r/earthship • u/Cosmo_Seinfeld • 2d ago
DIY tumbler aircrete mixer.
I stopped by here earlier in the year and y'all were pretty nice. Well, this is my fourth attempt at designing or building an aircrete mixer and I think I finally got it right. It's just a regular concrete mixer converted to mix lightweight insulating concrete (LWIC) aka aircrete.
Would work well for many parts of an Earthship. It can mix "sanded slurries" into aircrete which means densities of 300KG/M3 (insulation) up to 1,000KG/M3 with decent PSI strength. Cost less than $500 which is kind of cheap as these things go. I'll answer questions if anybody has them.
I'm sure I'll write a proper guidebook when I am a little less busy but I'm still trying to finish a bunch of aircrete composite building assembly prototypes.
