alt Hacker NewsPerfect Aircrete, Kitchen Ingredients [video]
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Aerated concrete is an established building material in some parts of the world. In Europe, a big manufacturer is Ytong, and they even make precast panels in addition to blocks.
It's made differently from this, though. It is aerated through a chemical reaction rather than mechanically.
nighthawkinlight's entire youtube channel is full of practical gems. i used several of his waterproofing techniques to flawless effect
I heard about aerogel as a kid and only recently learned how extremely hard it is to make [0], so this seems like a cool and more accessible material in the same vein.
Just started watching this, but if anyone has seen similar material used for some form of retaining wall (even 1-4' high), I'd be happy to hear about it. Got a lot of slope to deal with, and materials for attractive retaining walls add up.
I think this might make a great material for large machine tool bases. Concrete lathes have been a thing since WW1, but not common.
Love the enthusiasm but people get PhDs just for concrete. This stuff has been around for a very long time.
I always thought of concrete as cement + water + sand.
This video makes aircrete with cement + water + thickening/foaming agent, but it doesnt use any sand, no?
I saw this days ago. The problem is validating strength and integrity over time. That sort of long-term follow-up and scientific, repeatable destructive testing doesn't fit into a short video. Evangelizing unproven construction methods and materials is reckless without context and nuance.
When an office building was built in any earthquake-prone area that housed a nuclear engineering consultancy I worked in for several years, multiple test specimens of concrete were poured and kept for later testing and evaluation, and extra ones were kept should there ever be a question about the concrete's quality in the future.
Wow, this is a fantastic material. Hope to see it used soon
Fuck aircrete. My house has aircrete blocks in the extension and you need special expensive wall plugs to attach things to it that are rated to a grant total of 25kgf.
Because nobody would want to actually hang heavy things on their wall right??
I like the idea of a lightweight concrete like material that can be used to make houses more durable. Is there a way to replace drywall interiors with this or something else? I really hate how susceptible drywall is to things like moisture and mold, but also how repairing it requires a dusty and messy process of cutting, sanding, mud, tape, and all that. It would be so much easier to have waterproof durable panels that can be opened to access the interior wall spaces (for electrical or plumbing stuff). Is there a solution?
Note that aircrete itself has existed for decades, but production of aircrete has typically required buying (or DIY-ing) a high-capacity foam generator.
What's novel in this video is the production method, which uses only a standard cement mixer.
The 'traditional' method is here: https://www.youtube.com/watch?v=tnNua21zx78