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. 27, 1999
Filed:
Sep. 24, 1998
Applicant:
Inventors:
David Bridson Oates, Kettleby, CA;
Michael David Thomas, Toronto, CA;
Philip de Zacarias, Mississauga, CA;
Donald Stephen Hopkins, Thornhill, CA;
Kevin Moire Cail, Aurora, CA;
Assignee:
Lafarge Canada, Inc., , CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
106705 ; 106709 ; 106737 ; 106819 ; 106D / ;
Abstract
A combination of a class C fly ash having a high analytical content of CaO, and a silica fume, with a hydraulic cement, such as Portland cement, produces concrete with alkali-silica reactive aggregate having acceptable low expansion such as by ASTM C 1260; and also produces sulphate resistance with mineral aggregates generally.