Hello out there. I have been commissioned to make decorative tiles for the new hospital in my area. The tiles will be 8 inches round and 3/4 inch thick with morter keys on the back. They will be installed in existing walkways approx 6 feet from one another. I am faced with several challenges. The hospital is located in northern Alberta Canada. Because they are exterior floor tiles there is the obvious concern with freeze thaw cycles and moisture absorbtion. The second concern is the surface of the tiles. I would like a non slip surface that doesnt interfere with the integrity of the slip decoration. It would seem that using a sand with jagged particles either mixed into the glaze or sprinkled onto the surface of the glaze before firing would be approriate. Any suggestions about what to use for this material? Ever heard of calcium zirconium silicate? Would this work? If so where do I access this material?
I am sure that others out there have been faced with a similar problem so any other ideas would be greatly appreciated. Lots of questions, I know. Hope someone can help. Thanks