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.

Date of Patent:
Mar. 12, 2013

Filed:

May. 17, 2010
Applicants:

Wes Woytowich, Calgary, CA;

Bill Carruthers, Montgomery, TX (US);

Benoit Cotnoir, Frisco, TX (US);

Paul Lehoux, Kirkland, CA;

Richard Mccorkle, Paducah, KY (US);

Eric Bowman, Metropolis, IL (US);

Inventors:

Wes Woytowich, Calgary, CA;

Bill Carruthers, Montgomery, TX (US);

Benoit Cotnoir, Frisco, TX (US);

Paul Lehoux, Kirkland, CA;

Richard McCorkle, Paducah, KY (US);

Eric Bowman, Metropolis, IL (US);

Assignee:

LaFarge, Paris, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/13 (2006.01); C04B 7/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A manufactured cementitious binder including a hydraulic binder in an amount in the range of from about 40 to 75% by weight of the cementitious binder; metakaolin in an amount greater than about 5% by weight of the cementitious binder; silica fume in an amount up to about 15% by weight of the cementitious binder; and cement kiln dust in an amount greater than about 10% by weight of the cementitious binder, the cement kiln dust including chlorine in an amount of at least 0.1% by weight of the cement kiln dust, the cementitious binder providing a cementitious settable composition, when added with water and without a lightweight additive, that has a density lower than about 13 pounds per gallon and greater than about 11 pounds per gallon and a 24 hour compressive strength at 100 F, as hardened, of at least 500 psi.


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