I'll just leave this here, as I KNOW I'll need it when getting back to that old project of mine.. 
Again from Zacharias, a tutorial on how to create realistic looking “demolished” bits of concrete in 3D, using the Blender addon “Cell Fracture” and a rigid body simulation.
Again from Zacharias, a tutorial on how to create realistic looking “demolished” bits of concrete in 3D, using the Blender addon “Cell Fracture” and a rigid body simulation.