Primitive Technology: Wood Ash Cement

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Primitive Technology : 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.

IE B : Wow the changed avatar almost threw me off, thought this was a ripoff channel for a sec.

Ya Boi : Primitive Technology: 8.5 Mil Subs without uttering a single word

sangetube : That guy is taking Minecraft way too far.

SIMPLE TON : I wonder if those are gym gains or primitive lifestyle gains

A nonamous : 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

Poisonedblade : Time to build a castle!!!

ThomasYTube02 : Can you show us your primitive gym because we know you have one.

Ryan D : This guy would do amazing on 'Naked and Afraid'

Potatou : primitive cocaine

moharexx : Minecraft is so popular they made it into a real thing!

1ls376 : 2:01 I thought that was some ones leg in the fire.

Dead Rs : 2:20 he just put that flaming hot rock in the water with his bare hand

Pendragonx1 : 'Fore long this forest is gonna have paved roads with candle-lit lamp posts down the side leading to a wattle and daub cottage.

Red Gecko1 : He’s gonna show us how to make a sidewalk and whole city 10 years later crafting revolver out of clay

Justin Y. : Woah, new profile picture. Cool!

Detektorpower : As always great video of you. If you need metal, let me know, I'll pass the metal detector

Open World Gamer : Minecraft: Hardcore mode

The Normal Wall : Bruh does this guy even have a home lol

lヽ༼ຈل͜ຈ༽ノ : @Primitive Technology I recommend that you make a geopolymer as the ancients did. 1. dry clay by the fire and powder it. 2. Create acidic plant extracts. In england I would use sorrel, rhubarb etc. I don't know which plants in Aus are highly acidic but they are likely the plants eaten for thier sour taste. 3. Boil the dry clay bowder in the acid and leave to soak, creating a reactive activated clay. 4. Make caustic lye from wood ash, and dry it on the fire. 5. Mix the activated clay with the solid lye in a 50/50 ratio by weight. 6. Mould it to the shape required and leave it in a warm place to cure. It will take up to a week to cure completely at 25c or up to 5 hours in the ashes after a fire. Keep up the interesting work.

Marlin the clown fish : still available after patch 2.09?

Jesus Delgado : can you make a new video already

uoqɐɹ uoslǝu ǝʌǝʇs : 2:20 looks like you was holding a hot rock when you placed it in the water. The lime reaction in the water made it look like it was boiling the water lol

モンハンの天ぷらおうどん : やだ……こんな原始人みたいな生活で強く生きていけるなんて……なんてイケメン!

How Rich TV : Build a Rocket ..go colonize moon like a man!

Poisonedblade : He needs a competitive neighbor who race through the tech ages!!!

Musti KNT : DOLAR 6 OLUNCA BUNLARI İZLİYORUZ bunu yazarken dolar 6mış 7 oldu

Zeb : Build egyptian pyramid?

SlyYer : Adam utanmasa kömürden elmas yapcak aq

リンレン大好き : 私は日本人です あなたの動画はすごく勉強になります これからも動画投稿頑張ってください By地元日本の文化が好きな人

Harry Forsyth : Next episode, he will build a massive bungalow out of this

TheNguyenGPham : Did you steal that thumbnail from Minecraft?

Nezzero : Time to build a castle in the forest in the most inefficient way possible by burning down all the trees!

Crimson Arrow : He should train people to do that like do everything that he is doing

I like trains Haha : Porta oblic

Mahir Cave : I don't think I will ever get tired of watching your videos

Samnang vtube : Wow the changed avatar almost threw me off, thought this was a ripoff channel for a sec.

The Hh : Cool new branding with the channel logo and cover art!

Mythic Cobalt : *_Here's one i made earlier_*

Captain Qwaz Caz : Build a tree house then set it on fire.

Jeff Boski : Turn on Closed Captions for full description of the process!

Muhanmed Omer Sahin : Türklerden izleyen +1

Muhammet Ceyhan : Türk yok mu bi el kaldırsın🙋‍♂️

The Legion : Bork.

Денис Ковалев : Кто русский лайк

Crucial Muzic : Me: Wood Ash Cement, oh that should be easy. Me 2 seconds later: (╯°□°)╯︵ ┻━┻

n.555 jankovic : Lol

Dutch Prepper : So much enjoying your videos. Wish I found this channel much earlier !!

Sıla Öz : Dolar yükselince yerimizi aldık fşddölcöslxçsşxçdndsmnxc

Wassup Productions : —-(👁v👁)—-