Warp wrote:
> Invisible <voi### [at] devnull> wrote:
>> Is it possible for concrete to set while it's still in motion?
> 
>   I would guess that water cannot remain there for infinity, so the
> concrete is going to dry eventually. If it's constantly being disturbed,
> I assume what you get is a bunch of concrete gravel.

Mmm, seems plausible.

FWIW, as I understand it, it's not the water as such. The setting of 
concrete involves a chemical reaction rather than the mere removal of 
the water.

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