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. 08, 2016

Filed:

Jan. 28, 2015
Applicant:

The Board of Regents of the University of Nebraska, Lincoln, NE (US);

Inventors:

Christopher Tuan, Omaha, NE (US);

Lim Nguyen, Bellevue, NE (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C04B 14/22 (2006.01); C04B 14/24 (2006.01); C04B 14/48 (2006.01); C04B 14/02 (2006.01); C04B 40/00 (2006.01); H01B 1/16 (2006.01);
U.S. Cl.
CPC ...
C04B 14/022 (2013.01); C04B 14/024 (2013.01); C04B 14/48 (2013.01); C04B 40/001 (2013.01); H01B 1/16 (2013.01);
Abstract

Conductive concrete mixtures are described that are configured to provide EMP shielding and reflect and/or absorb, for instance, EM waves propagating through the conductive concrete mixture. The conductive concrete mixtures include cement, aggregate, water, metallic conductive material, and conductive carbon particles and/or magnetic material. The conductive material may include steel fibers, and the magnetic material may include taconite aggregate. The conductive concrete mixture may also include graphite powder, silica fume, and/or other supplementary cementitious materials (SCM). The conductive carbon particles may comprise from about zero to twenty-five percent (0-25%) of the conductive concrete mixture by weight and/or the magnetic material may comprise from about zero to fifty percent (0-50%) of the conductive concrete mixture by weight.


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