DIY

TIL you could also use aluminum powder:

Foamed concrete differentiates from (a) gas or aerated concrete, where the bubbles are chemically formed through the reaction of aluminum powder with calcium hydro oxide and other alkalies released by cement hydration and (b) air entrained concrete, which has a much lower volume of entrained air is used in concrete for durability.

For those that would like to test that recipe as well, I found it here from that video:

Lightweight aerated concrete dry mix design

Basic recipe for non autoclaved lightweight aerated concrete (aircrete) with 600 kg/m3 density:

To make non autoclaved lightweight aerated concrete you need:

- Ordinary Portland Cement

- Limestone powder (particles up to 0.05 mm)

- Aluminum powder with water coverage 15 000 cm²/g and more.

Dry mix formula:

50% cement (by weight) + 50% limestone powder (by weight). I mean for 1 kg of dry mix you need 500 g cement and 500 g limestone powder

Mixture formula for 600 kg/m³ density:

1 kg of dry mix 0.65 liters of water 1 g of aluminum powder for 100 kg of dry mix you will need 65 liters of water and 100 g of aluminum powder

How to mix it:

1. Add water in the bucket

2. Add dry mix in the water and mix it for a couple of minutes

3. Add aluminum powder and mix it 1 - 2 minutes.

4. Pour it in the mold

Did anyone try to use aircrete as plaster instead? I wonder if it might be viable too