Working on an indie project that involves a character punching through a concrete wall (smooth, not block). The wall will have to be constructed on location and possibly be easy enough to patch for an additional take (should something go horribly wrong). I'm thinking some sort of brittle clay sheet for the either side of the wall, and plenty of concrete dust and gravel to fill the inside. Everything would be framed with 2x4's.
Should I Just drywall the majority of the wall, slick coat it with drywall mud, and patch in the clay sheet where the punching takes place? Any materials I should specifically be looking for?
One of those hard to get and specific materials to look for would be good- looking but hopelessly brittle wood. You might take rotted termite wood and laminate a thin layer of bass or balsa wood or "wood on paper" on the camera`s side if you have to. Pick demolition waste from the right places for some (not necessarily all) of your materials.