Abstract: A pozzolanic material-based coating and structural composition and method for forming into various forms. The components include: (a) water, (b) lime, (c) a majority of pozzolanic material, (d) a cross-linking agent (e.g. a fatty polyamide), and (e) an epoxy resin. When mixed with water the composition sets and hardens to form coatings and structures with good strength, adhesion, and flexibility. An optional fluidizing agent may be added to reduce the water requirements. The properties of the material may be varied by the addition of conventional fillers.