Patent ID: 8679389
Filing Date: 2014-03-25
Classification: C03C,E04C,Y10T

Abstract:
1. A method for producing composite structural material comprising in combination: providing a cementitious matrix; positioning a plurality of steel reinforcing rods positioned in the cementious matrix; and substantially encapsulating each respective steel reinforcing rod in a vitreous shell; and substantially encasing the plurality of steel reinforcing rods in the cementitious matrix; wherein each respective steel reinforcing rod has a coefficient of thermal expansion of between about 14 ppm/° C. and about 17 ppm/° C.; and wherein each respective vitreous shell has a composition consisting essentially, in weight percent, of about 33-45% SiO wherein each respective vitreous shell has a coefficient of thermal expansion between about 12.5 ppm/° C. and about 13.5 ppm/° C.