Monday, June 14, 2010

FattyShell - concrete coral in flexible formwork

Before I forget - here's a link to a post on Dezeen Blog about  a concrete structure cast in flexible formwork that resembles the porous, organic structure of a coral reef.

[Image of FattyShell (v.01) by Kyle Sturgeon, Chris Holzwart and Kelly Raczkowski, image from]

The project is by Masters of Architecture students at the University of Michigan.

The work is great - so little formwork material for such a complex and light weight structure. The students cast in a rubber membrane cnc cut and stitched together. I'm pretty sure that they could have cast in several fabrics had they chosen to. the elasticity of rubber might have intreagued the team or maybe the choice of material was caused by limits of the cnc cutter?

[Image of FattyShell (v.01) under construction, image from]

[Image of FattyShell (v.01) under construction, image from]

The blog post informs us: "Fiber reinforced high cement based concrete is prepared in 12 batches at 265 lbs (3,200 lbs at completion). lifts occur at 3 hour intervals. At each lift, concrete is sculpted, transferred, or blocked from its gravitational destination in order to reinforce weaker moments in the shell’s composition.

[Image of FattyShell (v.01) with the formwork partly off, image from]

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