This paper by Yota Adilenidou et al. presents a 3D Concrete Printing (3DCP) experiment at the full scale of virtual architectural bodies developed through a computational technique based on the use of Cellular Automata (CA).
This paper by Christoph Klemmt, Igor Pantic, Andrei Gheorghe and Adam Sebestyen, propose a methodology of discretized free-form Cellular Growth algorithms in order to utilize the emerging qualities of growth simulations for architectural design.
This video by Softology is about 3d cellular automata. Visions of Chaos is a professional high end software application for Windows. It is simple enough for people who do not understand the mathematics behind it, but advanced enough for fractal enthusiasts to tweak and customise to their needs.