Australia
still available after patch 2.09?
Been around since the beta. I dont think the devs will change it.
we are already patch 17.07.2018.pcn
No , devs fixed that. Now you have To use lava as consumer.
I think it is but it's only in the northwest, the devs seem to like that section of the u.s level map
LOL
Thank you for being simple and to the point
I was quite frustrated because I wasn't understanding some of the things you were doing.....and then I realized you had CC and explained everything!!!!
PRO PRIMITIVE TECHNOLOGY TIP :
Turn on captions :)
Shor's bones, *Bows.*
Aww dude I totally forgot thanks for reminding me
I have had them on it’s funny for some vids like a guy cares and it goes guy “gives a fuck”
Shor holy crap thanks
I always watch it without subtitles first and then watch it a second time with subtitles because I hate my life.
Normies got face reveals
This channel waitin on a voice reveal
Sticky_Cheese Cuz what if he lost his voice
Daniel K fuckin sucks then aye, kinda imagining his voice to be high pitch though ngl
Thank you! Your videos are really helpful.
Great video, thanks for showing us. Take care.
That's so complicated and cool.
ITS NOT THAT COMPLICATED 3:48
i see you many times in crh
Not complicated than a cook an egg
ziljin how tf is this complicated 😂😂 very simple it’s primitive technology.
Hey, I love your stuff! Although I was wondering if we could see this cement be used as a mortar? I'd love to see if it could adhere stones or mud bricks together because if it can, you can just straight up make a house. No more huts, we're talking advanced masonry now!
I know I’m 3 years late, but in his book it says it can be.
@@rowanbcapr oh sweet, thanks!
@@lavendersugar143 didn’t actually expect you to respond! Hope all goes well
@@lavendersugar143 hey, 2 months later, he’s made a video doing it haha
@@techheck3358 the internet is so cool.
thanks for the comprehensive instructions
02:06 Brave little critter approaching Mount Doom to throw in The One Ring.
Im a simple human, i see primitive technology videos, i click.
Don't know why but I thought that was his leg at 2:01 😂
Thank you for your experiment. I watch this 3 years ago and finally i try. Not successful, but will try again.
Nossa isso é incrível,adorei essa dica apesar de achar que nunca irei precisar.
I’ve heard of and used “survival cement”. It’s basically a blend of mud, clay, grass, and pine needles for building. But never wood ash cement! Pretty interesting stuff. Thanks for posting.
Yes I've heard of it too. This stuff is superior as it won't dissolve in the rain. Better to burn the pine needles and grass to ash and then mix them in. One study in northern Europe showed the composition of pine ash was almost identical to Portland cement. Thanks.
you should try to make a stringed instrument.
gta and more that would be so cool
He'll need to hunt an animal, first.
Stringed instruments were made with intestines in the olde days.
Illogical Paradox I don't see the problem
Same, its Deer slaughtering time
But first he'll need to make weapons and traps, I remember he did have a sling
gta and more no real use out of it
Love the way you did this.
The BEST videos on You Tube . NO talking NO music and the camera is not focused on the end of his nose. Can't stand these videos on You Tube Where the guy uses 5000 words when 50 would do.
Next episode, he will build a massive bungalow out of this
Or a hot tub lol
it will be a 6 story mantion with a pool 80 rooms and 30 full baths and 20 half baths football stadium and jim
He's going to rebuild the Atlantic Wall to repel the D-Day invasion.
Sorry...I've been watching the History channel again.
Jim Brown Next episode, he makes reinforced wood ash cement.
Yes please
The crafting system of this g ame is so realistic, damn
It's modded, tho..
The graphics are so realistic to!
Does anybody know the texture pack he used to make this video?
He is playing on peacefull so its not a real challenge when there are no mobs.
10 years from now:
"Launching the third satellite"
Quando um vídeo tem relevância bom conteúdo e é agradável de se ver , costumamos compartilhar em redes sociais , se o seu vídeo está recebendo esta pequena e singela notificação , é porque é digno de ser divulgado . like e compartilhamento , boa sorte
This does work. Sometimes when we run out of cat litter, I mix any available sand with wood ashes. If I put too much ashes, part of the mix will turn to a very hard concrete that I can not wash off the litter box. I know the urine adds ammonia, but I have not tried this with just water. Thanks for posting.
This guy is like an alchemist!! Takes knowledge to do something like this especially in isolated woods with primitive means.
Imagine sending this guy back in time
🏆Top! Obrigada por compartir essa dica! 👏👏🎖🏅🥇🏆🏆🏆👏🇧🇷
That's amazing - theoritically, this method could be used to make cement 6k years ago, and even earlier!
Pyramids are also ancient geopolymer casing stones....
This method was mentioned in the Holy Quran 1400 years ago
Ever since you did the Limestone video I have been thinking about Limestone and shell alternatives since they are non-renewable/hard to acquire. I'm so glad you found a renewable and ingenious alternative with promising results. Looking forward to how it holds up to full scale house building!
(well technically shells are renewable)
technically, oil is renewable. hell, everything's renewable if you zoom the scale out enough. When people say "renewable", it's implied that the timeframe be within appreciable amounts as far as the human lifespan is concerned. I would imagine it would take a long time for shells to naturally repopulate if they're harvested at once.
Molluscs don't take millions of years to multiply.
All these cement blocks are giving me vibes that he is going to make castle of mud bricks lime bricks and wood ash cement bricks
Have you considered using wood ash to make a protective plaster coating for the outside of your buildings? I'm wondering if this would help with water resistance if you ever decide to make another wattle and daub building in the future.
Thank you for sharing, this is brilliant.