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The Wood ash cement and fired brick hut is 2 years old today and still standing (  https://youtu.be/eesj3pJF3lA  ). It used wood ash cement which I developed back in 2018 (  https://youtu.be/DP0t2MmOMEA  ) and fired bricks (  https://youtu.be/FwRFH7MH5N0  ). Unlike mud and timber framed structures, cement and brick ones will not dissolve or rot in wet climates due to their durable properties. 

Nope. 

The wood ash cement and fired brick hut is 1 year old today (built in this video:  https://youtu.be/eesj3pJF3lA  ) . It demonstrates the effectiveness of the wood ash cement as a building material. I developed wood ash cement back in 2018 due to a lack of limestone for cement in my region (  https://youtu.be/DP0t2MmOMEA  ). The material is made by taking wood ash and heating it in a kiln or furnace to a high temperature with lots of oxygen (calcining) as one would for limestone and then mixing it with an aggregate such as sand or crushed terracotta. The mixture will then set when it dries and become insoluble in water, an important quality for building in wet climates where the rain would otherwise dissolve mud structures. The benefit of this material is that it can obtained from wood where limestone is absent while it uses waste ash from firing the very bricks it will eventually mortar together. It can also be used as a material on it's own to make cement pots for example (  https://youtu.be/rG6nzrksbPQ  ). 

Well said, a good collaboration. 

Here is my interview in the courier mail that they asked me to share as a community post here on YouTube. There is a pay wall to read it though that I was un-aware of at the time. have a look if you're interested.
https://www.couriermail.com.au/news/queensland/qweekend/primitive-technology-how-john-plant-captured-imaginations-worldwide/news-story/2a30e9e28ce892985f60b12e6eac08b9


Still working on next project but am also observing a fire ban which is in place which is holding up said project. I'm making kiln made from bricks, for firing bricks so I can build larger structures. Thanks for you patience.


Edit: link to picture of article on Redit (to get around paywall): https://www.reddit.com/r/PrimitiveTechnology/comments/dx0ad8/this_morning_in_the_queensland_courier_mail/ 

There is a Reddit page about primitive technology if anyone is interested. One of the mods asked me to share it. It's basically a community of primitive technology enthusiasts who share their questions and projects. Have a look if interested:  r/PrimitiveTechnolgy or https://www.reddit.com/r/PrimitiveTechnology/ 

Announcing Reddit AMA on Friday 1st November 6pm AEST/9am BST U/JohnPlant. The AMA will be on the “r/IAmA” subreddit. 
This coincides with the release of my book. It can be pre-ordered here:   http://hyperurl.co/PrimitiveTechnology  Edit: or this one:  http://po.st/PrimTechBook See you there.
EDIT: The AMA will now be happening at 8AM UK time. I’ll also be logging back in to answer some questions from the US later on – looking forward to reading your questions! 

Here's a book I wrote about primitive technology if anyone's interested. It's a detailed instruction manual on the technologies and techniques I've developed on the channel so far. It's a good primer for those looking to get started in the hobby or are just interested in the subject. Thanks.  https://www.youtube.com/watch?v=DquiM... 

Just heard Grant Thomson (king of random) died in a paragliding accident. I never met him in real life but he promoted my channel early on and I never got around to saying thanks for it. He seemed like an intelligent and creative person who inspired many peoples interest in science and invention with clever ideas.  https://www.youtube.com/watch?v=6dTvn... . 

Single ingot made from iron prills sticking to a magnet. The orange color is rust. It seems to be cast iron.