Abstract
A cementitious composite material wherein glass-coated steel rods are positioned in a cementitious matrix. The glass composition for coating the steel reinforcing rods includes between about 33-45 weight percent SiO2, 13.5-19.5 weight percent B2O3, 3.5-4.6 weight percent Al2O3, 4.0-13.5 weight percent K2O, 5.5-15.5 weight percent ZrO2, 8.6-15.9 weight percent Na2O, 4.6-5.1 weight percent CaO, 0.6-0.7 weight percent MnO2, 1.0-1.0 weight percent NiO, and 1.0-1.1 weight percent CoO. The glass composition is typically in compression on the rods at ambient temperatures, has a coefficient of thermal expansion of between about 12.5 and about 13.5, and has a softening temperature of between about 585 degrees Celsius and about 600 degrees Celsius.
Recommended Citation
R. K. Brow et al., "Corrosion-Resistant Glasses for Steel Enamels," U.S. Patents, Mar 2011.
Department(s)
Materials Science and Engineering
Second Department
Civil, Architectural and Environmental Engineering
Patent Application Number
US12/623,236
Patent Number
US7901769B2
Document Type
Patent
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2011 The Curators of the University of Missouri and Pro-Perma Engineered Coatings L.L.C., All rights reserved.
Publication Date
01 Mar 2011
Comments
The invention was made in part from government support under Grant No. W911NF-07-2-0062 from the Department of the Army. The U.S. Government has certain rights in the invention.