This stone needs a mix of 1 part Portland Cement, 2 parts Hydrated Lime & 4 parts white sand. Mix this to a thick paste with water and spread it generously (with rubber gloves on) into the large crevice showing at the top of the stone to prevent this stone from splitting in half. When dry this mix will seal out the water in a way to prevent the heat and expansion of water and shrinking of ice from breaking this stone up. WA 11/20/2004
Photo by Rick Gray.
