The above two images are an example of a Binishell – an engineering marvel in which a canvas of wet concrete is lifted into a dome shape by pumping air into a dome shaped balloon below the concrete.  Its a brilliant and simple system that when properly installed provides an amazing solution to low cost construction; your formwork is a balloon and air!  There were some high profile collapses in Australia related to poor installation of the Binishell, which may explain why it is not very widely used.  For more info on the Binishell, check out there own documentary here.

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Filed under Architecture, Exotic Architecture

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