Mx Pia Foxhall @foxhall.bsky.social · 07/07/2026True, but it’s a handy way to use up waste concrete and industrial aggregate which needs somewhere to go anyway. 170
Andrew J. Bromage @pseudonym73.bsky.social · 07/07/2026I'm glad that someone is trying it. I feel like this sort of thing isn't as efficient as a lot of alternatives, but has the advantage that it's pretty cheap to build, especially if you use waste as the mass. 040
