use concrete to fill in marshes, mud, and shallow water

[Laos]

I wasn't sure if this was suggested already though I think I couldn't find it. Basically concrete involves digging out the ground and filling it in - so why not let it work with mud, swamp, and shallow water, which in a real world sense you would do exactly that with - dig out and fill with concrete to make into regular floors - especially with the indoor caves.

Thoughts?

[Zael]

Seems legit. I just use the fertilizer pump to clear areas that I can't do anything on though.
I don't see why we can't at least sand fill in marshes or mud. Dry the area with stone blocks that have been crushed into sand, if you needed an excuse for a resource to use for sand.

[Damien Hart]

Concrete itself wouldn't do, as it only affects the surface; underneath would still be soft, and the building would shift over time (Leaning Tower of RimWorld?).

I suggested somewhere using proper foundations, which would cost a decent bit of metal and stone to construct, that would then be treated like any other floor, so you could build your wooden floorboards, carpets, etc. over the top.

[Laos]

Concrete isn't just the surface - many houses are built on concrete slabs dug into the ground - you'd just need to dig deep enough to remove the improper ground (just like digging out a cavity from a tooth)

Foundation is the same premise though, just different wording. Sand, concrete - anything to make unusable ground usable.

[Damien Hart]

I was a little non-specific in my first post, sorry. What I mean is that the concrete already in the game, being quite cheap, can be reasonably assumed to be quite shallow, like a footpath or something similar.

Considering it would need to be fairly deep to support a building on the softer terrain, not to mention in water, a separate object should be used, with a higher cost reflecting the increased volume, with stone for aggregate and metal for rebar.