Weight reduction as pretext to demolition.

After a week of curing. At least 300lbs. The mold is unscrewed and pops away clean. Some settling and a bit of layer separation at the bottom where I had technical issues with the first few mixes and they collapsed as they cured. A lot more red dye in those first mixes.
I back poured some collapsed areas with quickrete/perlite- the gray area…
The underside is the bench seat, and it came out smooth and strong.
The bench was an easy weight reduction of 40lbs. The mesh caused issues of a hollowed out collapse in the body of the form. It deflected the mix in a few other areas as well.
And the narrow bit of wall sawzalled off like styrofoam (embedded with rebar). Still over 200lbs. WTF? you might ask. Well; too big is too big, and a fail is a fail.
I ripped the top layer of aircrete & mess away without too much trouble, exposing another layer of solid concrete back-pour into a big gap.
Salvage the expensive bits. This bit of stovepipe is worth more than the all the concrete.
Sawzall weight reduction so I can expose the bottom. The venting system was flawless.
Easily tipped on its side now, this would have been the top.
Stovepipe salvage complete.
The is the Gorn’s stash of throwing boulders for lobbing at Captain Kirk.
All tidied up for round two.

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