Building with rubble question

I'm somewhat familiar with slipform masonry building with rubble stones, but I'm wondering if it is possible to build a freeform structure with rubble and concrete/mortar so one can have, say, a round building? 

Chloe Taylor wrote:
Well what i would be advising for is, go for a concrete struture if you are looking for some thing that has got strength and able to with stand the forces of nature.....

I would actually advise to avoid concrete if you want some thing that has got strength and able to with stand the forces of nature..... It's only taken 50 years or so to show concrete to be a very inferior building material- especially modern, high strength concrete.

Tyler, all you need  to use traditional stone masonry. The world is full of round stone walls that are hundreds of years old. It takes more skill and labor, but it will last along time if done correctly

Thank you. 

There have been a couple of posts with gabion baskets, have you looked at those?

Yes, thanks. 

Orson Fowler of octagon house fame (and phrenology) originally promoted round houses. At some point he realized that round was a PITA.

Most round houses were actually 22± sided houses. Some of houses and many of the foundations were slip-formed rubble walls.

I don't see why a segmented slip-form wouldn't give a freeform effect, particularly after rendering purties it up.

There. I de-lurked. Hi!

  A lot of possibilities with slipforming.

  See de-lurking isn't that painful.

I guess a multi-sided building made with slipform is pretty darn close to "round"