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:
Jul. 05, 1977
Filed:
Mar. 23, 1976
Applicant:
Inventors:
James Allen Ray, Mantua, OH (US);
Thomas Joseph Lazio, Solon, OH (US);
Assignee:
Martin Marietta Corporation, Bethesda, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ;
U.S. Cl.
CPC ...
106104 ; 106314 ; 106315 ;
Abstract
Compositions and mixes of calcium aluminate cement with or without aggregates and with controlled amounts of calcium formate and preparation of the same, which significantly accelerate the setting times and early compressive strength gain of the product formed after addition of water for hydraulic setting of the cement. By careful control of composition and particularly of amount of calcium formate included, new calcium aluminate cement compositions and mixes are provided, useful for patching, topping and other uses where fast setting, and high early strength characteristics are required.