Perfect Aircrete, Kitchen Ingredients [video]

https://www.youtube.com/watch?v=z4_GxPHwqkA

30•surprisetalk•6d ago

Comments

WorkerBee28474•1h ago

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.

[0] https://www.youtube.com/watch?v=Y0HfmYBlF8g

tartoran•1h ago

Wow, this is a fantastic material. Hope to see it used soon

ansgri•1h ago

It really is amazing, you can build a whole 2-story house out of it quickly using polymer-based glue instead of mortar, only using traditional reinforced concrete in some critical places. Was quite popular in russia, last I checked. Unfortunately hard to find in some better CIS countries.

lm28469•29m ago

You can also build brick walls without mortar, some of them even contain insulation, you just need to plaster both sides and you're good to go. Porothern dry fix is a good example

I had the choice between aircrete and that for my house and went for good ol bricks instead

MaxikCZ•1h ago

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?

aidenn0•1h ago

Concrete is cement plus aggregate (it doesn't have to be sand; it could be gravel, for example). Coarse aggregates wouldn't work well in this, but it would be cool for a followup video where sand is used.

The wikipedia pages suggests that this is more prolery referred to as "foam mortar" or "foam cement"

https://en.wikipedia.org/wiki/Foam_concrete

mikewarot•1h ago

He had a note up that said he's been having some luck with a major addition of sand, but it'll be a bit before the video for that goes up.

schiffern•1h ago

Yes, aircrete mixes usually don't contain sand. This isn't something unusual about this video, it's true for most aircrete recipes.

Another method: https://www.youtube.com/watch?v=tnNua21zx78

leguminous•1h ago

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.

stoneman24•59m ago

There was recently a crisis in older publicly constructed buildings in the UK that were built [0].The aerated concrete had a limited lifespan especially if it was damaged and had contact with water.

Lots of people looking for compensation and claiming mis-representation.

[0] https://www.bbc.co.uk/news/education-66669239

schiffern•1h ago

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

mikewarot•1h ago

I think this might make a great material for large machine tool bases. Concrete lathes have been a thing since WW1, but not common.

sitzkrieg•58m ago

nighthawkinlight's entire youtube channel is full of practical gems. i used several of his waterproofing techniques to flawless effect

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Perfect Aircrete, Kitchen Ingredients [video]

Comments

How uv got so fast

How Lewis Carroll computed determinants

Experts explore new mushroom which causes fairytale-like hallucinations

Package managers keep using Git as a database, it never works out

I Think about Kubernetes

My insulin pump controller uses the Linux kernel. It also violates the GPL

Gaussian Splatting 3 Ways

MongoBleed

LearnixOS

FFmpeg has issued a DMCA takedown on GitHub

Show HN: Witr – Explain why a process is running on your Linux system

Perfect Aircrete, Kitchen Ingredients [video]

Show HN: Xcc700: Self-hosting mini C compiler for ESP32 (Xtensa) in 700 lines

A Proclamation Regarding the Restoration of the Dash

Unix "find" expressions compiled to bytecode

Rob Pike goes nuclear over GenAI

Migrating my web analytics from Matomo to Umami

C/C++ Embedded Files (2013)

The Algebra of Loans in Rust

Ask HN: What did you read in 2025?

Parasites plagued Roman soldiers at Hadrian's Wall

Show HN: AutoLISP interpreter in Rust/WASM – a CAD workflow invented 33 yrs ago

What happened to all the gold Spain got from the New World? (1985)

ZJIT is now available in Ruby 4.0

High school student discovers 1.5M potential new astronomical objects

Joan Didion and Kurt Vonnegut had something to say. We have it on tape

Sandbox: Run untrusted AI code safely, fast

TurboDiffusion: 100–200× Acceleration for Video Diffusion Models

Geometric Algorithms for Translucency Sorting in Minecraft [pdf]

Overlooked No More: Inge Lehmann, Who Discovered the Earth's Inner Core