I sculpt gunite (a form of concrete) and have no forum to talk in... I'm currently posting a WIP as a step by step in how we do our gunite sculpting, and how we get to the point where we get to sculpt... most of the rocks you see in the zoo are actually gunite.. carved to LOOK like rocks... Granted, most of my work is creating sharp, smooth, straight and curved walls, steps, and the like. But it is Sculpting, we have to carve out the shape we want or need, it's not easy, but rewarding... head on over to my gallery in the next few days to see the beginnings of a Gunite Swimming Pool, and how they are built. (They aren't poured concrete as some would believe, that would crack) This is my latest steps craved from a big pile of sloppy gunite.