G. Frohnsdorff

FROHNSDORFF, G. Geoffrey James Carl Frohnsdorff, 78, of Gaithersburg, Md., died from esophageal cancer March 5, 2006, at a nursing home in Potomac, Md. Dr. Frohnsdorff, an internationally known expert on the chemistry of cement and the durability of building materials, retired from his position...