What is the production process, function and corresponding production principle of foamed concrete?

Cement (base material)

Coal ash (auxiliary material)

Foaming agent (to produce gas)

Addition (auxiliary foaming agent, so that the gas is wrapped in the cement concrete inside, and not volatile we all know that the water can not be wrapped up in gas)

With a gradual increase in the gas (bubbles), the volume of cement concrete began to increase, that is, foaming, after solidification is foamed concrete.

With the production and practical needs, what early strength agent, reinforcing materials and so on are gradually added. (There are still many versions in the world)

Physical foaming method: foam machine to create bubbles, and then add the bubbles to the cement concrete. The same thing. (This has only been used once, purely out of curiosity, and after reading about it, I realized that the quality really sucks.)

If you are interested, you can ask questions~ I'll answer if I can answer them