How to hardface aircrete

How to make aircrete blocks with a hard, textured face suitable for outdoor use.
Have you made things out of aircrete and wished that you could add a stone texture, or maybe bamboo, or river rocks? Well, you can't. Aircrete is not really good at taking fine detail, and even if it was, it is too soft to hold up to the elements. You would have to coat it with something durable, thus losing the desired effect.
Until now. In this video we examine the possibility of casting aircrete blocks with a finely detailed, weatherproof surface. Can it be done? (spoiler alert: Yup.)
Turns out, its pretty easy. Just put your texture surface in the bottom of the mold, and put in a layer of hard stuff in before the aircrete. In this case, we used topping mix, but no real reason you couldn't use your favorite finish instead.
If you wanted to permanently color the face while you are at it, you could use the same techniques that they do for stamped concrete. If it holds up to use in a driveway, it should easily hold up in a wall.
What are the drawbacks? well, for one, it would not be as easy to change the bricks once cast. With ordinary aircrete, you can cut it with ordinary woodworking tools. With the hardface, you might have to cut it with a concrete cutter or grinder, or shape it with a hammer.
This process was built with straight vertical walls in mind, so domes might be a little trickier. Probably most curves would have to be thought out in advance.
But for traditional roofed structures, these could be laid like any stone or brick, and topped with a traditional roof. Or a dome. Nothing says you couldn't top a regular straight wall with a dome or other arch.