The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 15, 2004
Filed:
Sep. 12, 2000
Applicant:
Inventors:
Kurt F. von Fay, Littleton, CO (US);
William F. Kepler, Golden, CO (US);
Assignee:
The United States of America as represented by the Secretary of the Interior, Washington, DC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 1/406 ;
U.S. Cl.
CPC ...
C04B 1/406 ;
Abstract
A cement repair material composition is provided for repairing thin concrete. The composition comprises, in weight percentages: fine aggregates, 50-80%; cement, 10-20%, said cement being selected from the group consisting of expansive hydraulic cement, gypsum cement, and magnesium phosphate cement; reinforcing fibers such as polyethylene, steel and fiberglass fibers, 1-5%; and a first water-reducing chemical additive, and a second shrinkage compensating chemical additive, a combined 0.01 to 5%.