Rebar Geodesic Dome Idea

"Most" rebar domes are made of long lenths 10-20 long.
Most scrap rebar is a lot shorter than that.
Connecting geodesic dome struts is generally the hardest part..
Bending rebar is relatively easy.
A piece of rebar with a bend on the end is referred to in the industry as a hook.
A 180° hook is closest to an actual hook.
Put a hook on each  end and we can connect them with rebar loop ties.

Pearl let me know that the image for double ended 180° rebar hook did not come through .
Let me try again,  with her help:



It's not even  as neat and tidy an example as I would like but it gives the idea.

Seems like a good idea for a ferrocement shell

I realize PVC isn't environmentally friendly, but zip ties connecting PVC tubes (tighten them up afterwards) is quick and dirty for non load bearing applications such as a greenhouse or structure to tarp equipment or a fly screened / tent workspace

I do like that if you're going to use rebar, perhaps if you already have a bunch, your hooks provide the flexibility at the joints

Hey Ra, a reasonable compromise is to use rebar for the structural strength but sheath it with cheap 1/2" poly water pipe. That puts the tarp on another plastic that can rotate and flex with heat and wind. Definitely less nasty than PVC, and much cheaper.

That's brilliant Douglas!

You have helped me add to my future hoard of roadside landfill saves!
I see this stuff on occasion but since it could be contaminated I have never saved it for an irrigation project

I am so into domes being that I am still a kid!